A CO 2 recovering apparatus includes: a CO 2 absorber that brings flue gas containing CO 2 into contact with CO 2 absorbent to reduce the CO 2 contained in the flue gas; a regenerator that reduces CO 2 contained in rich solvent that has absorbed CO 2 in the CO 2 absorber to regenerate the rich solvent, so that the CO 2 absorbent that is lean solvent having CO 2 reduced in the regenerator is reused in the CO 2 absorber; and a controller that controls to detect the absorbent concentration in the CO 2 absorbent, to increase the volume of CO 2 absorbent to be circulated based on a decrease in the absorbent concentration, and to adjust the volume of steam to be supplied in the regenerator based on the volume of the CO 2 absorbent to be circulated.
1. A CO 2 recovering apparatus including
a CO 2 absorber that brings flue gas containing CO 2 into contact with CO 2 absorbent to reduce CO 2 contained in the flue gas, and a regenerator that reduces CO 2 contained in rich solvent having absorbed CO 2 in the CO 2 absorber to regenerate the rich solvent, so that the CO 2 absorbent that is lean solvent having CO 2 reduced in the regenerator is reused in the CO 2 absorber, the CO 2 recovering apparatus comprising:
a controller that controls to detect an absorbent concentration in the CO 2 absorbent, to increase or decrease a volume of the CO 2 absorbent to be circulated based on a decrease or an increase in the absorbent concentration, and to adjust a volume of steam to be supplied in the regenerator based on the volume of the CO 2 absorbent to be circulated,
wherein the controller controls to detect a temperature of gas guided into the CO 2 absorber, to decrease or increase a circulation rate of the CO 2 absorbent based on a change in a detected temperature; and to adjust the volume of steam to be supplied in the regenerator based on the volume of the CO 2 absorbent to be circulated.
2. A CO 2 recovering apparatus including a CO 2 absorber that brings flue gas containing CO 2 into contact with CO 2 absorbent to reduce CO 2 contained in the flue gas, and a regenerator that reduces CO 2 contained in rich solvent having absorbed CO 2 in the CO 2 absorber to regenerate the rich solvent, so that the CO 2 absorbent that is lean solvent having CO 2 reduced in the regenerator is reused in the CO 2 absorber,
the CO 2 recovering apparatus comprising:
a controller that controls to detect an absorbent concentration in the CO 2 absorbent to increase or decrease a volume of the CO 2 absorbent to be circulated based on a decrease or an increase in the absorbent concentration, and to adjust a volume of steam to be supplied in the regenerator based on the volume of the CO 2 absorbent to be circulated,
wherein the controller controls to measure a CO 2 concentration; to obtain a volume of the flue gas for achieving a target volume of CO 2 recovered based on a measured CO 2 concentration; to determine the volume of the CO 2 absorbent to be circulated based on an obtained volume of the flue gas; and to determine a volume of steam to be supplied based on an obtained volume of the CO 2 absorbent to be circulated.
3. The CO 2 recovering apparatus according to claim 1 , wherein the controller controls to measure a CO 2 concentration and a volume of the flue gas; to determine a volume of the CO 2 absorbent to be circulated for achieving a target CO 2 recovery rate based on the volume of the flue gas and the CO 2 concentration; and to determine a volume of steam based on a determined volume of the CO 2 absorbent to be circulated.
4. A CO 2 recovering method by using a CO 2 absorber that brings flue gas containing CO 2 into contact with CO 2 absorbent to reduce CO 2 contained in the flue gas, and a regenerator that reduces CO 2 contained in rich solvent having absorbed CO 2 in the CO 2 absorber to regenerate the rich solvent, so that the CO 2 absorbent that is lean solvent having CO 2 reduced in the regenerator is reused in the CO 2 absorber, A CO 2 recovering apparatus comprising:
controlling to detect an absorbent concentration in the CO 2 absorbent, to increase or decrease a volume of the CO 2 absorbent to be circulated based on a decrease or an increase in the absorbent concentration, and to adjust a volume of steam to be supplied in the regenerator based on the volume of the CO 2 absorbent to be circulated,
wherein the controlling include to detect a temperature of gas guided into the CO 2 absorber, to decrease or increase a circulation rate of the CO 2 absorbent based on a change in a detected temperature; and to adjust the volume of steam to be supplied in the regenerator based on the volume of the CO 2 absorbent to be circulated.
