Gasification Systems
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. THE ROLE OF CHAR FORMATION IN EQUILIBRIUM MODELING OF GASIFICATION PROCESSES
ABSTRACT This work aims to develop and validate a model based on chemical equilibrium to predict the composition of syngas produced by gasification of woody biomass (sawdust). The model uses Gibbs Energy minimization to evaluate the composition of the system in chemical equilibrium. The results are validated by comparison between experimental data from a gas
Eng. Agríc.. Publicado em: 2020-04
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2. Valorization of agroindustrial solid residues and residues from biofuel production chains by thermochemical conversion: a review, citing Brazil as a case study
Besides high industrial development, Brazil is also an agribusiness country. Each year about 330 million metrics tons (Mg) of biomass residues are generated, requiring tremendous effort to develop biomass systems in which production, conversion and utilization of bio-based products are carried out efficiently and under environmentally sustainable conditions.
Braz. J. Chem. Eng.. Publicado em: 2013-06
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3. O uso da lógica fuzzy no controle das temperaturas de um conjunto gaseificador/combustor de biomassas / Using fuzzy logic to control the temperatures of a set gasifier/combustor of biomasses
This study consisted in designing and building a concurrent biomass gasifier that, when attached to a gas combustor, produced a mix of hot air and ambient air to be used for drying grains, among other things. It aimed at controlling the combustion zone gasifier temperature and exhaust hot air temperature. The theoretical mathematical framework chosen to deve
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/04/2012
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4. Avaliação do ciclo de vida de potenciais rotas de produção de hidrogênio: estudo dos sistemas de gaseificação da biomassa e de energia solar fotovoltaica / Life cycle assessment of hydrogen production routes: study of gaseification systems and photovoltaic solar power
In the present study, the energy and environmental performance of hydrogen potential routes biomass gasification systems by fixed bed and fluidized bed and the solar photovoltaic power plant were studied based on Life Cycle Assessment (LCA) methodology. After reviewing the literature and analytical procedures description, the results of life cycle assessment
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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5. Performance prediction and validation of equilibrium modeling for gasification of cashew nut shell char
Cashew nut shell, a waste product obtained during deshelling of cashew kernels, had in the past been deemed unfit as a fuel for gasification owing to its high occluded oil content. The oil, a source of natural phenol, oozes upon gasification, thereby clogging the gasifier throat, downstream equipment and associated utilities with oil, resulting in ineffectiv
Brazilian Journal of Chemical Engineering. Publicado em: 2008-09
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6. Analise termodinamica de um sistema de cogeração com gaseificação de licor negro / Termodynamic analysis of a cogeneration system with blak liquor gasification
The pulp and paper industries generate most part of energy for self consumption burning two different fuels: biomass and black liquor, which is more used than the first one. This industrial sector has been used cogeneration systems, to produce electric energy from the combustion of these fuels. In the last years an increase in the production of the industrie
Publicado em: 2007
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7. Gas turbines: gas cleaning requirements for biomass-fired systems
Increased interest in the development of renewable energy technologies has been hencouraged by the introduction of legislative measures in Europe to reduce CO2 emissions from power generation in response to the potential threat of global warming. Of these technologies, biomass-firing represents a high priority because of the modest risk involved and the avai
Materials Research. Publicado em: 2004-03
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8. Estudo experimental de uma valvula conica para controle da descarga de solidos em leito fluidizado
Feed valve are essential devices in gas-solid systems, in process as fluidized bed drying, pneumatic transport, coal combustion, biomass gasification and synthesis reactions in fluidized beds. All require a feed valve for the particulate solid to control the mass flow rate entering andlor leaving the processo. This work presents the development and the exper
Publicado em: 2001
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9. Projeto, construção e avaliação preliminar de um reator de leito fluidizado para gaseificação de bagaço de cana-de-acucar
The present interest in biomass gasification throughout the world is fundamented in two matn aspects: a) the potential for commercial development of the BIG/GT-CC (Biomass Integrated GasifierslGas Turbine-Combined Cycles) technology which allows costs of US$ 0,038/kWh against some US$ 0,08/kWh when utilizing existing the Rankine cycle conventional systems: t
Publicado em: 1996
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10. Avaliação da Cogeração de Eletricidade a partir de Bagaço de Cana em Sistemas de Gaseificador a Gás / Assessment of cogeneration of electricity from bagasse in systems of biomass gasification / gas turbine
Antes do início do Proálcool em 1975, o primeiro programa no mundo a usar em grande escala a biomassa como combustível de veículos, as indústrias já usavam o bagaço de cana - subproduto da fabricação de açúcar e álcool - para produzir energia para uso próprio. Atualmente, além da energia térmica/elétrica para auto-suficiência da usina, é ge
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/12/1992