Abstract
The removal of carbon dioxide from flue gas is one of the most important issues for preventing the green-house effect. An alkanolamine in aqueous solution absorbs (CO)_2 and is regenerated by (CO)_2 recovery in the temperature range from 100 to 120℃. In order to obtain the energy for (CO)_2 recovery, we are studying for solar energy utilization as a heat source for (CO)_2 recovery process. This temperature range can be obtained using a stationary trough-type concentrator. We designed and fabricated Solar-heater hybrid-type (CO)_2 recovery system which consists of an integrated stationary evacuated concentrator and an amine regenerator. (CO)_2 was successfully recovered under cloudy days as well as cloudless sky using this system.
