Research on the Oligomeric Reaction of 1-Butene with SO42--ZrO2/γ-Al2O3 Catalyst

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Abstract SO₄^2--ZrO₂/γ-Al₂O₃ catalysts were prepared by impregnation method for the oligomerization of 1-butene. The effects of the loading of active components on the acidity of the catalysts and the properties of the catalysts for the oligomerization of 1-butene were investigated. SO₄^2- loaded 2.10 mmol/g (γ-Al₂O₃), Zr-loaded 0.49 mmol/g, SO₄^2--ZrO₂/γ-Al₂O₃ catalyst calcined at 500℃, the conversion of 1-butene can reach 92%, the product is mainly dimer, the selectivity is 78.26%, and the trimer selectivity is 21.33%. The ratio of SO₄^2- to Zr is 2-4, and 1-butene conversion rate is high. The pore surface area analyzer and NH₃-TPD were used to characterize the catalysts. The results show that the interaction of SO₄^2-, Zr and γ-Al₂O₃ has certain influence on acidity, and has good catalytic activity and selectivity under the interaction of a certain amount of acid, a suitable amount of weak acid centers and stronger acid centers.

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	Ran Cong
	Li Wenze
	Ge Rongrong
	Zeng Yan
	Yin Haoxuan
	Xiao Linjiu

Keywords： catalyst engineering； SO₄^2--ZrO₂/γ-Al₂O₃ catalyst； 1-butene oligomerization

Received 2018-11-12;

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Ran Cong, Li Wenze, Ge Rongrong, Zeng Yan, Yin Haoxuan, Xiao Linjiu.Research on the Oligomeric Reaction of 1-Butene with SO₄^2--ZrO₂/γ-Al₂O₃ Catalyst[J] Chemcial Industry and Engineering, 2019,V36(6): 37-41,71

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