Rain Carbon Inc. products

Calcined petroleum coke (CPC) is created from green petroleum coke (GPQ, a by-product of refining crude oil. While CPC can be created using a number of processes -- including rotary kiln, hearth and vertical shaft technologies - the high-temperature conversion from green coke to calcined coke alters the material in key three ways: Drying, Release of residual hydrocarbons, Densification.