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Green coke calcination in rotary kiln

Jan 11, 2021

Figure-1. Scheme of coke calcination in a tubular rotary kiln of indirect type. At present tubular rotary kiln is the best apparatus for obtaining high-quality calcined petcoke at an industrial scale. Green coke is usually calcined in several stages under

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    Abstract. Calcined coke is the best material for making carbon anodes for smelting of alumina to aluminum. Petroleum coke is usually calcined in a gas-fired rotary kiln or rotary hearth at high temperatures, around 1200 to 1450 C, to remove moisture, drive off volatile matters, increase the density of the coke, increase physical strength, and electrical conductivity of the material

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    Calcinations of Petroleum coke

    Calcinations of coke are usually done in a rotary kiln at about 1300 C to 1500 C. During the process the coke is further decomposed, increasing in the carbon to hydrogen ratio from 20 of green coke to 1000 for calcined coke. Along with increasing in the fixed carbon of the coke to over 95%, electrical conductivity

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  • US3966560A - Method of calcining coke in a rotary
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    Calcined petroleum coke (CPC) is created from green petroleum coke (GPC), a by-product of refining crude oil. While CPC can be created using a number of processes -- including rotary kiln, hearth and vertical shaft technologies -- the high-temperature conversion from green coke to calcined coke alters the material in key three ways: Drying

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    in a full-scale rotary kiln. 5. Full Scale Rotary Kiln Trials Several 4-10 ton batches of ACP from different green cokes sized to -1.4mm were produced and calcined in a full scale rotary kiln at the Rain Carbon Lake Charles calcining plant in Louisiana. The two kilns at this facility normally operate with a feed rate of 32-35 WMT/hr (wet metric tons

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    Production and Application of Calcined Coke In Rotary. Calcined coke is produced from delayed process green coke by a process of further heating at temperatures up to 1200 o C. The product of calcining removes virtually the entire residual hydrocarbon including PAHs and the result is a dustier material. Calcined coke is characterized as either

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    A system for calcination of oil green coke has a rotating furnace and a rotating cooler, the furnace being serviced by boiler, a combustion chamber and a chimney. There is a feeding system defined by a first mat carrying the green coke into a silo and another mat transporter to feed the furnace. At the end of the silo there are two discharge breadths for the oil green

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    calcined coke is the aluminum industry, at more than 70 % of the world’s total. Calcination is an energy intensive process. During the petcoke calcination, energy input is needed to heat up the petcoke and maintain the required calcining kiln temperature to produce the desired calcined petroleum coke quality

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    The results were compared with actual industrial rotary kiln data in order to validate the simulation and there was a reasonable agreement for the two different GPCs considered. The methodology of kinetics-based simulation described in this study may be used to predict coke calcining kilns performance regardless of the green coke composition

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    While calcination cannot improve upon certain quality limits inherent in the green coke, potential quality can be lost by improper calcining. There are three main process technology used for the purpose of petroleum coke calcination – Rotary Kiln, Rotary Hearth and Shaft Calcining

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    Oct 01, 1996 The different steps for green coke calcination like: water evaporation, drying, VCM-evaporation, VCM burning, heating-up ramps, soaking period are calculated with a mathematical model. The results are compared with practical experiences for regular calcined coke production and with sampling programs during calcination process

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    Green Coke calcination company ( GCC co) was established on 2001 in Iran, in view of the growing demands of the Aluminum and steel industry, both in Iran and the Middle East. GCC co with a manufacture capacity of 240,000 MT of Calcined Petroleum Coke (CPC) is the first and only plant in Iran and the second largest in Asia, using the latest

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