Theoretical and experimental approach of fuel gas and carbon black production from coal tar pitch by thermal plasma process
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/09593330.2021.2003437 http://hdl.handle.net/11449/222939 |
Resumo: | The processing of coal tar pitch (CTP) to produce clean fuel gas and carbon black (CB) is studied in a plasma reactor equipped with a direct-current plasma torch. The composition of the gas produced and energy costs were estimated theoretically for the CTP pyrolysis and gasification processes by two oxidants, namely oxygen and water vapor. We have found that the main gaseous compounds obtained in the pyrolysis and gasification processes are hydrogen (H2), carbon monoxide (CO), and very often carbon dioxide (CO2). For the pyrolysis case, the mean value of the synthesis gas concentration reaches a major value of 98 vol.% (H2–81 vol.%, CO–17. vol.%). However, only 23% of the initial CTP is transformed into gas phase at 1100 K and its content increases up to 37.4% at a temperature of 3000 K. For oxygen gasification, the syngas quantity is little less compared to the pyrolysis case and attains 96.6 vol.% (H2–26.5 vol.%, CO–70.1 vol.%) for T > 1100 K. An intermediate syngas content for the water steam gasification is 97.8 vol.% (with H2–55.8 vol.% and CO–42.0 vol.%). The CB produced was composed of well-defined spherical particles of 30-nm size. Furthermore, it is composed of carbon (98.2%), and followed by oxygen (1.8%) with a surface area of 97 m2 g−1. The thermal plasma system shows high efficiency in conversion of CTP into high-value-added products. |
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Theoretical and experimental approach of fuel gas and carbon black production from coal tar pitch by thermal plasma processcarbon blackCoal tar pitchequilibrium calculationFuel Gasthermal plasmaThe processing of coal tar pitch (CTP) to produce clean fuel gas and carbon black (CB) is studied in a plasma reactor equipped with a direct-current plasma torch. The composition of the gas produced and energy costs were estimated theoretically for the CTP pyrolysis and gasification processes by two oxidants, namely oxygen and water vapor. We have found that the main gaseous compounds obtained in the pyrolysis and gasification processes are hydrogen (H2), carbon monoxide (CO), and very often carbon dioxide (CO2). For the pyrolysis case, the mean value of the synthesis gas concentration reaches a major value of 98 vol.% (H2–81 vol.%, CO–17. vol.%). However, only 23% of the initial CTP is transformed into gas phase at 1100 K and its content increases up to 37.4% at a temperature of 3000 K. For oxygen gasification, the syngas quantity is little less compared to the pyrolysis case and attains 96.6 vol.% (H2–26.5 vol.%, CO–70.1 vol.%) for T > 1100 K. An intermediate syngas content for the water steam gasification is 97.8 vol.% (with H2–55.8 vol.% and CO–42.0 vol.%). The CB produced was composed of well-defined spherical particles of 30-nm size. Furthermore, it is composed of carbon (98.2%), and followed by oxygen (1.8%) with a surface area of 97 m2 g−1. The thermal plasma system shows high efficiency in conversion of CTP into high-value-added products.National Institute of Space ResearchTechnological Institute of AeronauticsSão Paulo State UniversitySão Paulo State UniversityNational Institute of Space ResearchTechnological Institute of AeronauticsUniversidade Estadual Paulista (UNESP)Prado, E. S.P.Miranda, F. S.Marquesi, A. R.Essiptchouk, A. [UNESP]Labat Amaral, G. A.da Silva Sobrinho, A. S.Petraconi, G.Baldan, M. R.2022-04-28T19:47:41Z2022-04-28T19:47:41Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1080/09593330.2021.2003437Environmental Technology (United Kingdom).1479-487X0959-3330http://hdl.handle.net/11449/22293910.1080/09593330.2021.20034372-s2.0-85120071653Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEnvironmental Technology (United Kingdom)info:eu-repo/semantics/openAccess2022-04-28T19:47:41Zoai:repositorio.unesp.br:11449/222939Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-05-23T21:09:50.749670Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Theoretical and experimental approach of fuel gas and carbon black production from coal tar pitch by thermal plasma process |
