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Mechanochemical breakthrough unlocks cheap, safe, powdered hydrogen
Mechanochemical breakthrough unlocks cheap, safe, powdered hydrogen
Australian scientists say they've made a "eureka moment" breakthrough in gas separation and storage that could radically reduce energy use in the petrochemical industry, while making hydrogen much easier and safer to store and transport in a powder.
newatlas.com
Australian scientists say they've made a "eureka moment" breakthrough in gas separation and storage that could radically reduce energy use in the petrochemical industry, while making hydrogen much easier and safer to store and transport in a powder.
Nanotechnology researchers, based at Deakin University's Institute for Frontier Materials, claim to have found a super-efficient way to mechanochemically trap and hold gases in powders, with potentially enormous and wide-ranging industrial implications.
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The team has demonstrated that grinding certain amounts of certain powders with precise pressure levels of certain gases can trigger a mechanochemical reaction that absorbs the gas into the powder and stores it there, giving you what's essentially a solid-state storage medium that can hold the gases safely at room temperature until they're needed. The gases can be released as required, by heating the powder up to a certain point.
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The results are absolutely remarkable from a numbers standpoint. This process, for example, could separate hydrocarbon gases out from crude oil using less than 10% of the energy that's needed today. "Currently, the petrol industry uses a cryogenic process," says Chen. "Several gases come up together, so to purify and separate them, they cool everything down to a liquid state at very low temperature, and then heat it all together. Different gases evaporate at different temperatures, and that's how they separate them out."
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Clearly, this advance has some potentially enormous implications, which could contribute greatly to energy use reduction, emissions reduction, the green energy transition and even reducing fuel and chemical prices. The team has submitted provisional patent applications, and we look forward to learning what's possible as the method is refined and tailored to useful applications.
Commentary:
If this process as described truly reduces the dangers of storage for Hydrogen and other gases like Methane these scientists have made a great breakthrough.
There is another question to this supposed breakthrough. They have not revealed the energy density of this storage system, or how much energy is lost when extracting the available hydrogen.
In theory, this process would solve the problem of storing and transporting hydrogen and other gases for vehicles and Space craft.