Patent ID: 6337204
Filing Date: 2002-01-08
Classification: C12N,C12R

Abstract:
A process for desulfurization of a hydrocarbon feedstock containing sulfur-containing organic molecules by a bacterial culture in the presence of an aqueous phase and in an oxidizing atmosphere, at a temperature of between 20 and 40Â° C., and at a pH of between 5 and 9, said process comprising the following stages:a) the feedstock and the aqueous phase are brought into contact with a biological culture comprising at least one bacterial strain selected from the group consisting of: Rhodococcus erythropolis CNCM I-2204, Rhodococcus erythropolis CNCM I-2205, Rhodococcus erythropolis CNCM I-2207, and Rhodococcus erythropolis CNCM I-2208, â€ƒand an enzymatic extract thereof, thereby obtaining a reaction medium; b) separating from the reaction medium a desulfurized oily phase that is recovered and an aqueous phase containing the biological culture, and c) recycling, at least partially, the resultant aqueous phase from stage (b) into stage (a).