Ebara Corporation (hereinafter "Ebara") and its group corporation, Ebara Elliott Co., Ltd., with support from the New Energy and Industrial Technology Development Organization (NEDO), have participated in the project "Commercialization Validation of Liquid Hydrogen Supply Chain (hereinafter 'This Validation Project')" led by Japan Hydrogen Energy Corporation, and won the order for liquefied hydrogen booster pumps and ultra-low temperature hydrogen return gas blowers from Kawasaki Heavy Industries, Ltd., the main contractor for the construction of Japan domestic liquefied hydrogen base (hereinafter Kawasaki LH₂ Terminal).
This order represents Ebara providing a total solution of equipment essential for operation of Kawasaki LH₂ Terminal.
1. Background and objectives
Hydrogen is considered a clean energy source that does not emit CO₂ during combustion and is essential for achieving carbon neutrality. Currently, large-scale commercialization validation to reduce hydrogen supply costs by 2030 in Japan are advancing. Serving as a key base, Kawasaki LH₂ Terminal is under construction in Kawasaki City, Kanagawa Prefecture.
Ebara utilized NEDO's grant program to advance technological development and successfully conducted the world's first actual liquid test of a large-scale centrifugal liquid hydrogen pump at the Noshiro Rocket Test Site of the Japan Aerospace Exploration Agency (JAXA) in 2022. Based on its validated high reliability and technological capabilities in the extreme environments of space development level, Ebara will contribute to the success of This Validation Project.
Moreover, the primary goal of this order is not limited to supplying individual equipment but establishing an integrated solution that provides both "Liquefied Hydrogen Boost Pumps" and "Ultra-low Temperature Hydrogen Return Gas Blowers". By providing one-stop supply of liquid and gas rotating equipment essential for base operations, it supports the maintenance of thermal balance and stable operation across the entire receiving base.
2. Product Overview
(1) Liquid hydrogen booster pump
It is a high-pressure pump with the world's highest pressure※ that pressurizes liquefied hydrogen discharged from a storage tank to a specific level and stably supplies it to downstream equipment. By limiting 4 as the number of units required to achieve pressurization and transfer, it contributes to cost reduction, maintenance workload reduction, and risk mitigation in the plant.
| Numbers of Units | In-line 4-cylinder |
| Full range of motion | Up to 3200m |
| Traffic | Maximum 54.3m³/h |
| Operating temperature | Minimum -253℃ |
| Delivery Plan | May 2029 |
| Delivery Place | Liquid Hydrogen Base “Kawasaki LH₂ Terminal”, Ogi Island, Kawasaki District, Kawasaki City, Kanagawa Prefecture |
(2) Ultra-low temperature hydrogen return gas blower
The compressor recovers and recirculates low-pressure boiling-off hydrogen gas generated within the equipment, maintaining pressure balance between gas systems of land-based vessels, including liquefied hydrogen carriers' cargo tanks. It is the world's first to practically apply centrifugal blower technology in ultra-low temperature environments, which was previously considered difficult to achieve. By efficiently returning gas within the base to the ship, it minimizes heat intrusion and reduces hydrogen loss.
| Numbers of units | 1 unit |
| Pressure | Maximum 120kPaG |
| Traffic | Maximum 13000m³/h |
| perating temperature | Minimum -240℃ |
| Delivery Plan | May 2028 |
| Delivery Place | Liquid Hydrogen Base “Kawasaki LH₂ Terminal”, Ogi Island, Kawasaki District, Kawasaki City, Kanagawa Prefecture |

Liquid Hydrogen Supply ~ Fuel Hydrogen Supply Process Flow Diagram for Power Generation Regarding Our Company's Supply Scope
3. Future development
Ebara is currently advancing the construction of the world's first full-scale commercial product testing and development center equipped with liquid hydrogen pump pilot test facilities in Futtsu City, Chiba Prefecture (scheduled for completion in summer 2026). For the products ordered this time, Ebara will conduct tests using liquefied hydrogen at this center, verifying the reproducibility of design lift and traffic characteristics, as well as stable continuous operation in ultra-low temperature environments, before delivery.
The construction of a hydrogen supply chain requires long-term reliability of equipment. The recently ordered product will play a particularly crucial role as "Hydrogen Connections" at liquefied hydrogen receiving terminals.
Ebara will drive the realization of a decarbonized society through innovation in hydrogen-related technologies.
- About Ebara Group -
Ebara Group will work to solve social issues through business activities, based on its long-term vision and medium-term management plan, striving to achieve a sustainable society and further enhance corporate value.
※ As of March 2026, according to our company's survey
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