Dynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis char
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/38010 |
Resumo: | In this work, sewage sludge char was tested as a H2S adsorbent in a fixed-bed column, at 25 °C. The char was activated physically and chemically (with HCl or KOH) to enhance textural properties. Commercial activated carbon impregnated with iron was also tested for comparison. The column was filled with 18.24 g of char and, then, fed H2S (600 ppm) under 50 mL/min. The effluent gas composition was measured via photocolorimetry and the data was used to plot breakthrough curves. A mathematical modeling was used to estimate parameters such as axial diffusivity, effective intraparticle diffusivity, and external mass transfer coefficient. The main results show that the adsorption capacities varied from 7.2 to 657.60 mgH2S/gads. The percentages of H2S adsorbed varied from 43.36 to 59.04%. HCl proved to be more efficient than KOH. Due to improved textural properties, the commercial activated carbon outperformed (69.15%, 12,527.80 mgH2S/gads) all char samples |
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Possa, Rosângela DalaSousa, João Fernandes deOliveira, Jackson Araújo deNascimento, P. F. P.Lima, M. T. A.Brandão, I. B.Bezerra, Márcio Barbalho Dantas2021-09-24T13:48:09Z2021-09-24T13:48:09Z2018POSSA, R. D.; SOUSA, J. F.; OLIVEIRA, J. A.; NASCIMENTO, P. F. P.; LIMA, M. T. A.; BRANDÃO, I. B.; BEZERRA, M. B. D.. Dynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis char. Brazilian Journal Of Petroleum And Gas, [S.L.], v. 12, n. 2, p. 77-90, 11 jul. 2018. Disponível em: http://www.portalabpg.org.br/bjpg/index.php/bjpg/article/view/593. Acesso em: 31 maio 2021. http://dx.doi.org/10.5419/bjpg2018-0008.1982-0593https://repositorio.ufrn.br/handle/123456789/3801010.5419/bjpg2018-0008ABPGMass transfer zoneFixed-bed columnH2S adsorptionSewage sludge pyrolysis charBreakthrough curveDynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis charinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleIn this work, sewage sludge char was tested as a H2S adsorbent in a fixed-bed column, at 25 °C. The char was activated physically and chemically (with HCl or KOH) to enhance textural properties. Commercial activated carbon impregnated with iron was also tested for comparison. The column was filled with 18.24 g of char and, then, fed H2S (600 ppm) under 50 mL/min. The effluent gas composition was measured via photocolorimetry and the data was used to plot breakthrough curves. A mathematical modeling was used to estimate parameters such as axial diffusivity, effective intraparticle diffusivity, and external mass transfer coefficient. The main results show that the adsorption capacities varied from 7.2 to 657.60 mgH2S/gads. The percentages of H2S adsorbed varied from 43.36 to 59.04%. HCl proved to be more efficient than KOH. Due to improved textural properties, the commercial activated carbon outperformed (69.15%, 12,527.80 mgH2S/gads) all char samplesengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessORIGINALDynamicAdsorptionOfH2S_Sousa_2018.pdfDynamicAdsorptionOfH2S_Sousa_2018.pdfapplication/pdf1777249https://repositorio.ufrn.br/bitstream/123456789/38010/1/DynamicAdsorptionOfH2S_Sousa_2018.pdf756963d40611e1212fe27bcc0f052b58MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/38010/2/license.txte9597aa2854d128fd968be5edc8a28d9MD52123456789/380102021-09-27 17:06:30.032oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2021-09-27T20:06:30Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Dynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis char |
title |
Dynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis char |
spellingShingle |
Dynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis char Possa, Rosângela Dala Mass transfer zone Fixed-bed column H2S adsorption Sewage sludge pyrolysis char Breakthrough curve |
