Chemistry: molecular biology and microbiology – Process of utilizing an enzyme or micro-organism to destroy... – Petroleum oil or shale oil treating
Patent
1993-10-12
1995-12-05
Wityshyn, Michael G.
Chemistry: molecular biology and microbiology
Process of utilizing an enzyme or micro-organism to destroy...
Petroleum oil or shale oil treating
435281, 210601, 210624, 208237, C10G 3200, C10G 2920, C02F 300, C02F 302
Patent
active
054728754
ABSTRACT:
A continuous cyclic process for desulfurizing a petroleum liquid which contains organic sulfur molecules, a significant portion of which are comprised of sulfur-bearing heterocycles. This process involves oxygenating the petroleum liquid and treating it with a biocatalyst capable of catalyzing the sulfur-specific oxidative cleavage of organic carbon-sulfur bonds in sulfur-bearing aromatic heterocyclic molecules such as dibenzothiophene. a particularly preferred biocatalyst is a culture of mutant Rhodococcous rhodocrous bacteria, ATCC No. 53968. In the present process, the activity of this biocatalyst is regenerated; it can be used for many cycles of treatment. A system for conducting the continuous cyclic process of biocatalytic desulfurization of petroleum liquids is also disclosed.
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Energy BioSystems Corporation
Reardon Timothy J.
Wityshyn Michael G.
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