Chengdu Zhongke Energy and Environmental Protection Co., Ltd. (referred to as “CSEE”) is a national high-tech enterprise with the development orientation of “a provider of overall solutions for green bio-natural gas with biogas purification and upgrading technology and material research and development as the core”. It is affiliated to Beijing China Science Runyu Environmental Protection Technology Co., Ltd.

CSEE has developed desulfurization and decarbonization technologies for the preparation of bio-natural gas, obtained a number of patents in biogas purification and upgrading technologies, and formed a series of domestic leading complete sets of processes for the resourceful and high-value utilization of bio-natural gas. These technologies have been widely applied in the fields of landfill gas, anaerobic biogas from kitchen waste, anaerobic biogas from breeding waste, anaerobic biogas from agricultural waste, and anaerobic biogas from distillery wastewater for the preparation of bio-natural gas.

CSEE has developed PNCR flue gas dry catalytic denitration technology, which is suitable for denitration of flue gas from incineration of domestic waste, hazardous waste, medical waste, sludge, agricultural and forestry biomass, etc. It has the advantages of high denitration efficiency and controllable precision, and can help realize ultra-low NOx emission in flue gas treatment.