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Microbial desulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene in dodecane and straight-run diesel oil
Alternative TitleKorean J. Chem. Eng.
Luo, MF; Xing, JM; Gou, ZX; Liu, HZ; Chen, JY
2003-07-01
Source PublicationKOREAN JOURNAL OF CHEMICAL ENGINEERING
ISSN0256-1115
Volume20Issue:4Pages:702-704
AbstractThe desulfurization of dibenzothiophene (DBT), 4,6-dimethyldibenzothiophene (4,6-DMDBT) and their mixture by lyophilized cells of Pseudomonas delafieldii R-8 was studied in the presence of dodecane. The desulfurization rate for 4,6-DMDBT was found to be about 40% in comparison with that for DBT. The desulfurization process for DBT and 4,6-DMDBT proceeded simultaneously without preference for either one. The desulfurization rate for each compound was decreased when they were mixed together. The extent of desulfurization of 4,6-DMDBT was increased with the increase of cell concentration and the decrease of the volume ratio of oil-to-water used. The specific desulfurization rate for 4,6-DMDBT could be reached to 10.4 mmol sulfur kg(-1) (cell) h(-1) [approximately 0.33 mg sulfur g(-1) (cell) h(-1)]. Pseudomonas delafieldii R-8 showed high desulfurization capability for straight-run diesel oil (containing 1,807 mg/L of sulfur). About 1,000 mg/L of sulfur in diesel oil was removed by resting cells of this strain in 24 h of reaction. The specific desulfurization rate was 8.75 mmol sulfur kg(-1) (cell) h(-1).; The desulfurization of dibenzothiophene (DBT), 4,6-dimethyldibenzothiophene (4,6-DMDBT) and their mixture by lyophilized cells of Pseudomonas delafieldii R-8 was studied in the presence of dodecane. The desulfurization rate for 4,6-DMDBT was found to be about 40% in comparison with that for DBT. The desulfurization process for DBT and 4,6-DMDBT proceeded simultaneously without preference for either one. The desulfurization rate for each compound was decreased when they were mixed together. The extent of desulfurization of 4,6-DMDBT was increased with the increase of cell concentration and the decrease of the volume ratio of oil-to-water used. The specific desulfurization rate for 4,6-DMDBT could be reached to 10.4 mmol sulfur kg(-1) (cell) h(-1) [approximately 0.33 mg sulfur g(-1) (cell) h(-1)]. Pseudomonas delafieldii R-8 showed high desulfurization capability for straight-run diesel oil (containing 1,807 mg/L of sulfur). About 1,000 mg/L of sulfur in diesel oil was removed by resting cells of this strain in 24 h of reaction. The specific desulfurization rate was 8.75 mmol sulfur kg(-1) (cell) h(-1).
KeywordBiodesulfurization Dibenzothiophene Diesel Oil Pseudomonas Delafieldii Two-phase System
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
URL查看原文
Indexed BySCI
Language英语
WOS KeywordFOSSIL-FUELS ; CELLS ; BIODESULFURIZATION
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Engineering, Chemical
WOS IDWOS:000184555600017
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5308
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, Lab Separat Sci & Engn, State Key Lab Biochem Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Luo, MF,Xing, JM,Gou, ZX,et al. Microbial desulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene in dodecane and straight-run diesel oil[J]. KOREAN JOURNAL OF CHEMICAL ENGINEERING,2003,20(4):702-704.
APA Luo, MF,Xing, JM,Gou, ZX,Liu, HZ,&Chen, JY.(2003).Microbial desulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene in dodecane and straight-run diesel oil.KOREAN JOURNAL OF CHEMICAL ENGINEERING,20(4),702-704.
MLA Luo, MF,et al."Microbial desulfurization of dibenzothiophene and 4,6-dimethyldibenzothiophene in dodecane and straight-run diesel oil".KOREAN JOURNAL OF CHEMICAL ENGINEERING 20.4(2003):702-704.
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