DEVICES, SYSTEMS, FACILITIES AND PROCESSES FOR CARBON CAPTURE OPTIMIZATION IN INDUSTRIAL FACILITIES
Devices, systems, and methods for carbon capture optimization in industrial facilities are disclosed herein. An example carbon capture process involves cooling a flue gas stream using at least one gas-to-air heat exchanger disposed upstream of a carbon dioxide (CO2) absorber. Another example carbon capture process involves heating a heat medium for solvent regeneration and CO2 stripping using a fired heater and/or using at least one waste heat recovery unit.
1 . A system for processing a flue gas stream, the system comprising:
a gas-to-air heat exchanger disposed upstream of and in fluid communication with a carbon dioxide (CO2) absorber, the gas-to-air heat exchanger configured to receive and cool the flue gas stream, and the gas-to-air heat exchanger configured to transport the cooled flue gas stream through and out of the gas-to-air heat exchanger toward the CO2 absorber;
a flue gas blower configured to move the flue gas stream through the gas-to-air heat exchanger and the CO2 absorber; and
a cooling air blower configured to move air through the gas-to-air heat exchanger to cool the flue gas stream.
2 . The system of claim 1 , wherein at least a portion of the flue gas stream flows out of the CO2 absorber as a waste gas stream, the flue gas blower is disposed downstream of the CO2 absorber and configured to blow the waste gas stream away from the CO2 absorber, and the waste gas stream flowing out of the CO2 absorber has a lower concentration of CO2 than the flue gas stream flowing into the CO2 absorber.
3 . The system of claim 1 , further comprising a closed loop water filtration system configured to remove contaminants from the flue gas stream.
4 . The system of claim 1 , further comprising:
at least one additional gas-to-air heat exchanger disposed downstream of the gas-to-air heat exchanger and upstream of the CO2 absorber, the at least one additional gas-to-air heat exchanger configured to further cool the flue gas stream flowing through the at least one additional gas-to-air heat exchanger toward the CO2 absorber.
5 . The system of claim 1 , further comprising the CO2 absorber.