Bulldozer Pushing Petroleum Coke, Waste From Oil Refining

Texas City, Texas, USA

A bulldozer grades a stockpile of petroleum coke, or “petcoke,” a solid, more than ninety-percent carbon byproduct of the oil refining process that is used as a source of energy and high-grade industrial carbon. Fuel-grade petroleum coke, which is high in carbon dioxide and sulfur, is burned to produce energy used in making cement, lime and other industrial applications, as well as in cogeneration energy plants.