Remoção de compostos ácidos do petróleo em diferentes tipos de carvão ativado
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|---|---|
| Publication Date: | 2016 |
| Format: | Master thesis |
| Sprog: | por |
| Source: | Repositório Institucional da UFG |
| Download full: | http://repositorio.bc.ufg.br/tede/handle/tede/6238 |
Summary: | The naphthenic acids comprise a complex mixture of carboxylic acids that are present in petroleum. They are directly responsible for the oil acidity and its corrosiveness in liquid phase during the refining process. Such compounds are also presents in the derivatives, causing several problems to product quality. A possible way of removing these acids from those oil fractions is using the adsorption process in porous solids, as activated carbons. There are few studies about the removal of naphthenic acids on coals. For this reason, we chose four types of activated carbons for adsorption tests, and they coal babassu, palm kernel, coconut and of Bahia ox bone. In order to assess the possibility of further removing acidic compounds, the four carbons were subjected to a chemical treatment with concentrated sodium hydroxide. Physical and chemical analyzes were performed in order to promote the characterization of all adsorbents, showing that the treatment previously mentioned was leading to an increase in the adsorption capacity of the coals. The adsorption experiments with commercial batch naphthenic acid solution showed that the treated ox bone char had the highest retention efficiency, which is the adsorbent used to construct the adsorption isotherms. The isotherms were better adjusted by Langmuir model, revealing the chemisorption of character adsorptive process. The thermodynamic data showed that the process is spontaneous and endothermic, is favored by increasing the temperature. Regarding the crude oil sample, batch adsorption experiments were conducted in such a way as to determine the removal efficiency of class O2 and reducing the Total Acid Number (IAT). The results spectrometry FTICR ix MS Pasta, they showed that all coals chemically treated were able to remove more acidic compounds in relation to their untreated related. The raw coals babassu oil, palm oil and coconut Bahia showed a potential for adsorption of nitrogen compounds from oil, given that there was a decrease in its class in the class chart. As a final analysis, all the coals were evaluated for their ability to lower oil IAT, it was found that the ox bone char treated again achieved the best result, reducing by 70% the value of the IAT. |
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| author | Araújo, Anderson Barros Caixeta |
| author_browse | Araújo, Anderson Barros Caixeta |
| author_facet | Araújo, Anderson Barros Caixeta |
| author_role | author |
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| collection | Repositório Institucional da UFG |
| contributor_str_mv | Ostroski, Indianara Conceição Vaz, Boniek Gontijo Ostroski, Indianara Conceição Vaz, Boniek Gontijo Oliveira, Emília Celma de Romão, Wanderson |
| dc.contributor.advisor-co1.fl_str_mv | Vaz, Boniek Gontijo |
| dc.contributor.advisor1.fl_str_mv | Ostroski, Indianara Conceição |
| dc.contributor.advisor1Lattes.fl_str_mv | http://lattes.cnpq.br/9689394915288313 |
| dc.contributor.author.fl_str_mv | Araújo, Anderson Barros Caixeta |
| dc.contributor.authorLattes.fl_str_mv | http://lattes.cnpq.br/5135043612760023 |
| dc.contributor.referee1.fl_str_mv | Ostroski, Indianara Conceição |
| dc.contributor.referee2.fl_str_mv | Vaz, Boniek Gontijo |
| dc.contributor.referee3.fl_str_mv | Oliveira, Emília Celma de |
| dc.contributor.referee4.fl_str_mv | Romão, Wanderson |
| dc.date.accessioned.fl_str_mv | 2016-09-20T11:58:39Z |
| dc.date.issued.fl_str_mv | 2016-02-29 |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.citation.fl_str_mv | ARAUJO, A. B. C. Remoção de compostos ácidos do petróleo em diferentes tipos de carvão ativado. 2016. 78 f. Dissertação (Mestrado em Química) - Universidade Federal de Goiás, Goiânia, 2016. |
