Disposal/Conversion of Waste Hydrogen Gas
Disposal/Conversion of Waste Hydrogen Gas
(OP)
Hi All,
I am constructing an electrolyzer test stand that is going to produce small amounts (< 1 kg/hr) of hydrogen gas. Because of space requirements at my facility, this electrolyzer cannot be situated close enough to an appropriate vent or hood to release the gas into the atmosphere. I have never had this problem before, so I am looking for suggestions on how to safely and inexpensively convert or burn this waste gas.
The hydrogen will be relatively pure, greater than 99% purity, and pressure will be ambient (~1 atm). Flow will be relatively constant, however brief periods of turn down can be expected (so a fuel cell will probably be tough to implement). I've looked into catalytic recombiners but all I could find were ones for nuclear power plants... much larger and more expensive than the <1 kg/hr capacity I am dealing with here.
Any help is greatly appreciated.
I am constructing an electrolyzer test stand that is going to produce small amounts (< 1 kg/hr) of hydrogen gas. Because of space requirements at my facility, this electrolyzer cannot be situated close enough to an appropriate vent or hood to release the gas into the atmosphere. I have never had this problem before, so I am looking for suggestions on how to safely and inexpensively convert or burn this waste gas.
The hydrogen will be relatively pure, greater than 99% purity, and pressure will be ambient (~1 atm). Flow will be relatively constant, however brief periods of turn down can be expected (so a fuel cell will probably be tough to implement). I've looked into catalytic recombiners but all I could find were ones for nuclear power plants... much larger and more expensive than the <1 kg/hr capacity I am dealing with here.
Any help is greatly appreciated.





RE: Disposal/Conversion of Waste Hydrogen Gas
Regards
StoneCold
RE: Disposal/Conversion of Waste Hydrogen Gas
RE: Disposal/Conversion of Waste Hydrogen Gas
RE: Disposal/Conversion of Waste Hydrogen Gas
StoneCold is correct that the recombiners are often a part of the furnace if its a newer one. The generators, whether commercial or made by you, will need a lot of maintenance and attention. Pure H2 is really kind of nasty. It will embrittle the metals and the polymers (hoses and gaskets). It's hard to contain.
RE: Disposal/Conversion of Waste Hydrogen Gas
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RE: Disposal/Conversion of Waste Hydrogen Gas
You don't want the risk of discharging hydrogen into an improperly ventilated space. Find a way to get a vent line in there.