there are many routes to Hydrogen - some are cheaper than others.
the old fashioned route is still almost certainly the cheapest .
1) Convert coal to -> coke in a LURGI coking still.
2) Feed coke to a water gas generator ( humphries and Glasgow). maintain a constant firebed level , and react steam and air ( or Oxygen for better combustion)over the fire bed.
3) Result water gas 80% hydrogen , ballance of gases Co2, CO, hydrogen sulphide . CO2 and CO separated and adsorbed for commercial usage. ( last time I checked CO was bringing in $9000/ton
Hydrogen sulphide adsorbed into the solid phase in Iron oxide boxes .
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there are many routes to Hydrogen - some are cheaper than others.
the old fashioned route is still almost certainly the cheapest .
1) Convert coal to -> coke in a LURGI coking still.
2) Feed coke to a water gas generator ( humphries and Glasgow). maintain a constant firebed level , and react steam and air ( or Oxygen for better combustion)over the fire bed.
3) Result water gas 80% hydrogen , ballance of gases Co2, CO, hydrogen sulphide . CO2 and CO separated and adsorbed for commercial usage. ( last time I checked CO was bringing in $9000/ton
Hydrogen sulphide adsorbed into the solid phase in Iron oxide boxes .
Result fairly cheap hydrogen
by Norman Davison