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Shanghai Huaxi Chemical Industry Science & Technology Co., Ltd. is a high-tech enterprise of engineering and technology development, engineering design, engineering contracting, technical services for the integration, which has abundant human resources and capital strength, gathering numerous experts and high-tech personnel from domestic famous design institutes. The company provides services for the petrochemical refinery, chemical, metallurgy, steel, coal chemical industry and other industries, and also provides all kinds of gases’ production technologies and oil hydrogenation technologies and plants, all kinds of catalysts and adsorbents, special valves, etc.

The company is a high-tech enterprise in shanghai with import and export enterprise qualification and obtains ISO9001 quality system certification, ISO14001 environmental management system certification and GB/T28001 occupational health and safety management system certification. The company is also a supply network member of Sinopec material resources market and China Petroleum Corporation. Huaxi already has reached a long-term and stable cooperative relation with large domestic design institutes and famous domestic and foreign companies, and also has been the only cooperation supplier for AP, Praxair, and Air Liquid in China.

Company has a design institute, which is Anhui Huadong Chemical and Medical Engineering Co., Ltd.: It has a professional class design qualification[certificate number A34008179] for chemical, petrochemical, pharmaceutical industry (refinery engineering, chemical engineering, petroleum and chemical products storage and transportation, proprietary Chinese medicine); also has design license of special equipment of People’s Republic of China (pressure pipelines GB, GC1, GC2 and pressure vessels D1, D2, A1, A2). [The pressure piping certificate number is: TS1810519-2015; the pressure vessel certificate number is: TS1210591-2015].

Anhui Huadong Chemical And Medical Engineering Co., Ltd. (design institute) is an executive director unit of Chinese chemical industry association of mechanical power and fertilizer industry association in Anhui Province, also is the technology and innovation demonstration enterprise of Chinese chemical industry, and has the GB/T28001-2001 occupational health and safety management system, ISO9001-2008 quality management system and ISO14001-2004 environmental management system management certification.

The company has about 300 staffs in total and is equipped with complete professional departments: process department, equipment department, machinery department, automatic control department, electrical department, piping department, construction department and environmental protection department, etc.

Shanghai Huaxi has more than 200 employees and annual output value four hundred million Yuan. The company has the technologies of Pressure Swing Adsorption (PSA) producing H₂, CO, CO₂, O₂, N₂, and concentration technologies of coal bed gas and methane gas, producing natural gas and LNG technologies from coke oven gas , isothermal methanation technology, producing hydrogen technologies from natural gas, refinery gas and methanol, technologies of treating gasoline and diesel, technologies of diesel hydro-upgrading, wax oil hydrogenation technology, coal tar hydrogenation technology, catalytic gasoline selective hydrogenation, gas fractionation technology, MTBE technology, methanol synthesis technology.

The company has rich experience and performance of technology development, engineering design and EPC. Plants that the company has put into operation or under construction include hundreds of sets of Pressure Swing Adsorption (PSA) for producing hydrogen , more than seventy sets of hydrogen plants using natural gas or refinery gas, more than 20 sets of hydrogen plants through methanol cracking technology, more than ten sets of hydrogen plants by coal gasification technology, nearly more than 50 sets of various oil hydrogenation plants, as well as dozens of new development of other gas technologies which include gas concentration technology of coal bed gas, natural gas and LNG production technologies from coke oven gas and so on.

Technologies and products are popularized and applied in more than two hundred of enterprises of all provinces except Tibet Province. Technologies for producing H₂ through steam reforming of natural gas and PSA has been exported to Taiwan, Iran, India and other overseas regions.

The concentration technology of coal bed gas and methane gas that is developed by Huaxi have passed the national identification in 2010, and also has been named the world's advanced technology. There are nearly ten sets of plants which are in operation and in design at present.

The technology of producing LNG by coke oven gas adopting unique Huaxi pretreament technology and isothermal methanation technology, which was developed by Huaxi company and is domestic initiative. Domestic first set of coke oven gas producing LNG plant has been put into operation at Qujing in Yunan province in 2012.

The domestic initiative methanation technology provided by Huaxi has been industrialized, has the advantage of low energy consumption, short process, low investment (about 20-30% of multi-segment adiabatic methanation technology) compared with multi-segment adiabatic methanation technology.