Petroleum coke (petcoke), a byproduct of oil refining, is widely used in the cement industry as an alternative fuel due to its high calorific value (7,500–8,500 kcal/kg) and cost-effectiveness. It serves as a coal substitute in rotary kilns and precalciners, reducing energy costs. However, its high sulfur content requires proper emission control systems (e.g., scrubbers) to meet environmental regulations. Calcined petroleum coke, with lower sulfur and higher carbon content, is also used for better combustion efficiency. Despite challenges, petcoke remains a viable fuel option for cement production.
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