Emission control in oil refineries in India: Α case study

The emissions from oil refineries mainly comprises SOz, Nix, hydrocarbons, particulates, CO and several malodorous substances including mercaptans. These emissions may occur from a number of units located at different points in a refinery. Quantum of these emissions vary depending on quality of crude oil, regional requirement of distillates and their specifications, the process technology adopted for crude oil refining, the capacity of refinery and types of emissions control systems installed at different places. This communication presents a case study of a typical 10.35 MITPA Indian refinery which has installed typical control measures such as floating roofs for storage tanks, dust removal devices for catalytic cracking units, waste heat boilers on catalytic regenerators, etc. The emission of the typical refinery, its ambient air quality monitoring results and pollution loads of different pollutants have been calculated and characterized to show the emission controls adopted in typical Indian refinery.