US 11,702,988 B2
Ammonia decomposition facility, gas turbine plant equipped with same, and ammonia decomposition method
Hidefumi Araki, Yokohama (JP); Satoshi Tanimura, Yokohama (JP); Masakazu Nose, Yokohama (JP); Jun Sasahara, Yokohama (JP); Hideyuki Uechi, Tokyo (JP); Yukio Tanaka, Tokyo (JP); and Atsushi Yuasa, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 17/437,708
Filed by Mitsubishi Power, Ltd., Yokohama (JP)
PCT Filed Mar. 13, 2020, PCT No. PCT/JP2020/011164
§ 371(c)(1), (2) Date Sep. 9, 2021,
PCT Pub. No. WO2020/189566, PCT Pub. Date Sep. 24, 2020.
Claims priority of application No. 2019-049013 (JP), filed on Mar. 15, 2019.
Prior Publication US 2022/0154646 A1, May 19, 2022
Int. Cl. F02C 7/22 (2006.01); F02C 3/22 (2006.01); F02C 6/18 (2006.01)
CPC F02C 7/22 (2013.01) [F02C 3/22 (2013.01); F02C 6/18 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An ammonia decomposition facility, comprising:
a first heating medium line configured to flow a heating medium heated by heat generated by a gas turbine;
a second heating medium line configured to flow a heating medium heated by heat generated by the gas turbine;
an ammonia supply line configured to flow ammonia;
an ammonia decomposition device that is connected to the first heating medium line and the ammonia supply line, and is configured to use heat of the heating medium from the first heating medium line, thermally decompose the ammonia from the ammonia supply line, and generate a decomposition gas containing hydrogen, nitrogen, and residual ammonia;
an ammonia removal device configured to remove the residual ammonia contained in the decomposition gas from the ammonia decomposition device; and
a processed gas supply line configured to guide a processed gas, which is a decomposition gas from which the residual ammonia has been removed by the ammonia removal device, to a gas utilization target,
wherein the ammonia removal device includes an ammonia absorber and an ammonia separator,
wherein the ammonia absorber is configured to bring the decomposition gas from the ammonia decomposition device into contact with water, dissolve the residual ammonia in the decomposition gas in the water and exhaust the processed gas,
wherein the ammonia separator includes a separation tower and a water heater,
wherein, in the separation tower, ammonia water, which is the water in which the residual ammonia dissolves, is configured to be brought into contact with water vapor, heat the ammonia water, and separate ammonia from the ammonia water,
wherein the water heater is configured to heat water in which ammonia has been separated from the ammonia water to form water vapor, and then return the water vapor to the separation tower, and
wherein the water heater is a heat exchanger that is configured to exchange heat between water in which ammonia has been separated from the ammonia water and the heating medium from the second heating medium line and form the water into water vapor.