Catalysts for Synthesis of Light Alkenes From Carbon Dioxide Through Hydrogenation With One-Step Method

doi:10.3696/j.issn.1672-6952.2011.03.002

Journal of Liaoning Petrochemical University ›› 2011, Vol. 31 ›› Issue (3): 4-7.DOI: 10.3696/j.issn.1672-6952.2011.03.002

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Catalysts for Synthesis of Light Alkenes From Carbon Dioxide Through Hydrogenation With One-Step Method

TIAN Shi-chao， HAN Li-li， HOU Jun-qi， BIAN Wan-ying，TIAN Xiao-guang， LI Yong-chao， LIAN Pi-yong*

School of Chemistry and Materials Science，Liaoning Shihua University，Fushun Liaoning 113001，P.R .China

Received:2011-05-27 Published:2011-09-25 Online:2017-07-05

二氧化碳加氢一步法制低碳烯烃催化剂的研究

田世超,韩丽丽,侯俊琦,卞婉莹,田晓光,李永超,连丕勇*

辽宁石油化工大学化学与材料科学学院,辽宁抚顺113001

作者简介:田世超(1987-),男,辽宁铁岭市,在读硕士。
基金资助:
辽宁省教育厅资助项目(2008T109)。

Abstract

Abstract:

CuO-ZnO/SAPO-34 composite catalyst was prepared by hydrothermal method, and applied in catalytic hydrogenation of carbon dioxide to light olefins in one-step process. CuO-ZnO was used to synthesis methanol from CO₂, while SAPO-34 molecular sieve take the catalytic role of methanol dehydration to light olefins. The properties and catalytic activity of composite catalyst were investigated by XRD, TEM, SEM, IR and fixed bed response evaluation. When the reaction condition is reaction temperature 270 ℃, the reaction pressure 3.5 MPa, molar ratio of hydrogen/carbon dioxide 4, volumetric space velocity 1 600 h^-1, the catalyst shows good activity and selectivity. The conversion rate of CO₂ can reach 18.71%，and the yields of ethylene and propylene can reach 9.27% and 4.76%.

Key words: Carbon dioxide , , Hydrogenation , Light alkenes, CuO-ZnO/SAPO-34 composite catalyst

摘要： 采用水热合成法制备了CuO-ZnO/SAPO-34复合催化剂,以CuO-ZnO 为甲醇合成催化剂,以
SAPO-34分子筛为甲醇脱水催化剂,研究了催化二氧化碳加氢一步法制备低碳烯烃的方法。通过XRD、TEM、
SEM、IR和固定床反应活性评价,系统地考察了复合催化剂的物化性质和催化反应性能。在反应温度270 ℃、压力
3.5MPa、n(H2)∶n(CO2)=4∶1、体积空速为1600h^-1的反应条件下,该催化剂表现出较好的活性和选择性。CO₂的转化率可达到18.71%,乙烯、丙烯的产率分别达到9.27%和4.76%

关键词: 二氧化碳 , , 催化加氢 , , 低碳烯烃 , , CuO-ZnO/SAPO-34复合催化剂

TIAN Shi-chao， HAN Li-li，HOU Jun-qi，BIAN Wan-ying，TIAN Xiao-guang，LI Yong-chao，LIAN Pi-yong.

Catalysts for Synthesis of Light Alkenes From Carbon Dioxide Through Hydrogenation With One-Step Method

[J]. Journal of Liaoning Petrochemical University, 2011, 31(3): 4-7.

田世超,韩丽丽,侯俊琦,卞婉莹,田晓光,李永超,连丕勇. 二氧化碳加氢一步法制低碳烯烃催化剂的研究[J]. 辽宁石油化工大学学报, 2011, 31(3): 4-7.

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Catalysts for Synthesis of Light Alkenes From Carbon Dioxide Through Hydrogenation With One-Step Method

二氧化碳加氢一步法制低碳烯烃催化剂的研究

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