University of Oulu

Nieminen, H., Maksimov, P., Laari, A., Väisänen, V., Vuokila, A., Huuhtanen, M., & Koiranen, T. (2022). Process modelling and feasibility study of sorption-enhanced methanol synthesis. Chemical Engineering and Processing - Process Intensification, 179, 109052.

Process modelling and feasibility study of sorption-enhanced methanol synthesis

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Author: Nieminen, Harri1; Maksimov, Pavel1; Laari, Arto1;
Organizations: 1LUT university, LUT School of Engineering Science, P.O. Box 20, FI-53851 Lappeenranta, Finland
2University of Oulu, Environmental and Chemical Engineering, P.O. Box 4300, FI-90014 University of Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.6 MB)
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Language: English
Published: Elsevier, 2022
Publish Date: 2022-10-12


A sorption-enhanced process for hydrogenation of CO₂ to methanol was designed and investigated by mathematical modelling and techno-economic analysis. The modelling methodology combined dynamic modelling of the cyclic reactor operation with pseudo-steady state modelling of the overall process. With continuous adsorption of water in the sorption-enhanced process, highly pure methanol (>99%) was produced without downstream distillation. The dynamic reactor cycle was designed and optimized to maximize the methanol production rate. The cycle and the process were modelled in two reactor configurations: adiabatic and isothermal. Under the default cost assumptions for the raw materials (CO₂ 50 €/t, hydrogen 3000 €/t) the adiabatic configuration was found more competitive in terms of the overall methanol production cost, at 1085 €/t compared to 1255 €/t for the isothermal case. The cost estimate for the adiabatic case was found comparable to a reference process representing conventional CO₂ hydrogenation to methanol (1089 €/t). In addition to the methanol process, the developed modeling method has potential in the design of other sorption-enhanced processes.

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Series: Chemical engineering and processing
ISSN: 0255-2701
ISSN-E: 1873-3204
ISSN-L: 0255-2701
Volume: 179
Article number: 109052
DOI: 10.1016/j.cep.2022.109052
Type of Publication: A1 Journal article – refereed
Field of Science: 218 Environmental engineering
215 Chemical engineering
Funding: The work was mostly performed under the P2XEnable collaboration project primarily funded by Business Finland.
Copyright information: © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.