The selection of desulfurization technology route in biogas purification and refining natural gas should focus on hydrogen sulfide concentration, treatment scale, concentration fluctuation range and treatment cost. When the concentration of hydrogen sulfide is high and the treatment scale is large, alkali washing biological regeneration desulfurization technology and alkali washing catalytic regeneration desulfurization technology are easy to be used. Compared with the latter, the latter is lower in terms of operation cost, but in terms of resisting the impact of concentration change, the latter is better than the former, and in terms of investment, the latter is also better than the former.
In recent years, a few enterprises and scientific research institutes in China have cooperated in the research. According to the characteristics of biogas projects and hydrogen sulfide in biogas, a large number of effective improvements and improvements have been made in the alkali washing catalytic regeneration desulfurization technology, especially in the removal of high concentration hydrogen sulfide such as blocking tower, poor regeneration effect and difficulty in extracting elemental sulfur. Difficulties.
Dry desulfurization, PSA and membrane desulfurization are mostly suitable for refined desulfurization after initial desulfurization of hydrogen sulfide, or for biogas refining projects with small gas volume and low concentration of hydrogen sulfide. Although biological desulfurization has low operation cost, it is not suitable to be applied in the field of biogas refining natural gas because of the introduction of a large number of impurity gases such as nitrogen and oxygen.
The wonderful content of this article is provided by the biogas purification edition. There are many wonderful contents on this website. You can click on more content to enter: http://www.477115.com. Our customer service will answer your patiently questions. Welcome to consult!
企業二維碼
2019-09-02
魯公網安備37011202000764號號