Gas boosting refer to Coal seam gas boosting and fuel gas boosting. During the development of coal mine, there will be gas mixture include methane, also with impurities, we call it coal seam gas, it's a kind of energy. With the compressor, we can increase it’s pressure and do purification with other equipment.
In power industry, people always use natural gas as the fuel to generate electricity, but for the combustible machinery, it need a steady fuel without any pulsation, with compressor, it can decease the pulsation from the gas pipeline and increase the natural gas from pipeline until reach the required pressure for generator.