Gas conversion using hydrogen produced from syngas for...

C - Chemistry – Metallurgy – 10 – G

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C10G 45/02 (2006.01) C10L 3/06 (2006.01)

Patent

CA 2317646

A gas conversion process comprising synthesis gas production, hydrocarbon synthesis and hydrogen production from the synthesis gas, also includes hydrodesulfurizing sulfur-containing hydrocarbon liquids separated from a mixture of natural gas and the liquids produced from a gas well. Hydrogen produced from the synthesis gas is used for the hydrodesulfurization. The hydrogen is produced from the synthesis gas by one or more of (i) physical separation means such as pressure swing adsorption and (ii) chemical means such as a water gas shift reactor. The synthesized hydrocarbons are upgraded by hydroconversion. A portion of the hydrogen produced from the synthesis gas may also be used for at least one of (i) hydrocarbon synthesis catalyst rejuvenation and the hydroconversion.

La présente invention concerne un procédé de transformation de gaz comprenant la production de gaz de synthèse, la synthèse d'hydrocarbures et la production d'hydrogène à partir du gaz de synthèse, ainsi que l'hydrodésulfuration des liquides hydrocarbonés à teneur en souffre séparés d'un mélange de gaz naturel et des liquides produits par un puits de gaz. L'hydrogène produit à partir du gaz de synthèse est utilisé pour l'hydrodésulfuration. L'hydrogène est produit à partir du gaz de synthèse par un ou plusieurs (i) moyens physiques de séparation, tels qu'une adsorption par oscillation de pression et (ii) des moyens chimiques, tels qu'un convertisseur à la vapeur d'eau. Les hydrocarbures synthétisés sont enrichis par hydroconversion. On peut par ailleurs utiliser une partie de l'hydrogène produit à partir du gaz de synthèse pour une (i) régénération du catalyseur de synthèse des hydrocarbures et/ou pour l'hydroconversion.

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