Síntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3

Detalhes bibliográficos
Autor(a) principal: Souza, José Roberto de
Data de Publicação: 2010
Tipo de documento: Tese
Idioma: por
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/15905
Resumo: The current natural gas production of 52 Mm3d-1 and the large projects for its expansion has been setting new boundaries for the Brazilian industry of oil and gas. So far, one of the biggest challenges regards to the logistics for gas transportation from offshore fields. Therefore, the transformation of natural gas into gasoline, diesel and/or olefins via Fischer-Tropsch synthesis would be an alternative to this matter. In this work, the production of hydrocarbons by Fischer-Tropsch synthesis in a slurry reactor was investigated and a perovskite-type catalyst (LayCu0,4Fe0,6O3 ± d) was used with y varying from 0 to 1 on a molar basis. In addition, Nb2O5 support was also applied in order to observe the selectivity of the produced hydrocarbons by the Fischer-Tropsch process. It is shown that the hydrogen conversion was influenced by the support as well as the different phases of the samples. The kinetic results for the CO2 production suffered great influence with the introduction of the Nb2O5 support throughout the series of samples studied. The catalysts allowed obtaining welldefined cuts of hydrocarbons in the range of C1-C6 and C17-C28, and these results were clearly influenced by the support and the lanthanum content. The higher olefin/paraffin ratio obtained was 1.8 when using a non-supported perovskite with y equal to 0.8. This would indicate the suitability of using this material for the production of olefins
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spelling Souza, José Roberto dehttp://lattes.cnpq.br/5381184161864484http://lattes.cnpq.br/5840621182000517Ruiz, Juan Alberto Chavezhttp://lattes.cnpq.br/5051286289341242Silva, Antonio Osimar Sousa dahttp://lattes.cnpq.br/5289388662589522Santos, Luiz Carlos Lobato doshttp://lattes.cnpq.br/8891045064075199Garnica, Alfredo Ismael Curbelohttp://lattes.cnpq.br/0257037690238235Ferreira, Sebastião Ribeirohttp://lattes.cnpq.br/7849019313801150Melo, Marcus Antônio de Freitas2014-12-17T15:01:51Z2011-04-042014-12-17T15:01:51Z2010-07-30SOUZA, José Roberto de. Síntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3. 2010. 109 f. Tese (Doutorado em Pesquisa e Desenvolvimento de Tecnologias Regionais) - Universidade Federal do Rio Grande do Norte, Natal, 2010.https://repositorio.ufrn.br/jspui/handle/123456789/15905The current natural gas production of 52 Mm3d-1 and the large projects for its expansion has been setting new boundaries for the Brazilian industry of oil and gas. So far, one of the biggest challenges regards to the logistics for gas transportation from offshore fields. Therefore, the transformation of natural gas into gasoline, diesel and/or olefins via Fischer-Tropsch synthesis would be an alternative to this matter. In this work, the production of hydrocarbons by Fischer-Tropsch synthesis in a slurry reactor was investigated and a perovskite-type catalyst (LayCu0,4Fe0,6O3 ± d) was used with y varying from 0 to 1 on a molar basis. In addition, Nb2O5 support was also applied in order to observe the selectivity of the produced hydrocarbons by the Fischer-Tropsch process. It is shown that the hydrogen conversion was influenced by the support as well as the different phases of the samples. The kinetic results for the CO2 production suffered great influence with the introduction of the Nb2O5 support throughout the series of samples studied. The catalysts allowed obtaining welldefined cuts of hydrocarbons in the range of C1-C6 and C17-C28, and these results were clearly influenced by the support and the lanthanum content. The higher olefin/paraffin ratio obtained was 1.8 when using a non-supported perovskite with y equal to 0.8. This would indicate the suitability of using this material for the production of olefinsA produção atual