Production of linear alkyl benzene

C - Chemistry – Metallurgy – 07 – C

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C07C 7/10 (2006.01) C07C 2/70 (2006.01) C10G 21/16 (2006.01)

Patent

CA 2518544

This invention relates to a process for producing linear alkyl benzene and linear paraffins, the process including the steps of obtaining a hydrocarbon condensate containing olefins, paraffins and oxygenates from a low temperature Fischer-Tropsch reaction; a) fractionating a desired carbon number distribution from the hydrocarbon condensate to form a fractionated hydrocarbon condensate stream; b) extracting oxygenates from the fractionated hydrocarbon condensate stream from step a) to form a stream containing olefins and paraffins; c) alkylating the stream containing olefins and paraffins from step b) with benzene in the presence of a suitable alkylation catalyst; and d) recovering linear alkyl benzene and linear paraffin.

L'invention se rapporte à un procédé de production d'alkyle benzène linéaire et de paraffines linéaires, comprenant les étapes consistant à produire un condensat d'hydrocarbure contenant des oléfines, des paraffines et des composés oxygénés au moyen d'une réaction de Fischer-Tropsch à basses températures; a) à fractionner le condensat d'hydrocarbure pour obtenir une distribution en nombres d'atomes de carbone désirée et former un courant de condensat d'hydrocarbure fractionné; b) à extraire des composés oxygénés du courant issu de l'étape a) pour former un courant contenant des oléfines et des paraffines; c) à alkyler le courant contenant des oléfines et les paraffines obtenu à l'étape b) avec du benzène en présence d'un catalyseur d'alkylation adapté et d) à récupérer de l'alkyle benzène linéaire et du paraffine linéaire.

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