1-丁烯低聚反应SO42--ZrO2/γ-Al2O3催化剂的研究

摘要通过浸渍法制备SO₄^2--ZrO₂/γ-Al₂O₃催化剂，用于催化1-丁烯低聚反应，考察了活性组分的负载量对催化剂酸性影响及对1-丁烯低聚反应性能的影响。SO₄^2-负载量为2.10 mmol/g（γ-Al₂O₃）、Zr负载量为0.49 mmol/g，500℃焙烧的SO₄^2--ZrO₂/γ-Al₂O₃催化剂，1-丁烯转化率可达到92%，产物以二聚体为主，选择性为78.26%，三聚体选择性为21.33%。SO₄^2-与Zr的物质的量之比在2~4之间，1-丁烯转化率高。并采用孔隙比表面积分析仪、NH₃-TPD对催化剂进行表征。结果表明SO₄^2-、Zr与γ-Al₂O₃的相互作用对酸性有一定影响，在一定的酸量、适量的弱酸中心和较强酸中心相互作用下，有良好的催化活性和选择性。

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	冉聪
	李文泽
	葛荣荣
	曾妍
	殷浩轩
	肖林久

关键词：催化剂工程； SO₄^2--ZrO₂/γ-Al₂O₃催化剂； 1-丁烯低聚反应

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.

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

Received 2018-11-12;

Fund:辽宁省科技攻关项目（2006223004）。

Corresponding Authors: 肖林久,E-mail:x109@163.com。 Email: x109@163.com

About author: 冉聪(1994-),女,硕士研究生,现从事工业催化方面的研究。

引用本文:

冉聪, 李文泽, 葛荣荣, 曾妍, 殷浩轩, 肖林久.1-丁烯低聚反应SO₄^2--ZrO₂/γ-Al₂O₃催化剂的研究[J]. 化学工业与工程, 2019,36(6): 37-41,71

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, 2019,36(6): 37-41,71

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