A kinetic study on biodesulfurization of di-benzothiophene in a downflow jet loop

Iran gets a lot of bad press in the U.S., but some interesting research is coming out of that country. Example …

A kinetic study on biodesulfurization of di-benzothiophene in a downflow jet loop (Iran)(2008)
19th World Petroleum Conference, Spain 2008
Forum 09: Latest advances and novel processes for deep desulfurization
From the Introduction
"Some organic sulfur compounds can only be eliminated by biological methods. Microbial desulfurization may be carried out both aerobically and anaerobically. In this study, anaerobic bacteria have been applied. In the presence of either hydrogen or nitrogen gases the sulfur organic compounds are reduced by the anaerobic bacteria. The products of reactions are H2S gas and organic compounds free from sulfur. One of the advantages of anerobic desulfurization is that no loss in the amount of oil is encountered by application of such processes. In addition, these reactions are more compatible with conventional hydrodesulfurization process applied in industry.

"In this study desulfurization of DBT (di-benzothiophene) by D. desulfuricans in an anaerobic jar without injection of hydrogen has been investigated. In addition, such a process has been conducted in a DJR (down flow jet loop bioreactor) system, with the injection of hydrogen.

"The results obtained from this study have been compared with those determined under different reaction methods."

View the full text of this paper at …
http://www.kgu.or.kr/download.php?tb=bbs_017&fn=5abe291428ef97a6efb630b92856c468.pdf&rn=509.pdf

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