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Síntese e caracterização de zeólitas ZSM-5 por diferentes rotas e seu emprego na produção de olefinas leves a partir de etanol
(Universidade Federal de Santa Maria, 2014-08-12)
This work aims the synthesis and study of ZSM-5 catalysts for the conversion of
ethanol to light olefins, especially, using an alternative and inexpensive route. The
ethanol emerges as a renewable source for the production ...
Produção de olefinas leves a partir de etanol em ZSM-5 sintetizada sem direcionador nitrogenado
(Universidade Federal de Santa Maria, 2015-03-05)
The petrochemical industry is currently strongly based on the production of light olefins ethylene and propylene, which are mainly produced by hydrocarbons from oil. Due to the environmental appeal and unstable oil market ...
Avaliação de parâmetros de desempenho de um motor de ignição por compressão operando em modo dual-fuel (diesel-etanol)
(Universidade Federal de Santa Maria, 2020-07-22)
The ethanol, a renewable and highly productive fuel in Brazil, appears as one of
the main fuels in order to comply with rigorous legislation on emissions of pollutants
and greenhouse gases on vehicle engines, agricultural ...
Efeitos da aplicação do resíduo da produção de etanol de batata sobre diferentes culturas
(Universidade Federal de Santa Maria, 2012-03-19)
The Brazil is one of the countries that produce waste, due to its large agroindustrial activity. Ethanol production stands out as one of the activities that generate more waste, due to the large volume of stillage generated, ...
Análise experimental e modelagem de motor de combustão interna operando com etanol super-hidratado
(Universidade Federal de Santa Maria, 2013-03-28)
The use of ethanol as fuel has encouraged many countries to improve their production for this purpose. However, costs relating to their current production model have been occasionally mentioned as a drawback to its use. ...
Desempenho de uma coluna de destilação, frente à variação das concentrações e vazões de alimentação utilizando-se solução hidroalcoólica padronizada
(Universidade Federal de Santa Maria, 2012-12-20)
In Brazil, especially in Rio Grande do Sul, there is a significant increase in ethanol production in small scale, i.e. in micro distilleries. These small-scale distilleries benefit small farmers, decentralize ethanol ...
Avaliação da viabilidade técnica e econômica da produção de etanol em planta piloto a partir da batata-doce (Ipomoea batatas)
(Universidade Federal de Santa Maria, 2014-07-22)
Biofuels gradually expand their potential share in power generation, due to the progressive reduction of fossil carbon reserves, combined with growing energy demands of society. Brazil has favorable conditions for the ...
Avaliação da viabilidade econômica da produção de leite em sistemas pastoril e confinado, com a utilização do resíduo de sorgo sacarino como volumoso
(Universidade Federal de Santa Maria, 2016-03-18)
The Brazilian agricultural sector constitutes itself as an important resource income for small producers all of whose manpower has been family character. The reduction of costs of the production process continues to make ...
Obtenção do álcool etílico hidratado, com graduação alcoólica para uso automotivo: validação de um processo em batelada
(Universidade Federal de Santa Maria, 2010-03-19)
One of the most used for separation of alcohol and water is distillation. Traditionally the production of hydrated ethanol fuel is produced by large distilleries, which were freestanding or attached. A problem found for ...
Otimização do processo de hidrólise da mandioca in natura, com o uso de enzimas amilolíticas e pectinolítica
(Universidade Federal de Santa Maria, 2011-06-03)
Cassava is an important source of nutrients, and also of great importance as agro-industrial raw materials and can be used to produce ethanol. Through the process of hydrolysis, acid or enzyme, starch is converted into ...