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author:

Wang, Xiaoda (Wang, Xiaoda.) [1] | Li, Wenkai (Li, Wenkai.) [2] | Wang, Shiwei (Wang, Shiwei.) [3] | Wang, Qinglian (Wang, Qinglian.) [4] | Li, Ling (Li, Ling.) [5] | Wang, Hongxing (Wang, Hongxing.) [6] | Qiu, Ting (Qiu, Ting.) [7]

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EI CSCD

Abstract:

Producing 2-ethyl-1-hexyl thioglycolate (ETE) via esterification reaction with thioglycolic acid (TGA) aqueous solution as raw material by reactive-separation coupling technology is a promising process intensification method. To choose suitable reactive-separation coupling strategy, the kinetic studies of the esterification of TGA with 2-ethyl-1-hexanol (EHL) were carried out in a batch system. The commercial ion exchange resin was employed as an eco-friendly catalyst. The effects of temperature, catalyst concentration and molar ratio were determined. It was interesting to observe that the equilibrium conversion of TGA increased with the increase of catalyst mass fraction due to the adsorption of product water onto resin surface. The activity-based pseudo-homogeneous (PH), Eley-Rideal (ER) and Langmuir-Hinshelwood-Hougen-Watson (LHHW) models were used to fit the kinetics data of the resin-catalyzed reaction. The models of ER and LHHW performed better than the PH model. The kinetics of the TGA-self-catalyzed reaction was also determined. An activity-based homogeneous kinetics model could well describe this self-catalyzed reaction. These results would be meaningful to the selection and design of an appropriate reaction-separation strategy for the production of ETE, to realize the process intensification. © 2020 Chemical Industry and Engineering Society of China

Keyword:

Catalysis Catalysts Esterification Esters Ion exchange Ion exchange resins Kinetics Molar concentration Molar ratio Reaction kinetics Separation

Community:

  • [ 1 ] [Wang, Xiaoda]Engineering Research Center of Reactive Distillation, Fujian Province University, School of Chemical Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 2 ] [Li, Wenkai]Engineering Research Center of Reactive Distillation, Fujian Province University, School of Chemical Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 3 ] [Wang, Shiwei]Engineering Research Center of Reactive Distillation, Fujian Province University, School of Chemical Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 4 ] [Wang, Qinglian]Engineering Research Center of Reactive Distillation, Fujian Province University, School of Chemical Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 5 ] [Li, Ling]Engineering Research Center of Reactive Distillation, Fujian Province University, School of Chemical Engineering, Fuzhou University, Fuzhou; 350108, China
  • [ 6 ] [Wang, Hongxing]College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin; 300457, China
  • [ 7 ] [Qiu, Ting]Engineering Research Center of Reactive Distillation, Fujian Province University, School of Chemical Engineering, Fuzhou University, Fuzhou; 350108, China

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Source :

Chinese Journal of Chemical Engineering

ISSN: 1004-9541

Year: 2021

Volume: 36

Page: 111-119

3 . 8 9 8

JCR@2021

3 . 7 0 0

JCR@2023

ESI HC Threshold:117

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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