$4 – $5 per kilogram of hydrogen.
In steam reforming, hydrogen is produced by reforming the hydrocarbon feedstock, producing synthesis gas containing a mixture of carbon monoxide and hydrogen. The carbon monoxide is then reacted with steam in the water-gas-shift reaction to produce carbon di Estimated cost of hydrogen per kilogram in a variety of scenarios. With all of this in mind, here are the cost estimates per kilogram (which each include $1.25 for taxes): Hydrogen from natural gas (produced via steam reforming at fueling station). $4 – $5 per kilogram of hydrogen. Hydrogen from natural gas (produced via steam reforming off-site and delivered by truck). In steam-methane reforming, methane reacts with steam under 3–25 bar pressure (1 bar = 14.5 psi) in the presence of a catalyst to produce hydrogen, carbon monoxide, and a relatively small amount of carbon dioxide. Steam reforming is endothermic—that is, heat must be supplied to the process for the reaction to proceed. The cost of hydrogen production is an important issue. Hydrogen produced by steam reformation costs approximately three times the cost of natural gas per unit of energy produced. This means that if natural gas costs $6/million BTU, then hydrogen will be $18/million BTU. Steam-Methane Reforming. Most hydrogen produced today in the United States is made via steam-methane reforming, a mature production process in which high-temperature steam (700°C–1,000°C) is used to produce hydrogen from a methane source, such as natural gas. C. E. Thomas Page 2 of 4 10/19/2009 The last two rows show the estimated costs with higher SMR production volumes and for a 1,500 kg/day fueling system, where hydrogen cost could be less than $2/ggre.
http://ietd.iipnetwork.org/content/steam-reforming http://www.h2carblog.com/?p=461 http://energy.gov/eere/fuelcells/hydrogen-production-natural-gas-reforming http://www.fsec.ucf.edu/en/consumer/hydrogen/basics/production.htm http://energy.gov/eere/fuelcells/hydrogen-production-natural-gas-reforming http://www.cleancaroptions.com/Hydrogen_costs_per_mile.pdf
cost of hydrogen steam reforming