Pyrolisis
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Effect of the Acid Treatment of Montmorillonite Clay in the Oleic Acid Esterification Reaction
Biodiesel is a fuel renewable, biodegradable and environmentally correct fuel, which can be obtained from the esterification reactions, transesterification and pyrolisis. Montmorillonite is a clay mineral of the smectite group and are of great interest for industrial processes such as catalysis and adsorption. Acid activation of clay minerals is one of the m
Mat. Res.. Publicado em: 2015-04
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2. LaCrO3 composite coatings for AISI 444 stainless steel solid oxide fuel cell interconnects
Doped lanthanum chromite-based ceramics are the most widely used interconnector material in solid fuel cells (SOFC) since they exhibit significant electrical and thermal conductivity, substantial corrosion resistance and adequate mechanical strength at ambient and high temperatures. The disadvantage of this material is its high cost and poor ductility. The a
Mat. Res.. Publicado em: 23/10/2012
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3. Emission factor of single pellet cake seed Jatropha curcas in a fix bed reactor
The objective of this study is to evaluate the emission factor of oil cake seed Jatropha curcas that was formed into pellets with three parameters: pyrolisis, densification and air flow rate. The effect of pyrolisis was investigated using four samples of pellet: nonpyrolysis pellet, 90 minutes pyrolysis pellet, 120 minutes pyrolysis pellet, 150 minutes pyrol
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2012-06
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4. Pyrolisis parameters evaluation in the biochar preparation process.
2010
MEETING OF THE INTERNATIONAL HUMIC SUBSTANCES SOCIETY. Publicado em: 2011
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5. Compósitos de matriz cerâmica contendo cargas com diferentes condutividades elétricas / Ceramic matrix composites containing fillers with different electrical conductivities
Neste trabalho pretendeu-se obter compósitos de matriz cerâmica à base de oxicarbeto de silício, SiCxOy, carregados com cargas de diferentes naturezas (grafite (GCM), carbeto de silício (SCM) e siliceto de tungstênio (WCM)), de modo a explorar a influência destas cargas na condutividade das vitrocerâmicas obtidas. Os CMC foram preparados pela piróli
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/03/2010
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6. Desenvolvimento de métodos analíticos para determinação de As, Cd, Ni e Pb em batata e em mandioca produzidas em regiões mineiras empregando espectrometria de absorção atômica em forno de grafite
In this dissertation methods to determine arsenic, lead, nickel and cadmium in food are described, more precisely in potato and manioc, grown in the Minas Gerais state territory in Brazil, which is also known as "Quadrilátero Ferrífero" (an area in the state where mining for ore and other metals is a current major economic activity). In the methods propose
Publicado em: 2009
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7. Complex-shaped ceramic composites obtained by machining compact polymer-filler mixtures
Research in the preparation of ceramics from polymeric precursors is giving rise to increased interest in ceramic technology because it allows the use of several promising polymer forming techniques. In this work ceramic composite pieces were obtained by pyrolysis of a compacted mixture of a polysiloxane resin and alumina/silicon powder. The mixture consists
Materials Research. Publicado em: 2005-06
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8. MANAGEMENT PROCESS INCINERATION OF HEALTH SOLIDS RESIDUES: APLICATION IN MATERIALS AND REUSING THE THERMIC ENERGY / PROCESSO DE GESTÃO EM INCINERAÇÃO DE RESÍDUOS SÓLIDOS DE SERVIÇOS DE SAÚDE: UMA APLICAÇÃO EM MATERIAIS E APROVEITAMENTO ENERGÉTICO
This dissertation covers aspects related to the incineration of the sanitary solid waste, using the thermic energy and ashes for other applications having in mind the consequences to the environment. In fact one of the major concern related to the environment is the continuous and cumulative generation of solid waste by the humanity. Therefore, we will cover
Publicado em: 2004
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9. Obtenção de nanocompositos de oxidos semicondutores inseridos em vidro poroso Vycor via decomposição de precursores metalorganicos
The aim of the present work was the preparation of nanocomposites containing semicondutor oxides such as Bi2O3, CeO2, CuO and Porous Vycor Glass (PVG). In the employed methodology, PVG plates were impregnated with metallorganic precursors which yield the desired oxides throught thermal decomposition. Bi(III), Ce(III) and Cu(II) 2-ethil hexanoates used as met
Publicado em: 2000
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10. Contribuição a simulação computacional do processo de LPCVD
This work deals with the study and simulation of LPCVD-Low Pressure Chemical Vapour Deposition- a basic process for thin film deposition. The reaction of silicon deposition by silane pyrolisis is adopted for its simplicity and importance without sacrifieing the quality of treatment. To begin with, we present the atmospheric presure CVD technique in the light
Publicado em: 1990