Biogas is a kind of renewable energy, which is produced during the anaerobic fermentation of livestock manure, kitchen waste, sanitation manure and other organic wastes. It is mainly composed of methane and carbon dioxide. After dehydration, dust removal, desulfurization and decarbonization, the biogas produced in the process of anaerobic fermentation can be used for biogas power generation, cogeneration or purification. The purified biogas can be used for automobile fuel, industrial gas or urban gas, so as to reduce the use of fossil energy and protect the environment.
The biogas produced by anaerobic fermentation is used to drive the generator set to generate electric energy. On the premise of meeting the power consumption of the whole plant, it can also transmit excess electric energy to the urban power grid. The waste heat at different temperatures in the process of biogas power generation is recycled step by step for the use of biomass comprehensive treatment process, comprehensive utilization of resources and Realization of cogeneration.
(1) Realize cascade utilization of waste heat of different quality. (2) Improve energy taste and energy conversion efficiency, with convenient transportation and high return on capital. (3) Realize energy recycling, solve all or part of the energy consumption of heating and thermal insulation of biogas system, reduce the energy consumption of the whole project, and improve the biogas output and operation stability of the project. (4) To improve the comprehensive benefits of biogas project, its economic value is equivalent to three times of biogas direct combustion.
After the pretreatment of biogas produced by oxygen fermentation, when the components of biogas gas pass through the polymer membrane, the CO2 in biogas can be better separated according to their solubility and diffusion penetration rate in the membrane, so that the content of methane in biogas can be increased to 95% - 97%. After purification, biogas can be used for vehicle gas, industrial gas or urban gas.
技术原理：利用气体各组分在膜内的溶解度和扩散渗透速率的不同而将其进行分离。
Technical principle: the gas components are separated according to the different solubility and diffusion penetration rate in the membrane.
(1) Pure physical process, no secondary pollution. (2) Skid mounted structure, short construction period. (3) High degree of automation and reliable operation. (4) Modular design, suitable for phased construction. (5) Low energy consumption and low maintenance cost. (6) Adjustable flow and wide application range. (7) Long service life, easy to use, 98% of the year can work. (8) The product gas is stable, the recovery rate of methane is ≥ 95%, and the purity of product gas is ≥ 95%.
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2022-05-20
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