Why do we say that the production of coal into hydrogen is not essentially the production of coal in

The essence of coal-based hydrogen production is not that coal-based hydrogen production is because the main body is still water-based hydrogen production. Coal-to-hydrogen production does not actually use coal to produce hydrogen. The key is to use water to produce hydrogen. The role of coal is actually to use its thermal energy to cause the water vapor displacement reaction to split the water and produce hydrogen. . It is not that the use of coal for electricity and hydrogen production will necessarily emit pollutants, but that coal-fired electricity generation and conventional coal-based hydrogen production methods currently adopted on a large scale by humans will certainly emit pollutants.