Co - Oxidation Catalyst / Natural Gas: A high performance oxidation catalyst system and carbon steel housing that can be designed and manufactured to fit all sizes of gas turbines. Catalytic Combustion, an Emissions Company, has a diversified base with five major divisions: Catalyst - Engine Catalyst, VOC Control/Air Correction, Exhaust, Power Generation and Contract Manufacturing. Our products use patented technology to reduce the output of volatile organic compounds (VOCs) that are harmful to the environment and its inhabitants.