C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
252/1.E, 260/709
C07C 1/20 (2006.01) B01J 8/28 (2006.01) B01J 29/90 (2006.01) B01J 38/30 (2006.01) B01J 29/85 (2006.01)
Patent
CA 2292765
The present invention relates to methods for selectively converting oxygenates to light olefins, desirably ethylene and propylene, in which desirable carbonaceous deposits are maintained on a total reaction volume of catalyst by regenerating only a portion of the total reaction volume of catalyst and mixing the regenerated portion with the unregenerated total reaction volume of catalyst.
L'invention concerne des procédés permettant de convertir de manière sélective des composés oxygénés en oléfines légères (de préférence, éthylène et propylène) dans lesquelles on maintient les dépôts carbonés recherchés, sur un volume de réaction totale du catalyseur, en régénérant seulement une partie de ce volume, et en mélangeant la partie régénérée avec le volume de réaction total du catalyseur non régénéré.
Kuechler Keith H.
Lattner James R.
Skouby David C.
Sun Hsiang-Ning
Vaughn Stephen N.
Borden Ladner Gervais Llp
Exxon Chemical Patents Inc.
Exxonmobil Chemical Patents Inc.
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