C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 6/12 (2006.01) C07C 15/06 (2006.01) C07C 15/073 (2006.01) C07C 15/08 (2006.01)
Patent
CA 2721185
A process for the transalkylation of an aromatic feedstock containing a benzene component and a polyalkylated aromatic component comprising at least one polyalkyl aromatic compound of at least nine carbon atoms. The feedstock is supplied to a reaction zone containing a metal modified zeolite transalkylation catalyst. The reaction zone is operated under conditions providing an equivalent conversion of pure toluene in the presence of the catalyst within the range of 40-55%, resulting in a transalkylated product with a reduced polyalkyl benzene content and an enhance monoalkyl benzene content relative to the transalkylation feedstock. In continued operation of the transalkylation reaction zone, at least one of the reaction conditions of temperature, pressure, and space velocity is adjusted in order to maintain a constant reaction severity to provide a desired equivalent conversion of toluene within a tolerance range of ~ 2%. Specifically, the temperature is progressively increased while continuing the operation of the transalkylation zone to maintain a condition of constant reaction severity.
Butler James R.
Xiao Xin
Fina Technology Inc.
Gowling Lafleur Henderson Llp
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