Marsh gas purification system and marsh gas purification method
A purification system and biogas technology, applied in gas fuel, petroleum industry, fuel and other directions, can solve the problems of low methane content and limit the use of biogas, and achieve the effects of increasing methane content, reducing costs, and expanding the scope of use
Active Publication Date: 2015-04-08
王仕华
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However, traditional biogas sources, such as biogas digesters, have low methane content in biogas, which limits the use of biogas
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[0035] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.
[0036] It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to th...
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The invention provides a marsh gas purification system. The system is characterized by comprising a primary inlet separator which is used for removing granular solid substances and moisture in marsh gas generated by a marsh gas source so as to form first purified marsh gas, a primary compressor which is communicated with the primary inlet separator and used for compressing the first purified marsh gas to form first compressed marsh gas, a secondary compressor which is communicated with the primary compressor and used for compressing the first compressed marsh gas to form second compressed marsh gas, a secondary inlet separator which is communicated with the secondary compressor and used for removing granular solid substances and moisture in the second compressed marsh gas to form second purified marsh gas, a washing tower which is communicated with the secondary inlet separator and used for removing impure gases in the second purified marsh gas by using amine liquid to obtain purified marsh gas and amine liquid containing absorbed impure gases, and amine liquid circulating equipment which is communicated with the washing tower and used for removing impure gases in the amine liquid by which impure gases are adsorbed to obtain amine liquid recycling liquid. The marsh gas purification system can be used for improving the content of marsh gas in marsh gas.
Description
technical field [0001] The invention relates to the field of biogas energy utilization, in particular to a biogas purification system and a biogas purification method. Background technique [0002] Biogas is a combustible gas produced by microbial fermentation of organic matter under anaerobic conditions, and its main component is methane. Generally, biogas is composed of 50%~80% methane (CH 4 ), 20%~40% carbon dioxide (CO 2 ), 0%~5% nitrogen (N 2 ), less than 1% hydrogen (H 2 ), less than 0.4% oxygen (O 2 ) and 0.1%~3% hydrogen sulfide (H 2 S) and other gases. [0003] Biogas has high calorific value and less pollution, so it is a clean energy. my country began to popularize and apply it in the 1920s, and has achieved gratifying results at present. However, traditional biogas sources, such as biogas digesters, have low methane content in biogas, which limits the use of biogas. Contents of the invention [0004] Based on this, it is necessary to provide a biogas p...
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IPC IPC(8): C10L3/10
Inventor 吕小鸿肖安平王仕华
Owner 王仕华