de 52 milhões m³dia-1 de gás natural e os grandes projetos para esta expansão vem estabelecendo novas fronteiras para a indústria nacional de petróleo e gás, sendo um dos maiores desafios a logística para o transporte do gás oriundo de campos offshore. Uma alternativa seria usar o gás natural para a produção de gasolina, diesel e/ou olefinas através da síntese de Fischer-Tropsch. No desenvolvimento deste trabalho foi investigado a produção de hidrocarbonetos via síntese de Fischer-Tropsch em um reator slurry mediante uso de catalisadores do tipo perovskita, LayCu0,4Fe0,6O3±d, onde y sofreu variação de 0 até 1 em base molar. A síntese dos catalisadores levou em consideração o estudo da influência do teor de lantânio e do suporte (Nb2O5) na atividade e seletividade da reação de Fischer-Tropsch, objetivando a produção de hidrocarbonetos. As conversões de H2 foram sensivelmente influênciadas pela presença de fases existentes em cada amostra, assim como pelo suporte. Os resultados da cinética de produção de CO2 sofreram grandes influências com a introdução do suporte em toda a série das amostras produzidas. Os catalisadores empregados permitiram a obtenção de cortes bem definidos de hidrocarbonetos na faixa de C1-C6 e C17-C28, sendo estes resultados claramente influenciados pelo suporte e pela variação do teor de lantânio. A maior relação olefina/parafina obtida foi de 1,8 para a perovskita com y igual a 0,8 na amostra não suportada, viabilizando o uso deste material na produção de olefinasapplication/pdfporUniversidade Federal do Rio Grande do NortePrograma de Pós-Graduação em Engenharia QuímicaUFRNBRPesquisa e Desenvolvimento de Tecnologias RegionaisGTLFischer-TropschPerovskitasOlefinasGás naturalGTLFischer-TropschPerovskiteOlefinsNatural gasCNPQ::ENGENHARIAS::ENGENHARIA QUIMICASíntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALJoseRS_TESE.pdfapplication/pdf2480554https://repositorio.ufrn.br/bitstream/123456789/15905/1/JoseRS_TESE.pdf063a0cad7c7f0aba30894e5fdff5f4a7MD51TEXTJoseRS_TESE.pdf.txtJoseRS_TESE.pdf.txtExtracted texttext/plain161519https://repositorio.ufrn.br/bitstream/123456789/15905/6/JoseRS_TESE.pdf.txtda52cfb5f815a2385b3e298ed4e2f466MD56THUMBNAILJoseRS_TESE.pdf.jpgJoseRS_TESE.pdf.jpgIM Thumbnailimage/jpeg3308https://repositorio.ufrn.br/bitstream/123456789/15905/7/JoseRS_TESE.pdf.jpg0e5a3522d7d137bcd7a30a4089a95130MD57123456789/159052017-11-02 05:54:38.235oai:https://repositorio.ufrn.br:123456789/15905Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2017-11-02T08:54:38Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.por.fl_str_mv Síntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3
title Síntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3
spellingShingle Síntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3
Souza, José Roberto de
GTL
Fischer-Tropsch
Perovskitas
Olefinas
Gás natural
GTL
Fischer-Tropsch
Perovskite
Olefins
Natural gas
CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA
title_short Síntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3
title_full Síntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3
title_fullStr Síntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3
title_full_unstemmed Síntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3
title_sort Síntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3
author Souza, José Roberto de
author_facet Souza, José Roberto de
author_role author
dc.contributor.authorID.por.fl_str_mv
dc.contributor.authorLattes.por.fl_str_mv http://lattes.cnpq.br/5381184161864484
dc.contributor.advisorID.por.fl_str_mv
dc.contributor.advisorLattes.por.fl_str_mv http://lattes.cnpq.br/5840621182000517
dc.contributor.advisor-co1ID.por.fl_str_mv
dc.contributor.referees1.pt_BR.fl_str_mv Silva, Antonio Osimar Sousa da
dc.contributor.referees1ID.por.fl_str_mv
dc.contributor.referees1Lattes.por.fl_str_mv http://lattes.cnpq.br/5289388662589522
dc.contributor.referees2.pt_BR.fl_str_mv Santos, Luiz Carlos Lobato dos
dc.contributor.referees2ID.por.fl_str_mv
