Classic Projects

        Hunan Chemical Engineering Design Institute Co., Ltd. (formerly known as Hunan Chemical and Pharmaceutical Design Institute) serves as a provincial-level design institute for chemical, petrochemical and pharmaceutical industries, and has been recognized as a National High-tech Enterprise, one of the SMEs that use special and sophisticated technologies to produce novel and unique products in Hunan Province, Hunan Joint Postgraduate Training Base Based on Industry-Education Integration, an oil & gas consulting agency and decision-making think tank in Hunan Province (Hunan Oil & Gas Development Research Institute), and an integrated technical consulting agency for planning, consulting, evaluation and diagnosis regarding chemical industry parks. We have three technological innovation platforms, including the “Provincial Enterprise Technology Center” under the Industry and Information Technology Department of Hunan Province, the “Municipal Technological Innovation Center for Electrochemical Energy Storage Materials” under the Changsha Science and Technology Bureau, and the “Municipal Enterprise Technology Center” under the Changsha Development and Reform Commission.■ With more than 60 years of experience in chemical, petrochemical, pharmaceutical, construction, municipal and other fields, we possess “special and sophisticated” technologies with distinctive features and clear advantages, secure the leading position in terms of qualifications among the industry departments and institutes, as well as provincial-level institutes, and boast strong and long-standing technological strength and foundation; ■ Relying on the Institute, Hunan Energy Administration set up the Hunan Oil & Gas Development Research Institute, which is positioned as the oil & gas consulting agency and decision-making think tank of Hunan Energy Administration to serve the oil & gas development strategy of Hunan Province in an all-round way; ■ Relying on our well-established and leading core patents and proprietary technologies of chemical processes, we continue to increase our efforts in scientific and technological research and development, continuously achieving upgrades in both our process technology roadmap and solutions; we also, relying on our joint postgraduate training base, strengthen the construction of the provincial-level technical expert team and the technical exchanges and cooperation with well-known universities and research institutes; ■ The Institute has introduced a large number of highly qualified professional, technical and management personnel led by professor-level senior engineers, doctors and masters, including 93 professor-level senior engineers and senior titles, and 78 doctoral and master’s degree holders, with a total of 150 certificates of various types of registered engineers, Our personnel have formed a well-structured cascading technical team in the order of “survey and design masters - professional leaders - technical backbones (registered experts) - new personnel (postgraduates)”. ■ At the forefront of building a team of technical experts in Hunan Province, we are working with 50 experts commissioned by the Development and Reform Commission of Hunan Province to evaluate construction projects, 14 experts on provincial-level emergency management, 2 experts on provincial-level carbon peaking and carbon neutrality in the industrial field (chemical industry), 13 experts from the survey and design industry of the Housing and Urban-Rural Development Department of Hunan Province, 8 experts handling disputed construction drawing review issues of the Housing and Urban-Rural Development Department and the Civil Air Defence Office of Hunan Province, 30 assessment and consulting experts from Changsha Development and Reform Commission, 21 experts from the Changsha Emergency Management Expert Pool, 21 experts from the Changsha Survey and Design Management Expert Pool, as well as many experts from the Department of Science and Technology of Hunan Province, Hunan Energy Administration (oil & gas), Hunan Fire and Rescue (chemical industry), and the Provincial Technical Expert Pools for Engineering Assessment and Bids Evaluation; ■ With our team members holding more than 180 posts of group leaders and senior experts of various expert pools at the provincial, ministerial, municipal and industry levels, we have provided a full range of integrated technical services such as planning, consulting, review, design, inherent process safety diagnosis for industrial parks and enterprises, safety evaluation, HAZOP analysis, and project acceptance, for relevant government departments, chemical (pharmaceutical) industrial parks, and relevant investors in the chemical, petrochemical, pharmaceutical, construction, municipal and other fields; ■ We have made a lot of distinctive achievements and accomplished many classic projects in the aspect of the chemical (pharmaceutical) industry and parks (planning, consulting, assessment, verification, expert services, etc.), as well as related construction projects (planning, consulting, survey, design, general contracting, safety evaluation, safety design diagnosis, etc.).

      The detailed list of the achievements made by the Institute in related fields is available in the following three ways for your all-round and quick understanding:
      Click the links to the classified project achievements (planning consulting, chemical & petrochemical, process package engineering, pharmaceutical industry, construction industry, municipal & environmental protection, geotechnical survey, project general contracting, international projects, non-standard equipment, and others) under “Classic Projects” in the “Project Achievements” column of the website;
      （2）Click “Download Corporate Brochure” in the yellow box at the top of the homepage of the website to download and view the brochure;
      （3）Obtain the latest and most complete list of detailed achievements by consulting with Mr. Zhou, Head of the Management Department (Tel.: 18975105948) or Mr. Yang, Director of the Management Department (Tel.: 13808463410) by phone.

