Improvement of measuring method for the thermal energy of carbon dioxide removal by an advanced bench scale CO_2 recovery equipment

摘要

The accuracy of measuring thermal energy of carbon dixode removal was confirmed to be improved by using an advanced bench-scale CO_2 recovery equipment (gas throughput 6 m~3/h). The energy for regeneration of spent liquor was evaluated to be 4.8 X 10~3 kJ/kgCO_2 in the case of monoethanolamine as an absorbent. This value is found to compare to that encountered in a pilot plant (gas throughput 600 m~3/h), whose value has been found to be 3.9 X 10~3 kJ/kgCO_2. Such a bench-scale test can reduce the liquid quantity to 1/50 of that used in a pilot plant.