Fuel gas conditioning systems condition natural gas so it can be used for fuel in gas-fuel engines and turbines. They will regulate pressure, remove higher BTU components, filter impurities and dry the gas as needed per the application. Typically consisting of equipment such as a scrubber vessel or knock-out drum, filter-separator, heaters, pressure reduction, emergency/operational valves, and (flow) metering. The systems are often placed downstream of the production equipment or glycol dehydrators.