Possibilities for the reduction of CO2- and CH4-emissions of natural gas

The use of fossil fuels increases the portion of greenhouse gases, especially CO2 and CH4. In this paper firstly the specific emission rates of these greenhouse gases for the various fuels are compared. Secondly possibilities for the reduction of CO2 and CH4 for natural gas which are relatively small anyhow are discussed. Thirdly the use of renewable energy within the gas industry and the ocean and into depleted reservoirs are discussed. It is shown that the efficient use of energy of the fossil fuel natural gas is most successful in all branches of gas consumption to decrease emission. Combined-cycle processes, cogeneration as well as modern domestic heating systems are described. Fuel cells and the application of hydrogen is shortly discussed. (orig.)