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...
11 - Rotary Kiln Petroleum Coke Calcination Process: Some Design Considerations. Pages. 265-290. View chapter. Abstract. Petroleum coke is a by-product of the coker process in the oil industry. In its raw form, it is also called "green coke" or green petroleum coke. Calcined petroleum coke is an important industrial commodity that links the ...
A three-dimensional steady-state mathematical model of a rotary calcining kiln for the petroleum coke is presented. The model takes into account all the physical phenomena of interest, from gas flow, heat transfer, volatile matter and coke dust evolution and combustion, to the granular bed motion and the thermal effects of the refractories. …
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 ...
Common calcining methods utilize a rotary kiln, a shaft furnace, or a rotary hearth furnace. Each furnace type uses a different method for heating the coke up to the …
Calcined coke is a competitive material for making carbon anodes for smelting of alumina to aluminum. Calcining is an energy intensive industry and a significant amount of heat is exhausted in the calcining process. Efficiently managing this energy resource is tied to the profit margin and survivability of a calcining plant. To help improve …
Coke-calcining plants receive green petroleum coke from oil refineries. The green coke is blended and fed into rotary kilns operating up to 2800°F under a reducing condition. The material exits the rotary kiln as calcined coke with a correct crystalline structure and electrical conductivity properties.
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 ...
Calcination: The dried green petroleum coke is then heated to high temperatures (typically above 1300°C) in a rotary kiln or a vertical shaft kiln. This process removes volatile compounds and moisture, converting the green coke into calcined petroleum coke, which is predominantly carbon.
Petroleum coke is usually calcined in rotary kiln. It is a very prevalent problem of unstable production conditions and low recovery rates in coke calcination process. The temperature field in calcining zone is a crucial factor that affects the output and quality of calcined petroleum coke (CPC). Based on the analysis of the major factors affecting the …
Due to the limitation of time conditions, the performance of calcined petroleum coke in rotary kiln is difficult to compare with that in retort calciner. Both retort calciner and rotary kiln need to be further …
Two rotary kilns to produce calcined petroleum coke; Located adjacent to Marathon oil refinery; Chalmette, Louisiana, USA. One rotary kiln to produce calcined petroleum coke; Dedicated deep-water terminal; Waste-heat recovery power plant; Gramercy, Louisiana, USA. One rotary kiln to produce calcined petroleum coke; Dedicated deep-water …
Petroleum Coke Rotary Kiln is a high-quality and efficient carbonization technology that turns petroleum coke, a byproduct of crude oil refining, into high-quality carbon. This product is widely used in the cement, metallurgy, chemical, and other industries, as well as in power plants and waste incineration plants.
Sun Yi, Xu Haifei, Wang Yubin, Cui Yinhe and Liu Chaodong, "The Comparison Between Vertical Shaft Furnace and Rotary Kiln for Petroleum Coke Calcination," Light Metals, 2010, 917–921. ... "Coke Calcination Rotary Kiln vs Shaft Calcining," (Paper presented at 2nd International Carbon Conference, Kunming, Sept 17–19, 2006).
The paper provides a brief description of the technological process and design of the rotary kilns for petroleum coke KEP-1 and KEP-2 calcination, as well as specifies the lining requirements for some parts of such kilns. The lining bricklaying specifics and main techniques with respect to rotary kilns (including foreign designs) are …
Calcined Petroleum Coke (CPC) is a vital component in aluminium smelting with a minimum ... Keywords: Calcined petroleum coke; shaft calcining technology, rotary kiln technology. 1. General
Calcined petroleum coke is obtained by calcining petroleum coke at high temperatures under the condition of 1250 • C to 1350 • C. Because of its low cost, high carbon content, and easy ...
Based on rotary drum technology, a rotary kiln consists of a large rotating cylinder (the drum) fitted with tires resting on trunnion wheels that help to facilitate rotation via a drive assembly. The horizontal drum is positioned on a slight slope to allow gravity to assist in moving material through the unit.
Rotary Kiln The rotary kiln is a long horizontal rotating cylinder with refractory lining. Coke is introduced at one end and trans-ported through the kiln to the other end. The kiln is angled downward toward the discharge end to aid in movement of the coke. Fuel and air are injected into the kiln at various
A synergy model of material and energy flow analysis for the calcination process of green petroleum coke in rotary kiln @article{Li2021ASM, title={A synergy model of material and energy flow analysis for the calcination process of green petroleum coke in rotary kiln}, author={Peng Li and Baokuan Li and Zhongqiu Liu and Yang Yu}, journal ...
The paper provides a brief description of the technological process and design of the rotary kilns for petroleum coke KEP-1 and KEP-2 calcination, as well as …
with rotary kiln technology. Keywords: Calcined petroleum coke; shaft calcining technology, rotary kiln technology. 1. General GPC is a by-product of the oil refining process. Heavy Crude Oil (bottoms) are put into a "Delayed Coking Unit" – DCU, Coker – in order to extract further lighter fractions (jet fuel, gasoline, kerosene).
Schematic diagram of a typical petroleum coke rotary kiln. the kiln cross-section with respect to the axial (x) direction. The differential control volumes are de®ned as dVg Ag dx for the gas phase and dVs As dx for the solid phase. Ag and As correspond to the cross-sectional areas normal to the gas and solid ¯ows, respectively, and dx is the ...
Petroleum coke calcining operators prefer single-layer brick linings using rotary kiln block (RKB's). For the rotary kiln burning zone, RESCAL 70D is selected for standard service, due to its excellent durability and good thermal spalling resistance.
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 …
The proposed distribution kinetics model provides a different interpretation of the familiar Avrami equation and different mass dependences of growth and dissociation rate coefficients are proposed to investigate the fundamental features of …
Rotary kilns are still the predominant technology used to calcine coke outside China and they offer excellent economies of scale with a high level of automation. A single, modern kiln can produce up to …
A computational model is established to simulate the combustion and thermal-flow behavior inside a petcoke rotary calcining kiln. The results show that peak temperature is located at the tertiary air zone and a cold region that exists between the natural gas combustion zone and the tertiary air zone causes the coke bed to lose heat …
Petroleum coke is commonly produced from the residual material in the cracking and distillation processes in oil refineries. This residual material is further heated and devolatilized in furnaces to produce calcined coke. ... daily cleaning of the flues to remove any tar or coke buildup. The rotary kiln has an even shorter refractory life due ...
This study evaluates the effect of using two alternative biomass-type fuels, olive pomace powder and crushed almond shells, on the cement rotary kiln's combustion performance by comparing the two particles' co-combustion behavior to the case of combustion of petroleum coke alone using the Ansys Fluent Computational Fluid …
In a rotary kiln, the coke is tumbled to improve heat transfer and consistency of calcination and this reduces the average particle size. ... Petroleum coke is a by-product from crude oil ...
Keywords: Rotary Kiln, Calcining Processes, Rate-based HYSYS Simulation. Abstract: This paper presents the simulation of the green petroleum coke calcining processes using the simulation program ASPEN HYSYS. The results are validated using actual industrial data. The present study provides a detailed description of the rate-based simulation.