DefinePK

Abstract

The article deals with the main problems of a modern industrial technology for producing calcinated petroleum coke from green coke in a tubular rotary kiln. A high quality calcinated coke is obviously necessary both for metallurgy and chemical industry, hence its properties should meet the corresponding high requirements. Petroleum coke is a nice alternative to anthracite coke. Since the total volume of oil refining in the world is high, petcoke production has a stable raw material base, unlike anthracite, which deposits are being gradually depleted. Physical and chemical properties of petcoke and coal coke are similar in many aspects, but a proper anthracite coke sometimes demonstrates better and more stable characteristics compared to ordinary petroleum coke. Moderate or low quality of a definite batch of petroleum coke often limits its possible areas of application. The reason is usually a non-optimal calcination procedure that results in improper internal structure and compositional non-homogenity of a batch of commercial petroleum coke. Improving the situation is necessary for many reasons. Obtaining the high-quality coke for electrodes production is important for aluminium industry. Calcination is the main technological stage where composition homogeneity and structure peculiarities of a definite coke are formed. To meet the technology requirements one should determine the key parameters of calcination process and establish a proper relationship between the regulated parameters and the product quality indicators.