How can the production of dihydrogen obtained from coal gasification,

1.	How can the production of dihydrogen obtained from coal gasification, be increased?
Answer» The process of producing syngas or synthesis gas from coal is called coal gasification C(s) + H₂O(g) Ni 1270K -------> CO(g) +H₂(g) The production of hydrogen can be increased by reacting carbon monoxide of syngas with the steam in presence of iron chromate as catalyst at 673K. This is called water shift reaction CO (g) +H₂O (g) FeCrO₄, 673K ---------> CO₂ (g) +H₂ (g) The CO₂ thus produced can be removed either by scrubbing with a solution of sodium arsenite or by passing the mixture through water under 30 atm. Pressure when CO₂ dissolves leaving behind H₂ which is collected.

How can the production of dihydrogen obtained from coal gasification, be increased?

Answer»

The process of producing syngas or synthesis gas from coal is called coal gasification

C(s) + H₂O(g) Ni 1270K -------> CO(g) +H₂(g)

The production of hydrogen can be increased by reacting carbon monoxide of syngas with the steam in presence of iron chromate as catalyst at 673K. This is called water shift reaction

CO (g) +H₂O (g) FeCrO₄, 673K ---------> CO₂ (g) +H₂ (g)

The CO₂ thus produced can be removed either by scrubbing with a solution of sodium arsenite or by passing the mixture through water under 30 atm. Pressure when CO₂ dissolves leaving behind H₂ which is collected.

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