Enhanced catalytic activity of Sm/CeO2 to produce gasoline-range hydrocarbons from pyrolysis of spent coffee grounds
This study investigated the application of Sm/CeO2 catalyst for hydrocarbon production in catalytic pyrolysis (CP) of spent coffee grounds (SCGs). A temperature range of 450–750 °C and catalyst/biomass (C/B) ratios of 0.5–4 were employed in the CP. The results showed that an increase in pyrolysis te...
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| Format: | Article |
| Language: | English |
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Elsevier
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/113424/ http://psasir.upm.edu.my/id/eprint/113424/1/113424.pdf |
| _version_ | 1848866219417927680 |
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| author | Kassa Dada, Tewodros Kumar, Ravinder Rashid, Umer Somasundaram, Murugavelh Antunes, Elsa |
| author_facet | Kassa Dada, Tewodros Kumar, Ravinder Rashid, Umer Somasundaram, Murugavelh Antunes, Elsa |
| author_sort | Kassa Dada, Tewodros |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This study investigated the application of Sm/CeO2 catalyst for hydrocarbon production in catalytic pyrolysis (CP) of spent coffee grounds (SCGs). A temperature range of 450–750 °C and catalyst/biomass (C/B) ratios of 0.5–4 were employed in the CP. The results showed that an increase in pyrolysis temperature consistently increased the quantity of hydrocarbons and considerably decreased the oxygenated compounds like acids and phenols. At temperatures of 450 and 550 °C, C/B ratios of 2 or 1 generated the maximum amount of hydrocarbons. At 650 and 750 °C temperatures, C/B ratios of 0.5 and 1 were capable to achieve a higher content of hydrocarbons in bio-oils, suggesting the synergistic effect of temperature and catalyst activity. The hydrocarbons in bio-oils were found in the gasoline range, mainly containing benzene, toluene, ethylbenzene, xylene (BTEX), olefins, and cycloalkenes. Primary reactions involved to convert oxygenated compounds into hydrocarbons were dehydration, decarboxylation, decarbonylation, dehydrogenation, isomerization, and aromatization reactions. |
| first_indexed | 2025-11-15T14:17:07Z |
| format | Article |
| id | upm-113424 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:17:07Z |
| publishDate | 2024 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1134242024-11-25T02:18:17Z http://psasir.upm.edu.my/id/eprint/113424/ Enhanced catalytic activity of Sm/CeO2 to produce gasoline-range hydrocarbons from pyrolysis of spent coffee grounds Kassa Dada, Tewodros Kumar, Ravinder Rashid, Umer Somasundaram, Murugavelh Antunes, Elsa This study investigated the application of Sm/CeO2 catalyst for hydrocarbon production in catalytic pyrolysis (CP) of spent coffee grounds (SCGs). A temperature range of 450–750 °C and catalyst/biomass (C/B) ratios of 0.5–4 were employed in the CP. The results showed that an increase in pyrolysis temperature consistently increased the quantity of hydrocarbons and considerably decreased the oxygenated compounds like acids and phenols. At temperatures of 450 and 550 °C, C/B ratios of 2 or 1 generated the maximum amount of hydrocarbons. At 650 and 750 °C temperatures, C/B ratios of 0.5 and 1 were capable to achieve a higher content of hydrocarbons in bio-oils, suggesting the synergistic effect of temperature and catalyst activity. The hydrocarbons in bio-oils were found in the gasoline range, mainly containing benzene, toluene, ethylbenzene, xylene (BTEX), olefins, and cycloalkenes. Primary reactions involved to convert oxygenated compounds into hydrocarbons were dehydration, decarboxylation, decarbonylation, dehydrogenation, isomerization, and aromatization reactions. Elsevier 2024 Article PeerReviewed text en cc_by_4 http://psasir.upm.edu.my/id/eprint/113424/1/113424.pdf Kassa Dada, Tewodros and Kumar, Ravinder and Rashid, Umer and Somasundaram, Murugavelh and Antunes, Elsa (2024) Enhanced catalytic activity of Sm/CeO2 to produce gasoline-range hydrocarbons from pyrolysis of spent coffee grounds. Journal of the Energy Institute, 115. art. no. 101663. pp. 1-9. ISSN 1743-9671; eISSN: 1746-0220 https://linkinghub.elsevier.com/retrieve/pii/S1743967124001417 10.1016/j.joei.2024.101663 |
| spellingShingle | Kassa Dada, Tewodros Kumar, Ravinder Rashid, Umer Somasundaram, Murugavelh Antunes, Elsa Enhanced catalytic activity of Sm/CeO2 to produce gasoline-range hydrocarbons from pyrolysis of spent coffee grounds |
| title | Enhanced catalytic activity of Sm/CeO2 to produce gasoline-range hydrocarbons from pyrolysis of spent coffee grounds |
| title_full | Enhanced catalytic activity of Sm/CeO2 to produce gasoline-range hydrocarbons from pyrolysis of spent coffee grounds |
| title_fullStr | Enhanced catalytic activity of Sm/CeO2 to produce gasoline-range hydrocarbons from pyrolysis of spent coffee grounds |
| title_full_unstemmed | Enhanced catalytic activity of Sm/CeO2 to produce gasoline-range hydrocarbons from pyrolysis of spent coffee grounds |
| title_short | Enhanced catalytic activity of Sm/CeO2 to produce gasoline-range hydrocarbons from pyrolysis of spent coffee grounds |
| title_sort | enhanced catalytic activity of sm/ceo2 to produce gasoline-range hydrocarbons from pyrolysis of spent coffee grounds |
| url | http://psasir.upm.edu.my/id/eprint/113424/ http://psasir.upm.edu.my/id/eprint/113424/ http://psasir.upm.edu.my/id/eprint/113424/ http://psasir.upm.edu.my/id/eprint/113424/1/113424.pdf |