|本期目录/Table of Contents|

[1]樊金龙,徐亚荣,陈蓝天,等.微波辅助离子交换法制备戊烯异构化催化剂[J].石化技术与应用,2023,6:413-417.
 FAN Jin-long,XU Ya-rong,CHEN Lan-tian,et al.Preparation of pentene isomerization catalysts by microwave-assisted ion exchange method[J].Petrochemical technology & application,2023,6:413-417.
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微波辅助离子交换法制备戊烯异构化催化剂(PDF)

《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:
2023年6期
页码:
413-417
栏目:
出版日期:
2023-11-10

文章信息/Info

Title:
Preparation of pentene isomerization catalysts by microwave-assisted ion exchange method
文章编号:
1009-0045(2023)06-0413-05
作者:
樊金龙12徐亚荣2陈蓝天2龚涛2许磊2朱学栋1*
1.华东理工大学 化工学院 化学工程国家重点实验室,上海 200237;2.中国石油乌鲁木齐石化公司 研究院,新疆 乌鲁木齐 830019
Author(s):
FAN Jin-long12XU Ya-rong2CHEN Lan-tian2GONG Tao2XU Lei2ZHU Xue-dong1
1.State Key Laboratory of Chemical Engineering,School of Chemical Engineering,East China University of Science and Technology,Shanghai 200237,China;2. Research Institute of Urumqi Petrochemical Company,PetroChina,Urumqi 830019,China
关键词:
戊烯异构化镁碱沸石(FER)催化剂微波辅助离子交换Na/K-FER分子筛转化率选择性
Keywords:
pentene isomerizationferrierite(FER)catalystmicrowave-assistedion exchangeNa/K-FER molecular sieveconversion rateselectivity
分类号:
TQ 028;O 643.36
DOI:
DOI:10.19909/j.cnki.ISSN1009-0045.2023.06.0413
文献标识码:
B
摘要:
采用晶种诱导合成的Na/K-FER分子筛与NH4Cl溶液通过微波辅助离子交换法,制得戊烯异构化分子筛催化剂,并与传统水热交换方法相比较,考察了离子交换条件对分子筛性能的影响,评价了催化剂对醚后碳五原料的戊烯异构化催化性能。结果表明:Na/K-FER分子筛晶面生长完整,结晶度良好;与水热离子交换法相比,微波辅助法可以提高分子筛中Na+和K+的交换效率;制备的戊烯异构化催化剂在反应温度为300 ℃,反应压力为0.3 MPa,质量空速为3.0 h-1的条件下,可稳定运行720 h,正戊烯转化率大于50%,异戊烯选择性大于90%。
Abstract:
The Na/K-FER molecular sieve synthesized by crystal seed induction and NH4Cl solution were used to prepare the pentene isomerization molecular sieve catalysts by the microwave-assisted ion exchange method. Compared with the traditional hydrothermal exchange method, the effect of ion exchange conditions on the performance of the molecular sieve was investigated,and its catalytic performance for pentene isomerization of post-ether C5 raw material was evaluated. The results showed that the crystal surface of Na/K-FER molecular sieve growed intact and had good crystallinity. Compared with the hydrothermal ion exchange method,the microwave-assisted method could improve the exchange efficiency of Na+ and K+ in molecular sieves. Under the conditions of the reaction temperature at 300 ℃,the reaction pressure at 0.3 MPa and the mass space velocity at 3.0 h-1,the prepared pentene isomerization catalyst could operate stably for 720 h,the conversion rate of n-pentene and the selectivity of isopentene was greater than 50%,90%,respectively.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2023-11-10