Chemistry: molecular biology and microbiology – Process of utilizing an enzyme or micro-organism to destroy... – Petroleum oil or shale oil treating
Patent
1995-10-03
1997-01-14
Paden, Carolyn
Chemistry: molecular biology and microbiology
Process of utilizing an enzyme or micro-organism to destroy...
Petroleum oil or shale oil treating
435262, C10C 300
Patent
active
055938892
ABSTRACT:
A simple and effective biochemical process solves the problems associated with sulfur in bitumen by removing sulfur from active participation in SO.sub.x -producing combustion reactions. In one aspect, an emulsion of bitumen and water is contacted with a microbiological desulfurization agent for a time and under conditions effective to reduce the oxidizable sulfur content of the bitumen. The preferred agents do not affect the heating value of the fuel, but selectively oxidize organic sulfur to water-soluble sulfates which can either be physically removed or chemically bound so that they do not cause SO.sub.x production. Multistage reaction is employed to enhance sulfur removal.
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