• Current Status of Alternative Fuel Use in Lime Kilns ...

    have already been used in lime kilns, such as petroleum coke ... Current status of alternative fuel use in lime kilns ... pros and cons of burning each fuel before using it in the lime kiln.

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  • INVESTIGATION OF COMBUSTION AND THERMAL-FLOW …

    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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  • Production and Application of Calcined Coke In Rotary ...

    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 …

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  • US3823073A - Calcining coke in vertical kiln - Google Patents

    a new method of calcining coke in a vertical kiln in two zones to shorten the kiln residence time and to provide efficient heat transfer to the coke particles. green coke is dried, preheated and fed to a choking zone of a vertical klin for calcining in suspension with countercurrent flow of asceding flue gas, ten further calcined in a free all zone of the kiln by contact with ascending ...

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  • Modeling and simulation of petroleum coke calcination in ...

    Carbon electrodes used in the aluminum industry are made from green petroleum coke, which should be calcined to remove moisture and volatile matter, and to acquire an appropriate crystalline structure. This process is carried out in a calcining rotary kiln. A typical kiln for petroleum coke is about 60 m long with a diameter of 2.5 m.

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  • Simulation of Combustion and Thermal-flow Inside a ...

    Simulation of Combustion and Thermal-flow Inside a Petroleum Coke Rotary Calcining Kiln A Thesis Submitted to the Graduate Faculty of the University of New Orleans in partial fulfillment of the requirements for the degree of Master of Science in Mechanical Engineering by Zexuan Zhang B.S. University of New Orleans, 2003 May, 2007

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  • PETCOKE CO-FIRING USE OF PETROLEUM COKE AS AN …

    This is an in-depth view of the usage of ground petroleum coke as a fuel for the pulp and paper lime recovery kiln. PetCoke is an economical choice as an additional fuel capable of displacing up to 70% of Fuel Oil. PetCoke is relatively inexpensive with little or no …

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  • Preheater-kiln lime calcining systems -

    long rotary lime calcining systems, but it is the KVS preheater/rotary kiln system approach to lime calcining that is the technology of choice for the more demanding applications. The preheater-kiln system can be designed to process limestone feed as large as 75mm or as small as 6mm, with a nominal 4:1 ratio of largest to smallest.

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  • Petroleum coke - Wikipedia

    Petroleum coke, abbreviated coke or petcoke, is a final carbon-rich solid material that derives from oil refining, and is one type of the group of fuels referred to as cokes.Petcoke is the coke that, in particular, derives from a final cracking process—a thermo-based chemical engineering process that splits long chain hydrocarbons of petroleum into shorter chains—that takes place in units ...

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  • The History and Future Challenges of Calcined Petroleum ...

    The kiln is sloped and turns slowly to move the coke through the kiln with a residence time of 45–60 min. The calcined coke exits the kiln at a temperature of 1200°C to 1350°C and is typically cooled by direct quenching with water in a rotary cooler.

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