LAPSE:2023.1563
Published Article
LAPSE:2023.1563
A Detailed Process and Techno-Economic Analysis of Methanol Synthesis from H2 and CO2 with Intermediate Condensation Steps
February 21, 2023
In order to increase the typically low equilibrium CO2 conversion to methanol using commercially proven technology, the addition of two intermediate condensation units between reaction steps is evaluated in this work. Detailed process simulations with heat integration and techno-economic analyses of methanol synthesis from green H2 and captured CO2 are presented here, comparing the proposed process with condensation steps with the conventional approach. In the new process, a CO2 single-pass conversion of 53.9% was achieved, which is significantly higher than the conversion of the conventional process (28.5%) and its equilibrium conversion (30.4%). Consequently, the total recycle stream flow was halved, which reduced reactant losses in the purge stream and the compression work of the recycle streams, lowering operating costs by 4.8% (61.2 M€·a−1). In spite of the additional number of heat exchangers and flash drums related to the intermediate condensation units, the fixed investment costs of the improved process decreased by 22.7% (94.5 M€). This was a consequence of the increased reaction rates and lower recycle flows, reducing the required size of the main equipment. Therefore, intermediate condensation steps are beneficial for methanol synthesis from H2/CO2, significantly boosting CO2 single-pass conversion, which consequently reduces both the investment and operating costs.
Record ID
Keywords
CO2 utilization, heat integration, intermediate condensation steps, methanol synthesis, plant simulation, power-to-X, product removal, Technoeconomic Analysis
Subject
Suggested Citation
Lacerda de Oliveira Campos B, John K, Beeskow P, Herrera Delgado K, Pitter S, Dahmen N, Sauer J. A Detailed Process and Techno-Economic Analysis of Methanol Synthesis from H2 and CO2 with Intermediate Condensation Steps. (2023). LAPSE:2023.1563
Author Affiliations
Lacerda de Oliveira Campos B: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany [ORCID]
John K: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
Beeskow P: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
Herrera Delgado K: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany [ORCID]
Pitter S: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany [ORCID]
Dahmen N: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
Sauer J: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany [ORCID]
John K: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
Beeskow P: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
Herrera Delgado K: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany [ORCID]
Pitter S: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany [ORCID]
Dahmen N: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
Sauer J: Institute of Catalysis Research and Technology (IKFT), Karlsruhe Institute of Technology (KIT), Hermann-von Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany [ORCID]
Journal Name
Processes
Volume
10
Issue
8
First Page
1535
Year
2022
Publication Date
2022-08-05
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr10081535, Publication Type: Journal Article
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LAPSE:2023.1563
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doi:10.3390/pr10081535
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Feb 21, 2023
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