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Selection of desulfurizing agents and optimization of operational variables in hot metal desulfurization
(2013-01-01)
The growing demand for steels with tighter compositional specifications led the Companhia Siderúrgica Nacional (CSN) to develop more efficient processes. To solve this problem this paper aims to identify the operational ...
Selection of desulfurizing agents and optimization of operational variables in hot metal desulfurization
(2013-01-01)
The growing demand for steels with tighter compositional specifications led the Companhia Siderúrgica Nacional (CSN) to develop more efficient processes. To solve this problem this paper aims to identify the operational ...
Avaliação da utilização de agentes dessulfurantes a base de carbureto de cálcio contendo sodalita em substituição à fluorita em carro torpedo
(Universidade Federal de Minas GeraisUFMG, 2012-06-29)
The sulfur is considered an undesirable element in steel. Its presence can reduce the ductility, toughness, formability, weldability and cause the corrosion resistance. Its presence is beneficial only to machinability. ...
Desenvolvimento de sequestrante à base de ureia para dessulfurização de petróleoDevelopment of urea based scavenger for oil desulfurization
(Pós-Graduação em QuímicaUniversidade Federal de Sergipe, 2022)
Influence of adding iron-steel waste materials on hot metal quality
(2008-12-01)
Hazardous waste materials, notably industrial ones, are of particular concern, inasmuch as if they are not dealt with adequately, they may pose a serious threat to the environment. In this connection, those industries which ...
Avaliação do impacto do teor de enxofre de carvões metalúrgicos nos seus valores em uso
(Universidade Federal de Minas GeraisUFMG, 2015-03-06)
The origin of sulfur in steel is mainly related to the use of coke on pig iron production in blast furnaces. For some types of steel higher sulfur levels are required due to layers formation of sulfide, which increases ...
Catalytic behavior of the WOx-ZrO2 system in the clean selective oxidation of diphenyl sulfide (DPS)
(Elsevier Science, 2021-07-12)
WOx-ZrO2 (ZWx) based catalysts were prepared by equilibrium adsorption in basic condition (pH 10) with W content of 10.5, 19.7 and 27.0 wt.%, using hydrous zirconia [ZrO2(383)] as support. In order to determine the soluble ...
Avaliação da remoção de sulfeto de hidrogênio do gás natural em uma coluna de absorção
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Engenharia QuímicaPesquisa e Desenvolvimento de Tecnologias Regionais, 2009-03-05)
Natural gas, although basically composed by light hydrocarbons, also presents in its composition gaseous contaminants such as CO2 (carbon dioxide) and H2S (hydrogen sulfide). Hydrogen sulfide, which commonly occurs in oil ...