What is “SPERA HYDROGEN” system?
The SPERA Hydrogen system
Chiyoda’s business plan for storing and transporting hydrogen utilizes the organic chemical hydride (OCH) method.
- Hydrogen as liquid methylcyclohexane (MCH), which is produced from toluene and hydrogen, can be safely and economically stored and transported. Both toluene and MCH are maintained in a liquid state at ambient temperatures and pressures. MCH is commonly used as a solvent, for example in whiteout correction tape, and has a low degree of risk as a chemical substance. By utilizing the OCH method with MCH, hydrogen in a liquid can be stored and transported at a compressed volume of approximately one 500th as that of hydrogen at ambient temperature and pressure.
- Gaseous hydrogen is catalytically extracted from MCH through the dehydrogenaton process at the site hydrogen is supplied to hydrogen users. Toluene a by-product of the hydrogen extraction process is repeatedly recycled as a raw material for producing MCH. Chiyoda has successfully developed the proprietary dehydrogenation catalyst for MCH and has conducted technological demonstrations to make the catalyst for practical use. Chiyoda has registered MCH including hydrogen for storage and transportation as the trade name SPERA Hydrogen.
1. SPERA Hydrogen is easy to handle
SPERA Hydrogen, a stable liquid at ambient temperature and pressure, is as easy to handle as petroleum or natural gas.
2. SPERA Hydrogen can lower capital investment in infrastructure
As MCH and toluene are both designated as hazardous materials the same as gasoline is under the Fire Defense Law in Japan, it is feasible to repurpose existing petroleum distribution infrastructure for SPERA Hydrogen, thereby lowering capital investment in realizing a hydrogen-based society.
3. SPERA Hydrogen can reduce risk in storage and transport of commercial amounts of hydrogen
The SPERA Hydrogen system of long-term storage and long-distance transport reduces the level of risk, unlike conventional hydrogen systems, to the same level as that of petroleum-product systems.