Combustion behavior of granulated and pulverized coal in a PCI rig : combustibility and pressure variation analysis

Detalhes bibliográficos
Autor(a) principal: Fragoso, Hector Alejandro Picarte
Data de Publicação: 2019
Outros Autores: Pohlmann, Juliana Gonçalves, Machado, Janaína Gonçalves Maria da Silva, Vilela, Antonio Cezar Faria, Osorio, Eduardo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/220897
Resumo: The effect of the coal volatile matter content and particle size has been investigated in a new lab-scale pulverized coal injection rig (PCI rig) in terms of combustion efficiency and pressure variation. Two coals typically used for blast furnace injection (a high and a low volatile bituminous coal) and their blends experienced combustion under pressurized conditions and extremely high heating rates and short residence times such as those experienced by coal particles in industrial process. Combustion tests were conducted for a low volatile coal prepared in the particle size ranges of 25–75m, 105–250m and 250–500m. Burnouts were lower for the larger particle size sample, but the intermediate particle size sample (105–250m) yielded similar conversion to that of the finer sample. The burnouts of the high and low volatile coal, as well as those of their blends were proportional to the volatile matter content of samples in the test conditions. The measurement of pressure variation in the reactor chamber indicated a displacement in the beginning of reactions to longer times as larger was the particle size of coal. The high volatile coal reached the maximum pressure variation earlier than the low volatile one and the combustion of this coal in the blends may have anticipated the reaction of the low volatile coal portion in the blends.
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spelling Fragoso, Hector Alejandro PicartePohlmann, Juliana GonçalvesMachado, Janaína Gonçalves Maria da SilvaVilela, Antonio Cezar FariaOsorio, Eduardo2021-05-13T04:27:37Z20192238-7854http://hdl.handle.net/10183/220897001123124The effect of the coal volatile matter content and particle size has been investigated in a new lab-scale pulverized coal injection rig (PCI rig) in terms of combustion efficiency and pressure variation. Two coals typically used for blast furnace injection (a high and a low volatile bituminous coal) and their blends experienced combustion under pressurized conditions and extremely high heating rates and short residence times such as those experienced by coal particles in industrial process. Combustion tests were conducted for a low volatile coal prepared in the particle size ranges of 25–75m, 105–250m and 250–500m. Burnouts were lower for the larger particle size sample, but the intermediate particle size sample (105–250m) yielded similar conversion to that of the finer sample. The burnouts of the high and low volatile coal, as well as those of their blends were proportional to the volatile matter content of samples in the test conditions. The measurement of pressure variation in the reactor chamber indicated a displacement in the beginning of reactions to longer times as larger was the particle size of coal. The high volatile coal reached the maximum pressure variation earlier than the low volatile one and the combustion of this coal in the blends may have anticipated the reaction of the low volatile coal portion in the blends.application/pdfengJournal of Materials Research and Technology. São Paulo, SP. Vol. 8, n. 6 (Nov./Dec. 2019), p. 5847-5852Carvão pulverizadoCombustão do carvãoAlto-fornoBlast furnace injectionCoal combustionLab-scale combustion test facilityCombustion pressureCombustion behavior of granulated and pulverized coal in a PCI rig : combustibility and pressure variation analysisEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001123124.pdf.txt001123124.pdf.txtExtracted Texttext/plain27028http://www.lume.ufrgs.br/bitstream/10183/220897/2/001123124.pdf.txt48ae976e55eeb16425cba4204c8b8ed3MD52ORIGINAL001123124.pdfTexto completo (inglês)application/pdf847129http://www.lume.ufrgs.br/bitstream/10183/220897/1/001123124.pdf30c347638adaf2f47f0f3ff9e46637d3MD5110183/2208972021-05-26 04:45:19.676952oai:www.lume.ufrgs.br:10183/220897Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-05-26T07:45:19Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Combustion behavior of granulated and pulverized coal in a PCI rig : combustibility and pressure variation analysis
title Combustion behavior of granulated and pulverized coal in a PCI rig : combustibility and pressure variation analysis
spellingShingle Combustion behavior of granulated and pulverized coal in a PCI rig : combustibility and pressure variation analysis
Fragoso, Hector Alejandro Picarte
Carvão pulverizado
Combustão do carvão
Alto-forno
Blast furnace injection
Coal combustion
Lab-scale combustion test facility
Combustion pressure
title_short Combustion behavior of granulated and pulverized coal in a PCI rig : combustibility and pressure variation analysis
title_full Combustion behavior of granulated and pulverized coal in a PCI rig : combustibility and pressure variation analysis
title_fullStr Combustion behavior of granulated and pulverized coal in a PCI rig : combustibility and pressure variation analysis
title_full_unstemmed Combustion behavior of granulated and pulverized coal in a PCI rig : combustibility and pressure variation analysis
title_sort Combustion behavior of granulated and pulverized coal in a PCI rig : combustibility and pressure variation analysis
author Fragoso, Hector Alejandro Picarte
author_facet Fragoso, Hector Alejandro Picarte
Pohlmann, Juliana Gonçalves
Machado, Janaína Gonçalves Maria da Silva
Vilela, Antonio Cezar Faria
Osorio, Eduardo
author_role author
author2 Pohlmann, Juliana Gonçalves
Machado, Janaína Gonçalves Maria da Silva
Vilela, Antonio Cezar Faria
Osorio, Eduardo
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Fragoso, Hector Alejandro Picarte
Pohlmann, Juliana Gonçalves
Machado, Janaína Gonçalves Maria da Silva
Vilela, Antonio Cezar Faria
Osorio, Eduardo
dc.subject.por.fl_str_mv Carvão pulverizado
Combustão do carvão
Alto-forno
topic Carvão pulverizado
Combustão do carvão
Alto-forno
Blast furnace injection
Coal combustion
Lab-scale combustion test facility
Combustion pressure
dc.subject.eng.fl_str_mv Blast furnace injection
Coal combustion
Lab-scale combustion test facility
Combustion pressure
description The effect of the coal volatile matter content and particle size has been investigated in a new lab-scale pulverized coal injection rig (PCI rig) in terms of combustion efficiency and pressure variation. Two coals typically used for blast furnace injection (a high and a low volatile bituminous coal) and their blends experienced combustion under pressurized conditions and extremely high heating rates and short residence times such as those experienced by coal particles in industrial process. Combustion tests were conducted for a low volatile coal prepared in the particle size ranges of 25–75m, 105–250m and 250–500m. Burnouts were lower for the larger particle size sample, but the intermediate particle size sample (105–250m) yielded similar conversion to that of the finer sample. The burnouts of the high and low volatile coal, as well as those of their blends were proportional to the volatile matter content of samples in the test conditions. The measurement of pressure variation in the reactor chamber indicated a displacement in the beginning of reactions to longer times as larger was the particle size of coal. The high volatile coal reached the maximum pressure variation earlier than the low volatile one and the combustion of this coal in the blends may have anticipated the reaction of the low volatile coal portion in the blends.
publishDate 2019
dc.date.issued.fl_str_mv 2019
dc.date.accessioned.fl_str_mv 2021-05-13T04:27:37Z
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/220897
dc.identifier.issn.pt_BR.fl_str_mv 2238-7854
dc.identifier.nrb.pt_BR.fl_str_mv 001123124
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url http://hdl.handle.net/10183/220897
dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Journal of Materials Research and Technology. São Paulo, SP. Vol. 8, n. 6 (Nov./Dec. 2019), p. 5847-5852
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reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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