Combustion behavior of granulated and pulverized coal in a PCI rig : combustibility and pressure variation analysis
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
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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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 info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
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 |
identifier_str_mv |
2238-7854 001123124 |
url |
http://hdl.handle.net/10183/220897 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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Repositório Institucional da UFRGS |
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