Results 91 to 100 of about 744,512 (295)

Avaliação do extrato da semente do maracujá (Passiflora edulis Sims) obtido por extração com dióxido de carbono supercrítico: influência do emprego de co-solvente e possíveis impactos da aplicação no processo de transesterificação com fluídos supercríticos [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2013.Interesses políticos, preocupações acerca de questões ambientais e a dependência energética de ...
Canozzi, Joana Bercht
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Permeation of supercritical CO2 through dense polymeric membranes

, 2019
Supercritical carbon dioxide (scCO2) is used in the food industry as a water-extracting drying agent. Once saturated with water, the scCO2 needs to be regenerated. A promising way of drying scCO2 is by using H2O permeable membranes.
Nijmeijer, Kitty, Miedema, H., Shamu, Andrew, Nijmeijer, K., Shamu, A., Miedema, Henk, Borneman, Zandrie, Dunnewold, M., Dunnewold, Marije, Borneman, Z.   +9 more
core   +1 more source

Supercritical CO2 extraction from food matrices with optimization of main operating variables [PDF]

, 2022
The aim of this work is to carry out two types of supercritical CO2 extraction (SFE) from food matrices and to optimize the main important extraction variables.
Pannocchia, Benedetta
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Synthesis and characterization of polymer networks obtained by conventional radical and RAFT copolymerization processes in supercritical carbon dioxide

The Canadian Journal of Chemical Engineering, EarlyView.
Conventional and RAFT dispersion copolymerizations of HEMA and EGDMA in supercritical CO2 are compared in terms of swelling index (crosslink density), morphology, particle size distribution, and modular differential scanning calorimetry. Abstract The syntheses of net‐poly((2‐hydroxyethylene methacrylate)‐co‐(ethylene glycol dimethacrylate ...
Patricia Pérez‐Salinas, Karen Mozeltzin Gómez‐Cruz, Alberto Rosas‐Aburto, Maribel Pineda‐Herrera, Humberto Vázquez‐Torres, Graeme Moad, Eduardo Vivaldo‐Lima   +6 more
wiley   +1 more source

Catalytic Hydrothermal Liquefaction of Polyethylene With Pt/C to Tune Product Selectivity

CleanMat, EarlyView.
Pt/C‐catalyzed hydrothermal liquefaction of polyethylene in supercritical water enables time‐dependent control of product selectivity, producing paraffin‐rich oils at shorter reaction times and aromatic‐enriched products at longer times without external hydrogen. ABSTRACT Hydrothermal liquefaction (HTL) represents a promising thermochemical pathway for
Taofeng Lu, Wan‐Ting Chen
wiley   +1 more source

Molecular insight into the competitive adsorption mechanism of supercritical CO2/Crude oil in shale composite model

Petroleum
With the continuous growth of global energy demand, shale oil, as an important unconventional oil and gas resource, is increasingly highlighting its strategic position.
Yuanxiu Sun, Yijie Ma, Hongrui Guo, Jiang Wu, Liping Zhang, Songqi Li   +5 more
doaj   +1 more source

Otimização de um sistema de separação da mistura CO2 supercrítico/limoneno com membranas de osmose inversa [PDF]

, 2006
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.Neste trabalho é proposta uma metodologia de otimização de um sistema de separação da mistura CO2 supercrítico/limoneno ...
Carlson, Luiz Henrique Castelan
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Sustainable Hydrogen Production by Glycerol and Monosaccharides Catalytic Acceptorless Dehydrogenation (AD) in Homogeneous Phase

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Sustainable hydrogen production can be obtained from hydogen‐rich biomass‐derived organic molecules through Acceptorless Dehydrogenation (AD) reactions. Glycerol and sugars are available in large quantities from industry and can be successfully used as substrates in AD protocols, in the presence of tailored, selective, easily tunable and thermally ...
Sylwia Kostera, Luca Gonsalvi
wiley   +1 more source

Impregnation of non-steroidal anti-inflammatory drugs (ibuprofen and ketoprofen) onto mesoporous silica SBA-15 using supercritical CO2

Journal of CO2 Utilization
Ibuprofen and ketoprofen were impregnated onto SBA-15 type mesoporous silica using the supercritical fluid deposition (SCFD) method with supercritical carbon dioxide (CO2) as the solvent at temperatures ranging from 313 K to 343 K and a pressure of 15 ...
Kairi Yamamoto, Ikuo Ushiki
doaj   +1 more source

Modelagem matemática do processo de extração supercrítica de óleo essencial de Ho-Sho (Cinnamomum camphora Nees & Eberm var. linaloolifera Fujita) utilizando CO2 [PDF]

, 2003
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Química.Neste trabalho estudou-se o processo de extração supercrítica de óleo essencial de folhas de uma variedade de Canforeira ...
Steffani, Evandro
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