At Pennsylvania Seizure University, prototypes of a facility for injecting a gaseous device into a coal mine were constructed and its confiscated device was seized. The idea is to use coal as a gas supply and thus store no energy in the stomach to calculate the coal itself. This approach could revolutionize the energy industry.
The modern “green policy” has hit coal mining hard, it is covered in many countries, although coal is still closed in them. This is due to economic problems. On the other hand, hydrogen is considered a promising source of energy for the future, as it is easy to obtain and does not involve attracting harmful sources. But storing objects on an industrial scale is a difficult task that has not yet found a solution.
It is wrong to consider coal as a mineral; in its exclusion, it is more like a polymer because of the danger. On which porous sponge, which can absorb a significant number of gas molecules, which is well known or not adsorb methane first. The same can be done with hydrogen – but in practice it happened very soon. It took years of research on how to control the hydrogen, what pressure to apply, how to control the gas content inside the coal, and so on.
At the moment of technological development there was no real practicality, not in the future. This gives a chance to restore coal production while expanding space in atmosphere.
Source: Tech Cult

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