Effective catalysts for hydrogenation of CO2 into lower olefins: A review
Utilizing CO2 as a carbon source to produce high-value compounds, such as light olefins, is one of the most promising approaches to mitigate CO2 emissions. Efficient catalysts are critical for optimizing selectivity and yield of light olefins, which is necessary to make the CO2-to-light olefin proce...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-12-01
|
| Series: | Carbon Capture Science & Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772656824000630 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846128144646406144 |
|---|---|
| author | Chike George Okoye-Chine Christel Olivier Lenge Mbuya Nothando Cynthia Shiba Kabir Opeyemi Otun |
| author_facet | Chike George Okoye-Chine Christel Olivier Lenge Mbuya Nothando Cynthia Shiba Kabir Opeyemi Otun |
| author_sort | Chike George Okoye-Chine |
| collection | DOAJ |
| description | Utilizing CO2 as a carbon source to produce high-value compounds, such as light olefins, is one of the most promising approaches to mitigate CO2 emissions. Efficient catalysts are critical for optimizing selectivity and yield of light olefins, which is necessary to make the CO2-to-light olefin process economically viable. Therefore, this review focused on various Fe-based catalysts and multifunctional catalysts containing zeolite used for producing short-chain olefins via CO2 hydrogenation. There are currently two main strategies to hydrogenate CO2 into light olefins in a single step: the CO2−FTS route and the MeOH-mediated route. The primary objective of the CO2-FT approach is to selectively produce the necessary C2–C4 olefins, with a focus on the coordination of active metals, promoters, and supports to adjust the surface H/C ratio, which is crucial for the formation of C2–C4 olefins. However, obtaining a high productivity of C2–C4 olefins from CO2 hydrogenation requires a significant improvement in activity with inhibiting secondary reactions. Currently, tandem catalysts containing SAPO-34 are currently favoured for the higher production of short-chain olefins from the hydrogenation of CO2, owing to their high oxygen vacancies, zeolite topology, and zeolite acidity. Specifically, In2O3-based formulations are sufficiently promising to get past the drawbacks of traditional iron catalysts. Tandem catalysts with metal oxide In2O3/ZrO2 and SAPO-34 components demonstrated promising results in reducing CO product poisoning. This article describes the latest progress, challenges, and prospects for research concerning CO2 hydrogenation into short-chain olefins using iron-based catalysts and alternative catalysts with multifunctional properties. |
| format | Article |
| id | doaj-art-ee95e8d8716e41c7bb719556a1cb5eda |
| institution | Kabale University |
| issn | 2772-6568 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Carbon Capture Science & Technology |
| spelling | doaj-art-ee95e8d8716e41c7bb719556a1cb5eda2024-12-11T05:58:35ZengElsevierCarbon Capture Science & Technology2772-65682024-12-0113100251Effective catalysts for hydrogenation of CO2 into lower olefins: A reviewChike George Okoye-Chine0Christel Olivier Lenge Mbuya1Nothando Cynthia Shiba2Kabir Opeyemi Otun3Department of Chemical & Life Science Engineering, College of Engineering, Virginia Commonwealth University, West Hall, 601 West Main Street, Richmond, VA 23284, United StatesDepartment of Process and Plant Technology, Brandenburg University of Technology Cottbus-Senftenberg, Cottbus, GermanyDepartment of Chemical Engineering, University of South Africa (UNISA), Florida, Johannesburg, 1710, South AfricaInstitute of Sustainable Energy, Universiti Tenaga Nasional, Selangor, Malaysia; Corresponding author.Utilizing CO2 as a carbon source to produce high-value compounds, such as light olefins, is one of the most promising approaches to mitigate CO2 emissions. Efficient catalysts are critical for optimizing selectivity and yield of light olefins, which is necessary to make the CO2-to-light olefin process economically viable. Therefore, this review focused on various Fe-based catalysts and multifunctional catalysts containing zeolite used for producing short-chain olefins via CO2 hydrogenation. There are currently two main strategies to hydrogenate CO2 into light olefins in a single step: the CO2−FTS route and the MeOH-mediated route. The primary objective of the CO2-FT approach is to selectively produce the necessary C2–C4 olefins, with a focus on the coordination of active metals, promoters, and supports to adjust the surface H/C ratio, which is crucial for the formation of C2–C4 olefins. However, obtaining a high productivity of C2–C4 olefins from CO2 hydrogenation requires a significant improvement in activity with inhibiting secondary reactions. Currently, tandem catalysts containing SAPO-34 are currently favoured for the higher production of short-chain olefins from the hydrogenation of CO2, owing to their high oxygen vacancies, zeolite topology, and zeolite acidity. Specifically, In2O3-based formulations are sufficiently promising to get past the drawbacks of traditional iron catalysts. Tandem catalysts with metal oxide In2O3/ZrO2 and SAPO-34 components demonstrated promising results in reducing CO product poisoning. This article describes the latest progress, challenges, and prospects for research concerning CO2 hydrogenation into short-chain olefins using iron-based catalysts and alternative catalysts with multifunctional properties.http://www.sciencedirect.com/science/article/pii/S2772656824000630CO2 adsorptionCO2 hydrogenationFe-based catalystsShort-chain olefinsTandem catalysts |
| spellingShingle | Chike George Okoye-Chine Christel Olivier Lenge Mbuya Nothando Cynthia Shiba Kabir Opeyemi Otun Effective catalysts for hydrogenation of CO2 into lower olefins: A review Carbon Capture Science & Technology CO2 adsorption CO2 hydrogenation Fe-based catalysts Short-chain olefins Tandem catalysts |
| title | Effective catalysts for hydrogenation of CO2 into lower olefins: A review |
| title_full | Effective catalysts for hydrogenation of CO2 into lower olefins: A review |
| title_fullStr | Effective catalysts for hydrogenation of CO2 into lower olefins: A review |
| title_full_unstemmed | Effective catalysts for hydrogenation of CO2 into lower olefins: A review |
| title_short | Effective catalysts for hydrogenation of CO2 into lower olefins: A review |
| title_sort | effective catalysts for hydrogenation of co2 into lower olefins a review |
| topic | CO2 adsorption CO2 hydrogenation Fe-based catalysts Short-chain olefins Tandem catalysts |
| url | http://www.sciencedirect.com/science/article/pii/S2772656824000630 |
| work_keys_str_mv | AT chikegeorgeokoyechine effectivecatalystsforhydrogenationofco2intolowerolefinsareview AT christelolivierlengembuya effectivecatalystsforhydrogenationofco2intolowerolefinsareview AT nothandocynthiashiba effectivecatalystsforhydrogenationofco2intolowerolefinsareview AT kabiropeyemiotun effectivecatalystsforhydrogenationofco2intolowerolefinsareview |