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    • 2. 发明申请
    • METHOD OF DESULFURIZATION OF FOSSIL FUEL WITH FLAVOPROTEIN
    • FASIL燃料与FLAVOPROTEIN的脱硫方法
    • WO9617940A2
    • 1996-06-13
    • PCT/US9515865
    • 1995-12-05
    • ENERGY BIOSYSTEMS CORPSQUIRES CHARLES HJI WANXI LEIORTEGO BEATRICE CPOGREBINSKY OLGA SGRAY KEVIN ACHILDS JOHN D
    • SQUIRES CHARLES HJI WANXI LEIORTEGO BEATRICE CPOGREBINSKY OLGA SGRAY KEVIN ACHILDS JOHN D
    • C12N15/09C10G32/00C10L1/04C12N1/21C12N9/02C12N15/00C12N15/53C12P1/00C12R1/01C12R1/19C12S1/02C12N15/52
    • C12N9/0036C10G32/00C12P1/00C12R1/01
    • The invention relates to the discovery that the rate of reaction of the desulfurization of fossil fuels is enhanced by the addition of a flavoprotein to the biocatalyst. The invention is drawn to a method for enhancing the rate of desulfurizing a fossil fuel containing organic sulfur compounds, comprising the steps of: a) contacting the fossil fuel with an aqueous phase containing a biocatalyst capable of cleaving carbon-sulfur bonds and a rate-enhancing amount of a flavoprotein, thereby forming a fossil fuel and aqueous phase mixture; b) maintaining the mixture of step (a) under conditions sufficient for cleavage of the carbon-sulfur bonds of the organic sulfur molecules by the biocatalyst, thereby resulting in a fossil fuel having a reduced organic sulfur content; and c) separating the fossil fuel having a reduced organic sulfur content from the resulting aqueous phase. The invention also relates to a recombinant microorganism containing one or more recombinant DNA molecules which encode a biocatalyst capable of desulfurizing a fossil fuel containing organic sulfur molecules and which encode a flavoprotein. The invention also relates to a composition comprising (a) a biocatalyst capable of desulfurizing a fossil fuel containing organic sulfur molecules and (b) a flavoprotein.
    • 本发明涉及通过向生物催化剂中加入黄素蛋白来提高化石燃料脱硫反应速率的发现。 本发明涉及提高含有机硫化合物的化石燃料脱硫速率的方法,包括以下步骤:a)使化石燃料与含有能够裂解碳 - 硫键的生物催化剂的水相接触, 增加量的黄素蛋白,从而形成化石燃料和水相混合物; b)将步骤(a)的混合物保持在足以通过生物催化剂裂解有机硫分子的碳 - 硫键的条件下,从而导致具有降低的有机硫含量的化石燃料; 和c)从所得水相中分离具有降低的有机硫含量的化石燃料。 本发明还涉及含有一种或多种重组DNA分子的重组微生物,所述重组DNA分子编码能够脱硫含有有机硫分子的化石燃料并且编码黄素蛋白的生物催化剂。 本发明还涉及包含(a)能够使含有有机硫分子的化石燃料脱硫的生物催化剂和(b)黄素蛋白的组合物。