Process for producing poison-resistant catalysts

Details Process for producing poison-resistant catalysts Process for producing poison-resistant catalysts

B - Operations, Transporting

01

J

B01J 35/00 (2006.01) B01D 71/02 (2006.01) B01J 19/00 (2006.01) B01J 19/18 (2006.01) B01J 35/06 (2006.01) B01J 35/10 (2006.01) C07B 35/02 (2006.01) C07C 67/303 (2006.01)

Patent

CA 2115200

The invention relates to a poison-resistant catalytically active microporous membrane to be used for heterogeneously catalyzed reactions, which membrane is characterized in that it is permeable to one of the reactants separated by said membrane, and that it is impermeable to the other reactants and the contaminants contained therein, the molecules of all of which are larger in size than the pore size of the membrane, and to a process for carrying out a heterogeneously catalyzed reaction under conditions preventing the catalyst from being poisoned. This membrane allows to conduct three-phase reactions in a new manner, whereby the reaction gas is directly transported to the active sites.

L'invention concerne une membrane microporeuse catalytiquement active et résistant aux poisons, destinée à des réactions avec catalyse hétérogène; la membrane se caractérise par le fait qu'elle est perméable à l'un des réactifs séparés par ladite membrane, et qu'elle est imperméable aux autres réactifs et aux contaminants qui y sont présents et dont toutes les molécules ont un diamètre plus grand que la taille des pores de la membrane; on divulgue aussi un procédé pour effectuer la catalyse hétérogène dans des conditions qui empêchent l'empoisonnement du catalyseur. Cette membrane permet de procéder d'une nouvelle façon à des réactions en trois phases, où le gaz de réaction est directement transporté jusqu'aux sites actifs.

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