Natural Gas Market
Mostrando 1-12 de 51 artigos, teses e dissertações.
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1. Multi-objective Optimization of Supercritical Water Gasification of Leftover Brazilian Ginseng Roots After Phytochemical Recovery Steps
Abstract The present study aims at studying the supercritical water gasification (SCWG) of leftover Brazilian ginseng roots after phytochemicals extraction for synthetic natural gas (SNG) production, envisioning the development of a promising Brazilian ginseng roots valorization using sub/supercritical fluids in different steps. A multi-objective energetic-e
Braz. J. Chem. Eng.. Publicado em: 2017-07
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2. Inhibitory activity of Syzygium aromaticum and Cymbopogon citratus (DC.) Stapf. essential oils against Listeria monocytogenes inoculated in bovine ground meat
This research evaluated the antimicrobial effect of the clove (Syzygium aromaticum) and lemongrass (Cymbopogon citratus (DC.) Stapf.) essential oils (EOs) against Listeria monocytogenes ATCC 19117 growth added to bovine ground meat stored under refrigeration (5 ± 2 °C) for three days. The EOs, extracted by hydrodistillation and analyzed by gas chromatograp
Braz. J. Microbiol.. Publicado em: 20/08/2013
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3. Química e sustentabilidade: novas fronteiras em biocombustíveis
This contribution discusses the state of the art and the challenges in producing biofuels, as well as the need to develop chemical conversion processes of CO2 in Brazil. Biofuels are sustainable alternatives to fossil fuels for providing energy, whilst minimizing the effects of CO2 emissions into the atmosphere. Ethanol from fermentation of simple sugars and
Quím. Nova. Publicado em: 2013
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4. Química Sem Fronteiras: o desafio da energia
Coal, natural gas and petroleum-based liquid fuels are still the most widely used energy sources in modern society. The current scenario contrasts with the foreseen shortage of petroleum that was spread out in the beginning of the XXI century, when the concept of "energy security" emerged as an urgent agenda to ensure a good balance between energy supply and
Quím. Nova. Publicado em: 2013
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5. Low and medium temperature fuel cells: experimental tests and economic assessment / Low and medium temperature fuel cells: experimental tests and economic assessment
This Masters dissertation aims to study technical potentialities of Fuel Cell technology, including the economical benefits that can provide compared with public grid as well. Thus, the dissertation has been focused in two main parts: the first concerns in an experimental approach to supply electrical power to the public grid using a Polymer Electrolyte Memb
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/12/2012
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6. Energetic use of wood waste in one center for the production of red ceramics in São Paulo State / Uso energético de resíduos madeireiros em um pólo de produção de cerâmicas vermelhas do Estado de São Paulo
The use of forest biomass is an important alternative of renewable energy source, economic, technical and environmentally viable, fighting for space with other energy sources, more expensive or non-renewable, such as natural gas, electricity, diesel and LPG. Within the industrial sector, biggest consumer of biomass energy, the segment of red ceramics represe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/08/2012
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7. Introdução de misturas de GNV e hidrogênio (Hidrano) em veículos convencionais no Brasil e seus impactos econômicos, ambientais e energéticos / Introduction of CNG and hydrogen (HCNG) for conventional vehicles and its economic, environmental and energy impacts
Several strategies have been proposed to introduce hydrogen in the economy specifically in the transport sector in order to reduce environmental impacts of conventional fuels. One of the strategies implies in adding hydrogen to compressed natural gas (HCNG), making use of the existing refueling stations and natural gas fleet. Thus the costs and time for the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/07/2012
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8. Modelo Regulatório e risco de mercado: uma comparação entre as empresas de distribuição de gás e energia elétrica norte americanas e suas congêneres no Brasil, Chile e Argentina / Regulatory model and market risk: a comparison between the distribution companies of gas and electricity and their North American counterparts in Brazil, Chile and Argentina
A legislação brasileira estabelece que o Estado tem a obrigação de preservar o equilíbrio econômico financeiro das concessões de serviços públicos. Assim o Estado deve garantir que as tarifas dessas concessões sejam capazes de cobrir os seus custos operacionais e ainda ofereçam um retorno justo para os agentes privados que nelas investiram. Nas co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/04/2012
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9. Oportunidades e alternativas para a mudança da matriz energética peruana : o papel do gás natural / Opportunities and alternatives for change of the Peru s energy matrix : the role of natural gas
In recent years there have been several discussions and analysis on a greater use of natural gas in Peru. This was part of the agenda during the presidential debates in early 2011. During these debates, the importance of developing a domestic demand for natural gas rather than gas exports was the central theme of discussion. This thesis analyzes the alternat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2012
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10. Alternativas técnico produtivas para o aproveitamento do gás natural da camada pré-sal / Technical productive alternatives to the use of natural gas in pre-salt layer
The Brazilian reserves of oil and natural gas will present a significant growth from the development of the reserves of the pre-salt layer. According to estimates prepared by the EPE and the EIA, the next twenty years, the supply of natural gas will exceed demand. As the transportation sector natural gas has great importance in the formation of the cost of e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/09/2011
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11. SENTIMENT ANALYSIS FOR FINANCIAL NEWS ABOUT PETROBRAS COMPANY / CLASSIFICAÇÃO DE SENTIMENTO PARA NOTÍCIAS SOBRE A PETROBRAS NO MERCADO FINANCEIRO
A huge amount of information is available online, in particular regarding financial news. Current research indicate that stock news have a strong correlation to market variables such as trade volumes, volatility, stock prices and firm earnings. Here, we investigate a Sentiment Analysis problem for financial news. Our goal is to classify financial news as fav
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/07/2011
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12. Atual estágio de desenvolvimento da tecnologia GTL e perspectivas para o Brasil
Although the production of liquid fuels from coal, natural gas (CTL and GTL processes) and other carbon sources has been discovered 90 years ago, the interest was renewed in the last years motivated by stranded gas reserves and by petroleum market instability. This review intends to show the scenario of these technologies nowadays, discussing the applied tec
Química Nova. Publicado em: 2011