Patent ID: 6180846
Filing Date: 2001-01-30
Classification: B01J,C01B,C07C,F28D,F28F,Y02P,Y10S

Abstract:
A process for contacting reactants with a catalyst in a reaction zone while indirectly heating the reactants by contact with combustion gases formed in a heat producing zone, the process comprising:a) contacting a primary reactant stream with a catalyst for the promotion of an endothermic process in a plurality of narrow reaction channels defined by principal spaced apart plates, wherein at least a portion of the principal plates define one or more heat exchange channels on a side opposite one or more reaction channels and a plurality of secondary plates divide the heat exchange channels into oxidation channels and preheat channels;b) indirectly heating the primary reactant stream in the reaction channels by heat exchange with a hot gas stream across the principal plates that define the reaction channels;c) collecting a primary effluent stream from the reaction channels,d) passing an oxygen containing stream and at least a portion of the primary effluent stream or a portion of the primary reactant stream to an oxidation zone contained within the oxidation channels to produce a secondary effluent stream;e) passing at least a portion of the secondary effluent stream through the preheat channels and into contact with the principal spaced apart plates to supply the hot gas stream for indirect heat exchange with the reaction channels as described in step (b); and,f) recovering a product stream comprising at least a portion of the primary effluent stream or the secondary effluent steam.