Biogas desulfurization equipment is a device used to remove sulfides such as hydrogen sulfide (H2S) from biogas, in order to reduce the corrosive and harmful effects of biogas on the environment and equipment. The following are the general working principles and main components of biogas desulfurization equipment:
Biogas desulfurization equipment usually adopts the principle of physical absorption or chemical absorption for desulfurization treatment. Physical absorption is the use of solvents to absorb hydrogen sulfide molecules and separate them from biogas; Chemical absorption is the process of reacting hydrogen sulfide with an absorbent to convert it into other compounds or precipitates.
Absorption tower: The absorption tower is the core part of biogas desulfurization equipment, used to come into contact with hydrogen sulfide in biogas and perform absorption or reaction. The absorption tower usually adopts a packing or plate structure to increase the contact area and improve the absorption effect.
Solvent supply system: used to supply absorption solvents, which can be alkaline solutions (such as sodium bicarbonate solution) or oxidizing agents (such as hydrogen peroxide). The solvent is recycled through an absorption tower to achieve continuous desulfurization.
Solvent regeneration system: used to remove or convert sulfide substances in absorbents, enabling them to have absorption capacity again. The solvent regeneration system usually includes regeneration devices, filtration devices, neutralization devices, etc.
Waste gas treatment system: Process the flue gas after desulfurization to ensure that the emissions meet environmental requirements. The exhaust gas treatment system can be treated by methods such as absorption, oxidation, and catalytic conversion.
工作流程：
Workflow:
沼氣脫硫設備的工作流程主要包括以下幾個步驟：
The workflow of biogas desulfurization equipment mainly includes the following steps:
沼氣進入吸收塔，與吸收溶劑接觸，硫化氫被吸收或反應。
The biogas enters the absorption tower and comes into contact with the absorption solvent, where hydrogen sulfide is absorbed or reacted.
脫硫后的沼氣通過吸收塔頂部的排氣管道排出。
The desulfurized biogas is discharged through the exhaust pipeline at the top of the absorption tower.
吸收溶劑經過吸收塔下部的循環泵送系統，返回吸收塔繼續循環使用。
The absorption solvent passes through the circulating pumping system at the bottom of the absorption tower and returns to the absorption tower for further recycling.
飽和的吸收溶劑進入溶劑再生系統進行再生處理，去除或轉化硫化物物質。
The saturated absorption solvent enters the solvent regeneration system for regeneration treatment, removing or converting sulfide substances.
處理后的溶劑重新供應到吸收塔，循環使用
The processed solvent is resupplied to the absorption tower for recycling
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2023-05-24
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