Waste As Fuel
Mostrando 25-36 de 54 artigos, teses e dissertações.
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25. 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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26. Metais pesados e micronutrientes no solo e em folhas de Brachiaria decumbens às margens de rodovias / Heavy metals and micronutrients in soil and in leaves of Brachiaria decumbens on the margins of highways
The generation of various wastes, has become alarming in light of their growing volume and their disposal to form inappropriate, especially in soil. One of the characteristics of such waste is the possibility of being contaminated by heavy metals. The Fuel obtained the refining of oil, widely used in automobiles, are usually enriched with toxic elements. The
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2009
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27. Estudo do processamento do combustível UO2-7%Gd2O3 via mistura mecânica com reutilização de rejeitos do processo de fabricação e aditivo de densificação / UO 2 -7%Gd 2 O 3 FUEL PROCESS DEVELOPMENT BY MECHANICAL BLENDING WITH REPROCESSING OF WASTE PRODUCTS AND USAGE OF DENSIFICATION ADDITIVE
In the nuclear fuel cycle, reprocessing and storage of "burned" fuels, either temporary or permanent, demand high investments and, in addition, can potentially generate environmental problems. A strategy to decrease these problems is to adopt measures to reduce the amount of waste generated. The usage of integrated burnable poison based on gadolinium is a me
Publicado em: 2009
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28. Scrap tire ashes in portland cement production
Scrap tires are not considered harmful waste, but their stocking and disposal are a potential health and environmental risk. Properly controlled calcinations at high temperatures make tire combustion an interesting alternative due to its high calorific power, comparable to that of fuel-oil. Consequently, using them as an alternative combustible material in c
Materials Research. Publicado em: 2009
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29. Drying coffee spent ground in Cyclonic Dryer / Secagem da borra de cafà em secador ciclÃnico
Due to trade liberalization, competitive scenery was created in relation to the exigencies with the environment preservation. Industries began to worry about the waste treatment and by-products generated by the in activity. The coffee spent ground, by-product of the coffee industry, previously discarded without commercial value, is now seen as solid fuel, a
Publicado em: 2009
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30. Avaliação do potencial de produção e exportação de pellets combustivelno polo florestal da região Sul do Brasil / Assessment of the potential of woodpellets production and export in the forestry pole of Brazilian southern region
Pellets is a solid biofuel that has been fairly used in developed countries of temperate climate. In recent years its consumption has increased for residential heating and electricity and thermal generation in co-firing plants, particularly in Europe, that is worldwide the largest pellets market. Brazil has good potential to be a supplier in the emerging pel
Publicado em: 2009
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31. Influence of vinasse application in saturated hydraulic conductivity and runoff / Influência da aplicação de vinhaça na condutividade hidráulica do solo saturado e no escoamento superficial
The production of alcohol used as fuel is increasing every year due to the need to replace the sources of fossil fuels, which is finite, and on the other hand alcohol is a renewable energy source. But the production of this fuel generates large quantities of waste and the vinasse draws most attention by its high value as fertilizer, primarily by the amount o
Publicado em: 2009
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32. Degradação catalítica de polietileno de alta densidade sobre a zeólita HZSM
In last years it has talked a lot about the environment and the plastic waste produced and discarded. In last decades, the increasing development of research to obtain fuel from plastic material, by catalytic degradation, it has become a very attractive looking, as these tailings are discarded to millions worldwide. These materials take a long time to degrad
Publicado em: 2009
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33. Biodegradação de rejeitos radioativos líquidos orgânicos provenientes do reprocessamento do combustível nuclear / Biodegradation of radioactive organic liquid waste from spent fuel reprocessing
O reprocessamento do elemento combustível constitui uma das etapas do ciclo do combustível e tem por objetivo separar U 235, U238 e Pu239 dos produtos de fissão contidos no elemento combustível queimado para reutilizá -los na fabricação de novos elementos combustíveis. No Brasil, o desenvolvimento do reprocessamento teve início nos anos 70 com a imp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/11/2008
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34. 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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35. Productions of ethyl esters (biodesel) from the transesterification core residual oil / Produção de esteres etilicos (biodiesel) a partir da transesterização basica de oleo residual
Biodiesel (alkyl esters) is a clean burning fuel derived from a renewable lipid feedstock such as vegetable oil or animal fat. It is biodegradable, non-inflammable, nontoxic and produce much lesser COx, sulfur dioxide and unburned hydrocarbons than petroleum-based diesel. Nowadays, due to the price of virgin oil such as soybean and canola oils, the use of lo
Publicado em: 2008
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36. Extração do óleo e caracterização dos resíduos da borra de petróleo para fins de reuso
The petroleum industry, in consequence of an intense activity of exploration and production, is responsible by great part of the generation of residues, which are considered toxic and pollutants to the environment. Among these, the oil sludge is found produced during the production, transportation and refine phases. This work had the purpose to develop a pro
Publicado em: 2008