Thermochemical & Electrolysis technologies - Hydrogen Production
Hydrogen is often produced through thermochemical processes, which heat to separate hydrogen from its source.
● Natural Gas Reforming
About 95% of the hydrogen produced in the world today is created through steam methane reforming. In this process, high-temperature steam and heat are used to separate hydrogen from a methane source, usually natural gas. An alternative method, called partial oxidation, reacts with methane and other hydrocarbons found in natural gas with oxygen to produce synthesis gas, from which hydrogen can be separated.
● Gasification
Gasification involves applying heat, pressure, and steam to convert coal or biomass into a gaseous mixture of hydrogen, carbon monoxide, carbon dioxide, and other compounds.
Absorbers then separate the hydrogen from the gas mix.
● Renewable Liquid Fuel Reforming
Like natural gas reforming, renewable liquid fuel reforming uses high-temperature steam to
create a gaseous mixture of hydrogen and carbon monoxide. In this case, however, the source
is a renewable fuel such as bio-oil or ethanol.
Electrolytic Hydrogen Production
○ Electrolytic hydrogen production methods use electricity to split water (H2O) into hydrogen (H2) and oxygen (O). When the process is reversed, hydrogen and oxygen are combined to produce electricity and water.
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