How is hydrogen manufactured?

Question

how are the oxygen and hydrogen separated fron water to produce hydrogen?

Answer 1

Well, if it has oxygen in it, all you need to do is remove the oxygen by placing the combination of the hydrogen & the oxygen into a cup & seal the cup with a lid tightly. Leave it siting in a room at room temperature about over night or so & you will have produced hydrogen.

Answer 2

Electrolysis of water forces the bonds between H and O to break.

Bulk amounts of Hydrogen are produced as follows:

Steam reforming

Commercial bulk hydrogen is usually produced by the steam reforming of natural gas. At high temperatures (700–1100 °C), steam (H2O) reacts with methane (CH4) to yield syngas.

CH4 + H2O → CO + 3 H2 + 191.7 kJ/mol

The heat required to drive the process is generally supplied by burning some portion of the methane.

Answer 3

There is a large amount of hydrogen produced industrially for use as feed stock for the ammonia synthesis using Haber-Bosch technology:

The typical modern ammonia-producing plant first converts natural gas (i.e., methane) or liquified petroleum gas (such gases are propane and butane) or petroleum naphtha into gaseous hydrogen.

Catalytic steam reforming is then used to form hydrogen plus carbon monoxide:

CH4 + H2O → CO + 3H2

The next step then uses catalytic shift conversion to convert the carbon monoxide to carbon dioxide and more hydrogen:

CO + H2O → CO2 + H2 .

The manufacture of hydrogen is not carried out by the electrolysis of water, because of the high cost of this process. However, it is often carried out in the laboratory to demonstarte the practice of electrolysis.

Two electrodes are connested to a DC source, such as a car barttery, and these are placed in a container of water. the electric current splits the water into its chemical components:

2H2O → 2H2+O2

Because pure water does not ionise to any degree it is necessary to add an electrolyte to the water. a small amount of H2SO4 is suitable.

Hydrogen will appear at the cathode (the negatively charged electrode, where electrons are pumped into the water), and oxygen will appear at the anode (the positively charged electrode). The generated volume of hydrogen is twice the volume of oxygen, and both are proportional to the total electrical charge that was sent through the water.