Biogas is a very good clean energy, which can be obtained by fermentation of a variety of biomass. China has huge reserves of biomass resources, including agricultural, industrial and municipal solid waste, and by-products of other related industries. There are many ways to use biogas, such as direct use of combustion heating, cogeneration or purification as vehicle gas, household heating, chemical raw materials and other natural gas. Biogas prepared through purification can completely replace petrochemical natural gas. According to the existing technical level and economic feasibility, China can convert 120billion cubic meters of equivalent biological natural gas, which can significantly reduce China's dependence on Petrochemical Natural gas.
Biogas purification and purification of biogas is a technology for biogas purification and purification to prepare high-quality biogas and greatly improve the utilization quality of methane. At present, the main processes of biogas decarbonization include organic amine absorption method, pressure washing method, membrane separation method, pressure swing adsorption method, physical absorption method, cryogenic separation method, etc. The biogas pressurized water washing technology developed in this project integrates the reasonable and effective utilization of flash technology in the process of water washing and decarbonization, the development of core components in the absorption tower and desorption tower, the synchronous recovery of carbon dioxide technology, the design of energy integration system and automatic control system of biogas engineering, and other aspects for optimization design and development. The biogas pressurized water washing technology developed in this project, combined with the design concept of skid mounted equipment, can be applied and promoted in biogas projects of various treatment scales.
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