In a thermal plant, coal is burned with dry and stoichiometric air. After sulfur removal, the CO2 produced in the combustion is expected to be further used. The CO2 stream is fed to a coal bed to recover part of its synthetic potential. The aim is to achieve 99% CO2 conversion.

Determine the pressure and temperature of operation, as well as the coal consumption during this operation, not accounting for the thermal plant operation, per kmol of dry air used to burn the original coal.

The equilibrium constant for the operation of the coal bed is given by the following equation:

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log(K) 9.1106- 8841 T[=]K