关键词: 催化剂, 8碳, 芳烃, 异构化

Abstract: Comparison between two types of C8 aromatics isomerization catalysts, ethylbenzene (EB) dealkylation catalyst and EB conversion catalyst, in the aspects of reaction activity, operation conditions, product distributions and processing capacity were described. A selection of technologies was discussed for the 60×104 t/a new integrated aromatics complex of Shanghai Petrochemical Company based on the conditions of the integrated unit, feed properties, catalyst performance, estimated material balance results and yield of para-xylene, finally, technology with EB dealkylation catalyst was adopted. It was concluded by the economic analysis data that technology with EB dealkylation catalyst required less equipment investment and could provide lower production cost for the objective product.

Key words: catalyst, 8 carbon, aromatic hydrocarbon, isomerization