C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 11/02 (2006.01) B01J 29/40 (2006.01) C07C 4/06 (2006.01) C10G 11/05 (2006.01)
Patent
CA 2175656
A process for producing light olefins, especially ethylene, propylene, isobutylene and isoamylene, together with high octane gasoline as by-product, comprises that petroleum hydrocarbons are contacted with phosphorus and rare earth containing high silica zeolite having a structure of pentasil catalysts and catalytically converted at a temperature of 480° to 680° C and a pressure of 1.2X10 5 to 4.0X10 5Pa, with a contact time of 0.1 to 6 seconds, a weight ratio of catalyst to feedstock of 4:1 to 10:1 and a weight ratio of steam to feedstock of 0.01:1 to 0.5:1.
Procédé de production par conversion catalytique d'oléfines inférieures telles que le propylène, l'isobutylène et l'isoamylène, et d'essence à indice d'octane élevé. Le procédé consiste à mettre un hydrocarbure de pétrole en contact avec un catalyseur solide pendant une durée allant de 0,1 à 6 secondes, à une température comprise entre 480 et 680 DEG C, et sous une pression de 1,2 à 4,0 x 10<5> Pa, le rapport entre le catalyseur et l'hydrocarbure étant compris entre 4 et 20. Le catalyseur solide comporte de la zéolithe à teneur élevée en silice, renfermant du phosphore et des terres rares, et présentant la structure d'un pentasil.
Jiang Fukang
Li Shichun
Li Zaiting
Liu Shunhua
Pan Rennan
China Petro-Chemical Corporation
Research Institute Of Petroleum Processing Sinopec
Smart & Biggar
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