Oligomerization of Butene-2 over HZSM-5 Zeolite

Abstract

Abstract: Oligomerization of butene-2 over HZSM-5 zeolite was carried out in a continuous flow fixed-bed reactor at210-300℃,3-5MPa, and0.5-1.5h-1of LHSV. The results showed that the reactions of butene-2 over the HZSM-5 zeolite and the content of higher molecular weight olefins in liquid products were influenced by temperature, pressure, and space velocity. The product was dominantly olefins at the reaction temperatures below 300 ℃, and the less branched structure of the product suggested shape-selective catalysis over HZSM-5. The acidity of the HZSM-5 zeolite influenced the activity and selectivity, and the zeolite with lower silica/alumina ratio enhanced the liquid yield and selectivity for higher olefins.

Key words: butene-2, oligomerization, HZSM-5 zeolite, acidity, silica-alumina ratio

LIU Shu;;LI Chunlin;LIU Guangyu;ZHANG Dazhi;ZHANG Yangyang;SUN Xinde;LIU Zhongmin*. Oligomerization of Butene-2 over HZSM-5 Zeolite[J]. Chinese Journal of Catalysis, 2008, 29(4): 319-324.

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Oligomerization of Butene-2 over HZSM-5 Zeolite

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