Process for manufacturing alkanes by reacting other alkanes...

C - Chemistry – Metallurgy – 07 – C

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Details

C07C 6/10 (2006.01) B01J 31/12 (2006.01) B01J 37/00 (2006.01) B01J 21/08 (2006.01) B01J 37/02 (2006.01)

Patent

CA 2475016

The present invention relates to a process for the manufacture of alkanes comprising a catalytic reaction resulting from contacting methane with at least one other starting alkane (I) in the presence of a metal compound (C) capable of catalysing a reaction for the splitting and/or recombination of a carbon-carbon bond and/or of a carbon-hydrogen bond and/or of a carbon-metal bond, which catalytic reaction results in the formation of at least one final alkane (II) having a number of carbon atoms equal to or greater than (2). In the process, the contacting operation is carried out under a methane partial pressure equal to or greater than 0.1 MPa, preferably in the range from 0.1 to 100 MPa. The metal compound (C) can be chosen from metal compounds supported on and dispersed over a solid support, metal compounds supported on and grafted to a solid support and non-supported metal compounds. Under these conditions, it was found that the yield of the catalytic reaction was improved, and that the catalytic stability and activity of the metal compound (C) over timer were greatly enhanced.

La présente invention concerne un procédé de production d'alcanes par une réaction catalytique, issue de la mise en contact de méthane avec au moins un autre alcane de départ (I) en présence d'un composé métallique (C) capable de catalyser une réaction de dissociation et/ou de recombinaison d'une liaison carbone-carbone et/ou d'une liaison carbone-hydrogène et/ou d'une liaison carbone-métal, laquelle réaction catalytique permet la formation d'au moins un alcane final (II) présentant un nombre d'atomes de carbone supérieur ou égal à 2. Selon ce procédé, l'opération de mise en contact est effectuée sous une pression partielle de méthane supérieure ou égale à 0,1 MPa, de préférence comprise entre 0,1 et 100 MPa. Ledit composé métallique (C) peut être sélectionné parmi des composés métalliques supportés et dispersés sur un support solide, des composés métalliques supportés et greffés sur un support solide et des composés métalliques non supportés. Dans ces conditions, on a découvert que le rendement de la réaction catalytique était augmenté et que l'activité et la stabilité catalytiques dudit composé métallique (C) s'amélioraient considérablement au fil du temps.

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