Powering ships with hydrogen from methanol

https://techxplore.com/news/2022-07-powering-ships-hydrogen-methanol

"scale membrane from original length ofust 105 mm to 500 mm, engine propulsion 1 MW... develop propulsion systems of 20 MW and above...  waste heat from the engine is used to heat the reactor, significantly increasing the efficiency of the system. Secondly, the remaining carbon dioxide is returned to a fluid state downstream of the reactor and fed into the empty methanol tanks. When the ship arrives at port, the CO2 is fed into tanks and can then be used for the next methanol synthesis process"

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