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Previous issue date: 2016-07-15 / New searches for technologies that allow to obtain fuels with the same
efficiency of fossil fuels, however, with renewable raw material are increasingly on
the agenda in the current world scenario. Biodiesel, derived from vegetable or animal
oils, fits perfectly in this context, above all, biodiesel from frying oil that still brings to
the surface the resolution of a major environmental problem: the incorrect disposal of
oils that are harmful to the environment. However, in its transesterification, some
undesirable by-products are found that can to cause problems in the automobile
engine. For resolt this problem requires the purification of this biofuel. Purification can
be obtented by two routes: wet and dry, the wet being most commonly used in
industry. In this type of purification where the water is used for the washing of
biodiesel, after purification, this contaminated water also entails another
environmental problem: a highly polluted effluent. On the other hand, the dry
purification makes use of an adsorbent that generates less effluent and, after use, is
usually grounded by its users. In this work studed the recovery of an adsorbent that
has been widely used, the Magnesol, and him reuse has been studied for cost
reduction purposes in the biodiesel purification process. After the creation of the
methodology of recuperation of Magnesol, some solvents were tested and, with the
elemental analysis of Carbon, it was verified which solvent presented better
performance in the adsorbent recovery, being THF the highlight of this work. The
analysis of FTIR, TGA and MEV showed that the adsorbent recovery was efficient,
and the chromatography analysis showed that the performance of biodiesel
purification with recovered Magnesol should be more worked so that it can be more
efficient as it is when used virgin. / Novas procuras por tecnologias que permitam obter-se combust?veis com a
mesma efici?ncia dos combust?veis f?sseis, por?m, com mat?ria prima renov?vel
est?o cada vez mais em pauta no cen?rio mundial. O biodiesel, proveniente de ?leos
vegetais ou animais, encaixa-se perfeitamente neste contexto, sobretudo, o biodiesel
proveniente de ?leo de fritura que ainda traz ? tona a resolu??o de um grande
problema ambiental: o despejo incorreto de ?leos que s?o prejudiciais ao meio
ambiente. Por?m, em sua transesterifica??o, s?o encontrados alguns subprodutos
indesej?veis e que podem acarretar problemas no motor do autom?vel, sendo
necess?ria a purifica??o deste biocombust?vel. A purifica??o pode ser realizada por
duas vias: ?mida e seca, sendo a ?mida mais comumente utilizada na ind?stria.
Neste tipo de purifica??o ? utilizado ?gua para a lavagem do biodiesel e, ap?s a
purifica??o, esta ?gua contaminada tamb?m acarreta em outro problema ambiental:
um efluente altamente polu?do. A purifica??o via seca faz a utiliza??o de um
adsorvente que gera menos efluentes e, ap?s sua utiliza??o, costuma ser
descartado em aterros sanit?rios pelos seus usu?rios. Neste trabalho foi estudado a
recupera??o de um adsorvente que vem sendo muito utilizado, o Magnesol, bem
como, sua reutiliza??o, para fins de redu??o de custos no processo de purifica??o do
biodiesel. Ap?s a cria??o da metodologia de recupera??o do Magnesol, alguns
solventes foram testados e, com a an?lise elementar de carbono, foi verificado qual
solvente apresentou melhor performance na recupera??o do adsorvente, sendo THF
o destaque deste trabalho. As an?lises de FTIR, TGA e MEV mostraram que a
recupera??o do adsorvente foi eficiente, j? a an?lise de cromatografia gasosa
mostrou que o desempenho da purifica??o do biodiesel com Magnesol recuperado
dever? ser mais trabalhada para que o mesmo possa ser mais eficiente tal qual
quando utilizado ainda virgem.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede2.pucrs.br:tede/7662 |
| Date | 15 July 2016 |
| Creators | Coelho, Bruna Naidon |
| Contributors | Lourega, Rogerio Vescia, Seferin, Marcus |
| Publisher | Pontif?cia Universidade Cat?lica do Rio Grande do Sul, Programa de P?s-Gradua??o em Engenharia e Tecnologia de Materiais, PUCRS, Brasil, Faculdade de Engenharia |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da PUC_RS, instname:Pontifícia Universidade Católica do Rio Grande do Sul, instacron:PUC_RS |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | -7432719344215120122, 500, 500, 500, -655770572761439785, 4518971056484826825 |
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