Buscar
Itens para a visualização no momento 1-10 of 15
Recuperação de beta-caroteno de óleo de palma bruto através de operações de adsorção e dessorção: estudos de cinética, equilíbrio e termodinâmica
(Universidade Federal de Santa Maria, 2023-01-12)
The palm oil is used in several industrial segments. During the palm oil refining
process, minor compounds such as β-carotene, phytosterols, squalene and tocotrienols are lost
due to the process conditions applied. Among ...
Simulação de processos catalíticos para a produção de biodiesel sem glicerol - uma análise técnica, econômica e energética
(Universidade Federal de Santa Maria, 2023-02-15)
Although the use of biodiesel presents many economic, social and environmental
advantages, the biodiesel production still has a high cost. Most production processes
use alcohol as acyl receptor, producing glycerol as a ...
Avaliação das características de bio-óleo e biochar produzidos por pirólise a partir de biomassas lignocelulósicas
(Universidade Federal de Santa Maria, 2023-03-09)
Lignocellulosic biomass is considered one of the alternative renewable resources with the
potential to supply the high world energy demand, by reducing dependence on fossil fuels. The
use of this valuable resource as raw ...
Adsorção de corante alaranjado de metila aplicando hidróxidos duplos lamelares de Ca/Fe suportado em biochar de serragem de eucalipto
(Universidade Federal de Santa Maria, 2023-02-28)
Contamination of water resources is a topic much discussed by society due to the serious
problems it entails for public health. Among several pollutants, dyes represent the largest
group of organic contaminants. In view ...
Polimento de efluentes industriais através da adsorção com biochar proveniente de resíduos da vinificação
(Universidade Federal de Santa Maria, 2023-02-10)
The applicability of biochar in water treatment has been gaining interest due to its sustainability and low production
cost. Thus, this work proposes the use of Biochar from Serra Gaúcha (BSG) as an adsorption element for ...
Preparação e caracterização de carvão ativado magnético obtido a partir da serragem de madeira sapelli (Entandrophragma cylindricum) para adsorção do corante azul brilhante
(Universidade Federal de Santa Maria, 2023-03-10)
The contamination of water bodies by dyes has been a problem to be fought because the large
amounts of effluents released into water bodies are harmful to the environment and living
beings. Thus, it is necessary to develop ...
Comparação de modelos de aprendizado de máquina interpretáveis na predição de calor de combustão e de formação
(Universidade Federal de Santa Maria, 2023-04-24)
The determination of physical-chemical properties for substances is of paramount importance
in the field of chemical engineering, as these are related to equipment sizing, operational
conditions, and process efficiencies. ...
Obtenção e caracterização de carvão ativado a partir de resíduos de casca de castanha do pará (Bertholletia excelsa) e sua aplicação na adsorção de fenol
(Universidade Federal de Santa Maria, 2023-03-29)
The water contamination by organic compounds can cause damage to the environment and
human beings. Adsorption is a promising process for removing these pollutants. Agricultural
residues are a great alternative as precursors ...
Processamento hidrotérmico da casca de aveia em modo semi-contínuo
(Universidade Federal de Santa Maria, 2023-06-30)
Oat husk is a low-cost by product obtained mainly from agro-industrial waste, in this
work it was found that this lignocellulose biomass has great potential as a source of
renewable, clean and sustainable energy. Subcritical ...
Recuperação de cério e lantânio lixiviados de fosfogesso por adsorção utilizando resíduos de uva
(Universidade Federal de Santa Maria, 2023-08-25)
Phosphogypsum is a byproduct of the fertilizer industry with a high environmental impact,
formed during the production of phosphoric acid from phosphate rock. It mainly comprises
gypsum and may contain impurities, including ...