| dc.identifier.uri.fl_str_mv | http://repositorio.bc.ufg.br/tede/handle/tede/6238 |
| dc.language.iso.fl_str_mv | por |
| dc.publisher.country.fl_str_mv | Brasil |
| dc.publisher.department.fl_str_mv | Instituto de Química - IQ (RG) |
| dc.publisher.initials.fl_str_mv | UFG |
| dc.publisher.none.fl_str_mv | Universidade Federal de Goiás |
| dc.publisher.program.fl_str_mv | Programa de Pós-graduação em Química (IQ) |
| dc.relation.cnpq.fl_str_mv | 1693583216945602752 |
| dc.relation.confidence.fl_str_mv | 600 600 600 600 |
| dc.relation.department.fl_str_mv | 7826066743741197278 |
| dc.relation.program.fl_str_mv | 663693921325415158 |
| dc.relation.sponsorship.fl_str_mv | 2075167498588264571 |
| dc.rights.driver.fl_str_mv | http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | reponame:Repositório Institucional da UFG instname:Universidade Federal de Goiás (UFG) instacron:UFG |
| dc.subject.cnpq.fl_str_mv | FISICO-QUIMICA::QUIMICA TEORICA |
| dc.subject.eng.fl_str_mv | Oil crude Adsorption Naphthenic acids Activated carbons |
| dc.subject.por.fl_str_mv | Petróleo Adsorção Ácidos naftênicos Carvões ativados |
| dc.title.alternative.eng.fl_str_mv | Acid compounds removal from oil crude in different types of activated carbons |
| dc.title.por.fl_str_mv | Remoção de compostos ácidos do petróleo em diferentes tipos de carvão ativado |
| dc.type.driver.fl_str_mv | info:eu-repo/semantics/masterThesis |
| dc.type.status.fl_str_mv | info:eu-repo/semantics/publishedVersion |
| description | The naphthenic acids comprise a complex mixture of carboxylic acids that are present in petroleum. They are directly responsible for the oil acidity and its corrosiveness in liquid phase during the refining process. Such compounds are also presents in the derivatives, causing several problems to product quality. A possible way of removing these acids from those oil fractions is using the adsorption process in porous solids, as activated carbons. There are few studies about the removal of naphthenic acids on coals. For this reason, we chose four types of activated carbons for adsorption tests, and they coal babassu, palm kernel, coconut and of Bahia ox bone. In order to assess the possibility of further removing acidic compounds, the four carbons were subjected to a chemical treatment with concentrated sodium hydroxide. Physical and chemical analyzes were performed in order to promote the characterization of all adsorbents, showing that the treatment previously mentioned was leading to an increase in the adsorption capacity of the coals. The adsorption experiments with commercial batch naphthenic acid solution showed that the treated ox bone char had the highest retention efficiency, which is the adsorbent used to construct the adsorption isotherms. The isotherms were better adjusted by Langmuir model, revealing the chemisorption of character adsorptive process. The thermodynamic data showed that the process is spontaneous and endothermic, is favored by increasing the temperature. Regarding the crude oil sample, batch adsorption experiments were conducted in such a way as to determine the removal efficiency of class O2 and reducing the Total Acid Number (IAT). The results spectrometry FTICR ix MS Pasta, they showed that all coals chemically treated were able to remove more acidic compounds in relation to their untreated related. The raw coals babassu oil, palm oil and coconut Bahia showed a potential for adsorption of nitrogen compounds from oil, given that there was a decrease in its class in the class chart. As a final analysis, all the coals were evaluated for their ability to lower oil IAT, it was found that the ox bone char treated again achieved the best result, reducing by 70% the value of the IAT. |
| eu_rights_str_mv | openAccess |
| format | masterThesis |
| id | UFG-2_ff3bc4bc4e6ba8ded20768923b342b5a |
