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学科主题: 物理化学
题名: Highly efficient synthesis of cyclic carbonate with CO2 catalyzed by ionic liquid in a microreactor
作者: Zhao, Yuchao1;  Yao, Chaoqun1;  Chen, Guangwen1;  Yuan, Quan1
通讯作者: 陈光文
刊名: GREEN CHEMISTRY
发表日期: 2013
DOI: 10.1039/c2gc36612f
卷: 15, 期:2, 页:446-452
收录类别: SCI
文章类型: Article
部门归属: DNL09
项目归属: DNL0903
产权排名: 1,1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: The development of highly efficient processes for the cycloaddition of CO2 with epoxides to produce five-membered cyclic carbonates is a very attractive topic. In this work, the cycloaddition of propylene oxide (PO) and CO2 to give propylene carbonate (PC) is studied in a microreactor using a HETBAB ionic liquid catalyst. The microreactor performance is evaluated by studying the effects of different operating conditions, including reaction temperature, operating pressure, residence time, molar ratio of CO2/PO, and the catalyst concentration in PO. The process characteristics of the reaction concerning the gas-liquid mass transfer and the intrinsic kinetics perspectives are discussed. The results show that the residence time can be dramatically reduced from several hours in a conventional stirred reactor to about 10 s in a microreactor. The yield of PC at 3.5 MPa can reach 99.8% at a residence time of 14 s. The turnover frequency (TOF) value varies in the range of 3000 to 14 000 h(-1) compared to 60 h(-1) in the conventional stirred reactor. The space time yield (STY) or the overall reaction rate ranges from 650 to 4500 g(prod.) (g(cat.) h)(-1), which is much larger than the value [ca. 19 g(prod.) (g(cat.) h)(-1)] for the conventional stirred reactor. To some extent, the present study has also demonstrated the concept of 'Novel Process Windows'.
关键词[WOS]: MASS-TRANSFER CHARACTERISTICS ;  MICROCHANNEL REACTOR ;  CHEMICAL FIXATION ;  PROPYLENE-OXIDE ;  PROCESS WINDOWS ;  FLOW ;  CYCLOADDITION ;  DIOXIDE ;  HYDROGENATION ;  TEMPERATURE
语种: 英语
WOS记录号: WOS:000314185900022
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117643
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

Recommended Citation:
Zhao, Yuchao,Yao, Chaoqun,Chen, Guangwen,et al. Highly efficient synthesis of cyclic carbonate with CO2 catalyzed by ionic liquid in a microreactor[J]. GREEN CHEMISTRY,2013,15(2):446-452.
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