ENEOS：豪グリーン水素を液体化：using Direct MCH®（動画）：
ENEOS: Australian green hydrogen liquefied: using Direct MCH®：
ENEOS：澳大利亚绿色氢液化：使用 Direct MCH®
ートルエンを直接MCHに還元する新技術ー
ENEOS
千代田化工建設11月2日、
- 豪州で製造した「グリーン水素」を、
- 液体化して日本に輸入する実証実験を、
- 実施したと発表した。
今後、製造装置などを大型化して2030年以降の商用化を目指す。
グリーン水素の液体化：
- 太陽光発電を使って、
- 水とトルエンを電気分解し、
- メチルシクロヘキサン（MCH）という液体にした。
液化水素のMCHを運搬：
その上で、液化水素のMCHを日本に輸入した。
日本で、MCHから水素を取り出し、FCVを走行させることに成功した。
MCHを常温で運搬：
水素のまま運ぶには、セ氏零下253度まで冷やして液化し、専用船を使う必要がある。
一方、MCHは常温で運搬できる。
石油タンカーや貯蔵タンクを、そのまま利用でき、輸送コストを抑えられるという。
MCHから水素を抽出：
両社は2019年に、MCHから0.2キログラムの水素を取り出す実証実験を実施した。
今回の実験では、6キログラムまで増やした。
トヨタのFCV「ミライ」のタンクを、満タンにできる量とのこと。
実用レベルの運搬としては、世界初になるという。
今回、トルエンを直接MCHに還元できる新技術を採用することで、設備費を半減した。
今後、電解槽の大型化を進め、商用化に向けコストの低減を進める。
日本経済新聞
https://www.nikkei.com/article/DGXZQOUC026VK0S1A101C2000000/
ENEOS, Chiyoda, and QUT Successfully Scaled Up an Australian CO2-Free Hydrogen Supply Chain Demonstration using Direct MCH®
~Filling a FCV with hydrogen derived from renewable energy~
ENEOS Corporation
Chiyoda Corporation
Queensland University of Technology (President: Margaret Sheil; “QUT”)announced that they had succeeded in expanding the scale of their technological verifications of CO2- free hydrogen to a practical level for the first time in the world.
We commenced technical verifications of the production, transportation, and dehydrogenation of CO2-free hydrogen in 2018.
In order to store and transport hydrogen, it was previously necessary to store hydrogen produced via water electrolysis in a tank,
then convert it to methylcyclohexane (“MCH”), which is a type of organic hydride.
The technology developed by ENEOS
significantly simplifies this process,by directly producing MCH from water and toluene through the electrochemical synthesis of organic hydride*2(Direct MCH® *3).
In March 2019,
ENEOS, Chiyoda and QUTsucceeded in directly producing MCH from water and toluene derived from Australian renewable energy,
transporting this MCH to Japan, and extracting hydrogen from it.
This was the first successful verification of such a technology in the world,
but produced only a lab- sized amount of MCH containing 0.2 kilograms of hydrogen.
We have expanded the scale of MCH produced to a practical level so that it contains approximately 6 kilograms of hydrogen;
they have also extracted hydrogen from this MCH in Japan, and actually used the hydrogen to fill and drive a fuel cell electric vehicle (FCEV).
For the reasons listed below, the technologies of ours used in this technological verification are superior to other technologies for a transportable hydrogen supply chain.
Party Technology Features
November 2, 2021QUT Concentrated Photovoltaic Power Generation System
A power generation system that captures sunlight by gathering solar irradiation with a Fresnel lens and adjusting the orientation of solar panels according to the position of the sun; compared to fixed-array solar panels, the system generates a much higher amount of electricity per unit surface area.
ENEOS Direct MCH®
A high-efficiency electrolysis process that converts toluene directly into MCH, without first converting it into hydrogen;
it is capable of reducing facility costs for MCH production by approximately 50%*4 compared to the conventional process to produce MCH.
Chiyoda Dehydrogenation technologies
Using independently developed catalysts and dehydrogenation reactors, the technologies generate extremely high hydrogen yields from MCH.
In anticipation of a hydrogen-oriented society, ENEOS intends to further increase production volumes
https://www.eneos.co.jp/english/newsrelease/2021/pdf/20211102_01.pdf
Eneos to demonstrate H2 extraction from methylcyclohexane at refining sites – Chemical Engineering