Biogas production device and method

Abstract

The invention discloses a biogas production device and method. The biogas production device comprises a biogas fermentation device, a desulfurization device, a decarbonation device and a dehydration device, wherein the biogas fermentation device is communicated with a primary inlet separator, a primary compressor is communicated with the primary inlet separator, a secondary compressor is communicated with the primary compressor, a secondary inlet separator is communicated with the secondary compressor, and the desulfurization device is communicated with the secondary inlet separator; the desulfurization device, the dehydration device and the decarbonation device are sequentially communicated; the biogas fermentation device is composed of a preprocessing heating tank, a primary anaerobic fermentation gas production tank and a secondary anaerobic fermentation gas production tank to enhance activity of anaerobic bacteria and uniformly mix the raw materials and the anaerobic bacteria, thereby increasing the biogas yield; the desulfurization device performs dry and wet combined desulfurization, and desulfurizer is connected with a desulfurization tower through a storage bucket and is convenient to replace; two-stage dehydration modules are applied to achieve more thorough dehydration.

Description

technical field [0001] The invention belongs to the technical field of renewable energy, in particular to a biogas preparation device and a method thereof. Background technique [0002] Energy and environmental problems have become two prominent problems in today's society. In the case of decreasing non-renewable energy and increasing costs, large and medium-sized biogas projects are one of the important means to solve energy and environmental problems. [0003] The fermentation raw materials used in most biogas projects contain more insoluble solids. For the anaerobic digestion technology of solid-containing materials, there are still problems such as uneven mixing of materials and anaerobic bacteria, high energy consumption, and more bacteria and sludge in the effluent, which seriously restrict this type of anaerobic reactor. Second, after the reaction of waste water in the biogas tank, a large amount of sludge is left, which is inconvenient to clean up, and some biogas m...

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Problems solved by technology

[0008] The invention proposes a biogas preparation equipment and its method, which solves the problems of uneven mixing of materials and anaerobic bacteria, high energy consumption, and more bacteria sludge in the effluent in the biogas fermentation process in the prior art; desulfurizer replacement Inconvenient, and incomplete desulfurization; and the defects of low decarburization rate and dehydration rate

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