Thermodynamic and experimental explorations of CO2 methanation over highly active metal-free fibrous silica-beta zeolite (FS@SiO2-BEA) of innovative morphology
CO2 methanation is a novel way for climate change mitigation by converting CO2 into substitute natural gas. In this study, a highly active fibrous silica-beta zeolite (FS@SiO2-BEA) catalyst was prepared for CO2 methanation by a microemulsion process, and examined by N2 adsorption–desorption, field e...
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my.utm.960752022-07-03T07:27:19Z http://eprints.utm.my/id/eprint/96075/ Thermodynamic and experimental explorations of CO2 methanation over highly active metal-free fibrous silica-beta zeolite (FS@SiO2-BEA) of innovative morphology Hussain, I. Jalil, A. A. Izan, S. M. Azami, M. Kidam, K. Ainirazali, N. Ripin, A. TP Chemical technology CO2 methanation is a novel way for climate change mitigation by converting CO2 into substitute natural gas. In this study, a highly active fibrous silica-beta zeolite (FS@SiO2-BEA) catalyst was prepared for CO2 methanation by a microemulsion process, and examined by N2 adsorption–desorption, field emission scanning electron microscope (FESEM), transmission electron microscopy (TEM), and electron spin resonance (ESR) spectroscopy techniques. It was found that the FS@SiO2-BEA catalyst possessed a fibrous silica morphology, leading to high surface area (609 m2/g), oxygen vacancies, and basicity. A thermodynamic study was also carried out using Gibbs free energy minimization method, and it was found that low temperatures (25–350 °C) and high H2: CO2 = 4 ratios have enhanced the CO2 methanation activity. The prepared FS@SiO2-BEA catalyst exhibited high CO2 conversion (65%), and CH4 selectivity (61%) with a space–time yield of 3.30 g gcat-1 h-1. The obtained experimental results highly followed the thermodynamic calculations. Elsevier Ltd 2021 Article PeerReviewed Hussain, I. and Jalil, A. A. and Izan, S. M. and Azami, M. and Kidam, K. and Ainirazali, N. and Ripin, A. (2021) Thermodynamic and experimental explorations of CO2 methanation over highly active metal-free fibrous silica-beta zeolite (FS@SiO2-BEA) of innovative morphology. Chemical Engineering Science, 229 . p. 116015. ISSN 0009-2509 http://dx.doi.org/10.1016/j.ces.2020.116015 |
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TP Chemical technology Hussain, I. Jalil, A. A. Izan, S. M. Azami, M. Kidam, K. Ainirazali, N. Ripin, A. Thermodynamic and experimental explorations of CO2 methanation over highly active metal-free fibrous silica-beta zeolite (FS@SiO2-BEA) of innovative morphology |
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CO2 methanation is a novel way for climate change mitigation by converting CO2 into substitute natural gas. In this study, a highly active fibrous silica-beta zeolite (FS@SiO2-BEA) catalyst was prepared for CO2 methanation by a microemulsion process, and examined by N2 adsorption–desorption, field emission scanning electron microscope (FESEM), transmission electron microscopy (TEM), and electron spin resonance (ESR) spectroscopy techniques. It was found that the FS@SiO2-BEA catalyst possessed a fibrous silica morphology, leading to high surface area (609 m2/g), oxygen vacancies, and basicity. A thermodynamic study was also carried out using Gibbs free energy minimization method, and it was found that low temperatures (25–350 °C) and high H2: CO2 = 4 ratios have enhanced the CO2 methanation activity. The prepared FS@SiO2-BEA catalyst exhibited high CO2 conversion (65%), and CH4 selectivity (61%) with a space–time yield of 3.30 g gcat-1 h-1. The obtained experimental results highly followed the thermodynamic calculations. |
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Article |
| author |
Hussain, I. Jalil, A. A. Izan, S. M. Azami, M. Kidam, K. Ainirazali, N. Ripin, A. |
| author_facet |
Hussain, I. Jalil, A. A. Izan, S. M. Azami, M. Kidam, K. Ainirazali, N. Ripin, A. |
| author_sort |
Hussain, I. |
| title |
Thermodynamic and experimental explorations of CO2 methanation over highly active metal-free fibrous silica-beta zeolite (FS@SiO2-BEA) of innovative morphology |
| title_short |
Thermodynamic and experimental explorations of CO2 methanation over highly active metal-free fibrous silica-beta zeolite (FS@SiO2-BEA) of innovative morphology |
| title_full |
Thermodynamic and experimental explorations of CO2 methanation over highly active metal-free fibrous silica-beta zeolite (FS@SiO2-BEA) of innovative morphology |
| title_fullStr |
Thermodynamic and experimental explorations of CO2 methanation over highly active metal-free fibrous silica-beta zeolite (FS@SiO2-BEA) of innovative morphology |
| title_full_unstemmed |
Thermodynamic and experimental explorations of CO2 methanation over highly active metal-free fibrous silica-beta zeolite (FS@SiO2-BEA) of innovative morphology |
| title_sort |
thermodynamic and experimental explorations of co2 methanation over highly active metal-free fibrous silica-beta zeolite (fs@sio2-bea) of innovative morphology |
| publisher |
Elsevier Ltd |
| publishDate |
2021 |
| url |
http://eprints.utm.my/id/eprint/96075/ http://dx.doi.org/10.1016/j.ces.2020.116015 |
| _version_ |
1738510320286040064 |
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13.211869 |