Biodesulfurization of dibenzothiophene and gas oil using a bioreactor containing a catalytic bed with Rhodococcus rhodochrous immobilized on silica

M. Alejandro Dinamarca, L. Orellana, J. Aguirre, PATRICIO FRANCISCO BAEZA CHANDIA, G. Espinoza, C. Canales, J. Ojeda

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Biodesulfurization (BDS) in a bioreactor packed with a catalytic bed of silica containing immobilized Rhodococcus rhodochrous was studied. Various bed lengths and support particle sizes were evaluated for BDS of dibenzothiophene (DBT) and gas oil. The sulfur-containing substrates were introduced separately into the bioreactor at different feed flows. Higher removal of sulfur from DBT and gas oil was achieved with a long bed, lower substrate flow, and larger sizes of immobilization particles. The packed bed bioreactor containing metabolic active cells was recycled and maintained BDS activity.

Original languageEnglish
Pages (from-to)1649-1652
Number of pages4
JournalBiotechnology Letters
Volume36
Issue number8
DOIs
StatePublished - Jul 2014
Externally publishedYes

Keywords

  • Biodesulfurization
  • Cell immobilization
  • Inorganic support
  • Operational variables
  • Packed bed bioreactor
  • Rhodococcus rhodochrous

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