Process for preparing ethylene and propylene

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United States of America Patent

PATENT NO 8779226
APP PUB NO 20130237715A1
SERIAL NO

13606333

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Abstract

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The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of:

    a) providing an oxygenate-comprising feedstock;b) contacting the oxygenate-comprising feedstock with a molecular sieve-comprising catalyst at a temperature in the range of from 450 to 700° C. and converting at least part of the oxygenate into an olefinic product comprising ethylene and/or propylene; andc) retrieving the olefinic product,wherein the oxygenate-comprising feedstock comprises in the range of from 1 to 97 wt % of at least one tert-alkyl ether selected from the group MTBE, ETBE, TAME and TAEE, based on the weight of the oxygenates in the oxygenate-comprising feedstock, and further comprises methanol and/or DME.

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Patent Owner(s)

  • SHELL OIL COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chewter, Leslie Andrew Amsterdam, NL 73 161
Ramesh, Rajaram Amsterdam, NL 151 3928
Van, Westrenen Jeroen Amsterdam, NL 106 359

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