       一、Characteristic service achievements in the chemical (pharmaceutical) industry and parks
      Supported by the technical strength behind numerous achievements the general planning, survey and design for chemical (pharmaceutical) projects made over the past 60 years, and taking the regulations, norms and policy documents closely related to segments of the chemical (pharmaceutical) industry as our basis for preparation, such as general planning, chemical process and equipment, electric automatic control, architectural structure, water supply and drainage, utilities, safety and environmental protection, fire protection, industrial policies and technical economy, we provide technical services with remarkable advantages and characteristics, including the most professional, all-round, systematic, integrated and interconnected planning, consulting, review and other technical consulting for the chemical (pharmaceutical) industry and parks. We have a strong track record of technical consulting services in all areas (Click “Planning Consulting”-”Industry and Park Planning Consulting” in the “Project Achievements” column of the website, and then click the link:  http://www.chcd.cn/news/772.html）：

      (Technical consulting with provincial experts: Mr. Zeng, Tel.: 13873152654; Mr. Zhou, Tel.: 13017189303)
      （1）Provincial and prefecture levels: chemical (pharmaceutical) industry development planning, industrial development planning, safety development planning, land space planning for hazardous chemical storage layout, carbon peaking and carbon neutrality planning research, etc.; expert services.
      （2）Chemical (pharmaceutical) industrial parks:
       1、Overall development planning, industrial development planning, safety development planning, etc. for parks;
       2、Site selection for new parks, site comparison and selection, feasibility study, regulatory detailed planning, transfer and expansion, etc.;
       3、Guidelines for industrial development of parks, and catalogs of prohibitions, restrictions and controls; project access and evaluation; multi-disciplinary expert pool and expert services for chemical (pharmaceutical) projects in parks;
       4、Overall safety risk assessment for parks, “one policy for one park” safety improvement plan, “one map and one chart” on safety risk distribution, and safety risk grading and control system; planning and layout, safety risk assessment and safety evaluation of park projects; site selection, comparison and safety assessment for parks and projects;
       5、Other special plans and technical documents of parks: comprehensive disaster prevention and mitigation plans, special plans for natural disasters, fire planning, accidental wastewater analysis reports, overall emergency plans & special plans, etc.;
       6、Design verification, system diagnosis, and expert services for inherent process safety (general drawing, process, equipment, automatic control, fire control, safety, building, structure, etc.) in chemical industrial parks and enterprises; safety design diagnosis for in-service chemical plants;
       7、Other technical consulting services for parks.     

  
       二、Construction project achievements in related engineering fields (planning, consulting, survey, design, general contracting, safety evaluation, and safety design diagnosis)
       Taking chemical, pharmaceutical, and oil & gas projects as the engine and keeping in step the characteristic development of construction, municipal and environmental protection projects, the Institute has formed its own technological advantages in the chemical industry segments, such as PDO, Hydrogen Peroxide, coating, acetate, caustic soda, Polyvinyl Alcohol, Sodium Hydrosulfite, paste resin, new energy battery materials, and other systems, and accumulated extensive engineering experience in process package design, engineering of experimental sets and international projects, as well as remarkable mature project achievements and relevant characteristic technologies in related business fields, as follows:
       （1）Chemical industry field: A large number of chemical engineering projects that vary in types, solutions and process routes, including Hydrogen Peroxide, coating, caustic soda and chlorine products made by organic chemical, inorganic chemical and fine chemical engineering; Polyvinyl Alcohol (PVA), PVC paste resin, acetic acid & acetate, Sodium Hydrosulfite, PDO, polyimide film, photosensitive dry film for PCB, dismantling and utilization of waste power batteries for new energy vehicles, Cobaltosic Oxide, precursors for anode materials, Si-based anode materials, anode materials for lithium batteries, Nickel-Cobalt-Manganese ternary precursor materials, Iron Phosphate, Lithium Iron Phosphate, Manganese Sulfate & high-purity Manganese Sulfate, high-purity Potassium Nitrate, ammonia synthesis & compound fertilizer, biodiesel, ethyl alcohol, carbonyl iron powder, Methylaniline, N-Ethylaniline, Ammonium Bicarbonate, special amines, Polyacrylamide, 2-Hydroxy-4-(Methylthio)butyric Acid, Cyclohexanecarboxylic Acid, Azelaic Acid, Potassium Dicyanoaurate, Olefin epoxidation auxiliaries, 2-Ethylanthraquinone, Trimethylolpropane, Anhydrous Hydrogen Fluoride, Magnesium Chloride Hexahydrate, Magnesium Hydroxide, Magnesium Sulfate Heptahydrate, Calcium Chloride Dihydrate, Ferrous Oxalate, Ferric Trichloride, Sodium Chloride, Nitric Acid, Potassium Nitrate, Barium Nitrate, Ammonium Nitrate, Mirabilite, Phosphate Compound Fertilizer, Lithium Carbonate, Strontium Carbonate, Barium Carbonate, Lithium Dihydrogen Phosphate, White Carbon Black, Chlorate, Ammonium Perchlorate, MPDA, Fluoride Salt, silicone oil & auxiliaries for coating, 3,3,5,5-Tetramethylbiphenyl-4,4-diol, new environmentally friendly H-DINP plasticizer, 2-sec-Butylphenol, Chloromethyl Thiazole, O-cresol, Betaine, Sorbic Acid, Potassium Sorbate, Epichlorohydrin, asphalt & asphalt reservoir, pesticide, Sodium Metabisulfite, etc.;
