CO2 is also generated in various process industries e.g., natural gas processing, hydrogen purification, cement and steel industries and emitted by the transportation sector. Projections by International Energy Agency (IEA) indicate that fossil fuels, coal and hydrocarbon, will remain the major ...
Water splitting.Water splitting is the light- or electricity-driven production of oxygen and hydrogen from water [126]. Hydrogen is a fuel with a particularly high gravimetric energy density, rendering it a transportable energy carrier. Hydrogen is indispensable in the Haber − Bosch process ...
In this paper, we provide a global review of hydrogen energy need, related policies, practices, and state of the art for hydrogen production, transportation, storage, and utilization. Keywords: hydrogen; renewables; production; storage; utilization ...