Catalytic isobutane alkylation
AssigneePrecision Combustion, Inc.
InventorsWilliam C Pfefferle, Shahrokh Etemad
Life of this patent
Estimating the term…
Abstract
A novel catalytic reactor is provided for controlling the contact of a limiting reactant with a catalyst surface. A first flow vessel defines an interior surface and an exterior surface, and the interior surface has a catalyst deposited on at least a portion thereof. A second flow vessel is positioned within the first flow vessel and the second flow vessel defines a porous surface designed to deliver a fluid uniformly to at least a portion of the interior surface of the first flow vessel.
Claims10
A reactor for the partial oxidation of a hydrocarbon with an oxidant, wherein the reactor provides for controlling the contact of a limiting reactant comprising the oxidant with a catalyst surface, the reactor comprising:
- (a) a first flow vessel defining an interior surface and an exterior surface;
- (b) a catalyst capable of catalyzing the partial oxidation of a hydrocarbon, the catalyst deposited on at least a portion of the interior surface of the first flow vessel;
- (c) a second flow vessel positioned within the first flow vessel wherein the second flow vessel defines a porous surface designed to deliver a limiting reactant comprising an oxidant uniformly over the surface of the partial oxidation catalyst deposited on the interior surface of the first flow vessel;
- and
- (d) wherein under operative conditions when passing a feed of hydrocarbon between the second flow vessel exterior surface and the first flow vessel interior surface and when passing a feed of oxidant into the second flow vessel, a hydrocarbon-to-oxidant surface ratio at the surface of the catalyst is maintained greater than 50 times a hydrocarbon-to-oxidant feed ratio of the feeds of hydrocarbon and oxidant to the reactor.
A reactor for partial oxidation of a hydrocarbon comprising:
- (a) an outer tube defining an outer tube interior surface and an outer tube exterior surface;
- (b) a catalyst capable of catalyzing a partial oxidation of a hydrocarbon, the catalyst deposited on at least a portion of the outer tube interior surface so as to define a catalyst surface;
- (c) a porous metal tube positioned within the outer tube defining a porous metal tube interior surface and a porous metal tube exterior surface and providing a uniform flow rate over the length of the porous metal tube from the porous metal tube exterior surface to the outer tube interior surface;
- and
- (d) wherein under operative conditions when passing a feed of hydrocarbon between the porous metal tube exterior surface and the outer tube interior surface and when passing a feed of oxidant into the porous metal tube, a hydrocarbon-to-oxidant surface ratio at the surface of the catalyst is maintained greater than 50 times a hydrocarbon-to-oxidant feed ratio of the feeds of hydrocarbon and oxidant to the reactor.
Dependencies are inferred from the claim text.