Anaerobic reaction will produce biogas, which usually contains a certain amount of hydrogen sulfide. The content of hydrogen sulfide in biogas is different in different industrial wastewater. If the content of hydrogen sulfide is too high, the hydrogen sulfide in the biogas must be removed before entering the boiler to avoid corrosion of the pipeline and boiler. Do you know enough about these characteristics of biogas desulfurization?
Biogas desulfurization is a method to remove highly corrosive and highly toxic hydrogen sulfide gas from biogas by using biological strains. The process has the advantages of high automation, simple process and low operation cost. The biogas generated by anaerobic fermentation enters the washing tower and absorbs reaction with the basic circulation sprayer to remove hydrogen sulfide from the biogas. The hydrogen sulfide absorbed from the rich solution is returned to the bioreactor. After biotransformation, the hydrogen sulfide is converted into solid element sulfur, and the solution is regenerated into alkaline absorption solution, which can be used to wash the biogas, and then the recycling and recycling of the absorbent are completed. The separation of sulfur solids is completed by sulfur precipitator.
Biogas desulfurization combines physicochemical absorption of hydrogen sulfide under weak alkaline conditions with biological regeneration of alkaline solution in air. The biogas without hydrogen sulfide escapes from the top of the scrubber, and the solution containing hydrogen sulfide flows into the bioreactor. Under the condition of limiting oxygen supply, it is oxidized to elemental sulfur and alkali. A few waste water and by-product sulfur are free of sulfide and can be discharged directly.
1. Automatic unattended, stable and reliable operation process
2. The sulfur content in biogas can be removed deeply.
3. There is no great fluctuation in gas flow.
4. Biogas is not diluted by air.
5. There is no risk of clogging and scaling, and no long maintenance.
6. Normal temperature and normal pressure operation.
The above is about the characteristics of biogas desulfurization, for more information, welcome to click http://www.hneee.net Official website.