Comparative study of the influence of minerals in gas sorption isotherms of three coals of similar rank

Detalhes bibliográficos
Autor(a) principal: Rodrigues, Cristina
Data de Publicação: 2008
Outros Autores: Pinheiro, H. J., Lemos de Sousa, M. J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10284/708
Resumo: This investigation compares the gas adsorption behaviour and capacity of three bituminous coals from South Africa, of similar rank, by assessing the characteristics of the raw coal, as well as the resulting float and sink fractions (at 1.80 cm3/g) obtained by density separation of crushed coal samples. Calculations were also made to obtain the raw coal gas storage capacity from the weighted contribution of both float and sink fractions results, thereby permitting comparison with the analysed results of the raw coal. The study demonstrated that the clean fraction of a coal has the highest capacity to retain gas in the sorbed state, followed by raw coal, and lastly the sink fraction, and re–confirmed previous investigations that showed minerals to be inhibitors of gas adsorption and retention.
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spelling Comparative study of the influence of minerals in gas sorption isotherms of three coals of similar rankThis investigation compares the gas adsorption behaviour and capacity of three bituminous coals from South Africa, of similar rank, by assessing the characteristics of the raw coal, as well as the resulting float and sink fractions (at 1.80 cm3/g) obtained by density separation of crushed coal samples. Calculations were also made to obtain the raw coal gas storage capacity from the weighted contribution of both float and sink fractions results, thereby permitting comparison with the analysed results of the raw coal. The study demonstrated that the clean fraction of a coal has the highest capacity to retain gas in the sorbed state, followed by raw coal, and lastly the sink fraction, and re–confirmed previous investigations that showed minerals to be inhibitors of gas adsorption and retention.The Southern African Institute of Mining and MetallurgyyesRepositório Institucional da Universidade Fernando PessoaRodrigues, CristinaPinheiro, H. J.Lemos de Sousa, M. J.2008-08-25T13:58:42Z2008-01-01T00:00:00Z2008-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10284/708engThe Journal of The Southern African Institute of Mining and Metallurgy. Vol. (108), 371-375info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-06T02:00:22Zoai:bdigital.ufp.pt:10284/708Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:38:12.560044Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Comparative study of the influence of minerals in gas sorption isotherms of three coals of similar rank
title Comparative study of the influence of minerals in gas sorption isotherms of three coals of similar rank
spellingShingle Comparative study of the influence of minerals in gas sorption isotherms of three coals of similar rank
Rodrigues, Cristina
title_short Comparative study of the influence of minerals in gas sorption isotherms of three coals of similar rank
title_full Comparative study of the influence of minerals in gas sorption isotherms of three coals of similar rank
title_fullStr Comparative study of the influence of minerals in gas sorption isotherms of three coals of similar rank
title_full_unstemmed Comparative study of the influence of minerals in gas sorption isotherms of three coals of similar rank
title_sort Comparative study of the influence of minerals in gas sorption isotherms of three coals of similar rank
author Rodrigues, Cristina
author_facet Rodrigues, Cristina
Pinheiro, H. J.
Lemos de Sousa, M. J.
author_role author
author2 Pinheiro, H. J.
Lemos de Sousa, M. J.
author2_role author
author
dc.contributor.none.fl_str_mv yes
Repositório Institucional da Universidade Fernando Pessoa
dc.contributor.author.fl_str_mv Rodrigues, Cristina
Pinheiro, H. J.
Lemos de Sousa, M. J.
description This investigation compares the gas adsorption behaviour and capacity of three bituminous coals from South Africa, of similar rank, by assessing the characteristics of the raw coal, as well as the resulting float and sink fractions (at 1.80 cm3/g) obtained by density separation of crushed coal samples. Calculations were also made to obtain the raw coal gas storage capacity from the weighted contribution of both float and sink fractions results, thereby permitting comparison with the analysed results of the raw coal. The study demonstrated that the clean fraction of a coal has the highest capacity to retain gas in the sorbed state, followed by raw coal, and lastly the sink fraction, and re–confirmed previous investigations that showed minerals to be inhibitors of gas adsorption and retention.
publishDate 2008
dc.date.none.fl_str_mv 2008-08-25T13:58:42Z
2008-01-01T00:00:00Z
2008-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10284/708
url http://hdl.handle.net/10284/708
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv The Journal of The Southern African Institute of Mining and Metallurgy. Vol. (108), 371-375
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv The Southern African Institute of Mining and Metallurgy
publisher.none.fl_str_mv The Southern African Institute of Mining and Metallurgy
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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