Insight into the influence of rare-earth promoter (CeO2, La2O3, Y2O3, and Sm2O3) addition toward methane dry reforming over Co/mesoporous alumina catalysts
Co/mesoporous alumina (MA) catalysts promoted with Ce, La, Sm, and Y were evaluated via methane dry reforming. Co particle dispersion on MA was evidently improved after promoter incorporation, resulting in smaller crystallite size and lesser Co agglomeration. Unlike Ce and La promoters, the employme...
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my.utm.913002021-06-30T12:07:30Z http://eprints.utm.my/id/eprint/91300/ Insight into the influence of rare-earth promoter (CeO2, La2O3, Y2O3, and Sm2O3) addition toward methane dry reforming over Co/mesoporous alumina catalysts Bahari, Mahadi B. Setiabudi, Herma Dina Nguyen, Trinh Duy Phuong, Pham T. T. Truong, Quang Duc Abdul Jalil, Aishah Razali, Nurul Aini Vo, Dai Viet N. TP Chemical technology Co/mesoporous alumina (MA) catalysts promoted with Ce, La, Sm, and Y were evaluated via methane dry reforming. Co particle dispersion on MA was evidently improved after promoter incorporation, resulting in smaller crystallite size and lesser Co agglomeration. Unlike Ce and La promoters, the employment of Y and Sm promoters reduced catalyst reducibility by strengthening Co-MA interaction. The reactant conversions improved in the order of YCo/MA > LaCo/MA > CeCo/MA > SmCo/MA > Co/MA, while the amount of carbon deposit was recorded with the sequence of Co/MA > SmCo/MA > LaCo/MA > CeCo/MA > YCo/MA. Additionally, YCo/MA attained the highest activity (CH4 conversion = 85.8%, CO2 conversion = 92.2%) and possessed the lowest carbon deposition (7.02%) due to great Co dispersion, small Co particle size with strong Co-MA interaction and higher oxygen storage capacity. H2/CO ratios were obtained within 0.78–0.86, slightly lower than 1 in consequence of the reverse water–gas shift. Elsevier Ltd 2020-12-31 Article PeerReviewed Bahari, Mahadi B. and Setiabudi, Herma Dina and Nguyen, Trinh Duy and Phuong, Pham T. T. and Truong, Quang Duc and Abdul Jalil, Aishah and Razali, Nurul Aini and Vo, Dai Viet N. (2020) Insight into the influence of rare-earth promoter (CeO2, La2O3, Y2O3, and Sm2O3) addition toward methane dry reforming over Co/mesoporous alumina catalysts. Chemical Engineering Science, 228 . ISSN 0009-2509 http://dx.doi.org/10.1016/j.ces.2020.115967 DOI:10.1016/j.ces.2020.115967 |
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TP Chemical technology Bahari, Mahadi B. Setiabudi, Herma Dina Nguyen, Trinh Duy Phuong, Pham T. T. Truong, Quang Duc Abdul Jalil, Aishah Razali, Nurul Aini Vo, Dai Viet N. Insight into the influence of rare-earth promoter (CeO2, La2O3, Y2O3, and Sm2O3) addition toward methane dry reforming over Co/mesoporous alumina catalysts |
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Co/mesoporous alumina (MA) catalysts promoted with Ce, La, Sm, and Y were evaluated via methane dry reforming. Co particle dispersion on MA was evidently improved after promoter incorporation, resulting in smaller crystallite size and lesser Co agglomeration. Unlike Ce and La promoters, the employment of Y and Sm promoters reduced catalyst reducibility by strengthening Co-MA interaction. The reactant conversions improved in the order of YCo/MA > LaCo/MA > CeCo/MA > SmCo/MA > Co/MA, while the amount of carbon deposit was recorded with the sequence of Co/MA > SmCo/MA > LaCo/MA > CeCo/MA > YCo/MA. Additionally, YCo/MA attained the highest activity (CH4 conversion = 85.8%, CO2 conversion = 92.2%) and possessed the lowest carbon deposition (7.02%) due to great Co dispersion, small Co particle size with strong Co-MA interaction and higher oxygen storage capacity. H2/CO ratios were obtained within 0.78–0.86, slightly lower than 1 in consequence of the reverse water–gas shift. |
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Article |
author |
Bahari, Mahadi B. Setiabudi, Herma Dina Nguyen, Trinh Duy Phuong, Pham T. T. Truong, Quang Duc Abdul Jalil, Aishah Razali, Nurul Aini Vo, Dai Viet N. |
author_facet |
Bahari, Mahadi B. Setiabudi, Herma Dina Nguyen, Trinh Duy Phuong, Pham T. T. Truong, Quang Duc Abdul Jalil, Aishah Razali, Nurul Aini Vo, Dai Viet N. |
author_sort |
Bahari, Mahadi B. |
title |
Insight into the influence of rare-earth promoter (CeO2, La2O3, Y2O3, and Sm2O3) addition toward methane dry reforming over Co/mesoporous alumina catalysts |
title_short |
Insight into the influence of rare-earth promoter (CeO2, La2O3, Y2O3, and Sm2O3) addition toward methane dry reforming over Co/mesoporous alumina catalysts |
title_full |
Insight into the influence of rare-earth promoter (CeO2, La2O3, Y2O3, and Sm2O3) addition toward methane dry reforming over Co/mesoporous alumina catalysts |
title_fullStr |
Insight into the influence of rare-earth promoter (CeO2, La2O3, Y2O3, and Sm2O3) addition toward methane dry reforming over Co/mesoporous alumina catalysts |
title_full_unstemmed |
Insight into the influence of rare-earth promoter (CeO2, La2O3, Y2O3, and Sm2O3) addition toward methane dry reforming over Co/mesoporous alumina catalysts |
title_sort |
insight into the influence of rare-earth promoter (ceo2, la2o3, y2o3, and sm2o3) addition toward methane dry reforming over co/mesoporous alumina catalysts |
publisher |
Elsevier Ltd |
publishDate |
2020 |
url |
http://eprints.utm.my/id/eprint/91300/ http://dx.doi.org/10.1016/j.ces.2020.115967 |
_version_ |
1705056694049964032 |