Page 38 - Steel Tech India eMagazine Volume April 2022

VOL. 16 • NO. 3 • April 2022

A number of chemical, solid state and other approaches economy.
have been examined, and are currently being Due mainly to its high hydrogen capacity, ammonia has
investigated, that could lead to higher stored energy the potential for use as a carrier for hydrogen delivery
density. little attention, however, has been given to the and distribution and, perhaps, as an onboard storage
possibility of using liquid anhydrous ammonia, NH3, as medium. there are, however, significant barriers to
a medium for the storage of hydrogen onboard vehicles overcome before it could satisfy the requirements for
or for use as a distribution medium.
either of these uses.
this document will consider the possible roles Safety is the first and foremost requirement for any
ammonia might play in implementation of a hydrogen transportation fuel. If ammonia is to play a role in the
economy. It is intended to explain the rationale for transportation system, all associated safety issues
considering the use of ammonia and to elucidate and must be completely resolved. these include toxicity
weigh the advantages and disadvantages associated in the case of a sudden accidental release, small leak
with ammonia. Finally recommendations are given as detection, and other hazards such as flammability.
to what role ammonia might play in the transition to a
hydrogen economy or in the final implementation of that Source: U.S. Department of Energy (DOE)

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