改性磺酸树脂催化异戊烯二聚的研究  

Dimerization of isoamylene catalyzed by modified sulfonic acid resin

作　　者：刘平[1] 周磊[1] 任忠飞 周瑜 顾敬 LIU Ping;ZHOU Lei;REN Zhong-fei;ZHOU Yu;GU Jing(Jiangsu Key Laboratory of Green Catalytic Materials and Technology,School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China;State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemical Engineering,Nanjing Tech University,Nanjing 210009,China;School of Chemistry and Chemical Engineering,Anhui University of Technology,Maanshan 243002,China)

机构地区：[1]常州大学石油化工学院,江苏省绿色催化材料与技术重点实验室,江苏常州213164 [2]南京工业大学化工学院,材料化学工程国家重点实验室,江苏南京210009 [3]安徽工业大学化学与化工学院,安徽马鞍山243002

出　　处：《现代化工》2021年第10期73-77,共5页Modern Chemical Industry

基　　金：国家自然科学基金(21406019);江苏省精细石油化工重点实验室开放课题(KF1902);江苏省绿色催化材料与技术实验室开放课题(BM2012110)。

摘　　要：筛选了4种商业改性苯乙烯类耐高温磺酸树脂,考察其在异戊烯低聚反应中的催化性能。通过N2吸脱附及离子交换滴定测试各磺酸树脂的比表面积、孔结构及酸量。结果表明,高表面积、大孔径及高酸量有利于异戊烯的低聚反应。在80℃、2 MPa反应条件下,4种磺酸树脂催化异戊烯反应均主要生成二聚产物;其中DA-330催化剂具有较高的异戊烯转化率和二聚产物收率,且稳定性较好,重复使用5次其催化活性没有明显下降。Four kinds of commercial modified styrene-derived sulfonic acid resins with high temperature resistance are selected and their catalytic performances in oligomerization of isoamylene are investigated.The BET surface area,pore structure and acid amount of sulfonic acid resins are measured by means of N2 absorption-desorption and ion-exchange titration.It is shown that high specific surface area,large pore size and high acid amount are favorable for oligomerization of isoamylene.Under 80℃ and 2 MPa,the oligomerization of isoamylene over these four kinds of sulfonic acid resins mainly produce dimer products.Among them,DA-330 catalyst can lead to higher conversion rate of isoamylene and higher yield of dimers,and shows a good stability.Its catalytic activity has not decreased significantly after 5 times of reuse.

关 键 词：轻质烯烃 异戊烯 低聚 二聚 磺酸树脂 

分 类 号：TQ032.4[化学工程]