"In principle it is possible to fly with hydrogen and we have a proof of concept but for the moment we can not produce enough hydrogen in an environmentally friendly manner for aviation".
The original process didn't produce enough hydrogen to be useful.
At the supercritical temperature, the own hydrogen of converted coal is not enough to form hydrogen of gas phase.
This difference is tiny: the proton's mass is 99.86% that of the neutron, yet if they were exactly the same mass, we would not be here, as there would not have been enough hydrogen in the universe to make long-lived stars.
The process does not yet produce enough hydrogen to compete with commercial alternatives.
It had far too much oxygen, which destroys organics, and not enough of the hydrogen that lets carbon atoms link to form the complex polymers needed for life.
Indeed, to calculate the number of tanks, the evaluation of the energy requirement could be not enough because the available hydrogen depends not only on the quantity contained in the tank, but also on other dynamic factors which influence the kinetics and hydrogen flow such as the temperature and, therefore, the heat exchange system.
The playing-card-size device truly does split water, but it's a prop, not a product, since producing enough hydrogen to meet even Nocera's minimal goal of powering a single hundred-watt light bulb through the night would require an artificial leaf the size of a door.
And not enough time had passed for hydrogen to build up, so there would have been less risk of the explosions that occurred after the company began flooding reactors on the second night and third day of the crisis.
However, if the hydrogen content is not enough, formation of FeO is expedited even at a high temperature.
It impermeable to gases, even those as light as hydrogen or helium, and, if that were not enough, chemical components can be added to its surface to alter its properties.
