不同类型催化剂对异丁烯齐聚反应过程的影响  

Effects of different catalysts on isobutylene oligomerization

作　　者：崔婷婷 杜玉朋 房德仁[1] 任万忠[1] CUI Tingting;DU Yupeng;FANG Deren;REN Wanzhong(Shandong Collaborative Innovation Center of Light Hydrocarbon Transformation and Utilization,College of Chemistry&Chemical Engineering,Yantai University,Yantai 264005,Shandong,China)

机构地区：[1]烟台大学化学化工学院,山东省轻烃资源化综合利用协同创新中心,山东烟台264005

出　　处：《化工进展》2020年第3期1029-1034,共6页Chemical Industry and Engineering Progress

摘　　要：采用固定床反应器分别探究了三类催化剂(固体磷酸催化剂、酸性阳离子交换树脂催化剂以及分子筛催化剂)对异丁烯齐聚过程的影响。实验结果表明:固体磷酸催化剂适用于C8烯烃的生产,酸性阳离子树脂催化剂及改性的分子筛催化剂(Hβ)适合生产C12烯烃。异丁烯齐聚产物C8~C16(清洁燃料油)因无芳烃、无硫,在石化工业中具有非常广泛的应用潜力;由三种类催化剂的评价结果来看,C8~C16的选择性最高时均能接近100%,但是固体磷酸催化剂和酸性阳离子树脂催化剂的异丁烯原料转化率比Hβ分子筛催化剂低,Hβ催化作用下异丁烯转化率可以达到88%。With the help of a fixed bed unit, the effects of three types of catalysts(solid phosphoric acid catalyst, acidic ion exchange resin catalyst and modified molecular sieve catalyst) on the reaction of isobutylene oligomerization are studied. The experimental results show that the solid phosphoric acid catalyst is much suitable for the production of C8 olefins, while the acidic cationic resin catalyst and the modified molecular sieve catalyst(Hβ) are suitable for the production of C12 olefins. Since the oligomerization product of C8-C16(clean fuel oil) is free of aromatic hydrocarbons and sulfur-free, it owns great potential to be utilized widely in petrochemical industry. It also demonstrates that the selectivity of all the three catalysts can reach 100% when under optimal conditions. However the conversion of isobutylene of solid phosphoric acid catalyst and acidic ion resin catalyst is much lower than that of the modified molecular sieve catalyst. The largest conversion of isobutene is 88% when the Hβ is used in the isobutylene oligomerization.

关 键 词：异丁烯 齐聚 固体磷酸 树脂 分子筛 

分 类 号：TQ032.4[化学工程]