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Previous issue date: 2012-11-04 / Aiming to reduce and reuse waste oil from oily sludge generated in large volumes by the oil
industry, types of nanostructured materials Al-MCM-41 and Al-SBA-15, with ratios of Si / Al
= 50, were synthesized , and calcined solids used as catalysts in the degradation of oily sludge
thermocatalytic oil from oilfield Canto do Amaro, in the state of Rio Grande do Norte.
Samples of nanostructured materials were characterized by thermogravimetric analysis (TG /
DTG), X-ray diffraction (XRD), scanning electron microscopy (SEM), absorption
spectroscopy in the infrared Fourier transform (FT-IR) and adsorption nitrogen (BET). The
characterization showed that the synthesized materials resulted in a catalyst nanostructure,
and ordered pore diameter and surface area according to existing literature. The oily sludge
sample was characterized by determining the API gravity and sulfur content and SARA
analysis (saturates, aromatics, resins and asphaltenes). The results showed a material
equivalent to the average oil with API gravity of 26.1, a low sulfur content and considerable
amount of resins and asphaltenes, presented above in the literature. The thermal and catalytic
degradation of the oily sludge oil was performed from room temperature to 870 ? C in the
ratios of heating of 5, 10 and 20 ? C min-1. The curves generated by TG / DTG showed a
more accelerated degradation of oily sludge when it introduced the nanostructured materials.
These results were confirmed by activation energy calculated by the method of Flynn-Wall, in
the presence of catalysts reduced energy, in particular in the range of cracking, showing the
process efficiency, mainly for extraction of lightweight materials of composition of oily
sludge, such as diesel and gasoline / Com o objetivo de reduzir e reutilizar o res?duo de borra oleosa de petr?leo, gerado em
grandes volumes pela ind?stria petrol?fera, materiais nanoestruturados dos tipos Al-MCM-41
e Al-SBA-15, com raz?es de Si/Al = 50, foram sintetizados, calcinados e utilizados como
s?lidos catal?ticos na degrada??o termocatal?tica da borra oleosa de petr?leo, proveniente do
campo petrol?fero Canto do Amaro, no estado do Rio Grande do Norte. As amostras dos
materiais nanoestruturados foram caracterizadas por an?lise 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) e adsor??o de
nitrog?nio (BET). A caracteriza??o mostrou que os materiais sintetizados resultaram em um
catalisador nanoestruturado, ordenado e com di?metro de poros e ?rea superficial de acordo
com a literatura existente. A amostra de borra oleosa foi caracterizada atrav?s da
determina??o do grau API e do teor de enxofre e da an?lise do SARA (saturados, arom?ticos,
resinas e asfaltenos). Os resultados mostraram um material equivalente ao petr?leo m?dio,
com grau API de 26,1, baixo teor de enxofre e com quantidade consider?vel de resinas e
asfaltenos, acima da apresentada na literatura. A degrada??o t?rmica e catal?tica da borra
oleosa de petr?leo foi realizada da temperatura ambiente at? 870?C, nas raz?es de
aquecimento de 5, 10 e 20oC min-1. As curvas geradas pela TG/DTG apresentaram uma
degrada??o mais acelerada da borra oleosa quando se introduziram os materiais
nanoestruturados. Esses resultados foram ratificados pela energia de ativa??o, calculada
atrav?s do m?todo de Flynn-Wall, em que a presen?a dos catalisadores reduziu a energia, em
especial na faixa de craqueamento, mostrando a efici?ncia do processo, principalmente para a
extra??o de materiais leves da composi??o da borra oleosa, como diesel e gasolina
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/13018 |
| Date | 04 November 2012 |
| Creators | Paulino, Ana Adalgisa Dias |
| Contributors | CPF:35530502415, http://lattes.cnpq.br/9770622597949866, Fernandes J?nior, Valter Jos?, CPF:42314070453, http://lattes.cnpq.br/1595902438130772, Coriolano, Ana Catarina Fernandes, CPF:83744479404, http://lattes.cnpq.br/5552621403067808, Carvalho, Florival Rodrigues de, CPF:31861598491, http://lattes.cnpq.br/4138199723221394, Ara?jo, Ant?nio Souza de |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Ci?ncia e Engenharia do Petr?leo, UFRN, BR, Pesquisa e Desenvolvimento em Ci?ncia e Engenharia de Petr?leo |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Format | application/pdf |
| 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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