Method for removing organic sulfur from heterocyclic sulfur-containing organic compounds
OwnerRonald M. Atlas, David J. Boron +4inventors
InventorsRonald M. Atlas, David J. Boron, William R. Deever, Axel R. Johnson, Beverly Lynn McFarland, Jarold A. Meyer
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Abstract
A method for removing sulfur from liquid compositions containing aliphatic or cylic organic sulfur-containing compounds, e.g., dibenzothiophene includes activating the sulfur-containing compound by oxidizing either the organic sulfur or adjacent carbon atoms in the presence of a suitable active biocatalyst (ie., microorganism, enzyme, etc.) followed by treating of the activated compound by techniques such as fluidized catalytic cracking so as to remove the sulfur therefrom.
Claims16
A method for removing organic sulfur from a liquid composition containing aliphatic and/or heterocyclic sulfur-containing organic compounds comprising:
- (a) providing a liquid composition containing a sulfur-containing organic compound;
- (b) activating said sulfur-containing organic compound by oxidizing at least one of (i) a sulfur atom or (ii) a carbon atom adjacent to the sulfur atom so as to provide an activated compound said oxidizing step is performed in the presence of an active biocatalyst capable of oxidizing sulfur to sulfoxide, sulfone, or sulfonic acid;
- and
- (c) removing sulfur from the activated compound.
A method for making FCCU gasoline form a feed stream containing at least one organic sulfur-containing compound comprising:
- (a) activating the at least one organic sulfur-containing compound by oxidizing at least one of (i) a sulfur atom or (ii) a carbon atom adjacent to the sulfur atom in the presence of a biocatalyst capable of oxidizing sulfur to sulfoxide, sulfone, or sulfonic acid;
- and
- (b) removing sulfur from the activated compound.
Dependencies are inferred from the claim text.