Shape-selective isopropylation of 2-methylnaphthalene over modified HM catalysts

Liang Zhao, Min Liu, Xiangsheng Wang, Chunshan Song, Xinwen Guo

Research output: Contribution to journalArticle

Abstract

A series of HM catalysts modified with CeO2 and MgO were prepared by impregnation method. Isopropylation reaction of 2-methylnaphthalene (2-MN) with isopropanol to 2-methyl-6-isopropylnaphthalene (2, 6-MIPN) catalyzed by modified HM catalyst was carried out in fixed-bed down-flow reactor. The results showed that the optimal reaction conditions of 2-MN isopropylation were the reaction pressure of 2 MPa, reaction temperature of 200°C, n(2-MN):n(i-PrOH):n(Cyclohexane)=1:3:70. Under the optimal conditions and over 20%CeO2/HM catalyst, 2-MN conversion reached 37.7%, 2, 6-MIPN selectivity and yield were 83.0% and 28.7%, respectively, after 8 h reaction on stream, and over the HM catalyst modified by CeO2 and MgO, the selectivity of 2, 6-MIPN could reach 89.5%. The reason is that CeO2 and MgO can decrease the internal and external acid sites of HM catalysts, reduce the non-shape-selective reaction and improve the selectivity to 2, 6-MIPN.

Original languageEnglish (US)
Pages (from-to)871-876
Number of pages6
JournalShiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section)
Volume26
Issue number6
DOIs
StatePublished - Dec 1 2010

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

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