An insight of CO 2 hydrogenation to methanol synthesis: Thermodynamics, catalysts, operating parameters, and reaction mechanism

International Journal of Energy ResearchVolume 46, Issue 5 p. 5503-5522 REVIEW PAPER An insight of CO2 hydrogenation to methanol synthesis: Thermodynamics, catalysts, operating parameters, and reaction mechanism Suresh Kanuri, Suresh Kanuri orcid.org/0000-0001-7862-5404 Department of Chemical Engineering, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, IndiaSearch for more papers by this authorSounak Roy, Sounak Roy Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, IndiaSearch for more papers by this authorChanchal Chakraborty, Chanchal Chakraborty Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, IndiaSearch for more papers by this authorSantanu Prasad Datta, Santanu Prasad Datta orcid.org/0000-0001-6657-9594 Department of Mechanical Engineering, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, IndiaSearch for more papers by this authorSatyapaul A. Singh, Corresponding Author Satyapaul A. Singh [email protected] Department of Chemical Engineering, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, India Correspondence Satyapaul A. Singh and Srikanta Dinda, Department of Chemical Engineering, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India. Email: [email protected] and [email protected]Search for more papers by this authorSrikanta Dinda, Corresponding Author Srikanta Dinda [email protected] orcid.org/0000-0001-5566-1891 Department of Chemical Engineering, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, India Correspondence Satyapaul A. Singh and Srikanta Dinda, Department of Chemical Engineering, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India. Email: [email protected] and [email protected]Search for more papers by this author Suresh Kanuri, Suresh Kanuri orcid.org/0000-0001-7862-5404 Department of Chemical Engineering, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, IndiaSearch for more papers by this authorSounak Roy, Sounak Roy Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, IndiaSearch for more papers by this authorChanchal Chakraborty, Chanchal Chakraborty Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, IndiaSearch for more papers by this authorSantanu Prasad Datta, Santanu Prasad Datta orcid.org/0000-0001-6657-9594 Department of Mechanical Engineering, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, IndiaSearch for more papers by this authorSatyapaul A. Singh, Corresponding Author Satyapaul A. Singh [email protected] Department of Chemical Engineering, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, India Correspondence Satyapaul A. Singh and Srikanta Dinda, Department of Chemical Engineering, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India. Email: [email protected] and [email protected]Search for more papers by this authorSrikanta Dinda, Corresponding Author Srikanta Dinda [email protected] orcid.org/0000-0001-5566-1891 Department of Chemical Engineering, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, India Correspondence Satyapaul A. Singh and Srikanta Dinda, Department of Chemical Engineering, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad, Telangana 500078, India. Email: [email protected] and [email protected]Search for more papers by this author First published: 14 December 2021 https://doi.org/10.1002/er.7562Citations: 3Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Summary Catalytic hydrogenation of CO2 to methanol is an exciting avenue to curb the rising CO2 emissions and generate renewable energy or value-added products. Methanol synthesis via the thermal catalysis route gets increasing emphasis due to its fast kinetics and flexible combination of active components. In the last decade, many studies on CO2 hydrogenation to methanol have been reported with different kinds of catalysts that have been synthesized and characterized using state-of-the-art surface science tools and techniques. In situ analysis techniques as well as theoretical (eg, density functional theory, Monte Carlo simulations, and Micro-Kinetics modeling) studies have been performed to understand the insights of morphology changes, the interaction of active sites, and the formation of intermediate species under the reaction conditions. In the present review, the advancements on CO2 to methanol via hydrogenation route have been presented taking into consideration different perspectives spanning across thermodynamic aspects, the influence of reaction temperature, pressure, feed composition, space-velocity, and morphologically tuned novel catalyst on CO2 conversion and methanol selectivity. Among the reported catalysts, the Al2O3-supported Cu-Zn catalyst showed better performance with 25% CO2 conversion and 73% methanol selectivity at 170°C and 50 bar pressure. The CeO2-supported Pd-Zn catalyst showed 14% CO2 conversion and 97% methanol selectivity at 220°C under 20 bar pressure. Also, CeO2-nanorods supported Cu-Ni catalyst showed good performance at 260°C and 30 bars, with around 18% CO2 conversion and 73% methanol selectivity. Additionally, the mechanistic insights of the process are emphasized with necessary figures and diagrams. The rate-determining steps for each mechanism are also highlighted with chemical structures for further clarity. This review also summarizes potential catalysts and their optimum operating conditions to achieve maximum CO2 conversion and methanol selectivity. We believe, the review is unique and not found in any article which addressed the above aspects altogether in a compact form. CONFLICT OF INTEREST The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this manuscript. Citing Literature Volume46, Issue5April 2022Pages 5503-5522 RelatedInformation