       （2）Pharmaceutical field: Pharmaceutical engineering projects, including APIs (sterile and non-sterile), chemical-pharmaceutical preparations, bioengineering (cellular engineering), antibiotic drugs, traditional Chinese medicine decoction pieces, modern Chinese medicine (plant) extracts, Chinese medicine preparations, veterinary drugs, health care products, cosmetics, biological agents, vaccines, inspection and quarantine rooms, SPF animal rooms, medical devices, pharmaceutical packaging materials, health preservation (herbal medicine cultivation centers and rest centers), etc.; hospitals (outpatient clinics, inpatient departments, preparation rooms, operating rooms, ICU wards, research centers, PET-CT nuclear medicine imaging, and medical gas pipeline and hospital supply centers), and other pharmaceutical and purification engineering projects;
       （3）Oil & gas field: oil and gas transmission and distribution, municipal gas pipe network, city gate stations, gas holder stations, pressure regulating stations, gas filling stations, gas stations and charging piles, etc.;
       （4）Construction & municipal fields: regulatory detailed planning, as well as general planning for the transfer, expansion, parks and projects; construction projects (theaters, exhibition halls, schools, hospitals, real estate, hotels, agriculture-tourism, and offices), municipal and environmental protection projects (treatment projects for water plants, municipal sewage, chemical wastewater, wine industry wastewater, landfills, kitchen waste, tailings & slags, etc.), as well as a wide range of architectural, municipal and environmental protection projects supporting the chemical and pharmaceutical projects.

       三、Brief introduction of classic projects with distinctive technical features (in order of chemical, pharmaceutical, oil & gas transmission and distribution, construction, municipal and environmental protection fields)
       （1）Chemical industry field
       1、Hydrogen peroxide field: The Institute adopts the domestically advanced and inherently safe process of preparing hydrogen peroxide from an all-acid working solution system (eliminating the alkali treatment process for raffinate), which is safe and simple, eliminates unsafe potential hazards at the source that may lead to the above relevant causes of explosions, and achieves high hydrogen efficiency and high product quality. This process avoids the defect of alumina powder contaminating the catalyst, greatly improving the usage cycle of the catalyst. Moreover, the small amount of external automated alkaline cleaning of the working solution covered by the process is an approach to effectively avoiding the mixed alkali effect in the plant, which is a unique leading edge in inherent safety. Based on the advanced nature of this process, the Institute was awarded the 2015 Proprietary Technology (Proprietary Technology No.: ZYJS2015-027S), and 2020 Continuing Proprietary Technology (Proprietary Technology No.: ZYJS2020-009SR) titled “A New Process - Engineering Design for Hydrogen Peroxide Preparation under All-acid Working Solution Conditions” by China Petroleum & Chemical Engineering Survey and Design Association.

      The process of preparing hydrogen peroxide from an all-acid working solution system has advantages in many aspects, such as the preparation and selection of catalysts, the preparation of new working solutions, the improvement and optimization of the process plant, the unique design of the production process and control system, and the complete and efficient safety and environmental protection system. Compared with the traditional hydrogen peroxide preparation process, this proprietary technology has clear advantages, as follows: (1) It eliminates the alkali treatment process for the working solution raffinate, avoiding the safety accidents that may be caused by alkali in the production process; the hydrogen peroxide preparation plant is inherently safe in process scheme; (2) A new fixed-bed palladium catalyst with high activity and high selectivity is used, significantly reducing the amount of catalyst used and decreasing the amount of by-products generated; (3) A new working solution system is used, which improves the production efficiency per unit volume of working solution, thereby reducing both the energy consumption of the plant and the investment in the plant; (4) A new high-efficiency hydrogenation process is adopted, which gives full play to the performance of the catalyst and effectively inhibits side reactions; (5) A high-efficiency extraction column is designed and utilized, which ensures high extraction concentrations and low raffinate; (6) Vacuum dehydration technology is applied to raffinate to ensure that the water content in the working solution is up to the standard; (7) The external cleaning and regeneration technology is applied to the working solution to ensure the relative balance of the components of the working solution system.

