Improvement of product distribution through enhanced mass transfer in isobutane/butene alkylation
文献类型：期刊论文
| 作者 | Zhao, Yu1,2; Li, Tao1; Meng, Xiangzhan3; Wang, Hongyan2; Zhang, Yongqiang2,3; Wang, Hui2; Zhang, Suojiang2 |
| 刊名 | CHEMICAL ENGINEERING RESEARCH & DESIGN
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 143页码:190-200 |
| 关键词 | C4 alkylation Ionic surfactant Product distribution Enhanced mass transfer |
| ISSN号 | 0263-8762 |
| DOI | 10.1016/j.cherd.2018.12.014 |
| 英文摘要 | The isobutane/butene alkylation catalyzed by H2SO4 is a liquid/liquid reaction, and the limited solubility of the hydrocarbon in the catalyst inhibits mass transfer, leading to occurrence of side reactions. Amphiphilic surfactant could enhance mass transfer in multiphasic systems. In this study, a series of quaternary ammonium and phosphonium surfactants were used as the additive to enhance the catalytic performance of H2SO4 for isobutane/butene alkylation. Ammonium surfactants showed much better activity to improve product distribution than the phosphonium one. The enhanced product distribution and alkylate quality were attributed to the well dispersion of the hydrocarbon in the acid and increased hydrocarbon solubility in the catalytic system, i.e., enhanced mass transfer in the reaction system. The reaction parameters were optimized, and under these conditions, weight percentage of C8 in the product was 87.5%, and research octane number (RON) of the alkylate could reach 97.8. Lifetime of the surfactant/H2SO4 system was 130 times compared with 51 times for the system with no additive due to inhibition of the formation of acid soluble oil (i.e., products of side reactions). This proposed catalytic system with the ammonium surfactant as the additive is promising to be employed in industrial C4 alkylation process. (C) 2019 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved. |
| WOS关键词 | SULFURIC-ACID ; 2-BUTENE ; OLEFINS ; CATALYST ; INHIBITION ; VARIABLES ; CORROSION ; QUALITY ; SALTS |
| 资助项目 | National Basic Research Program of China (973 Program)[2015CB251401] ; National Natural Science Foundation of China[21603232] ; National Natural Science Foundation of China[21676270] ; CAS ; CAS/SAFEA International Partnership Program for Creative Research Teams[20140491518] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000461269100018 |
| 出版者 | INST CHEMICAL ENGINEERS |
| 资助机构 | National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China ; CAS ; CAS/SAFEA International Partnership Program for Creative Research Teams |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/28320]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wang, Hui; Zhang, Suojiang |
| 作者单位 | 1.Zhengzhou Univ, Sch Chem Engn & Energy, Zhengzhou 450001, Henan, Peoples R China 2.Chinese Acad Sci, State Key Lab Multiphase Complex Syst Inst Proc E, CAS Key Lab Green Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Yu,Li, Tao,Meng, Xiangzhan,et al. Improvement of product distribution through enhanced mass transfer in isobutane/butene alkylation[J]. CHEMICAL ENGINEERING RESEARCH & DESIGN,2019,143:190-200. |
| APA | Zhao, Yu.,Li, Tao.,Meng, Xiangzhan.,Wang, Hongyan.,Zhang, Yongqiang.,...&Zhang, Suojiang.(2019).Improvement of product distribution through enhanced mass transfer in isobutane/butene alkylation.CHEMICAL ENGINEERING RESEARCH & DESIGN,143,190-200. |
| MLA | Zhao, Yu,et al."Improvement of product distribution through enhanced mass transfer in isobutane/butene alkylation".CHEMICAL ENGINEERING RESEARCH & DESIGN 143(2019):190-200. |
入库方式： OAI收割
来源：过程工程研究所
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