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gone-ot · 12-20-2014, 01:31 PM

FACT - it's ALL about energy DENSITY which is *why* a gallon of gasoline contains more hydrogen atoms than a gallon of compressed hydrogen gas.

And, if you think growing ethanol is energy-wasteful, consider how much energy is required to: 1) first create Hydrogen gas (H2); then (2) compress & cool it from gas to liquid; and finally (3) store it in a cryogenic pressure container(*). And, maintaining it at cryogenic temperature (-423.17ºF) AIN'T free or easy, either.

(*) hydrogen-embrittlement is known problem!

12-20-2014, 01:31 PM	#27 (permalink)
gone-ot ...beats walking... Join Date: Jul 2009 Location: . Posts: 6,190 Thanks: 179 Thanked 1,525 Times in 1,126 Posts	FACT - it's ALL about energy DENSITY which is why a gallon of gasoline contains more hydrogen atoms than a gallon of compressed hydrogen gas. And, if you think growing ethanol is energy-wasteful, consider how much energy is required to: 1) first create Hydrogen gas (H2); then (2) compress & cool it from gas to liquid; and finally (3) store it in a cryogenic pressure container(). And, maintaining it at cryogenic temperature (-423.17ºF) AIN'T free or easy, either. () hydrogen-embrittlement is known problem! Last edited by gone-ot; 12-20-2014 at 01:43 PM..