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Transesterificação de óleo de soja com carbonato de dimetila catalisada por metóxido de potássio
(Universidade Federal de Santa Maria, 2017-08-04)
World biodiesel production is growing up every year mainly due to government policies that
require its consumption. However, biodiesel self-cost still makes it uncompetitive compared
to petrodiesel, and one of the reasons ...
Avaliação da interesterificação catalítica de óleo de macaúba com acetato de metila
(Universidade Federal de Santa Maria, 2017-01-27)
The world concern about the increasing of energy demand, depletion of fossil fuel reserves and global warming aroused interest in biodiesel production. Commonly produced through basic homogeneous transesterification, the ...
Produção de biodiesel via transesterificação sob catálise heterogênea com matéria-prima de menor valor agregado
(Universidade Federal de Santa Maria, 2021-02-12)
Avaliação de modificações pós-síntese em zeólita ZSM-5 comercial aplicada na esterificação de ácido oleico com acetato de metila
(Universidade Federal de Santa Maria, 2019-11-25)
Zeolites are considered the most important catalysts in industry due to their unique properties. Among these materials, ZSM-5 highlights because of its stability and versatility, presenting a wide range of applications. ...
Avaliação da reação de interesterificação do óleo de soja degomado e acetato de metila catalisada por fosfato de nióbio
(Universidade Federal de Santa Maria, 2021-10-04)
Biodiesel is considered the cleanest and most viable fuel in the world, an alternative to petroleum, which is less polluting and does not contribute to the increase in carbon dioxide emissions. The incessant search for new ...
Produção contínua de ésteres metílicos de ácidos graxos a partir do destilado da desodorização do óleo de soja e acetato de metila em condições supercríticas
(Universidade Federal de Santa Maria, 2021-10-06)
This work aimed to investigate the continuous production of fatty acid methyl esters (FAME) from Soybean Oil Deodorization Distillate (SODD) and Methyl Acetate (MA) under supercritical conditions. SODD has been characterized ...
Esterificação do ácido oleico e acetato de metila com zeólita WO3/USY: efeitos da impregnação do catalisador e modelagem cinética
(Universidade Federal de Santa Maria, 2020-01-20)
This work proposes the use of USY zeolite activated with tungsten oxide in the esterification of oleic acid with methyl acetate. Tunguistic acid was synthesized trought the acid treatment of sodium tungstate and was used ...
Estudo cinético da produção de ésteres metílicos com dimetil carbonato catalisada por fosfato de nióbio
(Universidade Federal de Santa Maria, 2017-07-31)
The aim of this study was to evaluate commercial niobium phosphate as heterogeneous catalyst in biodiesel production from oleic acid and low-cost raw materials using dimethyl carbonate as acyl receptor. Catalyst was ...
Produção de óleo de crambe refinado destinado ao processo de biodiesel
(Universidade Federal de Santa Maria, 2022-02-17)
The search for alternative sources of clean energy is a growing demand these days, as fossil resources are scarce and problems involving climate change are already occurring. Since a large part of the CO2 emission from ...
Avaliação do fosfato de nióbio como catalisador heterogêneo na esterificação de ácido oleico com acetato de metila
(Universidade Federal de Santa Maria, 2017-09-29)
The concern about global warming and the search for energy security are main responsible for promote the development of renewable fuels. Among biofuels, biodiesel is a potential successor to fossil fuels because it is an ...