In recent years, with the development of China's society, the continuous improvement of domestic economic level, people's living standards have gradually improved, the use of biogas has become more and more common. Although biogas is good, it contains poisonous and harmful gas hydrogen sulfide. Because hydrogen sulfide is toxic and corrosive, it has great harm to people's health. Therefore, how to effectively and economically deal with the poisonous and harmful gas hydrogen sulfide in biogas is an important factor to measure the success of a biogas utilization project. Wuxi nuopal Biotechnology Co., Ltd. is a high-tech enterprise mainly engaged in biogas desulfurization project. Nowadays, with the development of science and technology and the replacement of technology, biogas desulfurization technology has developed to the biogas desulfurization technology represented by biological desulfurization. Among them, biological desulfurization is generally divided into integrated biological desulfurization and separated biological desulfurization.
In the integrated biological desulfurization and separate biological desulfurization, the integrated biological desulfurization refers to that a certain amount of air is introduced into the biogas containing hydrogen sulfide, and the mixed gas will be removed by biological filter and biotrickling filter, and the by-product of desulfurization is generally sulfuric acid or sulfate. Because the operation cost of integrated biological desulfurization technology is very low, so now, it is widely used in biogas desulfurization power generation project, and has broad development prospects.
In the biogas scrubber, the gas containing hydrogen sulfide enters into the biological scrubber first, and then enters the biological scrubbing reactor. The sulfide in the reactor is converted into elemental sulfur, and the alkali liquor is regenerated, which can be reused. With the discovery of halophilic desulfurizing bacteria, the separation desulfurization process has been greatly developed. And with the progress of science and technology, it has solved the problem that sulfur filler is easy to block in integrated biological desulfurization. In the process of purification of CNG from biogas and the treatment process of high concentration hydrogen sulfide, the separation desulfurization process has the advantage. The above is the introduction of biological desulfurization.