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Previous issue date: 2017-06-29 / A borra oleosa (BO) de petr?leo apresenta um agregado complexo de
hidrocarbonetos, impurezas org?nicas, inorg?nicas e ?gua. Um dos principais problemas
encontrados atualmente na ind?stria petrolifera ? o gerenciamento (acondicionamento,
armazenamento, transporte e destino) de res?duos. Os nanomateriais (catalisadores)
mesoporosos e microporosos s?o considerados promissores em processos de refino de
petr?leo e como adsorventes para prote??o ambiental. O foco deste trabalho foi estudar a
BO de petr?leo oriunda do processamento prim?rio, com aplica??o de degrada??o t?rmica
e termocatal?tica com nanomateriais, visando a produ??o de derivados de petr?leo. O
catalisador NaY foi sintetizado com uma raz?o molar de sil?cio/alum?nio de 50 (Si/Al =
1,5), usando silicato de s?dio (Na2SiO3) como fonte de sil?cio e aluminato de s?dio
(NaAlO2) como a fonte de alum?nio e, posteriormente feito uma troca i?nica para
obten??o de sua forma ?cida - HY. As amostras dos materiais nanoestruturados foram
caracterizadas por analise termogravim?trica (TG/DTG), difra??o de raios X (DRX),
microscopia eletr?nica de varredura (MEV), espectroscopia de absor??o na regi?o do
infravermelho com transformada de Fourier (FT-IR). A caracteriza??o mostrou que os
materiais sintetizados resultaram em um catalisador nano estruturado de acordo com a
literatura existente. A degrada??o t?rmica e catal?tica da borra oleosa de petr?leo foi
realizada nas faixas de temperatura de 100, 200, 300, 400 e 500 ?C, variando com o tempo
de 0 a 60 min para cada temperatura. As curvas obtidas atrav?s da degrada??o, mostram
uma deteriora??o mais acelerada da borra oleosa quando existe a presen?a de catalisador
no meio. Esses dados foram corroborados pela energia de ativa??o e foram estudados
pelos par?metros de Arrhenius, onde foi poss?vel observar a energia de ativa??o para
degrada??o t?rmica e termocatal?tica da borra oleosa. / The oily sludge presents a complete aggregate of hydrocarbons, organic and
inorganic impurities, and water. One of the main bottlenecks currently found in oil
industry it's the manegement (packaging, storage, transportation and destination) of
waste. The nanomaterials (catalysts) mesoporous and microporous are considered
promissing in oil refining processes and as absorvents to enviromental protection. The
focus of this work was study de oily sludge from primary processing, with applications
of thermal degradation and thermocatalytic with nanomaterials, aiming the production of
oil derivates. The catalyst NaY was sintetized with a silica/aluminum molar ratio of 50
(Si/Al = 1,5), using sodium silicate (Na2SiO3) as source of silicon e sodium
aluminate (NaAlO2), as the aluminum source and, posteriorly was done a ion exchange
to obtain its acid form - HY. The samples of the nanostructured materials by
thermogravimetric analysis (TG/DTG), X-ray diffraction (DRX), scanning electro
micorscopy (SEM), absorption spectroscopy in the infrared region with Fourier transform
(FT-IR). The characterizations showed that the synthesized materials resulted in a
nanostructured catalyest according to the existent literature. The thermal and catalytic
degradation of the oily sludge was performed in the temperature ranges of 100, 200, 300,
400 and 500 ?C, varying with time of 0 to 60 min to each temperature. The curves
obtained through degradation showed a faster deterioration of oily sludge when there a
presence of catalyst on the midst. These datas were corroborated by the activation energy
and were studied by Arrhenius parameter, where was possible to observe the activation
energy to thermal and thermo-catalytic degradation of the oily sludge.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/23877 |
| Date | 29 June 2017 |
| Creators | Silva, Jo?o Manuel R?go |
| Contributors | 35530502415, http://lattes.cnpq.br/9770622597949866, Fernandes J?nior, Valter Jos?, 42314070453, http://lattes.cnpq.br/1595902438130772, Coriolano, Ana Catarina Fernandes, 83744479404, http://lattes.cnpq.br/5552621403067808, Ara?jo, Antonio Souza de |
| Publisher | PROGRAMA DE P?S-GRADUA??O EM CI?NCIA E ENGENHARIA DE PETR?LEO, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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