| 碱改性ZSM-11分子筛及其催化裂化增产烯烃性能 |
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| 引用本文： | 任申勇,张莉,柳黄飞,胡清勋,王久江,张炳跃,郭巧霞,申宝剑. 碱改性ZSM-11分子筛及其催化裂化增产烯烃性能[J]. 分子催化, 2023, 37(3): 234-240 |
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| 作者姓名： | 任申勇 张莉 柳黄飞 胡清勋 王久江 张炳跃 郭巧霞 申宝剑 |
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| 作者单位： | 中国石油大学(北京)化学工程与环境学院, 北京102249,中国石油兰州化工研究中心, 甘肃 兰州 730060,中国石油大学(北京)化学工程与环境学院, 北京102249,中国石油兰州化工研究中心, 甘肃 兰州 730060,中国石油兰州化工研究中心, 甘肃 兰州 730060,中国石油大学(北京)化学工程与环境学院, 北京102249,中国石油大学(北京)化学工程与环境学院, 北京102249,中国石油大学(北京)化学工程与环境学院, 北京102249 |
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| 基金项目： | 国家自然科学基金创新研究群体科学基金(22021004) |
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| 摘 要： | 通过晶种辅助法合成ZSM-11分子筛,并对其进行碱处理从而制备了改性样品ZSM-11-AT.采用XRD、 N2吸附和脱附、 XRF、 TEM、 NH3-TPD和Py-IR等表征手段对样品ZSM-5、 ZSM-11和ZSM-11-AT的物化性质进行了表征和对比分析,发现改性样品ZSM-11-AT的比表面积、孔隙结构和酸性质均得到了改善.采用固定床反应装置对样品的催化裂化性能进行了评价,对样品ZSM-5、 ZSM-11和ZSM-11-AT的反应物转化率和产物分布进行了对比研究.结果表明, ZSM-11和ZSM-11-AT在烯烃乙烯和丙烯产率方面优于ZSM-5.与ZSM-11相比, ZSM-11-AT的催化性能得到了进一步的提高.
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| 关 键 词： | ZSM-11 晶种法辅助合成 碱处理 催化裂化 烯烃收率 |
| 收稿时间： | 2022-10-26 |
| 修稿时间： | 2023-01-10 |
Alkali Treatment of Molecular Sieve ZSM-11 and Its Catalytic Cracking for Olefin Production |
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| REN Shen-yong,ZHANG Li,LIU Huang-fei,HU Qing-xun,WANG Jiu-jiang,ZHANG Bing-yue,GUO Qiao-xia and SHEN Bao-jian. Alkali Treatment of Molecular Sieve ZSM-11 and Its Catalytic Cracking for Olefin Production[J]. Journal of Molecular Catalysis (China), 2023, 37(3): 234-240 |
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| Authors: | REN Shen-yong ZHANG Li LIU Huang-fei HU Qing-xun WANG Jiu-jiang ZHANG Bing-yue GUO Qiao-xia SHEN Bao-jian |
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| Affiliation: | State Key Laboratory of Heavy Oil Processing, the Key Laboratory of Catalysis of CNPC, College of Chemical Engineering and Environment, China University of Petroleum, Beijing 102249, China,Lanzhou Petrochemical Center, Petrochemical Research Institute, Petro China Company Limited, Lanzhou 730060, China,State Key Laboratory of Heavy Oil Processing, the Key Laboratory of Catalysis of CNPC, College of Chemical Engineering and Environment, China University of Petroleum, Beijing 102249, China,Lanzhou Petrochemical Center, Petrochemical Research Institute, Petro China Company Limited, Lanzhou 730060, China,Lanzhou Petrochemical Center, Petrochemical Research Institute, Petro China Company Limited, Lanzhou 730060, China,State Key Laboratory of Heavy Oil Processing, the Key Laboratory of Catalysis of CNPC, College of Chemical Engineering and Environment, China University of Petroleum, Beijing 102249, China,State Key Laboratory of Heavy Oil Processing, the Key Laboratory of Catalysis of CNPC, College of Chemical Engineering and Environment, China University of Petroleum, Beijing 102249, China and State Key Laboratory of Heavy Oil Processing, the Key Laboratory of Catalysis of CNPC, College of Chemical Engineering and Environment, China University of Petroleum, Beijing 102249, China |
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| Abstract: | Zeolite ZSM-11 was synthesized by seed-assist method and treated with alkali to obtain the modified sample ZSM-11-AT. The physical and chemical properties of the samples ZSM-5, ZSM-11 and ZSM-11-AT were characterized and compared using XRD, N2 adsorption and desorption, XRF, TEM, NH3-TPD, and Py-IR. The specific surface area, pore structure and acid property of modified sample ZSM-11-AT had been improved. The catalytic performances of the samples were evaluated using a catalytic cracking fixed-bed device. The reactant conversion and products distribution between ZSM-5, ZSM-11 and ZSM-11-AT were compared. The results showed that ZSM-11 and ZSM-11-AT had advantage over ZSM-5 in terms of olefin (ethylene and propylene) yield. The catalytic performance of ZSM-11-AT was further improved compared with ZSM-11. |
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| Keywords: | ZSM-11 seed-assist synthesis alkali treatment catalytic cracking olefin yield |
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