Breaking the equilibrium at the interface: microwave-assisted reactive distillation (MARD)
Li, Hong1; Meng, Ying1; Shu, Dandan1; Zhao, Zhenyu1; Yang, Yongjin2; Zhang, Jinsong2; Li, Xingang1; Fan, Xiaolei3; Gao, Xin1,3
Corresponding AuthorFan, Xiaolei( ; Gao, Xin(
AbstractMicrowave 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.
Funding OrganizationNational Natural Science Foundation of China ; Royal Society International Exchange Award ; China Scholarship Council (CSC)
Indexed BySCI
Funding ProjectNational Natural Science Foundation of China[21878219] ; Royal Society International Exchange Award[IE161344] ; China Scholarship Council (CSC)[201706255020]
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Engineering, Chemical
WOS IDWOS:000462538400013
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Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorFan, Xiaolei; Gao, Xin
Affiliation1.Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Natl Engn Res Ctr Distillat Technol, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
3.Univ Manchester, Sch Chem Engn & Analyt Sci, Oxford Rd, Manchester M13 9PL, Lancs, England
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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