| identifier_str_mv | ARAUJO, A. B. C. Remoção de compostos ácidos do petróleo em diferentes tipos de carvão ativado. 2016. 78 f. Dissertação (Mestrado em Química) - Universidade Federal de Goiás, Goiânia, 2016. |
| instacron_str | UFG |
| institution | UFG |
| instname_str | Universidade Federal de Goiás (UFG) |
| language | por |
| network_acronym_str | UFG-2 |
| network_name_str | Repositório Institucional da UFG |
| oai_identifier_str | oai:repositorio.bc.ufg.br:tede/6238 |
| publishDate | 2016 |
| publishDateSort | 2016 |
| publisher.none.fl_str_mv | Universidade Federal de Goiás |
| reponame_str | Repositório Institucional da UFG |
| repository.mail.fl_str_mv | grt.bc@ufg.br |
| repository.name.fl_str_mv | Repositório Institucional da UFG - Universidade Federal de Goiás (UFG) |
| repository_id_str | oai:repositorio.bc.ufg.br:tede/1234 |
| rights_invalid_str_mv | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| spelling | Ostroski, Indianara Conceiçãohttp://lattes.cnpq.br/9689394915288313Vaz, Boniek GontijoOstroski, Indianara ConceiçãoVaz, Boniek GontijoOliveira, Emília Celma deRomão, Wandersonhttp://lattes.cnpq.br/5135043612760023Araújo, Anderson Barros Caixeta2016-09-20T11:58:39Z2016-02-29ARAUJO, A. B. C. Remoção de compostos ácidos do petróleo em diferentes tipos de carvão ativado. 2016. 78 f. Dissertação (Mestrado em Química) - Universidade Federal de Goiás, Goiânia, 2016.http://repositorio.bc.ufg.br/tede/handle/tede/6238The naphthenic acids comprise a complex mixture of carboxylic acids that are present in petroleum. They are directly responsible for the oil acidity and its corrosiveness in liquid phase during the refining process. Such compounds are also presents in the derivatives, causing several problems to product quality. A possible way of removing these acids from those oil fractions is using the adsorption process in porous solids, as activated carbons. There are few studies about the removal of naphthenic acids on coals. For this reason, we chose four types of activated carbons for adsorption tests, and they coal babassu, palm kernel, coconut and of Bahia ox bone. In order to assess the possibility of further removing acidic compounds, the four carbons were subjected to a chemical treatment with concentrated sodium hydroxide. Physical and chemical analyzes were performed in order to promote the characterization of all adsorbents, showing that the treatment previously mentioned was leading to an increase in the adsorption capacity of the coals. The adsorption experiments with commercial batch naphthenic acid solution showed that the treated ox bone char had the highest retention efficiency, which is the adsorbent used to construct the adsorption isotherms. The isotherms were better adjusted by Langmuir model, revealing the chemisorption of character adsorptive process. The thermodynamic data showed that the process is spontaneous and endothermic, is favored by increasing the temperature. Regarding the crude oil sample, batch adsorption experiments were conducted in such a way as to determine the removal efficiency of class O2 and reducing the Total Acid Number (IAT). The results spectrometry FTICR ix MS Pasta, they showed that all coals chemically treated were able to remove more acidic compounds in relation to their untreated related. The raw coals babassu oil, palm oil and coconut Bahia showed a potential for adsorption of nitrogen compounds from oil, given that there was a decrease in its class in the class chart. As a final analysis, all the coals were evaluated for their ability to lower oil IAT, it was found that the ox bone char treated again achieved the best result, reducing by 70% the value of the IAT.Os ácidos naftênicos correspondem à complexa mistura de ácidos carboxílicos presentes no petróleo, responsáveis diretamente pela sua acidez e pela sua corrosividade em fase líquida durante o refino. Tais compostos também estão presentes nas frações destiladas do petróleo, causando diversos problemas na qualidade final do produto. Uma alternativa para a remoção desses ácidos