Process for enhanced olefin production
AssigneeUop LLC
InventorsBipin V. Vora, Peter R. Pujado
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Abstract
The present invention relates to a process for the production of light weight olefins comprising olefins having from 2 to 3 carbon atoms per molecule from an oxygenate feedstock. The process comprises passing the oxygenate feedstock to an oxygenate conversion zone containing a metal aluminophosphate catalyst to produce a light weight olefin stream. A propylene stream and/or mixed butylene is fractionated from said light weight olefin stream and a medium weight C4 to C7 stream is cracked in a separate olefin cracking reactor to enhance the yield of ethylene and propylene products.
Claims8
An integrated system for producing ethylene and propylene comprising at least one methanol to olefins reactor, at least one olefin cracking reactor, at least one line between said reactors for passage of reactor effluent from said methanol to olefins reactor and at least one separation zone for separating light weight olefins, medium weight olefins, heavy weight olefins and other products into separate streams, an output of the at least one methanol to olefins reactor coupled to an input of the at least one separation zone and an output of the at least one olefin cracking reactor coupled to a separate input of the at least one separation zone.
An integrated system for producing ethylene and propylene comprising at least one methanol to olefins reactor, at least one olefin cracking reactor, at least one line between said reactors for passage of reactor effluent from said methanol to olefins reactor and at least one separation zone for separating light weight olefins, medium weight olefins, heavy weight olefins and other products into separate streams, the at least one olefin cracking reactor after the at least one methanol to olefins reactor, after a regeneration zone, and after at least one separation zone.
Dependencies are inferred from the claim text.