Research Progress on Sulphur Migration Characteristics in Coal Chemical Looping Combustion Processes.
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| Title: | Research Progress on Sulphur Migration Characteristics in Coal Chemical Looping Combustion Processes. |
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| Authors: | An, Mei1 (AUTHOR) 2112523039@wyu.edu.cn, Hao, Pengfei1,2 (AUTHOR), Zhang, Jianping1 (AUTHOR), Bai, Shuli1,2 (AUTHOR), Liu, Ye1 (AUTHOR), Dai, Ziyan1 (AUTHOR), Zhang, Guodong2 (AUTHOR) |
| Source: | Nanomaterials (2079-4991). Jun2026, Vol. 16 Issue 12, p763. 17p. |
| Subjects: | Chemical-looping combustion, Sulfuration, Carbon dioxide mitigation, Pyrolysis, Clean coal technologies, Coal gasification, Oxygen carriers |
| Abstract: | Coal chemical looping combustion (CLC) enables high-concentration CO2 capture with low NOx emissions. However, coal-derived sulphur species in the fuel reactor (FR) present severe challenges, including oxygen carrier (OC) poisoning and CO2 stream contamination. This study identifies coal-derived sulphur within the FR as the primary emission source and systematically characterises its release patterns during pyrolysis and gasification, comparing in-situ gasification CLC (IG-CLC) and chemical looping with oxygen uncoupling (CLOU). Coal sulphur distribution pathways and their governing factors are systematically investigated, followed by a comprehensive characterization of sulphur release behaviour during pyrolysis and gasification. We propose a novel perspective advocating a paradigm shift from passive sulphur tolerance to active in-situ sulphur capture through the rational design of Multifunctional Oxygen Carriers (MOCs). This review provides a comprehensive theoretical framework and practical guidelines for designing sulphur-resistant systems, thereby accelerating the industrial deployment of clean coal chemical looping technologies. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | Coal chemical looping combustion (CLC) enables high-concentration CO2 capture with low NOx emissions. However, coal-derived sulphur species in the fuel reactor (FR) present severe challenges, including oxygen carrier (OC) poisoning and CO2 stream contamination. This study identifies coal-derived sulphur within the FR as the primary emission source and systematically characterises its release patterns during pyrolysis and gasification, comparing in-situ gasification CLC (IG-CLC) and chemical looping with oxygen uncoupling (CLOU). Coal sulphur distribution pathways and their governing factors are systematically investigated, followed by a comprehensive characterization of sulphur release behaviour during pyrolysis and gasification. We propose a novel perspective advocating a paradigm shift from passive sulphur tolerance to active in-situ sulphur capture through the rational design of Multifunctional Oxygen Carriers (MOCs). This review provides a comprehensive theoretical framework and practical guidelines for designing sulphur-resistant systems, thereby accelerating the industrial deployment of clean coal chemical looping technologies. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 20794991 |
| DOI: | 10.3390/nano16120763 |