         In this field, the Institute has made remarkable achievements in engineering design of 29 sets of hydrogen peroxide plants that have been built, as well as 3 domestic and international EPC projects, including the EPC project of Shandong Jufeng New Energy Co., Ltd. for 225,000 t/a hydrogen peroxide (27.5%), the EPC project of Singapore RGE Group and RAPP Group Indonesia for 180 TPD of hydrogen peroxide at Kerinci, and the EPC project of PRI Group Indonesia for 192 TPD of hydrogen peroxide. The process of preparing hydrogen peroxide from an all-acid working solution system was successfully applied to the hydrogen peroxide project of Dasheng Chemical Technology Co., Ltd. in Tiandong, Guangxi, building the first industrial installation with a fixed-bed all-acid working solution system and a capacity of 20,000 t/a (technically improved to 60,000 t/a in 2014) in China. After being put into production, the project caused a sensational effect in the domestic hydrogen peroxide industry and attracted great attention by virtue of its unique core competitiveness and cost advantage brought about by our leading technology. The proprietary technology has been successfully applied in many projects, such as the 100,000 t/a HPPO industrial test plant (with annual output of 300,000 tons of 27.5% hydrogen peroxide) of SINOPEC Changling, the project of Henan Hongda Chemical Co., Ltd. for 150,000 t/a hydrogen peroxide (27.5%), the project of Inner Mongolia Dakang Industrial Co., Ltd. for 100,000 t/a hydrogen peroxide (27.5%), and the technical improvement project of Ruyuan HEC Electrochemical Plant for 80,000 t/a hydrogen peroxide (improved to 140,000 tons from 80,000 tons).
       2、PDO field: PDO is an important chemical material and is most commonly used as a monomer in polyester and polyurethane synthesis, which is polymerized with terephthalic acid (PTA) to produce polytrimethylene terephthalate (PTT) fibers, a new type of polyester fiber with excellent performance. The PTT fiber has become one of the latest popular polymer materials developed in the world, is rated as one of the six new petrochemical products in the United States, and is considered to be an upgrade from polyethylene terephthalate (PET). Since the 1990s, the Institute has been cooperating with Tsinghua University in studying the process of producing PDO by fermentation. We have designed several sets of pilot and production plants for PDO production by fermentation for companies such as Heilongjiang Chenneng, Hunan Hainabachuan, Henan Tianguan, Suzhou Suzhen, and Guangdong Tsinghua Smart Biotech. We have gradually optimized and improved the initial 5-ton fermentation tank and the pilot plant with annual output of 50 tons to the current 400-ton fermentation tank and the industrial production plant with annual output of 10,000 tons, respectively, thus successfully realized the industrialization of the research results of PDO production by fermentation, and building up the leading position of the Institute in the field of PDO industrialization in China.
       3、Manganese sulfate and high-purity manganese sulfate: Relying on its well-established and leading core patents and proprietary technologies of chemical processes, the Institute has been a domestic leader in the competitive strength of high-purity manganese sulfate, a material for new energy batteries, as well as in the engineering technology segment. In 2022, we signed a contract with Ningxia Tianyuan Manganese Industry Group, a global manganese leader, for the project of 1 million t/a high-purity manganese sulphate, and a contract with Hubei Changchen Lithium Energy Co., Ltd. for the project of 60,000 t/a high-purity manganese sulphate, and took on the feasibility studies, planning and design of multiple projects one after another.
      We have designed and completed many classic projects of manganese sulfate and high-purity manganese sulfate, as follows: After being put into production, the project of Guizhou Dalong Huicheng New Material Co., Ltd., by coupling the production process of active manganese for batteries with that of manganese sulphate for batteries, has realized both the company’s global and domestic market share of high-purity manganese sulfate for batteries exceeding 60% for two consecutive years; Guangxi ISKY 150,000 t/a high-purity manganese sulfate project, currently the largest high-purity manganese sulfate plant project by single set capacity in China, won the third place of Energy China’s Top 10 “Most Capable” in 2021 (also won the 2020 Guangxi Steel Structure Gold Award); upon completion, the technical improvement project of Inner Mongolia Jinshan Mining Co., Ltd. for 35,000 t/a MnSO₄-H₂O from comprehensive utilization of refractory low-grade silver-manganese oxide ores and tailings in Eren Tolgoi became a breakthrough in the world-class technical problem and bottleneck of manganese-silver separation.
