Multifunctional methane purifier

Abstract

The application discloses a multifunctional marsh gas purifier, which is to add a sodium hydroxide solution accounting for 50 to 70 percent of the volume of a water gatherer into a marsh gas water gatherer, wherein an intake pipe of the water gatherer is extended to extend into the sodium hydroxide solution. Because an aqueous solution of hydrogen sulfide is a weak acid and has chemical reaction with sodium hydroxide to generate sodium sulfide and water; carbon dioxide has chemical reaction with the sodium hydroxide to generate sodium carbonate and water; besides, water vapor in the marsh gas becomes liquid water in the aqueous solution and plays a role of dehydration of the water gatherer. The multifunctional marsh gas purifier improves the prior water gatherer so as to integrate the functions of desulfurization, dehydration and decarbonation, and has the characteristics of less investment, simple installation, safe use and operation, convenient management and the like.

Description

technical field [0001] The present application relates to a biogas utilization device, especially a biogas purification device. Background technique [0002] The existing biogas purifier includes a plastic shell with solid iron oxide as a desulfurization purifier, and a biogas water collector, so that only hydrogen sulfide and water can be removed, and the main components in the biogas are not only combustible alkanes Methane accounts for about 50-70% and a small amount of hydrogen sulfide, hydrogen, carbon monoxide, nitrogen, and a large amount of carbon dioxide, accounting for about 30-40%, but it has not been removed. Moreover, the desulfurizer iron oxide is expensive and needs to be replaced after a period of use. Contents of the invention [0003] In order to overcome the deficiencies of existing biogas purifiers, this application provides an integrated multifunctional biogas purifier that can remove not only hydrogen sulfide, but also carbon dioxide and water. [0...

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Problems solved by technology

[0002] The existing biogas purifier includes a plastic shell with solid iron oxide as a desulfurization purifier, and a biogas water collector, so that only hydrogen sulfide and water can be removed, and the main components in the biogas are not only combustible alkanes Methane accounts for about 50-70% and a small amount of hydrogen sulfide, hydrogen, carbon monoxide, nitrogen, and a large amount of carbon dioxide, accounting for about 30-40%, but it has not been removed

Moreover, the desulfurizer iron oxide is expensive and needs to be replaced after a period of use

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