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US 2018/0312764 A1Published application
By-product stream upgrading in a propylene oxide/styrene coproduction process
AssigneeLyondell Chemical Technology, L.P.
InventorsSandor Nagy, Dan D. Lindsey, Barbara Kimmich, Justin E. Turner, Nicholas Bruschi, Ha H. Nguyen, Pranit S. Metkar, Anthony S. Dearth
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Abstract
The present disclosure relates to a method including subjecting an organic stream comprising at least one oxygenate to hydrotreatment, whereby a hydrotreatment product comprising ethylbenzene is produced, wherein the organic stream is a product of a process for the production of propylene oxide; and separating an ethylbenzene product stream from the hydrotreatment product, to yield a residual stream.
Claims19
A method comprising:
- (a) subjecting an organic stream comprising at least one oxygenate to hydrotreatment, whereby a hydrotreatment product comprising ethylbenzene is produced, wherein the organic stream is a product of a process for the production of propylene oxide;
- and
- (b) separating an ethylbenzene product stream from the hydrotreatment product, to yield a residual stream.
A method comprising:
- (a) providing a contaminated organic stream comprising at least one oxygenate and sodium contamination, wherein the organic stream is a product of a process for the production of propylene oxide;
- (b) reducing the level of sodium in the contaminated organic stream, to provide a pretreated organic stream;
- (c) subjecting the pretreated organic stream to hydrotreatment whereby a hydrotreatment product comprising ethylbenzene is produced;
- and
- (d) separating an ethylbenzene product stream from the hydrotreatment product, to provide a residual stream.
2 more elements
A method comprising:
- (a) subjecting an organic stream comprising at least one oxygenate to hydrotreatment, whereby a hydrotreatment product comprising ethylbenzene is produced, wherein the organic stream is a product of a process for the co-production of propylene oxide and styrene monomer;
- (b) separating an ethylbenzene product stream from the hydrotreatment product, to yield a residual stream;
- and
- (c) reusing the separated ethylbenzene product as a feed in the process for the co-production of propylene oxide and styrene monomer.
1 more element
Dependencies are inferred from the claim text.