      4、New energy battery material field: Relying on its strong track record of core patents and leading proprietary technologies of chemical process, the Institute continues to increase efforts in scientific and technological research and development; we also, relying on our joint postgraduate training base, make efforts to strengthen the construction of the provincial-level technical expert team, as well as technical exchanges and cooperation with well-known universities and research institutes. In the fields of new energy battery materials, including manganese sulfate and high-purity manganese sulfate, Nickel-Cobalt-Manganese ternary anode precursor, lithium carbonate, iron phosphate, lithium battery anode, lithium iron phosphate precursor, and electrolyte, as well as dismantling and recycling of waste batteries, we have formed solid technical strength and a strong track record of projects that have been completed and put into production. Over the past year, a large number of new energy battery material investment enterprises have visited the Institute for preliminary communication, technical exchanges, planning seminars and solution R&D with us. We have continued to sign a lot of projects related to new energy battery materials, including the project engineering designs for Yunnan Yuneng, Zhaoqing Jinsheng, Jiangxi Ruida, Hunan Five Cred Recycle, Huaihua J&C, Hunan Zerafber, Ningxia Tianyuan, Hubei Changchen, and Yunnan Shengbihe, contributing to further development of the domestic industry of new energy battery materials.

      With the rapid development of our new energy battery materials business in recent years, the Institute has successively undertaken new projects for new energy battery materials and waste power battery recycling projects of many companies, such as Chengdu Rongda Metal Technology, Jinchi Energy Materials, Guangdong Brunp Recycling Technology, Hunan Brunp Recycling Technology, Jiangxi Zhengtuo New Energy Technology, Gold Sky Energy Materials, Isky (Guangxi) New Materials, and Guizhou Dalong Huicheng New Material. The product series of these projects cover Nickel-Cobalt-Manganese ternary precursor materials, materials for positive and negative electrodes of lithium batteries, Cobaltosic Oxide, Lithium Carbonate, Iron Phosphate, high-purity Manganese Sulfate, etc. For Chengdu Rongda Metal Technology’s project of recycling positive and negative electrode materials of lithium batteries for precursors, relying on the technology of hydrometallurgical recovery of nickel, cobalt and manganese by acid leaching and extraction developed by Central South University and other institutions, we utilized the recovered nickel, cobalt and manganese sulfate solutions to produce ternary precursor materials for lithium batteries, and the recovered lithium to produce lithium carbonate. Through the implementation of this project, we have eased the social pressure on the recycling and disposal of waste power batteries, and realized the recycling of nickel, cobalt, manganese, lithium and other resources, making an outstanding contribution to environment protection and resource conservation. The Institute is at the forefront of the domestic comprehensive waste battery recycling industry in terms of technology. In Guizhou Dalong Huicheng New Material’s industrial park project for new materials of batteries, we coupled the entire production process of the active manganese for batteries with that of manganese sulfate for batteries, achieving the clean production of active manganese. Both the company’s global and domestic market share of manganese sulfate for batteries have exceeded 60% for two consecutive years, enabling the company to occupy a leading position in this product segment.

      5、Coating industry field: The Institute has a high visibility and strong track record in the domestic coating industry. Since the 1990s, we have made achievements in many areas of the coating industry, including automotive, architectural, industrial, marine, road & bridge and furniture coatings, etc., with our product range covering solvent-based coatings, high-end water-based coatings, UV-curable coatings, fluorocarbon coatings, etc. Hunan Xiangjiang Kansai Paint Co., Ltd. (whose projects, from plant construction to several relocations and expansions, were designed by the Institute) is a well-known supplier of automotive OEM coatings in China, occupying a leading share of the domestic OEM market of automotive coatings. Dalian Zhenbang Fluorocarbon Paint Co., Ltd. is the largest producer and vendor of fluororesin and fluorocarbon paint in China, and produced China’s first bucket of fluorocarbon paint in 1999, which made China become the third country in the world after the United States and Japan to realize the industrialization of FEVE fluororesin coatings. Dalian Mingchen Zhenbang’s fluorine coatings industrialization project (with an annual output of 10,000 tons of fluorocarbon coatings), designed by the Institute, has successfully taken the lead in industrializing and scaling up the national high-tech achievements in China, improving the industrial structure of China’s coating industry, and driving technology and product upgrading in the coating industry. The coatings produced in the project have replaced imported products, enhancing the market competitiveness of domestic coatings.
