Kamkeng, A.D.N. and Wang, M. orcid.org/0000-0001-9752-270X (2023) Technical analysis of the modified Fischer-Tropsch synthesis process for direct CO2 conversion into gasoline fuel: performance improvement via ex-situ water removal. Chemical Engineering Journal, 462. 142048. ISSN 1385-8947
Abstract
The modified Fischer-Tropsch synthesis (FTS) process is a promising technology for direct CO2 conversion into liquid fuels. However, the low yield of liquid fuels (below 29%) observed during CO2-FTS process is still of great concern for commercial deployment. Therefore, new strategies are needed to improve both CO2 conversion and liquid fuel yield during CO2-FTS process. A steady-state model based on first principles and a modified Anderson-Schulz-Flory (ASF) distribution was developed for the CO2-FTS process to predict gasoline range hydrocarbons (C5-C11). The model was implemented in Aspen Plus® using Fortran® routines and model validation was performed for different H2/CO2 feed ratios. Two process configurations (including a three-stage reactor in series and a single reactor with recycle) were considered for CO2-FTS performance analysis and improvement through ex-situ water removal. Both CO2-FTS process configurations showed significant improvements in CO2 conversion (from 34 to above 70%) with up to 61.0% gasoline yield. Though the single reactor with recycle achieved a higher CO2 conversion and gasoline production rate than the 3-stage reactor in series, the comparative analysis at the same CO2 conversion of 71.5% revealed that both process configurations have a similar process efficiency of roughly 66.4%.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Authors. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Keywords: | CO2 utilisation; Modified Fischer-Tropsch synthesis; Gasoline; Water removal; Modelling and simulation |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Chemical and Biological Engineering (Sheffield) |
Funding Information: | Funder Grant number EUROPEAN COMMISSION - HORIZON 2020 101007963 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 22 Mar 2023 11:31 |
Last Modified: | 22 Mar 2023 11:31 |
Status: | Published |
Publisher: | Elsevier BV |
Refereed: | Yes |
Identification Number: | 10.1016/j.cej.2023.142048 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:197558 |