title_short |
Dynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis char |
title_full |
Dynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis char |
title_fullStr |
Dynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis char |
title_full_unstemmed |
Dynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis char |
title_sort |
Dynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis char |
author |
Possa, Rosângela Dala |
author_facet |
Possa, Rosângela Dala Sousa, João Fernandes de Oliveira, Jackson Araújo de Nascimento, P. F. P. Lima, M. T. A. Brandão, I. B. Bezerra, Márcio Barbalho Dantas |
author_role |
author |
author2 |
Sousa, João Fernandes de Oliveira, Jackson Araújo de Nascimento, P. F. P. Lima, M. T. A. Brandão, I. B. Bezerra, Márcio Barbalho Dantas |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Possa, Rosângela Dala Sousa, João Fernandes de Oliveira, Jackson Araújo de Nascimento, P. F. P. Lima, M. T. A. Brandão, I. B. Bezerra, Márcio Barbalho Dantas |
dc.subject.por.fl_str_mv |
Mass transfer zone Fixed-bed column H2S adsorption Sewage sludge pyrolysis char Breakthrough curve |
topic |
Mass transfer zone Fixed-bed column H2S adsorption Sewage sludge pyrolysis char Breakthrough curve |
description |
In this work, sewage sludge char was tested as a H2S adsorbent in a fixed-bed column, at 25 °C. The char was activated physically and chemically (with HCl or KOH) to enhance textural properties. Commercial activated carbon impregnated with iron was also tested for comparison. The column was filled with 18.24 g of char and, then, fed H2S (600 ppm) under 50 mL/min. The effluent gas composition was measured via photocolorimetry and the data was used to plot breakthrough curves. A mathematical modeling was used to estimate parameters such as axial diffusivity, effective intraparticle diffusivity, and external mass transfer coefficient. The main results show that the adsorption capacities varied from 7.2 to 657.60 mgH2S/gads. The percentages of H2S adsorbed varied from 43.36 to 59.04%. HCl proved to be more efficient than KOH. Due to improved textural properties, the commercial activated carbon outperformed (69.15%, 12,527.80 mgH2S/gads) all char samples |
publishDate |
2018 |
dc.date.issued.fl_str_mv |
2018 |
dc.date.accessioned.fl_str_mv |
2021-09-24T13:48:09Z |
dc.date.available.fl_str_mv |
2021-09-24T13:48:09Z |
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.citation.fl_str_mv |
POSSA, R. D.; SOUSA, J. F.; OLIVEIRA, J. A.; NASCIMENTO, P. F. P.; LIMA, M. T. A.; BRANDÃO, I. B.; BEZERRA, M. B. D.. Dynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis char. Brazilian Journal Of Petroleum And Gas, [S.L.], v. 12, n. 2, p. 77-90, 11 jul. 2018. Disponível em: http://www.portalabpg.org.br/bjpg/index.php/bjpg/article/view/593. Acesso em: 31 maio 2021. http://dx.doi.org/10.5419/bjpg2018-0008. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/38010 |
dc.identifier.issn.none.fl_str_mv |
1982-0593 |
dc.identifier.doi.none.fl_str_mv |
10.5419/bjpg2018-0008 |
identifier_str_mv |
POSSA, R. D.; SOUSA, J. F.; OLIVEIRA, J. A.; NASCIMENTO, P. F. P.; LIMA, M. T. A.; BRANDÃO, I. B.; BEZERRA, M. B. D.. Dynamic adsorption of H2s in a fixed bed of sewage sludge pyrolysis char. Brazilian Journal Of Petroleum And Gas, [S.L.], v. 12, n. 2, p. 77-90, 11 jul. 2018. Disponível em: http://www.portalabpg.org.br/bjpg/index.php/bjpg/article/view/593. Acesso em: 31 maio 2021. http://dx.doi.org/10.5419/bjpg2018-0008. 1982-0593 10.5419/bjpg2018-0008 |
url |
https://repositorio.ufrn.br/handle/123456789/38010 |
dc.language.iso.fl_str_mv |
eng |
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eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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