Design an ECBM system with methane recovery, electricitygeneration, and carbon sequestration for a coal field with 17billion m3 methane capacity and a yield of 280 m3/tonne CO2sequestered. The methane (assume it is pure CH4 and ignoreimpurities) is delivered to an advanced technology-generating plantwhere it is mixed with a stream of pure oxygen to deliverelectricity for the grid, CO2 for sequestration, and water as aby-product. Of the energy available in the methane, 40% isdelivered to the grid in the form of electricity. The remainder isdissipated in losses in the plant and to supply energy needed forthe operation (methane, CO2 and water pumping, CO2 injection, andso on). All CO2 from the generating plant is injected into the coalfield, so that there are no emissions of CO2 to the atmosphere.Additional CO2 is transported by pipeline from other sourceslocated at a distance. The plant is planned to operate for 40 yearsat a constant output, after which all the methane will have beenwithdrawn. How much electricity does the plant produce per year?What is the net amount of CO2 sequestered, after taking intoaccount the fraction that is derived from carbon that was under theground in the first place?
