Gas To Liquids
Mostrando 1-12 de 40 artigos, teses e dissertações.
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1. Polyurethane/poly (Ionic Liquids) Cellulosic Composites and their Evaluation for Separation of CO2 from Natural Gas
The development of both versatile and inexpensive sorbents for CO2/CH4 separation has become one of the greatest challenges to the environment and natural gas processing. This study reports the preparation and characterization of polyurethane (PU)/ cellulose based poly(ionic liquid)(CPIL) composites for CO2/CH4 separation. PU matrix was reinforced with CPIL
Mat. Res.. Publicado em: 20/01/2020
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2. SORÇÃO DE CO2 UTILIZANDO LÍQUIDO IÔNICO ADITIVADO COM EXTENSORES DE ÁREA SUPERFICIAL
The study of environmentally friendly CO2 sorption agents are growing due to the need of mitigate this gas from atmosphere. Ionic Liquids (ILs) present the advantage of having low vapor pressures and being chemically and thermally stable. Besides, their properties can be designed by varying the groups of the cation or anion. Yet, these compounds present a lo
Quím. Nova. Publicado em: 2018-06
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3. FASES ESTACIONÁRIAS DE LÍQUIDOS IÔNICOS EM CROMATOGRAFIA GASOSA: FUNDAMENTOS, AVANÇOS RECENTES E PERSPECTIVAS
Since their original discovery in 1914, ionic liquids (IL) have been widely examined and explored in chemistry due to their unique physical and chemical properties. Ionic liquids are collectively known as organic salts and have melting points of 100 °C or under. The molten salts most employed in analytical chemistry, including gas chromatography (GC), consi
Quím. Nova. Publicado em: 2016-01
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4. Modeling vapor liquid equilibrium of ionic liquids + gas binary systems at high pressure with cubic equations of state
Ionic liquids (IL) have been described as novel environmentally benign solvents because of their remarkable characteristics. Numerous applications of these solvents continue to grow at an exponential rate. In this work, high pressure vapor liquid equilibria for 17 different IL + gas binary systems were modeled at different temperatures with Peng-Robinson (PR
Braz. J. Chem. Eng.. Publicado em: 2013-03
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5. Citotoxic activity evaluation of essential oils and nanoemulsions of Drimys angustifolia and D. brasiliensis on human glioblastoma (U-138 MG) and human bladder carcinoma (T24) cell lines in vitro
The species Drimys angustifolia Miers and D. brasiliensis Miers, commonly known as "casca-de-anta", have in their leaves essential oils that can confer cytotoxic effects. In this study, we evaluated the citotoxic effects of the volatile oils from these two species. We also proposed a nanoemulsion formulation for each of the species and assessed the in vitro
Rev. bras. farmacogn.. Publicado em: 22/11/2012
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6. Mobilidade ionica acoplada a espectrometria de massas : interferencia de parametros do drift gas na resolução de anilinas substituidas e determinação da mobilidade intrinsica de agregados de liquidos ionicos / Ion mobility mass spectrometry : interference of drift gas parameters on the resolution of substituted anilines and determination of intrinsic mobility of ionic liquids aggregates
Ion mobility spectrometry separates ions with different sizes or spacial conformations in gas phase according to the time they take to travel through a gas under the influence of an electrical field. Coupling this technique to mass spectrometry provides an extremely versatile tool, able to investigate molecular structure and separate complex samples, includi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2010
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7. GestÃo e caracterizaÃÃo dos resÃduos sÃlidos da Lubnor/PETROBRAS: estudo de caso / Management and characterization os solid waste Lubnor/PETROBRAS: a case study
The situation of solid waste in Brazil is worrying, especially with regard to final disposal, as the increase in the wasteâs generation was not followed by a growth of infrastructure. The environmental issue, with the onset and worsening of environmental problems become more important to humans. Most of these problems is due to industrial waste origin, as m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/08/2009
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8. Enhancing cobalt dispersion in supported Fischer-Tropsch catalysts via controlled decomposition of cobalt precursors
Fischer-Tropsch synthesis is a part of Gas-to Liquids (GTL), Biomass-to-Liquids (BTL) and Coal to Liquids (CTL) technologies, which produce alternatives clean fuels from natural gas, biomass and coal. The catalytic performance of cobalt catalysts in Fischer-Tropsch synthesis strongly depends on the size of cobalt particles in nanoscale range (6-30 nm). Cobal
Brazilian Journal of Physics. Publicado em: 2009-04
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9. Gas separation unit by adsorption : simulation and adsorbent characterization / Unidade de separação de gases por adsorção : simulação e caracterização do adsorvente
Zeolites are crystalline porous materials found naturally or synthetically manufactured with high adsorbent power. The study of this material as an industrial adsorbent began in the mid 50 s. The fields of zeolite application are rather wide. Zeolites have been used as adsorbents for purification of gases and liquids, as catalysts for petroleum refinig and f
Publicado em: 2009
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10. AVALIAÇÃO DO IMPACTO ECONÔMICO DE UM PROJETO DE PESQUISA E DESENVOLVIMENTO NO VALOR DE UMA PLANTA GAS-TO-LIQUIDS: USANDO A TEORIA DAS OPÇÕES REAIS / EVALUATION OF THE ECONOMIC IMPACT IN THE VALUE OF A GAS-TO-LIQUIDS FACILITY CAUSED BY A RESEARCH AND DEVELEOPMENT TECNOLOGICAL PROJECT: USING THE THE REAL OPTIONS THEORY
When making decisions, the figure of the manager comes across different types of uncertainties. Among them, the time to conclude a project. The characteristics of innovation and novelty in Research and Development Projects applied to technology, further reinforces the caution to be taken regarding the time dimension at the moment of the decision, since the p
Publicado em: 2008
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11. Co-pirólise de polipropileno pós-consumo com gasóleo / Co-pyrolysis of polypropylene residues with gas-oil
In this study, the process of co-pyrolysis of polypropylene (PP) residues with gas-oil was evaluated, varying the temperature and the amount of polypropylene fed to the reactor. The co-pyrolysis is a promising route to minimize the environmental impact caused by the inadequate disposal of plastics, preventing its accumulation in landfields and giving a bette
Publicado em: 2008
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12. "Produção de óleo diesel limpo a partir do gás natural: estudo de viabilidade técnico-econômica para a instalação de uma planta GTL (gas-to-liquids) no Brasil" / Production of liquid hydrocarbons employing Natural Gas: a study of the technical and economical feasibility of a GTL plant in Brazil
CALLARI. R. Produção de óleo diesel limpo a partir do gás natural: estudo de viabilidade técnico-econômica para a instalação de uma planta gtl (gas-to-liquids) no Brasil. 2007. 84 p. Tese de Mestrado ? Programa Interunidades de Pós-Graduação em Energia. Universidade de São Paulo. A tecnologia de produção de combustíveis sintéticos iniciou seu
Publicado em: 2007