Green Power International [P] Ltd. Offers Power Generation on Coke Oven Gas Genset. Green Power International [P] Ltd. Manufactures Natural Gas Gensets or Gas Generators. The Power Generation on Coke Oven Gas Genset is used in the process of converting coal into coke using the by-product coke oven; the volatile matter in the coal is vaporized and driven off. This volatile matter leaves the coke oven chambers as hot, raw coke oven gas. The Coke Oven Gas leaves the coke oven chambers at high temperatures approaching 2000 deg F. This hot gas is immediately quenched by direct contact with a spray of aqueous liquor [flushing liquor].