Breaking the equilibrium at the interface: microwave-assisted reactive distillation (MARD)

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	Breaking the equilibrium at the interface: microwave-assisted reactive distillation (MARD)
	Li, Hong; Meng, Ying; Shu, Dandan; Zhao, Zhenyu; Yang, Yongjin; Zhang, Jinsong; Li, Xingang; Fan, Xiaolei; Gao, Xin
	2019-04-01
Source Publication	REACTION CHEMISTRY & ENGINEERING
ISSN	2058-9883
Volume	4 Issue:4 Pages:688-694
Abstract	Microwave irradiation has shown an intensification effect on reactive distillation. Herein, we report a systematic study of microwave-assisted reactive distillation (MARD) relative to its counterpart by conventional heating, aiming at understanding the intensification mechanism of MARD. Catalytic homogeneous esterification of phthalic anhydride with 2-ethylhexanol for producing dioctyl phthalate (DOP) was studied as the model system, showing the improved performance of MARD in comparison with the system by the conventional heating. However, a comparative study on the effect of the reaction temperature and microwave power density showed that the reaction system was mainly affected by the system temperature, suggesting a dominant thermal effect in MARD. The phase equilibrium of the model system for the different heating methods was investigated, showing an improved water content in the vapour phase promoted by the microwave heating compared to that by the conventional heating. Therefore, the rapid selective heating of the water content at the liquid-vapour interface in MARD caused a change of the relative volatility of the system, facilitating the intensified evaporation of water molecules at the liquid-vapour interface and hence the improved performance.
Indexed By	SCI
Language	英语
WOS ID	WOS:000462538400013
Publisher	ROYAL SOC CHEMISTRY
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.imr.ac.cn/handle/321006/81220
Collection	中国科学院金属研究所
Recommended Citation GB/T 7714	Li, Hong,Meng, Ying,Shu, Dandan,et al. Breaking the equilibrium at the interface: microwave-assisted reactive distillation (MARD)[J]. REACTION CHEMISTRY & ENGINEERING,2019,4(4):688-694.
APA	Li, Hong.,Meng, Ying.,Shu, Dandan.,Zhao, Zhenyu.,Yang, Yongjin.,...&Gao, Xin.(2019).Breaking the equilibrium at the interface: microwave-assisted reactive distillation (MARD).REACTION CHEMISTRY & ENGINEERING,4(4),688-694.
MLA	Li, Hong,et al."Breaking the equilibrium at the interface: microwave-assisted reactive distillation (MARD)".REACTION CHEMISTRY & ENGINEERING 4.4(2019):688-694.

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