Process for removing low amounts of organic sulfur from...

Details Process for removing low amounts of organic sulfur from... Process for removing low amounts of organic sulfur from...

C - Chemistry, Metallurgy

10

G

C10G 29/20 (2006.01) C01B 15/00 (2006.01) C10G 17/02 (2006.01) C10G 27/12 (2006.01) C10G 29/22 (2006.01) C10G 29/24 (2006.01)

Patent

CA 2420699

A process for desulfurizing fuels such as diesel oil and similar petroleum products to reduce the sulfur content to a range of from about 2 to 15 ppm sulfur is described. The sulfur containing fuel is contacted at slightly elevated temperatures with an oxidizing/extracting solution of formic acid, a small amount of hydrogen peroxide, and no more than about 25 wt % water. A removal process for separating substituted dibenzothiophene oxidation products from the fuel is also described.

Procédé servant à désulfurer des combustibles, tels que du mazout ou des produits pétroliers semblables afin de limiter la teneur en soufre à un niveau situé entre deux et quinze ppm. On met en contact le combustible contenant du soufre à des températures légèrement élevées avec une solution d'oxydation/d'extraction d'acide formique, une petite quantité de peroxyde d'hydrogène et 25 % en poids d'eau maximum. L'invention concerne également un procédé d'extraction servant à séparer du combustible des produits d'oxydation à base de dibenzothiophène substitué.

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