Hydrogen recovery and purity of different purification technologies.

Purification Technology	H2 recovery (%)	H2 purity (%)	Reference
Cryogenic	92.7%	100%	102
Membrane (cellular based carbon hollo fiber)	90%	99.5%	103
Membrane (carbon molecular sieve)	97%	99.95%	104
PSA (6-step, 2-bed)	73.52%	99.87%	105