       6、Caustic soda field: After several expansions, Hengyang King Board Chemical Co., Ltd., one of our long-term clients, has realized the production capacity of 420,000 t/a ionic membrane caustic soda, becoming a large-scale chlor-alkali production base in Central-South China; it adopts advanced, energy-saving production processes and plants, so that all the waste heat, waste water and waste gas generated in the production process can be treated and recycled. The caustic soda projects undertaken by the Institute include: Guangxi Bossco’s 250 t/d caustic soda preparation system for the chlor-alkali plant at TjiwiKimia, Indonesia; Phase I works on the technical improvement project of Hubei Qianjiang Xianqiao Chemical Products Co., Ltd. for 150,000 t/a total halogenated caustic production using zero-polar-distance ionic membranes; Ruyuan HEC’s project of 200,000 t/a caustic soda production using ionic membranes; Dalian Haiye Petrochemical’s project of 300 kt/a caustic soda production using ionic membranes on Changxing Island, etc.
       7、PVC paste resin field: With its excellent pasting property and dispersing performance, PVC paste resin is mainly used in the field of soft materials of PVC resin. It is applicable to coating, impregnation, spraying, foaming and other processing techniques, and is widely used for many materials and products, including artificial leather, decorative materials, plastic flooring, wallpaper, industrial conveyor belts, sports grounds, coatings, adhesives, toys, medical disposable gloves, household decorative materials, electric instruments, electric tools, etc. The Institute designed PVC paste resin products for CNSG Jilantai Salt Chemical (Group) Co., Ltd., which feature stable production, low viscosity, low residual monomer content, and lower energy consumption than the advanced level of PVC paste resin in the industry. In addition, the Institute designed the 200,000 t/a special paste resin project of Shandong Langhui Petrochemicals Co., Ltd., and the technical improvement project of Chenzhou Huaxiang Chemical Co., Ltd. for 80,000 t/a PVC paste resin and ancillary products.            
       8、Acetate field: Based on the 1,000 t/a acetate pilot plant, the Institute has built industrialized production plants of sec-Butyl Acetate with an annual output of 20,000-100,000 tons in Yueyang (Hunan), Huizhou (Guangdong), and Panjin (Liaoning), through the whole process of development-based engineering design from process package and preliminary design to construction drawings. The products from the project of 100,000 t/a industrial production plant in Huizhou, Guangdong Province have formed significant influence in the domestic and international solvent markets, and the related partners include internationally renowned companies such as BP, Celanese, AkzoNobel and Nippon. In 2016, the project was awarded the Engineering Design Proprietary Technology titled “A New Process - One-step Synthesis of sec-Butyl Acetate by Olefin Addition” (Proprietary Technology No.: ZYJS2016-013S) by China Petroleum & Chemical Engineering Survey and Design Association. The proprietary technology has been applied to SINOPEC Changling’s industrial test plant for 20,000 t/a acetate, Huizhou Zhongchuang’s integrated plant for 100,000 t/a sec-Butyl Acetate and auxiliary projects, Liaoning Haidexin Chemical’s plant for 100,000 t/a sec-Butyl Acetate, Hunan Zhongchuang Chemical’s project for 100,000 t/a sec-Butyl Acetate, etc.
       9、o-Cresol field: At present, o-Cresol is mainly produced globally by phenol alkylation technology, with production plants concentrated in industrially developed countries. Most of the existing production plants prioritize the production of 2,6-dimethylphenol, combined with the production of o-Cresol. The 15 kt/a o-Cresol plant developed and designed by the Institute is an industrial production plant constructed utilizing the technology process of synthesizing o-Cresol directly from phenol and methanol alkylation, aimed at single production of o-Cresol, which fills the gap in respect of such technology. In 2016, the project was awarded the proprietary technology titled “An Engineering Design for the Synthesis of o-Cresol by Alkylation Reaction” (Proprietary Technology No.: ZYJS2016-012S) by China Petroleum & Chemical Engineering Survey and Design Association. The proprietary technology has been applied to projects such as the 15 kt/a o-Cresol plant of Hunan Xinling Chemical Industry Co., Ltd.
