Conversion process
AssigneeExxonMobil Chemical Patents Inc.
InventorsMarcel J. G. Janssen, Teng Xu, Cor F. Van Egmond, Keith H. Kuechler, Stephen N. Vaughn, James Harding Beech, Jr.
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Abstract
The invention relates to a conversion process for making olefin(s) using a molecular sieve catalyst composition. More specifically, the invention is directed to a process for converting a feedstock comprising an oxygenate in the presence of a molecular sieve catalyst composition, wherein the feedstock is free of or substantially free of metal salts.
Claims38
A process for converting a feedstock comprising an oxygenate, the process comprising the steps of:
- (a) introducing the feedstock to a reactor system in the presence of a molecular sieve catalyst composition comprising a molecular sieve, wherein the amount of a Group IA metal salt and/or Group IIA metal salt based on the molecular sieve is less than 10,000 ppm;
- (b) withdrawing from the reactor system an effluent stream;
- (c) passing the effluent stream through a recovery system;
- and
- (d) recovering at least one or more olefin(s) in amount greater than 1,000 Kg/day.
A process for converting oxygenate to olefin, comprising the steps of:
- a) providing an oxygenate composition having a positive conductivity of not greater than 10 uS/cm. and containing at least one Group IA or Group IIA metal salt;
- and
- b) contacting the oxygenate composition with a molecular sieve to convert oxygenate in the oxygenate composition to olefin.
A process for converting oxygenate to olefin, comprising the steps of:
- a) providing an oxygenate composition containing at least one Group IA or Group IIA metal salt;
- b) reducing conductivity of the oxygenate composition to form a treated feedstock having a conductivity of not greater than 10 uS/cm;
- and
- c) contacting the treated feedstock with a molecular sieve to convert oxygenate in the oxygenate composition to olefin.
Dependencies are inferred from the claim text.