Highly efficient synthesis of cyclic carbonate with CO2 catalyzed by ionic liquid in a microreactor

	Highly efficient synthesis of cyclic carbonate with CO2 catalyzed by ionic liquid in a microreactor
	Zhao, Yuchao; Yao, Chaoqun; Chen, Guangwen; Yuan, Quan
刊名	green chemistry
	2013
卷号	15 期号:2 页码:446-452
通讯作者	陈光文
产权排序	1,1
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'.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, multidisciplinary
研究领域[WOS]	chemistry
关键词[WOS]	mass-transfer characteristics ; microchannel reactor ; chemical fixation ; propylene-oxide ; process windows ; flow ; cycloaddition ; dioxide ; hydrogenation ; temperature
收录类别	SCI
语种	英语
WOS记录号	WOS:000314185900022
公开日期	2013-10-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/117643]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	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.
APA	Zhao, Yuchao,Yao, Chaoqun,Chen, Guangwen,&Yuan, Quan.(2013).Highly efficient synthesis of cyclic carbonate with CO2 catalyzed by ionic liquid in a microreactor.green chemistry,15(2),446-452.
MLA	Zhao, Yuchao,et al."Highly efficient synthesis of cyclic carbonate with CO2 catalyzed by ionic liquid in a microreactor".green chemistry 15.2(2013):446-452.