PROCESS FOR THE PREPARATION OF AN OLEFINIC PRODUCT FROM AN OXYGENATE
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Issued Date -
Jul 3, 2014
app pub date -
Dec 20, 2013
filing date -
Dec 28, 2012
priority date (Note) -
Abandoned
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Abstract
The invention relates to a process for the preparation of ethylene and/or propylene comprising: (a) an oxygenate conversion step wherein a gaseous effluent comprising olefins is obtained; (b) subjecting the effluent to water removal and compression steps; (c) acid gas removal from the effluent obtained in step (b), wherein the gaseous effluent is treated with a caustic solution and a non-aqueous liquid stream comprising aromatic C7+ hydrocarbons is added to the caustic solution to control the formation of red oil, to obtain a treated gaseous effluent and a spent liquid phase comprising spent caustic solution, aromatic C7+ hydrocarbons and high molecular weight contaminants; and (d) separating an aqueous phase and a non-aqueous phase from the spent liquid phase; (e) purifying the non-aqueous phase by membrane separation using a hydrophobic non-porous or nano-porous membrane; and (f) separating the olefinic product from the treated gaseous effluent.
First Claim
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Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SHELL OIL COMPANY | P O BOX 576 HOUSTON TX 77001-0576 |
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
VAN, WESTRENEN Jeroen | Amsterdam, NL | 106 | 359 |
VIJAYAKUMARI, Sivakumar SADASIVAN | Amsterdam, NL | 21 | 6 |
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