rotary kiln for petroleum coke calcining

Petroleum coke calcining rotary kiln uses the volatile component emitted in the roast process of the petroleum coke to calcining sufficiently. It can reach the need temperature for roasting the petroleum coke and needs little additional fuel. 2. It can realize to roast 12 tons to 15 tons petroleum coke per set, and decreases the carbon burning

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. Rotary kilns have

The invention relates to a calcining process of petroleum cokes and equipment, in particular to a calcining process of petroleum cokes by using a large rotary kiln. The process adopts the unique process of first grinding and then sieving the petroleum cokes and the technology of quantitatively feeding materials to the rotary kiln. A cooler is used for cooling the cokes calcined at high

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

Typical temperatures for a rotary coke calcining kiln are between 2200 F (1200 C) and 2400 F (1315 C). Alumina-silica refractories in the 40% to 70% Al2O3 range are appropriate for these normal operating temperatures. Petroleum coke calcining operators prefer single-layer brick linings using rotary kiln block (RKB’s)

The petroleum green coke is fed into a refractory lined rotary kiln where the volatiles are driven off during the calcining process in an oxygen deficient atmosphere. Air can be injected through the kiln shell to burn a portion of the volatile matter in the kiln providing usable heat to the kiln

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

Keywords—Calcination, green coke, petroleum coke, rotary kiln . I. INTRODUCTION RUDE oil is a complex mixture of hydrocarbons, sometimes characterized as a useless mixture of useful products. Petroleum coke is, essentially, the bottom of the crude barrel - the

In 2011, Rain Carbon started to experiment with the agglomeration of green petroleum coke (GPC) fines as a way to improve calcining economics. When a rotary kiln is used for calcining, around 10% of the finest particle size GPC becomes entrained in the counter-current flue gas stream inside the kiln

Flow diagram of a rotary kiln calcining plant. Hot combustion gases, remnant coke fines and Volatile Matter, exit the kiln from the GPC loading end and burn in the Incinerator

The typical calcining plant consists of one or more rotary kilns, a rotary cooler, settling chamber and stack. Typically, petroleum coke is fed into the backend of the rotary kiln. Rotary kilns are lined with refractory monolithics or brick. As the coke travels down the rotary kiln, it passes through numerous sections, some containing

Dec 20, 2014 The first rotary kiln for calcining GPC was used at Great Lakes Carbon in 1935,2 although rotary kilns had been used in the cement industry prior to that. Rotary kilns for CPC production are steel shells lined with high-temperature refractory brick; kilns can measure 30–85 m in length and 2.4–4.4 m in diameter

Coke Calcining Plants. 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