Generally, coking gas, refinery waste gas or other gases discharge into the air directly resulting in air pollution. ShengLi Power Machinery gas engine run on Natural Gas or a variety of specialty waste gases, including Coal Methane, Landfill Gas, Petroleum Associated gas, Biogas, Rice husk Producer Gas, Coal gas, Syngas, Coking Gas, Blast furnace exhause gas and industrial waste gases. Shengli gas engine can widely used in oil field, coal mine, chemical plant, metallurgy, alcohol factory, ferment factory garbage fill and sewage disposal factory and so on.