das frações destiladas é por meio da adsorção em materiais porosos, como os carvões ativados. Poucos são os estudos a respeito da remoção de ácidos naftênicos em carvões. Por esta razão, foram escolhidos quatro tipos de carvões ativados para os ensaios de adsorção, sendo eles carvão de babaçu, dendê, coco da Bahia e osso de boi. A fim de avaliar a possibilidade de uma maior remoção de compostos ácidos, os quatro carvões foram submetidos a um tratamento químico com solução concentrada de hidróxido de sódio. Análises físico-químicas foram realizadas com o intuito de promover a caracterização de todos os adsorventes, revelando que o tratamento anteriormente citado foi preponderante para um aumento na capacidade adsortiva dos carvões. Os ensaios de adsorção em batelada com solução comercial de ácidos naftênicos mostraram que o carvão de osso de boi tratado apresentou a maior eficiência de retenção, sendo este o adsorvente utilizado para a construção das isotermas de adsorção. As isotermas foram melhor ajustadas pelo Modelo de Langmuir, revelando o caráter de quimiossorção do processo adsortivo. Os dados termodinâmicos mostraram que o processo é espontâneo e endotérmico, sendo mais favorecido pelo aumento da temperatura. Em relação à amostra de petróleo bruto, ensaios de adsorção em batelada foram conduzidos de tal forma a averiguar a eficiência na remoção da classe O2 e na redução do Índice de Acidez Total (IAT). Os resultados de Espectrometria de Massas FT-ICR MS, mostraram que todos os carvões tratados quimicamente conseguiram remover mais compostos ácidos em relação a seus correlatos não tratados. Os carvões brutos de babaçu, dendê e coco da Bahia apresentaram uma potencialidade para adsorção de compostos nitrogenados do petróleo, haja vista que houve a diminuição desta classe no gráfico de classes. Como análise final, todos os carvões foram avaliados quanto suas capacidades de redução do IAT do petróleo, em que foi constatado que o carvão de osso de boi tratado novamente conseguiu o melhor resultado, reduzindo em 70% o valor do IAT.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfporUniversidade Federal de GoiásPrograma de Pós-graduação em Química (IQ)UFGBrasilInstituto de Química - IQ (RG)http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessPetróleoAdsorçãoÁcidos naftênicosCarvões ativadosOil crudeAdsorptionNaphthenic acidsActivated carbonsFISICO-QUIMICA::QUIMICA TEORICARemoção de compostos ácidos do petróleo em diferentes tipos de carvão ativadoAcid compounds removal from oil crude in different types of activated carbonsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis663693921325415158600600600600782606674374119727816935832169456027522075167498588264571reponame:Repositório Institucional da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGLICENSElicense.txtlicense.txttext/plain; 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| spellingShingle | Remoção de compostos ácidos do petróleo em diferentes tipos de carvão ativado Araújo, Anderson Barros Caixeta Petróleo Adsorção Ácidos naftênicos Carvões ativados Oil crude Adsorption Naphthenic acids Activated carbons FISICO-QUIMICA::QUIMICA TEORICA |
| status_str | publishedVersion |
| title | Remoção de compostos ácidos do petróleo em diferentes tipos de carvão ativado |
| title_full | Remoção de compostos ácidos do petróleo em diferentes tipos de carvão ativado |
| title_fullStr | Remoção de compostos ácidos do petróleo em diferentes tipos de carvão ativado |
| title_full_unstemmed | Remoção de compostos ácidos do petróleo em diferentes tipos de carvão ativado |
| title_short | Remoção de compostos ácidos do petróleo em diferentes tipos de carvão ativado |
| title_sort | Remoção de compostos ácidos do petróleo em diferentes tipos de carvão ativado |
| topic | Petróleo Adsorção Ácidos naftênicos Carvões ativados Oil crude Adsorption Naphthenic acids Activated carbons FISICO-QUIMICA::QUIMICA TEORICA |
| url | http://repositorio.bc.ufg.br/tede/handle/tede/6238 |