Abstract: A method for regenerating ammonia water after capturing carbon dioxide with aqueous ammonia includes steps as follow. An ammonia water regenerating system is provided, wherein the ammonia water regenerating system includes a heat exchanger, a stripper, a second pump, a first flash drum, a first compressor, a second flash drum and a second compressor. A first flashing step is performed, wherein the rich solvent is flashed to form a first steam and a first flash liquid. A first compressing step is performed, wherein the first steam is compressed. A stripping step is performed, wherein the first flash liquid is stripped. A second flashing step is performed, wherein the lean solvent is flashed to form a second steam and a second flash liquid. A second compressing step is performed, wherein the second steam is compressed.

Abstract: A method for regenerating ammonia water after capturing carbon dioxide with aqueous ammonia includes steps as follow. An ammonia water regenerating system is provided, wherein the ammonia water regenerating system includes a heat exchanger, a stripper, a second pump, a first flash drum, a first compressor, a second flash drum and a second compressor. A first flashing step is performed, wherein the rich solvent is flashed to form a first steam and a first flash liquid. A first compressing step is performed, wherein the first steam is compressed. A stripping step is performed, wherein the first flash liquid is stripped. A second flashing step is performed, wherein the lean solvent is flashed to form a second steam and a second flash liquid. A second compressing step is performed, wherein the second steam is compressed.

Abstract: A carbon dioxide capture system comprises a carbon dioxide absorption unit, an ammonia absorption unit, a carbon dioxide stripper unit, an ammonia stripper unit, a heating unit, and a condensing unit. The carbon dioxide absorption unit interconnects with the ammonia absorption unit; the carbon dioxide stripper unit interconnects with the ammonia stripper unit, whereby a first regeneration agent of the carbon dioxide stripper unit and a recirculated ammonia-rich liquid of the ammonia absorption unit directly flow into the carbon dioxide absorption unit to assist a first absorbent to absorb carbon dioxide, and whereby the heat energy generated by the heating unit is more efficiently used by the carbon dioxide absorption unit, the ammonia absorption unit, the carbon dioxide stripper unit, and the ammonia stripper unit. Compared with the conventional carbon dioxide capture system, the present invention has advantages of low power consumption and low equipment cost.

Abstract: A multilayer-structured exhaust gas decontamination reactor comprises a frame body, a front filter board, a rear filter board, and electrochemical-catalytic conversion units. The front and rear filter boards are respectively installed at an input end and an output end of the frame body and respectively include a plurality of electrochemical-catalytic conversion units that are arranged alternatively. The input end, the interconnection regions of the front and rear filter boards, and the output end jointly form a channel allowing the exhaust gas to flow. The electrochemical-catalytic conversion units of the invention are exposed to the channel to function as the reaction sides for decontaminating the exhaust gas. Thus, the invention does not need to use an additional reducing gas system, thereby can reduce the volume and lower production cost of the exhaust gas decontamination reactor.

Abstract: A method for fabricating an exhaust gas decontamination reactor, which is an exhaust gas decontamination pipe or a exhaust gas decontamination honeycombed structure, comprises steps: respectively coating a cathode layer and an anode layer on an outer wall surface and an inner wall surface of a pipe; and forming an enclosed reducing environment inside an internal channel of the pipe. The method for fabricating an exhaust gas decontamination honeycombed structure comprises steps: respectively coating cathode layers and anode layers on first inner wall surfaces of first passages and second inner wall surfaces of second passages; and forming enclosed reducing environments inside the second passages. Then, the cathode layers function as reaction sites to decontaminate exhaust gas. The present invention needn't arrange a reducing-gas system in the reactor and thus can decrease the volume and fabrication cost thereof.