       10、High-purity potassium nitrate field: In recent years, with the rapid development of China’s molten salt energy storage industry, the demand for molten salt-grade potassium nitrate is rapidly increasing, and new requirements are placed on the quality of potassium nitrate. The Institute has applied our independently developed process of producing high-purity potassium nitrate from nitric acid and magnesium oxide to the high-purity potassium nitrate project of Shandong Tyee Chemical Co., Ltd., which makes the high-purity potassium nitrate production plant a technological leader in terms of investment, safety performance, product quality stability, raw material recovery rate, energy consumption, production personnel, etc. The plant is capable of directly producing high-purity potassium nitrate products with a content of more than 99.9%. Although its product quality is basically comparable to that of overseas (Jordan and Israel) processes, it requires lower investment and consumption. This technology has been awarded the proprietary technology titled “A New Process - Engineering Design for One-step Production of High-purity Potassium Nitrate from Nitric Acid and Magnesium Oxide” by China Petroleum & Chemical Engineering Survey and Design Association. Meanwhile, the technology is being transferred and engineered to several enterprises, including Hebei Jizhong Energy Group.
       11、Multiphase flow environment test facility for structural materials: The National Center for Material Service Safety (NCMS), established by the University of Science and Technology Beijing (USTB) in 2010, is the fourth national science center approved for establishment after the National Center for Nanoscience and Technology, Experimental Advanced Superconducting Tokamak in Hefei, and Shanghai Synchrotron Radiation Facility. In the project of NCMS’s multiphase flow environment test facility for structural materials, the Institute built the first set of multiphase flow large-pipe diameter testing loop facility in China, and achieved the complete equipment localization. This is the first facility in China that has realized the lifting of pipelines from 0° to 90° at any angle. It is capable of simulating the high-temperature and high-pressure working environment where media of four phases, namely oil, gas, water and solid, coexist, and covers all multiphase and various combinations of flow patterns. In terms of the number of test phases, test pressure, experimental temperature, pipe diameter, flow rate and other technical indicators, the facility is generally at the international leading level, providing a test basis for the core issue of corrosion in multiphase flow pipeline structures in China. Currently, the Institute has declared the proprietary technology titled “A New Process - A Service Safety Evaluation Facility for Major Engineering Materials - Engineering Design for a Multiphase Flow Environment Test Facility for Structural Materials” for this technology.

       （2）Pharmaceutical field
       Hunan Pharmaceutical Design Institute merged with the Institute in 2001. Over the years, the Institute has mastered a large number of mature and leading process technologies in the fields of (1) hospitals (pharmaceutical engineering and purification engineering, including outpatient clinics, inpatient departments, preparation rooms, operating rooms, ICU wards, research centers, PET-CT nuclear medicine imaging, and medical gas pipeline and hospital supply centers) and (2) pharmaceutical preparations [pharmaceutical engineering projects: including APIs (sterile and non-sterile), chemical-pharmaceutical preparations, bioengineering (cellular engineering), antibiotic drugs, traditional Chinese medicine decoction pieces, modern Chinese medicine (plant) extracts, Chinese medicine preparations, veterinary drugs, health care products, cosmetics, biological agents, vaccines, inspection and quarantine rooms, SPF animal rooms, medical devices, pharmaceutical packaging materials, health preservation (herbal medicine cultivation centers and rest centers)], and has made remarkable achievements in application projects.
      Field of hospitals: The Institute has designed complete hospitals, ICU wards, operating rooms, PET-CT workshops (nuclear medicine imaging), preparation rooms, supply centers, medical gas pipelines and other projects for a large number of well-known and backbone hospitals, including the Second Xiangya Hospital of Central South University, Union Hospital in Wuhan, the First Affiliated Hospital of Sun Yat-sen University, the First People’s Hospital of Huaihua, Taojiang County People’s Hospital, Xiangtan Chinese Medicine Hospital, Shapingba District People’s Hospital, etc.
       Pharmaceuticals field: In Phase II project of Hunan Baolishi Biological Technology Co., Ltd.’s catalytic series of products, the Institute introduced the pioneering enzymatic catalysis technology in China, which makes the use of organic materials for API production greatly reduced, minimizing the safety hazards in production, as well as the environmental pollution caused by the project. In the construction project of Hunan Zhengqing Pharmaceutical Group Co., Ltd. for the Sinomenine Hydrochloride APIs production line, the Institute applied a modern Chinese medicine extraction and concentration facility, as well as purification, extraction, separation and crystallization processes that rank among the most advanced categories in China, significantly improving the purity and precision of the drugs. In the R&D and industrialization development project for modern Chinese medicine and dietary supplement products in the Alpha (Changbai Mountain) Bio-technology Park, the Institute, in cooperation with College of Pharmaceutical Sciences, Zhejiang University, realized the fully automatic modern production in aspect of pre-treatment and extraction of Chinese medicine, and set up a modern pilot platform. In the expanded production base construction project of Hunan WZT Pharmaceutical Co., Ltd., the Institute applied advanced fully automatic washing, drying, filling and sealing technology in the freeze-dried powder injection workshop and the small-volume injection workshop, as well as the automatic feeding technology in the freeze-dried powder injection workshop, which greatly reduces the contamination risk of sterile drugs and also demonstrates our leading technology in the biologicals industry.

