| 铂锡催化剂用于混合低碳烷烃脱氢生产异丁烯 |
| |
| 引用本文： | 王延臻,王鹏成,段红玲,宋春敏,孟杨,董艳丽.铂锡催化剂用于混合低碳烷烃脱氢生产异丁烯[J].化工学报,2011,62(11):3143-3148. |
| |
| 作者姓名： | 王延臻 王鹏成 段红玲 宋春敏 孟杨 董艳丽 |
| |
| 作者单位： | 中国石油大学（华东）重质油国家重点实验室 |
| |
| 摘 要： | 采用炼厂异丁烷塔顶轻组分作为原料，运用Pt-Sn/Al2O3为脱氢催化剂生产异丁烯。通过制备不同的铂锡催化剂考察影响催化剂性能的各种因素。结果表明，异丁烷的转化率随着Pt含量的增加先增大后减小，在0.40%左右达到最大值，反应8 h后仍然保持在35%以上，同时异丁烯的收率也能保持在22%以上。异丁烷的转化率和异丁烯的选择性均随Pt/Sn原子比的增大呈现先增大后减小的趋势，并且在Pt/Sn原子比为2∶3时，异丁烯的收率达到最大，反应8 h后仍能达到26%以上。通过碱溶电位滴定法分析催化剂中的氯含量，研究了氯含量与催化剂性能的关系。结果表明，随着氯含量增大，异丁烷的转化率不断上升，而异丁烯的选择性不断下降。综合考虑异丁烯的收率和转化率及选择性，催化剂中氯含量为
|
| 关 键 词： | 铂锡催化剂 低碳烷烃 脱氢 异丁烯 |
Platinum-tin catalysts for dehydrogenation of mixed low hydrocarbons into isobutene |
| |
| WANG Yanzhen,WANG Pengcheng,DUAN Hongling,SONG Chunmin,MENG Yang,DONG Yanli.Platinum-tin catalysts for dehydrogenation of mixed low hydrocarbons into isobutene[J].Journal of Chemical Industry and Engineering(China),2011,62(11):3143-3148. |
| |
| Authors: | WANG Yanzhen WANG Pengcheng DUAN Hongling SONG Chunmin MENG Yang DONG Yanli |
| |
| Affiliation: | WANG Yanzhen,WANG Pengcheng,DUAN Hongling,SONG Chunmin,MENG Yang,DONG Yanli (State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Qingdao 266555,Shandong,China) |
| |
| Abstract: | Nowadays,most of the isobutene was obtained as a by-product from both thermal and catalytic cracking processes.Due to growing of demand,butane dehydrogenation to produce isobutene is a valuable process in petrochemical industry.Traditionally,high purity isobutane is used as feedstock for producing isobutene,in which purification process is complex and cost high.In this paper the dehydrogenation process using mixed low hydrocarbons as raw material to produce isobutene was studied over Pt-Sn/Al2O3 catalyst,an... |
| |
| Keywords: | platinum-tin catalyst low hydrocarbons dehydrogenation isobutene |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《化工学报》浏览原始摘要信息 |
|
点击此处可从《化工学报》下载全文 |
|
