Simultaneous Removal of Thiophene and Dibenzothiophene by Immobilized <i>Pseudomonas delafieldii</i> R-8 cells

唐煌; 李强; 王泽龙; 闫道江; 邢建民

doi:10.1016/S1004-9541(12)60362-0

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Simultaneous Removal of Thiophene and Dibenzothiophene by Immobilized Pseudomonas delafieldii R-8 cells

Updated：2026-01-06

- Simultaneous Removal of Thiophene and Dibenzothiophene by Immobilized Pseudomonas delafieldii R-8 cells
- Chinese Journal of Chemical Engineering Vol. 20, Issue 1, Pages: 47-51(2012)
- Affiliations：
  
  1. National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sci-ences,Beijing,China,100190
  2. Graduate University of Chinese Academy of Sciences,Beijing,China,100049
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(12)60362-0
  CLC： TE624.1
- Published：2012
- Accepted：
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R-8 cells[J]. , 2012, 20(1): 47-51.
DOI：

R-8 cells[J]. , 2012, 20(1): 47-51. DOI： 10.1016/S1004-9541(12)60362-0.

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Abstract

Biodesulfurization(BDS) is a promising technology for deep desulfurization.In this work

Pseudomonas delafieldii

R-8 cells are immobilized in calcium alginate beads and used for BDS of transportation fuels.It is found that thiophene and dibenzothiophene(DBT) can be simultaneously metabolized by immobilized R-8 cells.The initial sulfur content in the model oil is 300 mg·kg

-1

(thiophene:DBT 1:1).After 10 h of treatment

the thiophene concentration is reduced by 40%

while DBT is reduced by 25%.The utilization rate of thiophene is faster than that of DBT.Moreover

the oil/water ratio of alginate immobilized cells is studied to reduce the water volume in desulfurization systems.Long-term recycling of BDS by alginate immobilized cells is carried out with oil/water ratio at 5:1.The immobilized cells are successfully reused over 15 batch cycles.In the last batch

the desulfurization activity remains at least 75% of the first batch.

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Simultaneous Removal of Thiophene and Dibenzothiophene by Immobilized Pseudomonas delafieldii R-8 cells

DOI：10.1016/S1004-9541(12)60362-0

摘要

Abstract

关键词

Keywords

references