Sorption-enhanced steam gasification of fine coal waste for fuel producing
Improving the quality of syngas from fine coal waste using the sorption-enhanced gasification process is a novel technology in the production of H2. The effect of CaO on CO2 absorption and H2 increase in the steam fine coal gasification process was determined in a fixed bed gasifier. The steam gasif...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Journal of King Saud University: Engineering Sciences |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1018363922000745 |
| _version_ | 1827324692970602496 |
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| author | Nabila Aprianti Muhammad Faizal Muhammad Said Subriyer Nasir |
| author_facet | Nabila Aprianti Muhammad Faizal Muhammad Said Subriyer Nasir |
| author_sort | Nabila Aprianti |
| collection | DOAJ |
| description | Improving the quality of syngas from fine coal waste using the sorption-enhanced gasification process is a novel technology in the production of H2. The effect of CaO on CO2 absorption and H2 increase in the steam fine coal gasification process was determined in a fixed bed gasifier. The steam gasification process took place at 650 °C using bentonite and CaO as catalysts and absorbents. Steam increased the H2 concentration in the syngas to 58 vol%. In-situ CO2 absorption is more effective with the addition of CaO. The maximum percentage of CO2 was absorbed when the Ca/C ratio 2 was 78.33 %. The H2 content in the syngas after the CO2 was absorbed increased rapidly to 75.80 vol% at a Ca-to-carbon-mole ratio (Ca/C) of 1.5 and a steam-to-feedstock ratio (S/F) of 1.5. CaO did not produce significant results for low heating value (LHV) or cold gas efficiency (CGE), with results of 12 MJ/Nm3 and 44.53 %. The dominant water gas shift reaction due to the influence of steam and CaO increased H2/CO up to 9.11, which made the syngas from this work suitable for Fischer–Tropsch synthesis. |
| first_indexed | 2024-03-07T14:01:42Z |
| format | Article |
| id | doaj.art-0bfc9817fce247d78c3ca539b3c1561d |
| institution | Directory Open Access Journal |
| issn | 1018-3639 |
| language | English |
| last_indexed | 2024-03-07T14:01:42Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of King Saud University: Engineering Sciences |
| spelling | doaj.art-0bfc9817fce247d78c3ca539b3c1561d2024-03-07T05:26:54ZengElsevierJournal of King Saud University: Engineering Sciences1018-36392024-02-013628188Sorption-enhanced steam gasification of fine coal waste for fuel producingNabila Aprianti0Muhammad Faizal1Muhammad Said2Subriyer Nasir3Doctoral Program of Environmental Science, Graduate School, Universitas Sriwijaya, Palembang 30139, South Sumatra, Indonesia; Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya, Ogan Ilir 30662, South Sumatra, IndonesiaChemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya, Ogan Ilir 30662, South Sumatra, Indonesia; Corresponding author.Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya, Ogan Ilir 30662, South Sumatra, IndonesiaChemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya, Ogan Ilir 30662, South Sumatra, IndonesiaImproving the quality of syngas from fine coal waste using the sorption-enhanced gasification process is a novel technology in the production of H2. The effect of CaO on CO2 absorption and H2 increase in the steam fine coal gasification process was determined in a fixed bed gasifier. The steam gasification process took place at 650 °C using bentonite and CaO as catalysts and absorbents. Steam increased the H2 concentration in the syngas to 58 vol%. In-situ CO2 absorption is more effective with the addition of CaO. The maximum percentage of CO2 was absorbed when the Ca/C ratio 2 was 78.33 %. The H2 content in the syngas after the CO2 was absorbed increased rapidly to 75.80 vol% at a Ca-to-carbon-mole ratio (Ca/C) of 1.5 and a steam-to-feedstock ratio (S/F) of 1.5. CaO did not produce significant results for low heating value (LHV) or cold gas efficiency (CGE), with results of 12 MJ/Nm3 and 44.53 %. The dominant water gas shift reaction due to the influence of steam and CaO increased H2/CO up to 9.11, which made the syngas from this work suitable for Fischer–Tropsch synthesis.http://www.sciencedirect.com/science/article/pii/S1018363922000745Calcium oxideH2-rich syngasBentoniteCatalyticCO2 absorption |
| spellingShingle | Nabila Aprianti Muhammad Faizal Muhammad Said Subriyer Nasir Sorption-enhanced steam gasification of fine coal waste for fuel producing Journal of King Saud University: Engineering Sciences Calcium oxide H2-rich syngas Bentonite Catalytic CO2 absorption |
| title | Sorption-enhanced steam gasification of fine coal waste for fuel producing |
| title_full | Sorption-enhanced steam gasification of fine coal waste for fuel producing |
| title_fullStr | Sorption-enhanced steam gasification of fine coal waste for fuel producing |
| title_full_unstemmed | Sorption-enhanced steam gasification of fine coal waste for fuel producing |
| title_short | Sorption-enhanced steam gasification of fine coal waste for fuel producing |
| title_sort | sorption enhanced steam gasification of fine coal waste for fuel producing |
| topic | Calcium oxide H2-rich syngas Bentonite Catalytic CO2 absorption |
| url | http://www.sciencedirect.com/science/article/pii/S1018363922000745 |
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