Incrustations
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Desenvolvimento do cristal semicondutor de iodeto de mercúrio para aplicação como detector de radiação / Development of the mercury iodide semiconductor crystal for application as a radiation detector
In this work, the establishment of a technique for HgI growth and preparation of crystals, for use as room temperature radiation semiconductor detectors is described. Three methods of crystal growth were studied while developing this work: (1) Physical Vapor Transport (PVT); (2) Saturated Solution of HgI2, using two different solvents; (a) dimethyl sulfoxide
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/07/2011
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2. Salinidade em petróleo bruto: otimização de metodologia e proposta de um novo método para extração de sais em petróleo
The quantity of salts in the crude oils depends on the origin and of the wells production and these salts cause several problems during the transport and the process of refine as corrosions, incrustations and deactivation of the employed catalysts in the refineries. In this study were implemented changes for improvements in the execution of ASTM D 6470 metho
Química Nova. Publicado em: 2010
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3. MonitoraÃÃo eletrÃnica da incrustaÃÃo de coque no processamento do petrÃleo / Electronic monitoring of coke fouling in oil processing
A incrustaÃÃo causada pelo coque à um sÃrio problema na indÃstria do petrÃleo, principalmente, nos equipamentos que operam em altas temperaturas. Neste trabalho apresenta-se um estudo para demonstrar a possibilidade do emprego da incrustaÃÃo do coque como um elemento transdutor para compor um sensor tipo resistivo, para fornecer um sinal elÃtrico re
Publicado em: 2009
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4. Elimination of Lubricants from Aluminum Cold Rolled Products Using Short Laser Pulses
This work presents a new technique to remove the surface impurities from the aluminum cold-worked sheets. The method consists to concentrate a short-time high-power pulsed laser on the materials surface and scan it in order to cover a desired area. Incrustations ablation is obtained as long as the fluency and the peak power are high enough to produce vaporiz
Materials Research. Publicado em: 2002-06
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5. Remoção de ferro e manganes em aguas de abastecimento, atraves de reatores granulares de fluxo ascendente : aplicação em poços profundos
Many Brazilian regions present qualitative problems in their groundwaters, used for public supply, due to the presence of iron and manganese, that come from the dissolution of rocks and mineraIs. They can bring inconveniences as the formation of precipitated material, presence of spots in toilets, clothes and domestic utensils, problems of fiavor and smell,
Publicado em: 1999