REMOVAL OF CO2 IN CO2-CONTAINING GAS

摘要

PURPOSE:To enhance energy efficiency by utilizing waste steam by flashing steam after the use as the heat source of a regeneration heater and guiding the generated low temp. steam to the. bottom part of a regeneration tower. CONSTITUTION:The steam used as the heat source of the regeneration heater of a regeneration tower 15 is guided to a flash drum 31 to be flashed and the generated low temp. steam is supplied to the bottom part of the regeneration tower 15. As mentioned above, the waste steam used in the reboiler of the regeneration tower is reutilized to remove CO2 from CO2-containing gas with high energy efficiency. By this constitution, the residual heat energy of the steam used in the heating of the regeneration heater 18 is effectively put to practical use.