how is hydrogen made?

Answer 1

Yes, most hydrogen is made from natural gas in the steam reforming process, followed by the water-gas shift reaction.

CH4 + H2O -- > 3H2 + CO

CO + H2O -- > H2 + CO2

So one methane molecule plus two water molecules result in four hydrogen molecules plus a molecule of carbon dioxide.

Note all the CO2 usually winds up getting dumped to the atmosphere. This is why switching to hydrogen alone is not an effective solution to reducing green house emissions.

Answer 2

These days most hydrogen is made by steam reforming of natural gas. This is usually done on a precious-metal catalyst like platinum

CH4 + H20<--> 3H2+CO

The mixture of CO and H2 is called syngas. The H2 is purified, typically by pressure-swing adsorption, where the syngas is passed through a packed bed which selectively adsorbs the carbon monoxide and leftover methane/water/CO2.

Answer 3

A number of ways. One is the reaction of metals with an acid. An example would be magnesium and HCl. Another is the electrolysis of water. When an electric current is passed through water with an electrolyte in it, it is broken apart into 2 parts hydrogen and 1 part oxygen.

Answer 4

There are several ways to make hydrogen. Industrially, im nt very sure but i thik the cracking of hydrocarbons contribute a fair bit to the total production of Hydrogen.

Hope this helps=)

Answer 5

currently the cheapest way is from natural gas, its mostly methane , Ch4 it comes off the top of a cracking tower, there are some industrial processes that it is a by product of like chlorine from seawater ,but it isn't used yet