Petroleum Coke

Petroleum coke (Petcoke) is a carbonaceous solid by-product from oil refinery coker units or other cracking processes. Petcoke is used as a fuel and as a source of carbon for industrial processes.

Petcoke is produced after crude oil undergoes two processes. First, the oil is distilled into various products, separating out the light parts of the oil — the gasoline vapours, liquid petroleum gas (LPG), naphtha, and kerosene from the heavier parts of the oil. The heavier portion of the oil, Vacuum Residue (VR), in then processed through a “coker” which subjects the remaining VR to high heat and pressure to extract as much of the lighter gasoline - like parts of the oil as possible. What remains after the coker after the high heat and pressure is a substance called petroleum coke.

Petroleum coke is high in carbon — this makes it chemically similar to coal and both energy dense and useful for many industrial processes that require carbon.

Fuel Grade Petcoke: About 70-80% Petcoke is usually used as a fuel to make cement, lime, brick, glass, steel, and fertilizer as well as many other industrial applications.

Calcined Grade Petcoke: Calcined Petcoke is Petcoke that is again heated to remove moisture, volatile matter, and impurities and to increase the electrical conductivity. Calcinced Petcoke is used to make steel, graphite and titanium.

Calcined Petcoke is essential to the manufacturing of aluminum. Because of its high carbon purity and a lack of contaminants, calcined Petcoke provides the only economically viable method to produce primary aluminum. Calcined Petcoke also produces titanium dioxide, a safer alternative to the lead used in paint.

Exotron Thermal is experienced in fuel grade & Calcined Grade Petcoke sourcing and sales, handling, developing applications for Petcoke use, Technology development for Petcoke firing for various applications, SOx capture mechanism for Petcoke based boilers, glass and other applications. We conduct feasibility and techno-economic study for Petcoke conversions from coal, oil & gas firing to Petcoke firing and Sulphur Capture methods.
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