Coke oven gas contains impurities such as tar, naphthalene, benzene, inorganic sulfur and organic sulfur. In order to make full use of the coke oven gas, purify the coke oven gas, reduce the impurity content in the coke oven gas, the combustion emission can meet the environmental protection requirements, and can be used as raw materials for chemical production. The technology is mature and widely used in power plants and coal chemical industry.

Biogas is an environmentally friendly, clean and cheap combustible gas produced by microorganisms in anaerobic environment, such as livestock manure, agricultural waste, industrial organic waste, domestic sewage and municipal domestic waste, and its main components are methane, carbon dioxide and hydrogen sulfide. Biogas is mainly purified and used for urban gas, vehicle fuel, hydrogen production, etc.

Purify CO with PSA technology and obtain product CO from desorption phase; The adsorbent for purifying CO is developed by our company. It has large adsorption capacity, high selectivity, simple process, high purity and high yield of CO.

CO₂ is the main by-product produced in the industrial production process and has high commercial value. The concentration of carbon dioxide in the wet decarbonization gas can reach more than 99% (dry gas), and the content of other impurities are: water, hydrogen, etc. After purification, it can reach food-grade liquid CO₂. Food grade CO₂ can be recovered from CO₂ rich gases such as natural gas reforming gas, methanol cracking gas, lime kiln gas, flue gas, synthetic ammonia decarbonization tail gas, etc.

Wet desulfurization and decarbonization are common gas purification technologies. It is applied in natural gas reforming gas purification, coal gasification combined gas purification, LNG production process with coke oven gas, SNG process. MDEA process is used for H2S and CO2 removal. After purification of syngas: H2S<10mg/Nm ³,  CO2<50ppm (LNG process).