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The Use of Metal Hydrides for Hydrogen Recovery from Industrial Off-Gas Streams
Date
1987-09Metadata
Show full item recordAbstract
This paper describes the development
of a concept to utilize metal hydrides
to recover hydrogen from industrial
off-gas streams. The activity
included a survey of industrial waste
streams a selection of metallic
hydriding alloys, testing of alloys
for poison tolerance and life, a
conceptual design and an economic
analysis. Of the nine alloys tested,
only the lanthanium-nickel-aluminum
type proved to have the durability to
be used in this concept. A fixed bed
reactor system, using LaNi4 25Alo75
in pelletized form, that was the only
concept that was technically feasible.
The cost of delivered hydrogen ranged
from $1.31 to $1.72/MSCF for a
refinery hydrotreater and an ammonia
purge gas stream based on an alloy
life of a year. These costs, though
lower than that for hydrogen produced
from steam reforming of natural gas,
are at best marginal relative to the
competing technologies such as
cryogenic, membrane and pressure
swing adsorption systems.
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Citation
Rebello, W. J.; Guerrero, P. S.; Goodell, P. D. (1987). The Use of Metal Hydrides for Hydrogen Recovery from Industrial Off-Gas Streams. Energy Systems Laboratory (http://esl.eslwin.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /92814.