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Successful operation of liquid ammonia canned motor pump using actual liquid


During the test During the test

EBARA CORPORATION (hereinafter referred to as "EBARA") is pleased to announce that it has succeeded in operating an new leak-free canned motor pump for liquid ammonia (hereinafter referred to as "this product")*1 at JERA Hekinan Thermal Power Station, Ltd. by delivering it to for the fuel ammonia conversion demonstration of JERA Hekinan Thermal Power Station, which adopted a new structure developed in September 2023.

1. Background

Among the global decarbonization trend, ammonia is expected to be effective in reducing greenhouse gases as an energy carrier that can carry hydrogen at low cost and efficiently, and fuels that utilize the characteristics that do not emit CO2 during combustion. On the other hand, ammonia is toxic and has an odor, so it must be handled safely. EBARA developed this product in 2023 as a leak-free pump with a new structure in order to contribute to the realization of the transfer of actual ammonia solution safer than conventional products. *2

2. Overview

This product, which was delivered this time, features a structure in which liquid ammonia is immersed in the motor, so that it can be operated without leaking liquid ammonia to the outside. In this demonstration test, the product was installed in an outdoor environment within the power plant and operated under various patterns and loads using actual ammonia liquid, with favorable results being obtained in terms of performance and functionality in all cases. During operation, the product was quieter than the conventional product, and no leakage of liquid ammonia was observed. We were able to simultaneously confirm not only the reliability of the design structure but also the safety and environmental impact reduction.

3. Future Plan

The utilization of ammonia to reduce greenhouse gases (CO2) is planned in many ways worldwide, and we believe that demand for leak-free pumps will grow throughout the entire supply chain, including thermal power plants. EBARA is one of the world's leading pump manufacturers with extensive experience in handling cryogenic and cryogenic liquids, and will continue to contribute to the spread of fuel ammonia and other supply chains.


The EBARA Group aims to achieve the Sustainable Development Goals (SDGs) by addressing material ESG issues based on its long-term vision and medium-term management plan, and will further enhance its corporate value.


※1: Conducted by JERA Co., Inc. and IHI Corporation as part of a subsidy project by NEDO (New Energy and Industrial Technology Development Organization).

*2: Development of canned motor pump for liquid ammonia published on our website on November 20, 2023