Process for the production of alkyl aromatic hydrocarbons

Details Process for the production of alkyl aromatic hydrocarbons Process for the production of alkyl aromatic hydrocarbons

C - Chemistry, Metallurgy

07

C

260/684.6

C07C 2/64 (2006.01) C07C 2/66 (2006.01)

Patent

CA 2027573

2027573 9011266 PCTABS00002 A process for the production of gasoline from a C4-fuel gas containing ethene and propene and catalytic reformate containing C6 to C8 aromatic hydrocarbons. The C4-fuel gas in stream (28) is obtained by catalytic cracking of the vacuum gas oil fraction (7) obtained by distillation of a crude feed (1) in a distillation apparatus (2). The reformate C6-C8 aromatic hydrocarbons in stream (15) is obtained by hydrotreating naphta (5) in zone (9), followed by reforming in zone (13). The C4-fuel gas (28) and C6-C8 aromatic reformate (15) are mixed and contacted in a catalytic reactor (29) with a zeolite catalyst to convert ethene and propene in the fuel gas to C5+ aliphatic and aromatic hydrocarbon gasoline and to convert C6 to C8 aromatics in the reformate into C7 to C11 hydrocarbon gasoline. In a preferred embodiment, the process comprises maintaining a fluidized bed of zeolite catalyst particles in a turbulent reactor be at a temperature of 350-900·C and a pressure of 20-650 psig (240-4580 kpa). The weight ratio or aromatics to olefins is at least 5:1.

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