Buscar
Mostrando ítems 1-10 de 552
Produção de biodiesel por transesterificação utilizando banho ultrassônico
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilDepartamento Acadêmico de Engenharia QuímicaEngenharia QuímicaUTFPR, 2019-06-19)
The most widely used method for producing biodiesel is the transesterification reaction, in which oil and excess alcohol are mixed with a catalyst. However, because the reactants are partially miscible it is necessary to ...
Análise termoeconômica da produção de biodiesel: aspectos técnicos, econômicos e ecológicos
(Universidade Estadual Paulista (UNESP), 2014)
Two-step biodiesel production from Jatropha curcas crude oil using SiO2 HF solid catalyst for FFA esterification step
(2012-11-28)
A high quality biodiesel was produced from Mexican Jatropha curcas crude oil (JCCO) by a two step catalyzed
process. The free fatty acids (FFA) were first esterified with methanol, catalyzed by a solid catalyst:
SiO2 ...
Biodiesel CO2 emissions: A comparison with the main fuels in the Brazilian market
(Elsevier B.V., 2009-02-01)
The use of biodiesel is increasing as an attractive fuel due to the depleting fossil fuel resources and environmental degradation. This paper presents results of an investigation on the potentials of biodiesel as an ...
Biodiesel CO2 emissions: A comparison with the main fuels in the Brazilian market
(Elsevier B.V., 2009-02-01)
The use of biodiesel is increasing as an attractive fuel due to the depleting fossil fuel resources and environmental degradation. This paper presents results of an investigation on the potentials of biodiesel as an ...
Síntese e modificação química de biodiesel para formação de epóxidos e carbonatos cíclicos com potencial biodegradabildade
(Universidade Estadual Paulista (Unesp), 2015-05-06)
The chemical modification of biodiesel has been an interesting proposal for obtaining various oleochemical compounds with similar porperties and aplications to petroleum derivates, with the difference of being obtained ...
Comparação de emissões provenientes da combustão de biodiesel e de suas misturas com o diesel em motor do ciclo diesel e aspectos econômicos
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Química e Biologia, 2012-06-22)
The use of biodiesel is an alternative to replace diesel in diesel engines without modifying the operation and performance of such equipment. This in order to reduce emissions of pollutants harmful to the environment and ...
Development of a thermoeconomic methodology for the optimization of biodiesel production - Part I: Biodiesel plant and thermoeconomic functional diagram
(2013-04-02)
This work developed a methodology that uses the thermoeconomic functional diagram applied for allocating the cost of products produced by a biodiesel plant. The first part of this work discusses some definitions of exergy ...
Development of a thermoeconomic methodology for the optimization of biodiesel production - Part I: Biodiesel plant and thermoeconomic functional diagram
(2013-04-02)
This work developed a methodology that uses the thermoeconomic functional diagram applied for allocating the cost of products produced by a biodiesel plant. The first part of this work discusses some definitions of exergy ...