FAQ about Green Hydrogen

6. What is the difference between black, blue, and green Hydrogen?

The designations black hydrogen, blue hydrogen and green hydrogen are intended to indicate the different processes from which H2 has been obtained, since there is only one single hydrogen, which is ranked number one in the periodic table.

Black hydrogen is made from oil or coal through a process that sends carbon dioxide (CO2) into the atmosphere. Blue hydrogen, the most widely used, is derived from natural gas, but greenhouse gases are also released during the method. Green H2 is extracted from the water by electrolysis, a 100% clean procedure, but is too expensive for now.

Hydrogen from oil, coal, and natural gas have been in use for a long time. It is used in the electrical, metallurgical, chemical, air and maritime transport industries, as well as in space travel, in which H2 played an important role as a rocket propellant, being the fuel that carried the humans to the moon.

Other sections of Green Hydrogen

The purpose of this report is to update the reader about the present and future of green hydrogen. Hydrogen is more efficient and cleaner burning, so it is renewable energy and does not harm the environment.

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