Coking Process
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. PREPARATION AND SIMULATION OF THE ON-LINE SiO2/S COATING FOR COKING INHIBITION IN THE INDUSTRIAL CRACKING FURNACE
Abstract Coke formation inside radiant coils is one of the main problems during thermal cracking of hydrocarbons. The on-line preparation of the coating for coking inhibition is a promising technology because it provides more flexibility to the operators on site. The SiO2/S coating was prepared on the inner surface of coils in an 8-year-served GK-VI industri
Braz. J. Chem. Eng.. Publicado em: 13/01/2020
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2. Influence of moisture and particle size on coal blend bulk density
Abstract Coal blend bulk density is an important property in the coking process. Some variables, such as moisture and particle size, which are controlled or measured in the coal beneficiation process in steel mills, exert a strong influence on this feature. This study aims to understand the density variation of coal blends by the influence of moisture and pa
REM, Int. Eng. J.. Publicado em: 2019-06
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3. Characterization of coal briquettes using tar as a binding material for use in a coke oven
Abstract In order to increase competitiveness in the steel industry through reduction of the cost of coal mixtures and increase in the quality productivity of coke in the oven, this research was developed with the aim of increasing the bulk density through briquetting of low power coking coal using tar as a binding material. Initially an industrial scale dou
REM, Int. Eng. J.. Publicado em: 2019-03
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4. Cocking process control parameters of the COSIPAs coke plant. / Parâmetros de controle do processo de coqueificação das baterias de fornos de coque da COSIPA.
O controle de processo de uma planta de fabricação de coque depende de muitas variáveis particulares de cada planta. A busca de modelos de controle próprios torna-se necessário. O presente trabalho apresenta um projeto de experimentos, em forno piloto, para investigar a influência dos principais parâmetros de controle de fabricação do coque quanto �
Publicado em: 2008
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5. Desenvolvimento de metodologia da avaliação da resistência ao coqueamento em catalisadores de reforma a vapor por análise térmica / Development of avaliation methodology of catalyst coke resistent to steam reforming process
Este trabalho consiste no desenvolvimento de metodologia para a seleção de catalisadores de maior resistência ao coqueamento para serem aplicados à Tecnologia de Refino e de Petroquímica. Essa metodologia associada a outras determinações ajudará na seleção de catalisadores para as unidades de reforma a vapor e possibilitará maior atividade, estabi
Publicado em: 2008
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6. Development of a computaciona model for thermal cracking processes / Desenvolvimento de modelo computacional para craqueamento termico
The mathematical modeling and the computational simulation of a process furnace for thermal conversion of heavy oil fractions is developed in this work. Kinetics of conversion reactions is from Sugaya (1993). It is based in a first order irreversible reaction with 9 lumps and 24 pseudocomponents. The 24 pseudocomponents are characterized and their properties
Publicado em: 2008
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7. Reologia de Biodiesel de origens diversas e das misturas Diesel/Biodiesel
Cost and depletion of petroleum derived fuels are increasing, thus alternative fuels are quite required. Biodiesel (B100), which is comprised of fatty acid methyl (or ethyl) esters (FAMEs/FAEEs) derived from vegetable oils, animal fats or waste oils mainly through transesterification, is an alternative source of energy. It is renewable, available locally, bi
Publicado em: 2008
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8. Effects of operating conditions on compositional characteristics and reaction kinetics of liquid derived by delayed coking of nigerian petroleum residue
The thermal upgrading of Nigerian petroleum residue was studied at relatively low pressure in a delayed coking reactor system. In this work, the intent was to investigate the effects of process variables such as reaction temperature (200(0)C to 600(0)C), reaction time (0 to 120min), additive concentration loading and additive-to-residue ratio on the amounts
Brazilian Journal of Chemical Engineering. Publicado em: 2006-09
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9. Synthesis of activaded carbon materials from petroleum coke / Sintese de materiais carbonosos ativados a partir de coque de petroleo
Activated Carbon MateriaIs (ACM), such as Activated Carbons (AC) and Carbon Molecular Sieves (CMS), are characterized by a high specific surface area em high pore volume in their carbon matrix, being their principal property to adsorb molecules in liquid and gas phase. Brazil imports all its molecular sieves, using them in several areas of science and techno
Publicado em: 2005
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10. Hidropirolise rapida (HPR) do carvão mineral de candiota
Coal in Brazil is an abundant natural resource, but marginally developed. Main uses are: burning for thermoelectricity or industrial heat, and reducing agent in the steel industry. Samples from Candiota, a high ash non-coking coal from Rio Grande do Sul, were pyrolised in H2 atmosphere at a bench unit specially developed, composed by an entrained bed down fl
Publicado em: 1989
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11. Mortality due to respiratory cancers in the coke oven plants of the Lorraine coalmining industry (Houillères du Bassin de Lorraine).
The main activity of the Houillères du Bassin de Lorraine (Lorraine Collieries), employing 23,000 operatives and executives, is coalmining. The coke production is carried out by two coke oven plants with a workforce of respectively 747 and 552 workers. The coal coking process entails the emission of noxious products such as polycyclic aromatic hydrocarbons