Enzymatic coal desulfurization

Details Enzymatic coal desulfurization Enzymatic coal desulfurization

C - Chemistry, Metallurgy

12

S

195/64

C12S 1/02 (2006.01) C10L 9/10 (2006.01)

Patent

CA 1334947

The invention relates to a method wherein coal is desulfurized by treatment with a hydrolase to convert organic sulfur moieties in the coal matrix to sulfates, and by treatment with a sulfatase to cleave the sulfates. In particular the invention provides a method for reducing the total sulfur content of a fossil fuel containing organic sulfur comprising the steps of: contacting the fossil fuel with a solution containing sulfatase to release organic sulfur as water-soluble free sulfate; recovering from the solution a fossil fuel having a reduced sulfur content.

609352

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