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Comparative Kinetic Analysis and Process Optimization for the Production of Dimethyl Ether via Methanol Dehydration over a γ-Alumina Catalyst

Al-Rabiah, Abdulrahman A. ; Alshehri, Abdulelah S. ; Ibn Idriss, Arimiyawo and Abdelaziz, Omar Y. LU (2022) In Chemical Engineering & Technology 45(2). p.319-328
Abstract
Various kinetic models of methanol dehydration to dimethyl ether over a commercial γ-alumina catalyst were compared with a view to selecting the most appropriate model as a basis for process optimization. To achieve significant improvements in the conventional design, the Berčič-and-Levec kinetic model was employed and process intensification was applied to develop a more energy-efficient process, by enhancing the adiabatic reactor performance and maximizing the heat recovery from the highly exothermic reactor. The single-pass conversion of methanol was increased to 83 %, with an inlet temperature of 217 °C to the adiabatic reactor. Application of process intensification resulted in an improved flowsheet, which reduced the total energy... (More)
Various kinetic models of methanol dehydration to dimethyl ether over a commercial γ-alumina catalyst were compared with a view to selecting the most appropriate model as a basis for process optimization. To achieve significant improvements in the conventional design, the Berčič-and-Levec kinetic model was employed and process intensification was applied to develop a more energy-efficient process, by enhancing the adiabatic reactor performance and maximizing the heat recovery from the highly exothermic reactor. The single-pass conversion of methanol was increased to 83 %, with an inlet temperature of 217 °C to the adiabatic reactor. Application of process intensification resulted in an improved flowsheet, which reduced the total energy requirements by 59.3 % and cut the CO2 emissions by 60.8 %. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Dimethyl ether, Kinetics, Methanol dehydration, Process optimization, Process simulation
in
Chemical Engineering & Technology
volume
45
issue
2
pages
10 pages
publisher
John Wiley & Sons Inc.
external identifiers
  • scopus:85122677162
ISSN
1521-4125
DOI
10.1002/ceat.202100441
language
English
LU publication?
yes
id
c2812ccf-22a4-4f90-853c-263f25309810
date added to LUP
2022-01-27 09:51:56
date last changed
2023-12-10 08:14:10
@article{c2812ccf-22a4-4f90-853c-263f25309810,
  abstract     = {{Various kinetic models of methanol dehydration to dimethyl ether over a commercial γ-alumina catalyst were compared with a view to selecting the most appropriate model as a basis for process optimization. To achieve significant improvements in the conventional design, the Berčič-and-Levec kinetic model was employed and process intensification was applied to develop a more energy-efficient process, by enhancing the adiabatic reactor performance and maximizing the heat recovery from the highly exothermic reactor. The single-pass conversion of methanol was increased to 83 %, with an inlet temperature of 217 °C to the adiabatic reactor. Application of process intensification resulted in an improved flowsheet, which reduced the total energy requirements by 59.3 % and cut the CO2 emissions by 60.8 %.}},
  author       = {{Al-Rabiah, Abdulrahman A. and Alshehri, Abdulelah S. and Ibn Idriss, Arimiyawo and Abdelaziz, Omar Y.}},
  issn         = {{1521-4125}},
  keywords     = {{Dimethyl ether; Kinetics; Methanol dehydration; Process optimization; Process simulation}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{319--328}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Chemical Engineering & Technology}},
  title        = {{Comparative Kinetic Analysis and Process Optimization for the Production of Dimethyl Ether via Methanol Dehydration over a γ-Alumina Catalyst}},
  url          = {{http://dx.doi.org/10.1002/ceat.202100441}},
  doi          = {{10.1002/ceat.202100441}},
  volume       = {{45}},
  year         = {{2022}},
}