       （3）Oil and gas transmission and distribution field
       In 2022, relying on the Institute, Hunan Energy Administration set up the Hunan Oil & Gas Development Research Institute, which is positioned as the oil & gas consulting agency and decision-making think tank of Hunan Energy Administration to serve the oil & gas development strategy of Hunan Province in an all-round way. As a professional design institute of oil & gas storage and transportation engineering, the Institute undertakes the research and preparation of provincial oil & gas development plans, actively participates in the construction of the “Hunan Natural Gas Development” project, and shoulders the mission of “Dedicated to Clean Energy for a Beautiful Hunan”. We always strive to promote the sound development of the oil & gas storage and transportation engineering construction industry. We have completed a number of typical projects, as follows: Development Plan for Medium- and Long-term Natural Gas Consumption in Hunan Province, the 13^th Five-Year Plan of Hunan Province for Natural Gas Development, the 14^th Five-Year Plan of Hunan Province for Oil & Natural Gas Development, etc.; Changsha-Changde natural gas long-distance pipeline project, Xiangtan-Hengyang natural gas long-distance pipeline project, Yongzhou oil pipeline relocation project in Yongzhou, etc.; key projects of the New Three-year Action Plan for “Hunan Natural Gas Development”: Shaoyang-Dongkou-Xinning gas pipeline project, Shaodong-Shuangfeng gas pipeline project, etc.
      Our EPC projects under construction include the EPC project for the design and construction of the first bid section of the Yongzhou-Shaoyang County gas pipeline project.

       （4）Construction, municipal and environmental protection fields
       The Institute possesses distinctive technical features in the chemical, petrochemical, pharmaceutical and construction fields. The Institute has unique technology advantages in building demonstration front areas of plants for industrial enterprises. We not only take into account the unique process, production and storage requirements of industrial enterprises, but also fully present the comprehensive functions of the front area of a plant regarding office, R&D, and laboratory testing, overturning the conventional perception of industrial construction. At the same time, with the outstanding strength in civil buildings, we have undertaken a large number of large public buildings, including theaters, exhibition halls, schools, hospitals, real estate, hotels, agriculture-tourism, offices, etc. Our typical projects include: Hutian Societal Culture Exhibition and Performance Center in Huaihua, National Stem Cell Research Center, Economics and Management Training Center of Changsha University, Taojiang County People’s Hospital, Jiahe County People’s Hospital, Logistic Support Base of Changsha Huanghua International Airport, Longquan Mingdi Residence Community, Guizhou Bangtuo Office Building Project, Dongfang Hotel, etc.
       With unique technology advantages in the municipal and environmental protection fields, we have integrated the conventional environmental treatment process with the chemical wastewater and tail gas treatment processes, achieving high-efficiency and low-cost results. Especially in the wastewater treatment process for liquor enterprises, we have established great advantages. Awarded the proprietary technology titled “A New Process of Wastewater Treatment for Sauce-flavored Liquor Brewing” by China Petroleum & Chemical Engineering Survey and Design Association, we have been a leader in the industry. Our EPC projects under construction include the wastewater treatment project of Datang Liquor Co., Ltd. in Guizhou Province. Our typical projects include: Pipe network project in Baoshan Circular Economy Industry Cluster District of Hebi City, No. 2 Water Plant project in Hengshan County, urban sewage plant projects in Chengbu County, Longhui County, and Xinning County, sanitary landfill construction project for domestic waste in Shaoyang, urban kitchen waste treatment project in Jining, Jiangxi Ruifu Lithium’s project for the production of 300,000 t/a sulfuric acid through comprehensive utilization of tailings and slags, pollution-free arsenic-alkali residue disposal project in the tin mine area of Lengshuijiang, etc.
       In the field of municipal gas engineering, the Institute is the first Class-A municipal gas design institute and municipal gas engineering construction drawing review agency in Hunan Province. We have unique technological advantages in municipal gas pipe networks, city gate stations, gas holder stations, pressure regulating stations, gas filling stations, and crossing engineering. Our typical projects include: the gas engineering project in Hengyang, natural gas utilization projects in Yiyang, Zhangjiajie, Miluo, and Xiangtan County, the city gate station for the gas engineering project in Shaoyang, etc.