The soil-isolated strain XP was identified as Rhodococcus erythropolis. R. erythropolis XP could efficiently desulfurize benzonaphthothiophene, a complicated model sulfur compound that exists in crude oil. The desulfurization product of benzonaphthothiophene was identified as α-hydroxy-β-phenyl-naphthalene. Resting cells could desulfurize diesel oil (total organic sulfur, 259 ppm) after hydrodesulfurization. The sulfur content of diesel oil was reduced by 94.5% by using the resting cell biocatalyst for 24 h at 30°C. Biodesulfurization of crude oils was also investigated. After 72 h of treatment at 30°C, 62.3% of the total sulfur content in Fushun crude oil (initial total sulfur content, 3,210 ppm) and 47.2% of that in Sudanese crude oil (initial total sulfur, 1,237 ppm) were removed. Gas chromatography with pulsed-flame photometric detector analysis was used to evaluate the effect of R. erythropolis XP treatment on the sulfur content in Fushun crude oil, and it was shown that most organic sulfur compounds were eliminated after biodesulfurization.
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机译：在土壤中分离出的菌株XP被鉴定为红球菌。 R. erythropolis XP可以有效地脱除苯并萘噻吩（一种存在于原油中的复杂模型硫化合物）。苯并萘噻吩的脱硫产物被鉴定为α-羟基-β-苯基-萘。加氢脱硫后，静止电池可以使柴油脱硫（有机硫总量为259 ppm）。通过在30°C下使用静态细胞生物催化剂24小时，柴油中的硫含量降低了94.5％。还研究了原油的生物脱硫。在30°C处理72小时后，去除了抚顺原油中的总硫含量（初始总硫含量3,210 ppm）的62.3％和苏丹原油中的总硫含量（初始总硫含量1,237 ppm）的47.2％。采用脉冲火焰光度检测器分析的气相色谱法评价了赤红假单胞菌XP处理对抚顺原油中硫含量的影响，结果表明生物脱硫后大部分有机硫化合物被消除。
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