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 東京ガスは2024年7月、水を電気分解して水素を取り出す水電解装置に用いる、レアメタルのイリジウム(Ir)を用いた触媒層付き電解質膜(Catalyst Coated Membrane:CCM)で、世界トップクラスの省Ir化を達成していることを明らかにした。

 東京ガスは、燃料電池の量産製造技術を持つSCREENホールディングスと共同で、プロトン交換膜(Proton Exchange Membrane:PEM)形水電解装置に使われるCCMを開発している。新聞紙を刷る輪転機に似た、ロール・ツー・ロール(R2R)式で量産することを目指している(図1)。しかも、以前からCCMの大型化と、酸素発生極(アノード)で用いるIr触媒の省Ir化を並行して進めており、大型化については現時点では寸法が25cm×50cm(電極面積1200cm2超)のCCMを開発済み。2024年度中にも、これを70cm超角(5000cm2)に拡大する計画。既に、SCREENホールディングスは、PEM形水電解セルを製造する新工場を建設中だという。

(a)電極面積が1200cm2超のCCM
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(b)ロールに巻いたCCM
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(c)酸化イリジウム(IrO2)
(d)PEM形水電解のセルスタックの試作例
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(e)セルを構成する部材
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図1 CCMの本格量産に向けCCMの大型化と省Ir化にまい進
東京ガスが2024年春に初公開した電極面積が1200cm2超のCCM(a)、SCREENホールディングスとの共同開発で、開発当初からロール・ツー・ロール式での製造を想定する(b)、アノードにおける触媒には酸化イリジウム(IrO2)を利用する(c)、開発初期に試作したセルスタック(d)、セルを構成する部材(e)(出所:日経クロステック)
 

 

Posted by Morning lark
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Game-changing electrolyser coating that could halve hydrogen stack capex cost to be tested at scale | Hydrogen Insight

 

Game-changing electrolyser coating that could halve hydrogen stack capex cost to be tested at scale | Hydrogen Insight

Game-changing electrolyser coating that could halve hydrogen stack capex cost to be tested at scale New demonstration plant will enable tests on parts big enough for commercially-sized systems Oxford NanoSystems coating demonstration plant.Photo: Oxford Na

www.hydrogeninsight.com

New demonstration plant will enable tests on parts big enough for commercially-sized systems

 

A technology company that has developed a metallic alloy coating that could double hydrogen production from alkaline electrolysers and halve the stack capex cost for H2 projects has today (Thursday) commissioned a demonstration plant to scale-up testing to commercially-sized systems.

Oxford NanoSystems’ (ONS) so-called “nanoFlux” alloy coating encourages the formation of more, smaller bubbles on the electrodes within an electrolyser, which in turn allow more electrons to move throughout the system — enabling the use of higher electrical currents and more hydrogen production in any given time period.

Posted by Morning lark
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パナソニック エレクトリックワークス社は、高純度の水素と空気中の酸素との化学反応で発電する、三相三線に対応した純水素型燃料電池「H2 KIBOU FC-H99RJR1P」を、業務用途をターゲットに12月に発売する。 新製品は、2023年6月に発売した「H2 KIBOU FC-H50MJD1P」のアップデートモデル。ユーザーからの要望に応え、最大発電出力を現行の5kWをベースに、約2倍の9.9kWまで高めたという。複数台連結することで発電出力をさらに上げることも可能。発電時に発生する熱は貯湯設備で集約することで、工場やビルなどでお湯として利用できる。 さらにアプリを使用し、発電出力を1kW刻みで調整可能になった点も特徴。複数台連結させることも可能なため、様々な需要変動が予想される工場などで柔軟な発電計画を立てられるという。 また機器構成を見直し、メンテナンス面を機器前面のみに変更することで、設置スペースを現行機と比べて53%削減。設置環境温度も下限-15℃までとなり、加えて高地(標高1,000m)、耐塩害仕様にすることで設置自由度がアップしたという。 このほかシステム全体の構成を見直したことで、イニシャルコスト(kW単価)を低減。設計寿命を9万時間から10万時間に延伸し、総点検停止までの期間を現行機の10年から15年に拡大することで、ライフサイクルコスト(kWh単価)低減にも貢献する。

