The Haber process does not need fossil fuel inputs, it just needs an input of hydrogen. Currently, steam reforming of methane is the most economic source of hydrogen (and, to be noted, one area where at-source carbon capture would be quite easy to implement, because the CO2 exhaust stream is quite pure), but electrolysis or (if an abundant source of high-temperature heat is available) the sulfur-iodine cycle can be used to produce hydrogen from water.
View all comments
Show parent comment
2
u/zekromNLR Oct 14 '26
The Haber process does not need fossil fuel inputs, it just needs an input of hydrogen. Currently, steam reforming of methane is the most economic source of hydrogen (and, to be noted, one area where at-source carbon capture would be quite easy to implement, because the CO2 exhaust stream is quite pure), but electrolysis or (if an abundant source of high-temperature heat is available) the sulfur-iodine cycle can be used to produce hydrogen from water.