Buscar
Itens para a visualização no momento 1-8 of 8
Pré-tratamento de casca de arroz utilizando solventes eutéticos (CLC: glicerol e CLC: ureia) e hidrólise subcrítica visando à obtenção de açúcares
(Universidade Federal de Santa Maria, 2021-05-04)
In this research, the rice husks were submitted to pretreatments with deep eutectic
solvents in order to enrich the cellulose content and reduce the lignin contents. Four
mixtures of deep eutectic solvents were evaluated, ...
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 ...
Análise experimental e numérica da remoção dos herbicidas ácido diclorofenoxiacético (2,4 D) e atrazina de efluentes líquidos
(Universidade Federal de Santa Maria, 2021-09-15)
The present work studies a batch adsorption process for the removal of herbicides that, due to their large consumption on the soil surface of agricultural plantations, have been accumulating and may exceed the limits of ...
Hidrólise com água subcrítica do bagaço de sorgo sacarino (Sorghum Bicolor L. Moench) pré-tratado com o líquido iônico [Bmim]Cl visando a obtenção de bioprodutos e açúcares
(Universidade Federal de Santa Maria, 2021-10-22)
In this research, the saccharine sorghum bagasse was submitted to a pre-treatment
with an ionic liquid, 1-butyl-3-methylimidazolium [Bmim] Cl in order to evaluate the
effect on the undissolved solid after the pre-treatment ...
Estudo do equilíbrio líquido-líquido de sistemas contendo misturas de diesel/biodiesel/etanol/1-butanol
(Universidade Federal de Santa Maria, 2021-03-02)
Diesel fuel is a long-chain hydrocarbon mixture and its combustion results in emissions containing particulate matter (PM), hydrocarbons (HC), carbon monoxide (CO), carbon dioxide (CO2) and nitrogen oxides (NOx), which are ...
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 ...
Avaliação do uso de ultrassom para a conversão de ácido tânico visando à obtenção de ácido gálico
(Universidade Federal de Santa Maria, 2021-11-18)
Tannic acid is a macromolecule belonging to the hydrolysable tannins group, with multiple units of gallic acid linked to a central sugar. This compound is considered to have a low level of biodegradability and, under ...
Modificação de nanotubos de carbono por impregnação de nanopartículas metálicas via síntese verde para adsorção de glifosato
(Universidade Federal de Santa Maria, 2021-09-27)
In the present work, commercial multiwalled carbon nanotubes (MWCNTs) were modified
via green synthesis for impregnation of metallic nanoparticles (MPNs), evaluating the
influence of plant extracts (pomegranate leaves, ...