Patent ID: 8373013

Claim:
A process for combining the catalytic conversion of organic oxygenates and the catalytic conversion of hydrocarbons, comprising the following steps: (1) reacting an organic oxygenate feedstock in the presence of a first portion of a regenerated Y-zeolite containing catalyst to produce a first product stream in a first reactor, wherein said first portion of the regenerated Y-zeolite containing catalyst becomes a coked catalyst, wherein said first product stream is separated in a first separation unit to obtain olefins; (2) reacting a petroleum-based hydrocarbon feedstock in the presence of a second portion of the regenerated Y-zeolite containing catalyst to produce a a second product stream in a second reactor, wherein the second portion of the regenerated Y-zeolite containing catalyst becomes a spent catalyst, wherein the second product stream is separated in a second separation unit to obtain products comprising LPG, gasoline, and diesel oil; (3) regenerating a mixture of the coked catalyst and the spent catalyst in a regenerator by coke-burning to obtain the regenerated Y-zeolite containing catalyst, wherein the mixture comprises all or a part of the coked catalyst and all or a part of the spent catalyst; (4) obtaining from the regenerated Y-zeolite containing catalyst the first portion of the regenerated Y-zeolite containing catalyst and the second portion of the regenerated Y-zeolite containing catalyst; (5) cooling the first portion of the regenerated Y-zeolite containing catalyst; (6) feeding the first portion of the regenerated Y-zeolite containing catalyst into the first reactor after the cooling step so that the first portion of the regenerated Y-zeolite containing catalyst supplies heat that substantially matches heat required for the conversion of the organic feedstock in the first reactor, wherein the conversion of the organic feedstock in the first reactor is endothermic; and (7) feeding the second portion of the regenerated Y-zeolite containing catalyst into the second reactor.