Hydrogen production/energy carriers/CCU

[2C16-19] Hydrogen production/energy carriers/CCU(7)

Fri. Nov 12, 2021 2:15 PM - 3:15 PM Room-C (Dojo-A/Hakodate Areana)

Chair:Hideshi Iki(ENEOS Corp.)

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2:15 PM - 2:30 PM

[2C16] Development of H2 energy storage and transportation system using Organic Chemical Hydride

○Kenichi Imagawa¹, Hironori Kawai¹, Masataka Okada¹, Yusuke Nakajima¹, Yoshimi Okada¹ (1. Chiyoda Corporation)

水素の大量貯蔵・長距離輸送技術の一つとして、水素を常温常圧の液体状態での輸送を可能とする有機ケミカルハイドライド法が注目されている。千代田化工では、本法を用いたSPERA水素®を開発しており、本年初頭に世界初の国際間水素サプライチェーン実証を完了している。本発表では、その技術概要を紹介するとともに、将来の低コスト化を実現すべくENEOSとの共同で実施したメチルシクロヘキサンの直接電解合成法の技術検証について紹介する。

2:30 PM - 2:45 PM

[2C17] Development of technology for hydrogen storage and transportation at large scale by organic chemical hydride system - Development of modified catalyst for methylcyclohexane dehydrogenation -

○Shinya Hodoshima¹, Kenichi Imagawa¹, Masashi Saito¹, Kanechika Matsui², Hironori Kawai² (1. Chiyoda Corporation, Research & Development Center, 2. Chiyoda Corporation, Process Development Section)

In the transportation and storage system of hydrogen, being proprietary technology, by using methylcyclohexane/toluene carrier, development of dehydrogenation catalysts with high activity and stability are significant key technologies. In order to further improve resistance to coke formation, modified dehydrogenation catalyst, consisting of platinum supported on aluminum oxide, was newly developed by Chiyoda Corporation. It was demonstrated that this proprietary catalyst gave excellent performance in small reactor at commercial scale. In this presentation, excellent performance of the present modified catalyst will be presented.

2:45 PM - 3:00 PM

[2C18] Hydrogen production from surface-type methane hydrate collected off Tokachi

○Hirotoshi Sakagami¹, Noriyasu Okazaki¹, Satoshi Yamashita¹, Akihiro Hachikubo¹, Masaaki Konishi¹, Kazutaka Tateyama¹, Masato Kita¹, Hirotsugu Minami¹ (1. Kitami Institute of Technology)

In the sea area around Hokkaido, the existence of bottom simulating reflectors (BSR) has been confirmed off Abashiri, Okushiri Island, Hidaka, and Tokachi. In November 2020, we succeeded in collecting methane hydrate present in the surface layer of the seafloor in the Pacific Ocean off Tokachi. Attempts a direct reforming methane dissociated from the methane hydrate, was successfully hydrogen generation by a chemical reaction that does not generate carbon dioxide. In addition, carbon could be recovered as carbon nanotubes with high utility value.

3:00 PM - 3:15 PM

[2C19] Direct methane reforming reaction –Examination of preparation method of iron oxide catalyst–

○Noriyasu Okazaki¹, Kouichirou Iwama¹, Shou Fukishima¹, Youhei Sakurai¹, Hirotoshi Sakagami¹ (1. Kitami Institute of Technology)

In the direct methane reforming reaction (DMR), hydrogen can be produced without generating carbon dioxide. At the same time, highly conductive nanocarbon can also be obtained. However, in order to put it into practical use, it is necessary to reduce the cost of the catalyst. Therefore, an iron oxide-alumina catalyst was prepared by the coprecipitation method, the deposition method, and the physical mixing method, and DMR was tried. As a result, it was found that the DMR activity and nanocarbon diameter differ depending on the preparation method, and the dispersibility of iron oxide is involved. Also showed activity in simple physical mixing method.

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