 

パナソニック、出力2倍になった純水素型燃料電池(家電 Watch) - Yahoo!ニュース

 

パナソニック、出力2倍になった純水素型燃料電池(家電 Watch) - Yahoo!ニュース

パナソニック エレクトリックワークス社は、高純度の水素と空気中の酸素との化学反応で発電する、三相三線に対応した純水素型燃料電池「H2 KIBOU FC-H99RJR1P」を、業務用途をターゲットに1

news.yahoo.co.jp

 

Posted by Morning lark
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Construction of the world’s largest green hydrogen plant at Oxagon City, in Neom, Saudi Arabia, is underway and full production is due to start by the end of 2026.

The green hydrogen will be used to decarbonise industries and sectors such as transport and heavy industry that could save the planet from up to 5 million tpy of CO2.

Sarens is performing the loading, transport, and installation of 22 bullets from Neom Port to the GHE site as well as the transportation of cold boxes and ammonia converters.

This project is unique in its nature in that it is considered the heaviest and most difficult load in Neom Port’s history due to the challenges faced.

Powered solely by renewable electricity, the plant will produce up to 600 tpd of green hydrogen, which will be used to decarbonise industries and sectors such as transport and heavy industry.

Sarens, world leader in crane rental services, heavy lifting, and engineered transport, with its technical and engineering capabilities, coupled by a vast international track record, collaborated with Deugro and Air Products in transportation projects. This is thanks to its experience working with Saudi Arabia Authorities in handling projects of this magnitude around the Kingdom.

During the first stage, Sarens had to work on the route preparation, including bridge bypasses, construction, and civil work. All the handling with the authorities' requirements, along with coordination with various parties to secure the required permits, were carried out by Sarens. After that, Sarens was ready to load in, transport, and install 22 bullets from Neom Port to the site, 15 km away. Each bullet weighed in at 1000 t, with an average size of 100 m (length) by 8.5 m (diameter). Moreover, Sarens received and transported the cold boxes and the ammonia converter. During these 12 months of work, challenges included limited access to facilities, remote location in the desert with adverse weather conditions such as heavy winds, rising sand, fog, and intense heat.

Neom Green HydrogenCompany (NGHC) is a Saudi Arabian project with a global impact. Green hydrogen is produced by electrolysis of water using only renewable energy sources and is captured as green ammonia to be exported globally. The project is a key part of Saudi Arabia’s Vision 2030 and the world’s efforts to tackle climate change, transitioning to carbon-free fuel and a carbon-free future world.

Hydrogen is the lightest gas and most abundant element in the world, as it is estimated to account for 75% of the universe’s mass and 90% of all atoms. NGHC’s location at Oxagon, in NEOM, is the ideal spot for the facility thanks to the abundant natural resources and strategic location for global shipping.

Sarens’s support as a partner has allowed NGHC to start project planning at an early stage, which has been critical to the success and has enabled significant progress on the ground. Sarens benefits from proximity to the Port of Neom City, which will be an important part of the supply chain network for importing required components and transporting them during construction and maintenance.

Nour Jamal, Project Manager, commented: “This project is unique in its nature. This is considered the heaviest and most difficult load in the history of Neom Port due to the challenges faced starting from preparation and mobilisation phase, coordination with various stakeholders granting approvals on time. The situation in the Red Sea affected the mobilisation of Sarens equipment from Belgium to Saudi Arabia and we were forced to receive the equipment at Dammam port at the eastern side of KSA and mobilise via road to Neom at the far west side of Saudi Arabia. The engineering challenges of adapting the roads and navigating obstacles were met with innovative solutions and the dedication of our operation staff, resulting in the successful delivery of six hydrogen bullets, two cold boxes, and one ammonia converter. We still have 16 hydrogen bullets to deliver, and we are actively working to secure additional packages within the project.”

Posted by Morning lark
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Jolt - Activated Electrodes for Electrolysis offers high performance electrodes for AEM with several advantages:

- Large scale manufacturing from our factory in Barcelona
- Jolt can coat complex substrates such as nickel foams & felts
- Our coatings are proven at high current density
- Tests have shown low degradation even when current following
- Jolt can warranty the lifetime of our electrodes

Posted by Morning lark
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