Spent catalyst disposal services. Available as hazardous & non-hazardous waste disposal services. Solid catalytic materials play major role in oil refining industry. There are various types of catalysts which are in use but the major ones are mainly hydro processing catalysts, Fluid catalytic cracking catalysts and reforming catalysts. During processing, catalysts gets contaminated with impurities viz coke, sulfur, vanadium and nickel in the crude oil feed and becomes deactivated over a period of time.