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Effects of aqueous media on microbial removal of sulfur from dibenzothiophene in the presence of hydrocarbons

机译:烃类存在下水性介质对二苯并噻吩中微生物脱硫的影响

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摘要

Effects of the aqueous components, pH, concentration of NaCl, and volume ratios of oil-to-water on the desulfurization activity of gram-negative desulfurizing bacterium, Pseudomonas delafieldii R-8, were investigated. R-8 showed high desulfurization activity even with a concentration of NaCl up to 60 g · L~(-1) or high content of dodecane over 83%. The addition of NADH could increase the desulfurization activity of the whole cells. The desulfurization of DBT could be proceeded in the presence of hydrocarbons with the carbon length ranging from 6 to 16. Among them, the largest specific desulfurization activity was shown in dodecane, the value of which was 1.96 mg · g~(-1) · h~(-1) similar to that of R. erythropolis IGTS8.
机译:研究了水成分,pH,NaCl浓度和油水体积比对革兰氏阴性脱硫细菌Pseudomonas delafieldii R-8脱硫活性的影响。即使在NaCl浓度高达60 g·L〜(-1)或十二烷含量超过83%的情况下,R-8仍显示出高脱硫活性。加入NADH可以增加整个细胞的脱硫活性。 DBT的脱硫可以在碳长度为6到16的烃类存在下进行。其中,十二烷显示出最大的比脱硫活性,其值为1.96 mg·g〜(-1)· h〜(-1)与红球菌IGTS8相似。

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