Underground Coal Gasification: With CHP

nNot the most obvious way of getting coal ‘energy’ out of the ground but it has to be one of the most practical. It’s also a good solution with depleted mine-working which will be venting methane to the atmosphere.
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nWater/Air mix is injected into difficult coal seams and the reaction produces a synthetic gas rich in methane, and also CO2 and other gases. This ‘gas’ is then brought to the surface for production processes.
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nWhilst this process will produce a gas suitable for Combined Heat and Power Systems [Electricity Heat and Cooling Waters], it can also be the base for bio-diesel production as well.
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nLike all coal mining operations we have to wary of the risks; such as settlement issues at the surface, venting along unforeseen seams to the surface and the need to clean the synthetic gas of other contaminants.
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nHowever it is an energy rich process and can provide