A process for preparing methanol, dimethyl ether, and low...

Details A process for preparing methanol, dimethyl ether, and low... A process for preparing methanol, dimethyl ether, and low...

C - Chemistry, Metallurgy

07

C

C07C 27/06 (2006.01) B01J 21/00 (2006.01) B01J 23/00 (2006.01) C07C 1/04 (2006.01)

Patent

CA 2744628

The present invention provides a process for preparing methanol, dimethyl ether, and low carbon olefins from syngas, wherein the process comprises the step of contacting syngas with a catalyst under the conditions for converting the syngas into methanol, dimethyl ether, and low carbon olefins, characterized in that, the catalyst contains an amorphous alloy consisting of a first component Al and a second component, said second component being one or more elements or oxides thereof selected from Group IA, IIIA, IVA, VA, IB, IIB, IVB, VB, VIB, VIIB, VIII, and Lanthanide series of the Periodic Table of Elements, and said second component being different from the first component Al. According to the present process, the syngas can be converted into methanol, dimethyl ether, and low carbon olefins in a high CO conversion, a high selectivity of the target product, and high carbon availability.

L'invention porte sur un procédé de fabrication de méthanol, d'oxyde de diméthyle et d'oléfines légères à partir de gaz de synthèse. Dans le processus de la préparation, du gaz de synthèse est en contact avec un catalyseur. Le catalyseur contient un alliage amorphe qui est composé du premier composant Al et du second composant. Le second composant est un ou plusieurs éléments choisis parmi les éléments des groupes IA, IIIA, IVA, VA, IB, IIB, IVB, VB, VIB, VIIB, VIII et les lanthanides et leurs oxydes, et de plus le second composant n'est pas Al. Les caractéristiques du procédé de préparation consistent en ce que le taux de conversion de CO est élevé, la sélectivité vis-à-vis du produit ciblé est élevée et le taux d'utilisation du carbone est élevé.

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