CH4 and CO2 monitoring in the air of underground coal mines in southern Brazil and GHG emission estimation
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | REM - International Engineering Journal |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2019000500635 |
Resumo: | Abstract This study aims to assess methane (CH4) and carbon dioxide (CO2) concentrations in the ventilation systems of two coal mines (A and B) in the Santa Catarina coal deposit in southern Brazil (Paraná Basin, Bonito Formation), and estimate their greenhouse gas (GHG) emissions. The highest CH4 levels (1.8%) were recorded in strong methane emanation areas in mine A, below the lower explosive limit (5%). The IPCC-recommended methods significantly overestimated the methane emission (up to 80%) when compared to the experimental data measured for each mine. Application of an alternative method made it possible to estimate direct CO2 emissions, indicating that CO2 accounted for 22 to 77% of total GHG emissions. Carbon dioxide emissions are generally not included in GHG emission inventories, indicating that the coal industry underestimates the contribution of this gas. As such, it is recommended that the methodology used for these calculations be revised and that specific emission factors be applied for each mine. In order to improve the accuracy of inventories, more sampling needs to be carried out in all operational and abandoned mines. |
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REM - International Engineering Journal |
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CH4 and CO2 monitoring in the air of underground coal mines in southern Brazil and GHG emission estimationunderground coal minesemissionsgreenhouse gasesAbstract This study aims to assess methane (CH4) and carbon dioxide (CO2) concentrations in the ventilation systems of two coal mines (A and B) in the Santa Catarina coal deposit in southern Brazil (Paraná Basin, Bonito Formation), and estimate their greenhouse gas (GHG) emissions. The highest CH4 levels (1.8%) were recorded in strong methane emanation areas in mine A, below the lower explosive limit (5%). The IPCC-recommended methods significantly overestimated the methane emission (up to 80%) when compared to the experimental data measured for each mine. Application of an alternative method made it possible to estimate direct CO2 emissions, indicating that CO2 accounted for 22 to 77% of total GHG emissions. Carbon dioxide emissions are generally not included in GHG emission inventories, indicating that the coal industry underestimates the contribution of this gas. As such, it is recommended that the methodology used for these calculations be revised and that specific emission factors be applied for each mine. In order to improve the accuracy of inventories, more sampling needs to be carried out in all operational and abandoned mines.Fundação Gorceix2019-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2019000500635REM - International Engineering Journal v.72 n.4 2019reponame:REM - International Engineering Journalinstname:Fundação Gorceix (FG)instacron:FG10.1590/0370-44672018720105info:eu-repo/semantics/openAccessBonetti,BeatrizAbruzzi,Rafael ColomboPeglow,Carolina PereiraPires,Marçal Jose RodriguesGomes,Cleber José Baldonieng2019-09-13T00:00:00Zoai:scielo:S2448-167X2019000500635Revistahttps://www.rem.com.br/?lang=pt-brPRIhttps://old.scielo.br/oai/scielo-oai.php||editor@rem.com.br2448-167X2448-167Xopendoar:2019-09-13T00:00REM - International Engineering Journal - Fundação Gorceix (FG)false |
dc.title.none.fl_str_mv |
CH4 and CO2 monitoring in the air of underground coal mines in southern Brazil and GHG emission estimation |
title |
CH4 and CO2 monitoring in the air of underground coal mines in southern Brazil and GHG emission estimation |
spellingShingle |
CH4 and CO2 monitoring in the air of underground coal mines in southern Brazil and GHG emission estimation Bonetti,Beatriz underground coal mines emissions greenhouse gases |
title_short |
CH4 and CO2 monitoring in the air of underground coal mines in southern Brazil and GHG emission estimation |
title_full |
CH4 and CO2 monitoring in the air of underground coal mines in southern Brazil and GHG emission estimation |
title_fullStr |
CH4 and CO2 monitoring in the air of underground coal mines in southern Brazil and GHG emission estimation |
title_full_unstemmed |
CH4 and CO2 monitoring in the air of underground coal mines in southern Brazil and GHG emission estimation |
title_sort |
CH4 and CO2 monitoring in the air of underground coal mines in southern Brazil and GHG emission estimation |
author |
Bonetti,Beatriz |
author_facet |
Bonetti,Beatriz Abruzzi,Rafael Colombo Peglow,Carolina Pereira Pires,Marçal Jose Rodrigues Gomes,Cleber José Baldoni |
author_role |
author |
author2 |
Abruzzi,Rafael Colombo Peglow,Carolina Pereira Pires,Marçal Jose Rodrigues Gomes,Cleber José Baldoni |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Bonetti,Beatriz Abruzzi,Rafael Colombo Peglow,Carolina Pereira Pires,Marçal Jose Rodrigues Gomes,Cleber José Baldoni |
dc.subject.por.fl_str_mv |
underground coal mines emissions greenhouse gases |
topic |
underground coal mines emissions greenhouse gases |
description |
Abstract This study aims to assess methane (CH4) and carbon dioxide (CO2) concentrations in the ventilation systems of two coal mines (A and B) in the Santa Catarina coal deposit in southern Brazil (Paraná Basin, Bonito Formation), and estimate their greenhouse gas (GHG) emissions. The highest CH4 levels (1.8%) were recorded in strong methane emanation areas in mine A, below the lower explosive limit (5%). The IPCC-recommended methods significantly overestimated the methane emission (up to 80%) when compared to the experimental data measured for each mine. Application of an alternative method made it possible to estimate direct CO2 emissions, indicating that CO2 accounted for 22 to 77% of total GHG emissions. Carbon dioxide emissions are generally not included in GHG emission inventories, indicating that the coal industry underestimates the contribution of this gas. As such, it is recommended that the methodology used for these calculations be revised and that specific emission factors be applied for each mine. In order to improve the accuracy of inventories, more sampling needs to be carried out in all operational and abandoned mines. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-01 |
dc.type.driver.fl_str_mv |
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://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2019000500635 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2019000500635 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0370-44672018720105 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Fundação Gorceix |
publisher.none.fl_str_mv |
Fundação Gorceix |
dc.source.none.fl_str_mv |
REM - International Engineering Journal v.72 n.4 2019 reponame:REM - International Engineering Journal instname:Fundação Gorceix (FG) instacron:FG |
instname_str |
Fundação Gorceix (FG) |
instacron_str |
FG |
institution |
FG |
reponame_str |
REM - International Engineering Journal |
collection |
REM - International Engineering Journal |
repository.name.fl_str_mv |
REM - International Engineering Journal - Fundação Gorceix (FG) |
repository.mail.fl_str_mv |
||editor@rem.com.br |
_version_ |
1754734691430170624 |