dc.contributor.referees2Lattes.por.fl_str_mv http://lattes.cnpq.br/8891045064075199
dc.contributor.referees3.pt_BR.fl_str_mv Garnica, Alfredo Ismael Curbelo
dc.contributor.referees3ID.por.fl_str_mv
dc.contributor.referees3Lattes.por.fl_str_mv http://lattes.cnpq.br/0257037690238235
dc.contributor.referees4.pt_BR.fl_str_mv Ferreira, Sebastião Ribeiro
dc.contributor.referees4ID.por.fl_str_mv
dc.contributor.referees4Lattes.por.fl_str_mv http://lattes.cnpq.br/7849019313801150
dc.contributor.author.fl_str_mv Souza, José Roberto de
dc.contributor.advisor-co1.fl_str_mv Ruiz, Juan Alberto Chavez
dc.contributor.advisor-co1Lattes.fl_str_mv http://lattes.cnpq.br/5051286289341242
dc.contributor.advisor1.fl_str_mv Melo, Marcus Antônio de Freitas
contributor_str_mv Ruiz, Juan Alberto Chavez
Melo, Marcus Antônio de Freitas
dc.subject.por.fl_str_mv GTL
Fischer-Tropsch
Perovskitas
Olefinas
Gás natural
topic GTL
Fischer-Tropsch
Perovskitas
Olefinas
Gás natural
GTL
Fischer-Tropsch
Perovskite
Olefins
Natural gas
CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA
dc.subject.eng.fl_str_mv GTL
Fischer-Tropsch
Perovskite
Olefins
Natural gas
dc.subject.cnpq.fl_str_mv CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA
description The current natural gas production of 52 Mm3d-1 and the large projects for its expansion has been setting new boundaries for the Brazilian industry of oil and gas. So far, one of the biggest challenges regards to the logistics for gas transportation from offshore fields. Therefore, the transformation of natural gas into gasoline, diesel and/or olefins via Fischer-Tropsch synthesis would be an alternative to this matter. In this work, the production of hydrocarbons by Fischer-Tropsch synthesis in a slurry reactor was investigated and a perovskite-type catalyst (LayCu0,4Fe0,6O3 ± d) was used with y varying from 0 to 1 on a molar basis. In addition, Nb2O5 support was also applied in order to observe the selectivity of the produced hydrocarbons by the Fischer-Tropsch process. It is shown that the hydrogen conversion was influenced by the support as well as the different phases of the samples. The kinetic results for the CO2 production suffered great influence with the introduction of the Nb2O5 support throughout the series of samples studied. The catalysts allowed obtaining welldefined cuts of hydrocarbons in the range of C1-C6 and C17-C28, and these results were clearly influenced by the support and the lanthanum content. The higher olefin/paraffin ratio obtained was 1.8 when using a non-supported perovskite with y equal to 0.8. This would indicate the suitability of using this material for the production of olefins
publishDate 2010
dc.date.issued.fl_str_mv 2010-07-30
dc.date.available.fl_str_mv 2011-04-04
2014-12-17T15:01:51Z
dc.date.accessioned.fl_str_mv 2014-12-17T15:01:51Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
status_str publishedVersion
dc.identifier.citation.fl_str_mv SOUZA, José Roberto de. Síntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3. 2010. 109 f. Tese (Doutorado em Pesquisa e Desenvolvimento de Tecnologias Regionais) - Universidade Federal do Rio Grande do Norte, Natal, 2010.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/jspui/handle/123456789/15905
identifier_str_mv SOUZA, José Roberto de. Síntese de Fischer-Tropsch sobre perovskitas LayCu0,4Fe0,6O3. 2010. 109 f. Tese (Doutorado em Pesquisa e Desenvolvimento de Tecnologias Regionais) - Universidade Federal do Rio Grande do Norte, Natal, 2010.
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dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do Rio Grande do Norte
dc.publisher.program.fl_str_mv Programa de Pós-Graduação em Engenharia Química
dc.publisher.initials.fl_str_mv UFRN
dc.publisher.country.fl_str_mv BR
dc.publisher.department.fl_str_mv Pesquisa e Desenvolvimento de Tecnologias Regionais
publisher.none.fl_str_mv Universidade Federal do Rio Grande do Norte
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