5. A CO 2 recovering method by using a CO 2 absorber that brings flue gas containing CO 2 into contact with CO 2 absorbent to reduce CO 2 contained in the flue gas, and a regenerator that reduces CO 2 contained in rich solvent having absorbed CO 2 in the CO 2 absorber to regenerate the rich solvent, so that the CO 2 absorbent that is lean solvent having CO 2 reduced in the regenerator is reused in the CO 2 absorber, the CO 2 recovering method comprising:
controlling to detect an absorbent concentration in the CO 2 absorbent, to increase or decrease a volume of the CO 2 absorbent to be circulated based on a decrease or an increase in the absorbent concentration, and to adjust a volume of steam to be supplied in the regenerator based on the volume of the CO 2 absorbent to be circulated,
wherein the controlling includes to measure a CO 2 concentration; to obtain a volume of the flue gas for achieving a target volume of CO 2 recovered based on a measured CO 2 concentration; to determine the volume of the CO 2 absorbent to be circulated based on an obtained volume of the flue gas; and to determine a volume of steam to be supplied based on an obtained volume of the CO 2 absorbent to be circulated.
6. The CO 2 recovering method according to claim 4 , further comprising:
measuring a CO 2 concentration and a volume of the flue gas; and
determining a volume of steam based on a determined volume of the CO 2 absorbent to be circulated for achieving a target CO 2 recovery rate based on the volume of the flue gas and the CO 2 concentration.
7. A CO 2 recovering apparatus including a CO 2 absorber that brings flue gas containing CO 2 into contact with CO 2 absorbent to reduce CO 2 contained in the flue gas, and a regenerator that reduces CO 2 contained in rich solvent having absorbed CO 2 in the CO 2 absorber to regenerate the rich solvent, so that the CO 2 absorbent that is lean solvent having CO 2 reduced in the regenerator is reused in the CO 2 absorber, the CO 2 recovering apparatus comprising:
a controller that controls to detect a temperature of gas guided into the CO 2 absorber, to decrease or increase a circulation rate of the CO 2 absorbent based on a change in a detected temperature, and to adjust a volume of steam to be supplied in the regenerator based on the volume of the CO 2 absorbent to be circulated.
8. A CO 2 recovering method by using a CO 2 absorber that brings flue gas containing CO 2 into contact with CO 2 absorbent to reduce CO 2 contained in the flue gas, and a regenerator that reduces CO 2 contained in rich solvent having absorbed CO 2 in the CO 2 absorber to regenerate the rich solvent, so that the CO 2 absorbent that is lean solvent having CO 2 reduced in the regenerator is reused in the CO 2 absorber, the CO 2 recovering method comprising:
controlling to detect a temperature of gas guided into the CO 2 absorber, to decrease or increase a circulation rate of the CO 2 absorbent based on a change in a detected temperature, and to adjust a volume of steam to be supplied in the regenerator based on the volume of the CO 2 absorbent to be circulated.
9. A CO 2 recovering apparatus including a CO 2 absorber that brings flue gas containing CO 2 into contact with CO 2 absorbent to reduce CO 2 contained in the flue gas, a regenerator that reduces CO 2 contained in rich solvent having absorbed CO 2 in the CO 2 absorber to regenerate the rich solvent, so that the CO 2 absorbent that is lean solvent having CO 2 reduced in the regenerator is reused in the CO 2 absorber, the CO 2 recovering apparatus comprising:
a controller that controls to measure a CO 2 concentration, to determine a volume of the flue gas for achieving a target volume of CO 2 recovered based on the CO 2 concentration, to determine a volume of the CO 2 absorbent to be circulated based on a determined volume of the flue gas, and to determine a volume of steam based on the volume of the CO 2 absorbent to be circulated.
10. A CO 2 recovering method by using a CO 2 absorber that brings flue gas containing CO 2 into contact with CO 2 absorbent to reduce CO 2 contained in the flue gas, a regenerator that reduces CO 2 contained in rich solvent having absorbed CO 2 in the CO 2 absorber to regenerate the rich solvent, so that the CO 2 absorbent that is lean solvent having CO 2 reduced in the regenerator is reused in the CO 2 absorber, the CO 2 recovering method comprising:
controlling to measure a CO 2 concentration, to determine a volume of the flue gas for achieving a target volume of CO 2 recovered based on the CO 2 concentration, to determine a volume of the CO 2 absorbent to be circulated based on a determined volume of the flue gas, and to determine a volume of steam based on the volume of the CO 2 absorbent to be circulated.