摘要
Rhodococcus sp.DS-3 with the ability to selectively desulfurize dibenzothiophene and grow with the sulfur atom desulfurized was quantitatively characterized in batch cultures.The fermentation process for desulphurization by DS-3 was analyzed.The transformation of dibenzothiophene to 2-hydroxydiphenyl was 86.3% in BioStat C10-3 fermentor with aerating at 48 L·h -1 , constant pH 7.8,fermentation temperature 30℃ and stirring at 300 r·min -1 .The kinetic models of growth,substrate consumption and product generation were established.The optimal parameters were estimated and fitted to model software MATLAB.The results, which showed the actual values in 95% confidence interval, proved that these kinetic models fitted well and fundamentally reflected the regularity of dibenzothiophene desulphurization in the fermentor.
Rhodococcus sp. DS-3 with the ability to selectively desulfurize dibenzothiophene and grow with the sulfur atom desulfurized was quantitatively characterized in batch cultures. The fermentation process for desulphurization by DS-3 was analyzed. The transformation of dibenzothiophene to 2-hydroxydiphenyl was 86.3 in BioStat C10-3 fermentor with aerating at 48 L · h^-1 , constant pH 7. 8, fermentation temperature 30℃ and stirring at 300 r · min^- 1 The kinetic models of growth, substrate consumption and product generation were established. The optimal parameters were estimated and fitted to model software MATLAB. The results, which showed the actual values in 95 % confidence interval, proved that these kinetic models fitted well and fundamentally reflected the regularity of dibenzothiophene desulphurization in the fermentor.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2006年第6期1418-1421,共4页
CIESC Journal
基金
天津市自然科学基金项目(05YFJMJC00700)
中国博士后科学基金项目(2005038460).~~
关键词
红球菌
生物脱硫
二苯并噻吩
发酵
动力学
模型
Rhodocqccus sp.
biodesulfurization
dibenzothiophene
fermentation
kinetics
model
