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现代化工  2018, Vol. 38 Issue (11): 163-167,169    DOI: 10.16606/j.cnki.issn0253-4320.2018.11.035
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
SO42-/ZrO2催化剂上异丁烯叠合反应的研究
牛嘉宇, 宋月芹, 赵基钢, 周晓龙, 葛跃娜
华东理工大学石油加工研究所, 上海 200237
Isobutene oligomerization over SO42-/ZrO2 catalysts
NIU Jia-yu, SONG Yue-qin, ZHAO Ji-gang, ZHOU Xiao-long, GE Yue-na
Petroleum Processing Research Center, East China University of Science and Technology, Shanghai 200237, China
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摘要 固体超强酸SO42-/ZrO2(SZ)可以在低温下催化异丁烯的叠合反应。采用沉淀浸渍法制备了SO42-/ZrO2(SZ)催化剂。考察了液固浸渍质量比和浸渍硫酸浓度对SZ催化异丁烯叠合的影响,并采用XRD、NH3-TPD、TG手段表征了催化剂的晶相结构、酸量和酸强度。结果表明,浸渍液固质量比对SZ催化异丁烯叠合生成分子质量为250~500的聚异丁烯有显著影响,当液固质量比为1时,产物中五聚体及以上的选择性最大。降低硫酸浓度提高了强酸中心数量和单斜晶相比例,使生成异丁烯五聚体以上的性能大大改善。
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牛嘉宇
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周晓龙
葛跃娜
关键词:  SO42-/ZrO2  催化剂  异丁烯  叠合反应    
Abstract: Isobutene oligomerization can be catalyzed by solid superacid SO42-/ZrO2 (SZ) at low temperature.A series of SO42-/ZrO2 (SZ) catalyst samples are prepared through direct precipitation impregnation method.The effects of liquid/solid impregnation ratio and concentration of sulfuric acid on SZ's catalytic performance are studied.The crystalline structure,acid amount and acid strength of the catalysts are characterized by XRD,NH3-TPD and TG.The results indicate that the liquid/solid impregnation ratio has a significant effect on the performance of SZ catalysts in catalyzing isobutene oligomerization.The resulting product has the highest pentamer selectivity when the liquid solid impregnation is 1.Strong acid center amount and monoclinic phase within the catalyst can be increased by lowing the concentration of sulfuric acid,which leads to great improvement of isobutene oligomerization performance of SZ catalysts.
Key words:  SO42-/ZrO2    catalyst    isobutene    oligomerization
收稿日期:  2018-03-13      修回日期:  2018-09-17          
TE624  
通讯作者:  周晓龙(1964-),男,博士,教授,研究方向为重质油的加工和利用及超强酸催化剂的开发和应用,通讯联系人,xiaolong@ecust.edu.cn。    E-mail:  xiaolong@ecust.edu.cn
作者简介:  牛嘉宇(1992-),男,硕士研究生,研究方向为超强酸催化剂的开发和应用,490222346@qq.com
引用本文:    
牛嘉宇, 宋月芹, 赵基钢, 周晓龙, 葛跃娜. SO42-/ZrO2催化剂上异丁烯叠合反应的研究[J]. 现代化工, 2018, 38(11): 163-167,169.
NIU Jia-yu, SONG Yue-qin, ZHAO Ji-gang, ZHOU Xiao-long, GE Yue-na. Isobutene oligomerization over SO42-/ZrO2 catalysts. Modern Chemical Industry, 2018, 38(11): 163-167,169.
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http://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2018.11.035  或          http://www.xdhg.com.cn/CN/Y2018/V38/I11/163
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