Abstract
The invention provides a capture device and a capture method for a target component in gas. The capture device includes a rotary packed bed and a fixed bed. The rotary packed bed is provided with a first absorbent inlet, a first absorbent outlet, a first gas inlet and a first gas outlet. The fixed bed is provided with a second absorbent inlet, a second absorbent outlet, a second gas inlet and a second gas outlet. The first absorbent outlet is communicated with the second absorbent inlet to form an absorbent passage successively from the rotary packed bed to the fixed bed. The second gas outlet is communicated with the first gas inlet to form a gas passage successively from the fixed bed to the rotary packed bed. The capture device is effectively reduced in size and energy consumption during capturing the target component.