期刊
ENGINEERING IN LIFE SCIENCES
卷 21, 期 10, 页码 693-708出版社
WILEY
DOI: 10.1002/elsc.202100006
关键词
absorption enhancement; bioreactor modification; hydrogen sulfide; metabolic engineering; microbial capture; sulfur-oxidizing bacteria
资金
- National Science Foundation of China [21878307, 31872633, 31800030]
- National Key Research & Development Program of China [2020YFA0906800]
Biological desulfurization offers environmental advantages compared to conventional physicochemical methods, but still faces limitations such as low biomass of sulfur-oxidizing bacteria and process solution acidification, which require enhancement through different research perspectives.
Biological desulfurization offers several remarkably environmental advantages of operation at ambient temperature and atmospheric pressure, no demand of toxic chemicals as well as the formation of biologically re-usable sulfur (S-0), which has attracted increasing attention compared to conventionally physicochemical approaches in removing hydrogen sulfide from sour gas. However, the low biomass of SOB, the acidification of process solution, the recovery of SOB, and the selectivity of bio-S-0 limit its industrial application. Therefore, more efforts should be made in the improvement of the BDS process for its industrial application via different research perspectives. This review summarized the recent research advances in the microbial capture of hydrogen sulfide from sour gas based on strain modification, absorption enhancement, and bioreactor modification. Several efficient solutions to limitations for the BDS process were proposed, which paved the way for the future development of BDS industrialization.
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