Enhancement of slurryability and heating value of coal water slurry (CWS) by torrefaction treatment of low rank coal (LRC)
DC Field | Value | Language |
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dc.contributor.author | Park, Ju-Hyoung | - |
dc.contributor.author | Lee, Young-Joo | - |
dc.contributor.author | Jin, Min-Ho | - |
dc.contributor.author | Park, Se-Joon | - |
dc.contributor.author | Lee, Dong-Wook | - |
dc.contributor.author | Bae, Jong-Soo | - |
dc.contributor.author | Kim, Joeng-Geun | - |
dc.contributor.author | Song, Kwang Ho | - |
dc.contributor.author | Choi, Young-Chan | - |
dc.date.accessioned | 2021-09-03T01:55:31Z | - |
dc.date.available | 2021-09-03T01:55:31Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2017-09-01 | - |
dc.identifier.issn | 0016-2361 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/82283 | - |
dc.description.abstract | To improve cold gas efficiency of entrained-flow gasification, coal water slurry (CWS) as a fuel must have high heating value at low viscosity. Especially, considering unstable supply of bituminous coal, the preparation of CWS with high coal content from low-rank coal remains a challenging topic. In this study, we report a remarkable improvement in coal content of CWS at low viscosity (1000 cP) through torrefaction of low-rank coal. Compared to dried coal (moisture-free coal), the torrefaction of low-rank coal leads to an improvement in hydrophobic nature of coal surface and a decrease in coal porosity. The moisture readsorption ratio of the torrefied low-rank coal significantly decreases due to its high hydrophobic nature and low porosity. As a result, Kideco coal showed a 6% and 58.7% increase in the coal content and heating value of CWS after torrefaction at 300 degrees C in comparison to those of CWS made with dried coal. Ultimately, the torrefied coal-based CWS with enhanced coal content and heating value at low viscosity is expected to contribute to an increase in the efficiency of a gasifier and IGCC process. (C) 2017 Published by Elsevier Ltd. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.subject | HYDROTHERMAL CARBONIZATION | - |
dc.subject | PORE STRUCTURE | - |
dc.subject | HYBRID COAL | - |
dc.subject | IMPROVEMENT | - |
dc.subject | DISPERSANT | - |
dc.subject | PYROLYSIS | - |
dc.subject | MIXTURE | - |
dc.subject | BIOMASS | - |
dc.subject | CHAR | - |
dc.title | Enhancement of slurryability and heating value of coal water slurry (CWS) by torrefaction treatment of low rank coal (LRC) | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Song, Kwang Ho | - |
dc.identifier.doi | 10.1016/j.fuel.2017.03.016 | - |
dc.identifier.scopusid | 2-s2.0-85018930909 | - |
dc.identifier.wosid | 000404084600061 | - |
dc.identifier.bibliographicCitation | FUEL, v.203, pp.607 - 617 | - |
dc.relation.isPartOf | FUEL | - |
dc.citation.title | FUEL | - |
dc.citation.volume | 203 | - |
dc.citation.startPage | 607 | - |
dc.citation.endPage | 617 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | HYDROTHERMAL CARBONIZATION | - |
dc.subject.keywordPlus | PORE STRUCTURE | - |
dc.subject.keywordPlus | HYBRID COAL | - |
dc.subject.keywordPlus | IMPROVEMENT | - |
dc.subject.keywordPlus | DISPERSANT | - |
dc.subject.keywordPlus | PYROLYSIS | - |
dc.subject.keywordPlus | MIXTURE | - |
dc.subject.keywordPlus | BIOMASS | - |
dc.subject.keywordPlus | CHAR | - |
dc.subject.keywordAuthor | Coal | - |
dc.subject.keywordAuthor | Gasification | - |
dc.subject.keywordAuthor | Torrefaction | - |
dc.subject.keywordAuthor | Coal water slurry (CWS) | - |
dc.subject.keywordAuthor | Porosity | - |
dc.subject.keywordAuthor | Low-rank coal | - |
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