Yebisu Garden Place Tower 22nd Floor
20-3, Ebisu 4-Chome, Shibuya-ku, Tokyo 150-6022, Japan
Phone: +81-3-3443-3717Fax: +81-3-3443-3263
URL: https://www.nikkiso.com

Press Information
January 23, 2024

Development of a liquid ammonia pump for thermal power generation
Market launch in 2026, Contributing to decarbonizationand the stable supply of electricity

Nikkiso has developed a pump for liquid ammonia, which is attracting attention as a carbon-free fuelbecause it does not emit carbon dioxide(CO2) during combustion.
The pump is compatible with the use of liquid ammonia for thermal power generation, which aims toboth reduce CO2 emissions and ensure a stable supply of electricity by gradually converting the fuel forcoal-fired power generation, one of the main power sources in Japan, to ammonia, and will be launchedon the market in 2026.
Nikkiso will contribute to decarbonization and the stable supply of electricity through the development ofpumps for liquid ammonia.

■Background to the development
Thermal power generation accounts for more than 70% of Japan's power generation composition(preliminary figures for FY2022, Ministry of Economy, Trade and Industry), and sustains Japanese
economy and society.On the other hand, it is known for its high CO2 emissions, andcountermeasures are required. Ammonia co-firing, in which ammonia is mixed with boilers forcoal-fired thermal power generation, can reduce CO2 emissions in accordance with the co-firing
rate, and is therefore considered one of the techniques for achieving both reduced CO2 emissions
and stable supplies of electricity.
According to the "Green Growth Strategy for 2050 Carbon Neutral" (2021), which was preparedmainly by the Ministry of Economy, Trade and Industry, the short-term target (up to 2030) is tointroduce and popularize 20% ammonia mixed firing in coal-fired power plants, and the long-termtarget (up to 2050) is to improve the mixed firing rate (50%) and to commercialize the sinteredfiring technology. Domestic demand is expected to be 3 million tons per year in 2030 and 30
million tons per year in 2050.
In response to these social demands, Nikkiso developed a pump for liquid ammonia.
■Features of the developed pump・Submerged structure, immersed in liquid up to the motor section to prevent external
leakageDue to the toxic and odorous nature of liquid ammonia, leakage to the outside must be prevented.
For this reason, all parts other than the pipework, including the motor, are immersed in the liquid.
・Canned motor pump construction with the motor built into the pump and hermeticallysealed to prevent corrosion.
To prevent the motor from deteriorating due to exposure to the corrosive liquid ammonia, acanned motor pump design has been adopted in which the motor is built into the pump and sealed
off from the liquid flow path.
Nikkiso has already delivered several thousand liquid ammonia canned motor pumps forammonia refrigeration and agricultural fertiliser production plants worldwide, and is using thisexperience.
・Cryogenic pump technology is applied to achieve high pumping capacities.
In the development of ammonia pumps for fuels requiring high pumping capacity, the technology
of cryogenic pumps, which are used in LNG terminals and other facilities, has been adopted, as
they can pump high heads and large flow volumes.Cryogenic pumps were successfully produced
domestically for the first time in 1985, and now account for approximately 50% of the global
market share.
Nikkiso's ammonia pumps take a development approach that crosses the advantages of canned
motor pumps for special liquids and cryogenic pumps, where manufacturing know-how isabundant.
■Future development
In addition to fuel co-firing applications, the pumps are also being considered for use in receiving and discharging applications at ammonia terminals, where higher heads and higher
flow rates are required than in fuel co-firing, based on the pumps' experience in LNG terminal. In addition to the sale of pumps, we will also focus on the sale of packaged produ
cts that combine pumps with the necessary equipment to suit the application.
We are looking at applications not only for thermal power generation, but also for receiving anddischarging applications at ammonia terminals, which require even higher heads and higher flow
rates than thermal power generation, by utilising our experience with pumps for LNG terminals.
This pump meets potential of the global market, and will make a significant contribution torealizing a decarbonized society.

＜About Nikkiso＞
Company Name:
Head Office:Date of Establishment:
President & CEO:Business Overview:

URL:

NIKKISO CO., LTD.
YebisuGardenPlaceTower22ndFloor,20-3,Ebisu4-Chome,Shibuya-ku,Tokyo
150-6022, Japan
December 26, 1953
Toshihiko Kai
Nikkiso provides specialized pumps and systems in the Industrial Business,
CFRP (carbon fiber reinforced plastic) aircraft parts in the Aerospace
Business and hemodialysis related products in the Medical Business.
https://www.nikkiso.com/

For inquiries, please contact:
PR and IR Section, Corporate Planning Department,
Corporate Planning Division, NIKKISO CO., LTD.
E-mail: nikkiso-pr@nikkiso.co.jp