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

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

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

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

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

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

The production of dihydrogen obtained from coal gasification can be increased by reacting carbon monoxide of syngas mixture with steam in presence of a catalyst iron chromate. What is this process called?