US 12,409,411 B2
Exhaust gas processing equipment and gas turbine plant
Takashi Kamijo, Yokohama (JP); Atsushi Tsutsumi, Yokohama (JP); Hiromi Ishii, Yokohama (JP); Takahiro Araya, Yokohama (JP); Tetsuya Tanaka, Yokohama (JP); Kazunori Tsujii, Yokohama (JP); and Naoyuki Nagafuchi, Yokohama (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 17/786,084
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP); and Mitsubishi Heavy Industries Engineering, Ltd., Kanagawa (JP)
PCT Filed Nov. 24, 2020, PCT No. PCT/JP2020/043630
§ 371(c)(1), (2) Date Jun. 16, 2022,
PCT Pub. No. WO2021/131459, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 2019-239000 (JP), filed on Dec. 27, 2019.
Prior Publication US 2023/0021855 A1, Jan. 26, 2023
Int. Cl. F02C 6/18 (2006.01); B01D 53/18 (2006.01); B01D 53/34 (2006.01); B01D 53/62 (2006.01); B01D 53/78 (2006.01); F02C 3/34 (2006.01)
CPC B01D 53/343 (2013.01) [B01D 53/18 (2013.01); B01D 53/62 (2013.01); B01D 53/78 (2013.01); F02C 3/34 (2013.01); F02C 6/18 (2013.01); B01D 2258/0283 (2013.01)] 8 Claims
OG exemplary drawing
 
1. Exhaust gas processing equipment comprising:
an exhaust line through which an exhaust gas discharged from a boiler circulates;
a carbon dioxide recovery device that is provided on the exhaust line, and that recovers carbon dioxide contained in the exhaust gas; and
an exhaust gas heating device that is provided on a downstream side of the carbon dioxide recovery device in the exhaust line, and that heats the exhaust gas,
wherein the carbon dioxide recovery device includes
a first medium line through which a first medium circulates,
a second medium line through which a second medium having a temperature higher than that of the first medium circulates,
an absorber through which an absorption liquid chemically absorbing the carbon dioxide in the exhaust gas by coming into contact with the exhaust gas circulates, and
an absorber cooling line provided in the absorber, and serving as the first medium line through which a heat medium as the first medium cooling the exhaust gas by exchanging heat with the exhaust gas in the absorber circulates, and
the exhaust gas heating device includes
a heat exchanger provided on the absorber cooling line, and serving as a first heating section exchanging heat between the first medium and the exhaust gas, and
a second heating section that further heats the exhaust gas passing through the first heating section by heat exchange with the second medium.