What are UCGs greenhouse credentials?
All fossil fuels, coal, oil and natural gas, produce CO2. The emerging ‘clean coal technologies’ do not change the amount of CO2 produced, however, these technologies; reduce the carbon emissions by increasing the efficiency of the process and reducing the cost of CO2 capture and storage. The major route to clean coal technologies currently being developed is through coal gasification, as this allows carbon dioxide in the gas stream to be captured by simple, efficient and low cost gas processing. UCG is the lowest cost coal gasification process available, and is therefore the most economic clean coal technology. UCG syngas can be used in a number of ways, with carbon dioxide removed progressively to produce lower carbon emissions. Raw UCG syngas will generate electricity with 10% less CO2 than a conventional power station and at a lower cost. If carbon capture from UCG syngas is employed before combustion, carbon dioxide emissions are less than natural gas. Even further reductions are
