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由中国石化集团公司石油化工科学研究院和燕山石化（集团）公司共同承担的“苯和乙烯液相烷基化合成乙苯催化剂和工艺中试”项目（系中国石化集团公司的技术开发合同项目），于１９９９年７月８日在石油化工科学研究院通过了技术鉴定。石油化工科学研究院自９０年代初开始苯和?
Sinopec Group Company Petrochemical Research Institute and Yanshan Petrochemical (Group) Company jointly assume the “Benzene and ethylene liquid phase alkylation of ethylbenzene catalyst and process pilot” project (Sinopec Group’s technology development contract project ), In July 8, 1999 in the Institute of Petrochemical Technology passed the technical appraisal. Petrochemical Research Institute since the early 90s began benzene and?