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   CHENGDU HUAXI CHEMICAL INDUSTRY SCIENCE TECHNOLOGY CO., LTD. is a joint-stock enterprise initiated and established by Chengdu Huaxi Chemical Research Institute (established in 1987). It integrates all technologies, main assets and personnel of Chengdu Huaxi Chemical Technology Group, with a registered capital of 24 million yuan and fixed assets of more than 90 million yuan. It is a high-tech enterprise (national unified number 07-00102) reviewed and recognized by the science and Technology Commission.

   The company is one of the first batch of scientific research institutions to obtain the right of direct foreign trade.

The company has obtained the international ISO9001 quality system certification.

The company is a member of Sinopec material resources market.

The company is a member of the first level supply network unit of CNPC.

Our company provides users with the following technologies and devices:

▲ PSA separation and purification technology and device for hydrogen separation and purification from various hydrogen containing gases such as coke oven gas, conversion gas, synthetic vent gas, methanol tail gas, gas, catalytic dry gas, refined gas, membrane separation gas, reforming hydrogen, etc

Pressure swing adsorption separation and purification co technology and device, used to separate and purify CO from various Co containing gases such as water gas, semi water gas, converter gas, blast furnace gas, yellow phosphorus tail gas, copper washing gas, etc

▲ pressure swing adsorption, complex amine separation and purification technology and device for CO2 from various CO2 containing gases

▲ PSA air separation and purification of oxygen and nitrogen

Pressure swing adsorption air separation and recovery of propylene, ethylene, vinyl chloride and cyclohexanone

▲ conversion of light hydrocarbon (such as natural gas, LNG, LPG, refinery dry gas, naphtha, etc.) to hydrogen by steam

▲ technology and device for hydrogen production from methanol cracking

▲ technology and device for hydrogen production from coal gasification

The hydrofining and upgrading technology of gasoline, diesel, wax oil and coal tar

Gasification of coke oven gas to LNG

Temperature swing adsorption alcohol drying and natural gas drying

▲ high performance program-controlled valve and hydraulic drive system, with action life more than 1 million times

▲ CO2 recovery unit from lime kiln gas and flue gas

▲ various wet and dry desulfurization technologies and devices

▲ waste acid recycling technology and device

Methanol and ethylene recovery technology

▲ flue gas desulfurization and denitration technology

▲ desulfurizer, adsorbent and catalyst

   Chengdu Huaxi Chemical Technology Co., Ltd. is mainly engaged in the production and purification of various industrial gases, SO2 removal and recovery of flue gas, inorganic and organic sulfur removal by dry method and wet method, hydrochloric acid regeneration, hydrogen production by dry gas conversion, coal tar hydrogenation technology and other engineering technology development and engineering contracting, as well as fine chemical products, special valves, mechatronics, industrial process control system, denitrification Research and production of sulfur agent, adsorbent and catalyst.

   Over the past 20 years since its establishment, the company has developed 12 leading technologies in the world, applied for more than 10 Chinese and foreign patents, and promoted the application of technology and technical products in more than 200 enterprises in more than 20 provinces and cities in China. Nearly 200 sets of devices have been built and put into operation, of which PSA gas separation devices have been exported to foreign countries. With an annual output value of more than 800 million yuan, it has been awarded "electronic technology transformation traditional industry award", "technology market Golden Bridge Award" and "spark technology demonstration enterprise" by the State Planning Commission, the science and Technology Commission, the Ministry of machinery and the Ministry of chemical industry. It has been awarded the title of excellent science and technology enterprise by the provinces and cities, and has been rated as AAA credit enterprise for many consecutive years.

   After more than 20 years of development, the whole Huaxi Chemical Technology Group has developed into a fixed asset of more than 200 million yuan, with an annual output value of more than 800-1 billion yuan. Three engineering companies (Chengdu Huaxi Chemical Technology Co., Ltd., Chengdu Huaxi Industrial Gas Co., Ltd., Changsha Huaxi Chemical Technology Co., Ltd.), three manufacturing enterprises (Chengdu Huake Valve Manufacturing Co., Ltd., Chengdu Huaxi Gas Chemical Co., Ltd., Chengdu Yalian Ruixing catalyst Co., Ltd.), two gas supply companies (Guigang oxygen gas supply company) Tonggang oxygen gas supply Co., Ltd.), a high-tech group company with more than 1000 employees, with 70% of engineering design and technical personnel, 30% of which are middle and senior technical personnel, and 90% of them have bachelor degree or above.

   In the field of development and application of PSA technology and related supporting technologies, Chengdu Huaxi Chemical Technology Co., Ltd. has successfully solved the technical problems related to the large-scale PSA industrial device, and has successively obtained four national patents and one American patent. PSA Hydrogen production technology has passed the appraisal of Sinopec and PSA oxygen production technology has passed the national stone Identification of bureau of petroleum and chemical industry and bureau of metallurgical industry.

   Over the past 20 years, our company has designed and built nearly 1000 sets of large-scale PSA industrial devices for petrochemical, metallurgical and chemical industries, including:

   The largest PSA Hydrogen production unit in China (PetroChina Guangdong petrochemical: 2x180000nm3 / h)

   China's largest reforming gas PSA hydrogen purification unit (Tenglong aromatics: 200000nm3 / h)

   China's first large-scale export catalytic dry gas VPSA hydrogen purification unit (11000nm3 / h, Khartoum Refinery, Sudan)

   The largest hydrogen purification unit of coke oven gas in China (Shaanxi Shenmu chemical industry: 26000nm3 / h (product hydrogen))

   The largest PSA oxygen plant in China (Yanggu Xiangguang Copper Co., Ltd.: 35000nm3 / h-o2)

   The first PSA styrene tail gas hydrogen extraction unit in China (Dalian Petrochemical: 20000Nm3 / h)

   The first PSA decarbonization unit in China (Shanxi Hejin chemical fertilizer plant)

China's first export PSA decarbonization unit (Uzbekistan 10000nm3 / h)

   A number of large PSA units designed in China by Linde company of Germany and UOP company of the United States have been modified. In PSA hydrogen purification industry, we have the most experience in large-scale device design, with more than 70% market share in the petrochemical industry. Our technical indicators are at the international leading level, and our design and service have been highly praised by users.