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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Análise físico-química e ecotoxicológica de combustíveis obtidos a partir do craqueamento termo-catalítico de polímeros / Physico-chemical and ecotoxicological fuel obtained from the thermo-catalytic cracking of polymers

TAVARES, Maria Gizelda de Oliveira 28 March 2008 (has links)
Made available in DSpace on 2014-07-29T12:05:39Z (GMT). No. of bitstreams: 1 tese_pre_text_Gizelda.pdf: 110896 bytes, checksum: 62cbe3b7eacec8f8144ccf9ac3a12bd9 (MD5) Previous issue date: 2008-03-28 / The present paper describes the theoretical reference for the study of the polymeric thermal catalytic cracking. A review on these type of materials it was accomplished, beginning for an introduction on new sources of alternative energy. Recycling plastics used as alternative sources fuels was evaluated under the environmental and point of view physical -chemical..The studies permitted validate the developed methodology in the research.. Ecotoxicology was used as a fundamental tool to evaluate the toxicity levels of alternative fuels sources, and the obtained levels was compared to the thoroughly used fuels, such as diesel and gasoline. And the Histology studies generated in the ecotoxicology analyses, was used as a supporting tool to obtain the conclusions. / Essa pesquisa descreve o referencial teórico para o estudo do craqueamento termocatalítico de polímeros. Uma revisão desse tipo de material foi realizada começando com uma introdução sobre novas fontes de energias alternativas. A reciclagem dos plásticos usados como fonte alternativa de combustíveis, foi avaliada sob o ponto de vista ambiental e físico químico. O estudo permitiu validar a metodologia desenvolvida na pesquisa. A Ecotoxicologia foi usada como importante ferramenta para avaliar e comparar os níveis de toxicidade dos novos combustíveis obtidos na pesquisa, com relação aos combustíveis amplamente utilizados, tais como o diesel e a gasolina. E usou-se a Histologia como suporte de apoio aos resultados gerados nas análises ecotoxicológicas para se obter as conclusões.

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