Heavy aromatics processing
A process for converting a heavy aromatics feed to lighter aromatic products, such as benzene and xylene, by reacting C9+ aromatic hydrocarbons and toluene or benzene under transalkylation reaction conditions, over a first catalyst composition including a zeolite having a constraint index ranging fr...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A process for converting a heavy aromatics feed to lighter aromatic products, such as benzene and xylene, by reacting C9+ aromatic hydrocarbons and toluene or benzene under transalkylation reaction conditions, over a first catalyst composition including a zeolite having a constraint index ranging from 0.5 to 3 and a hydrogenation component and a second catalyst composition including an intermediate pore size zeolite having a constraint index ranging from 3 to 12 and a silica to alumina ratio of at least about 5, to produce a transalkylation reaction product containing benzene or toluene and xylene. The benzene or toluene from the reaction product can then be distilled to obtain a benzene or toluene product. |
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