Advertisements
Advertisements
प्रश्न
Explain briefly how hydrogen is manufactured on a large scale, from steam.
उत्तर
Manufacture of H2 from steam:
From natural gas: Natural gas is obtained from petroleum wells and consists mainly CH4 (methane). It is mixed with steam at 30 atm. and passed over heated nickel 800°C, when water gas is formed.
\[\ce{CH4 + H2O (steam)->[Ni][800°C]\underset{\text{(water gas)}}{[CO + 3H2]}}\]
Separation of CO: The gaseous mixture of [CO and H2] is passed through ammonical cuprous chloride solution in order to dissolve uncombined CO.
\[\ce{CuCl + CO + 2H2O -> CuCl.CO.2H2O}\]
Thus hydrogen gas is left over.
APPEARS IN
संबंधित प्रश्न
Name a process by which hydrogen gas is manufactured.
Under what conditions iron reacts with water.
Hydrogen is manufactured by the 'Bosch Process'.
Give the equation with conditions.
In the industrial method of preparation of hydrogen by the Bosch process give the reason for use of addition of a promoter to the catalyst in the final step.
In the industrial method of preparation of hydrogen by the Bosch process give the name of the solution which absorbs the unreacted carbon monoxide.
Give reason for the following:
In Bosch process – the final gaseous products are passed through caustic potash [KOH] soln.
Select the correct options for the following statement:
The metallic compound used as a catalyst in Bosch process.
Select the correct options for the following statement:
In Bosch process the catalytic reduction of steam to hydrogen is carried out by ___.
How can you obtain hydrogen from a mixture of hydrogen and carbon monoxide?
How are the unreacted gases separated out in ‘Bosch process’ in the manufacture of hydrogen.
