C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 10/06 (2006.01) C10G 11/05 (2006.01) C10G 11/08 (2006.01) C10G 11/18 (2006.01) C10G 51/02 (2006.01) C10G 57/02 (2006.01)
Patent
CA 2400382
A process for producing polymers from C2-C4 olefins selectively produced from a catalytically-cracked or thermally-cracked naphtha stream is disclosed herein. A mixture of the naphtha stream and a stream of steam is fed into a reaction zone where it is contacted with a catalyst containing from about 10 to 50 wt. % of a crystalline zeolite having an average pore diameter less than about 0.7 nanometers at reaction conditions that include temperatures from about 500 ~C to 650 ~C and a hydrocarbon partial pressure from about 10 to 40 psia.
L'invention concerne un procédé de production de polymères à partir d'oléfines C¿2?-C¿4? produites sélectivement à partir d'un flux de naphta craqué par voie catalytique ou thermique. Un mélange de flux de naphta et d'un flux de vapeur est acheminé dans une zone de réaction dans laquelle il est mis au contact avec un catalyseur contenant environ 10 à 50 % en poids d'une zéolite cristalline ayant un diamètre de pore moyen inférieur à environ 0,7 nanomètre, dans des conditions de réaction comprenant des températures allant d'environ 500 ·C à 650 ·C, et une pression partielle d'hydrocarbures allant d'environ 10 à 40 psia.
Asplin John E.
Chen Tan-Jen
Erik Henry B.
Fung Shun C.
Janssen Marcel J.
Borden Ladner Gervais Llp
Exxonmobil Chemical Patents Inc.
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