title |
Theoretical and experimental approach of fuel gas and carbon black production from coal tar pitch by thermal plasma process |
spellingShingle |
Theoretical and experimental approach of fuel gas and carbon black production from coal tar pitch by thermal plasma process Prado, E. S.P. carbon black Coal tar pitch equilibrium calculation Fuel Gas thermal plasma |
title_short |
Theoretical and experimental approach of fuel gas and carbon black production from coal tar pitch by thermal plasma process |
title_full |
Theoretical and experimental approach of fuel gas and carbon black production from coal tar pitch by thermal plasma process |
title_fullStr |
Theoretical and experimental approach of fuel gas and carbon black production from coal tar pitch by thermal plasma process |
title_full_unstemmed |
Theoretical and experimental approach of fuel gas and carbon black production from coal tar pitch by thermal plasma process |
title_sort |
Theoretical and experimental approach of fuel gas and carbon black production from coal tar pitch by thermal plasma process |
author |
Prado, E. S.P. |
author_facet |
Prado, E. S.P. Miranda, F. S. Marquesi, A. R. Essiptchouk, A. [UNESP] Labat Amaral, G. A. da Silva Sobrinho, A. S. Petraconi, G. Baldan, M. R. |
author_role |
author |
author2 |
Miranda, F. S. Marquesi, A. R. Essiptchouk, A. [UNESP] Labat Amaral, G. A. da Silva Sobrinho, A. S. Petraconi, G. Baldan, M. R. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
National Institute of Space Research Technological Institute of Aeronautics Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Prado, E. S.P. Miranda, F. S. Marquesi, A. R. Essiptchouk, A. [UNESP] Labat Amaral, G. A. da Silva Sobrinho, A. S. Petraconi, G. Baldan, M. R. |
dc.subject.por.fl_str_mv |
carbon black Coal tar pitch equilibrium calculation Fuel Gas thermal plasma |
topic |
carbon black Coal tar pitch equilibrium calculation Fuel Gas thermal plasma |
description |
The processing of coal tar pitch (CTP) to produce clean fuel gas and carbon black (CB) is studied in a plasma reactor equipped with a direct-current plasma torch. The composition of the gas produced and energy costs were estimated theoretically for the CTP pyrolysis and gasification processes by two oxidants, namely oxygen and water vapor. We have found that the main gaseous compounds obtained in the pyrolysis and gasification processes are hydrogen (H2), carbon monoxide (CO), and very often carbon dioxide (CO2). For the pyrolysis case, the mean value of the synthesis gas concentration reaches a major value of 98 vol.% (H2–81 vol.%, CO–17. vol.%). However, only 23% of the initial CTP is transformed into gas phase at 1100 K and its content increases up to 37.4% at a temperature of 3000 K. For oxygen gasification, the syngas quantity is little less compared to the pyrolysis case and attains 96.6 vol.% (H2–26.5 vol.%, CO–70.1 vol.%) for T > 1100 K. An intermediate syngas content for the water steam gasification is 97.8 vol.% (with H2–55.8 vol.% and CO–42.0 vol.%). The CB produced was composed of well-defined spherical particles of 30-nm size. Furthermore, it is composed of carbon (98.2%), and followed by oxygen (1.8%) with a surface area of 97 m2 g−1. The thermal plasma system shows high efficiency in conversion of CTP into high-value-added products. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 2022-04-28T19:47:41Z 2022-04-28T19:47:41Z |
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://dx.doi.org/10.1080/09593330.2021.2003437 Environmental Technology (United Kingdom). 1479-487X 0959-3330 http://hdl.handle.net/11449/222939 10.1080/09593330.2021.2003437 2-s2.0-85120071653 |
url |
http://dx.doi.org/10.1080/09593330.2021.2003437 http://hdl.handle.net/11449/222939 |
identifier_str_mv |
Environmental Technology (United Kingdom). 1479-487X 0959-3330 10.1080/09593330.2021.2003437 2-s2.0-85120071653 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Environmental Technology (United Kingdom) |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045722631700480 |