Hydrogen separator could power fuel cells from city gas

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alex @ May 28th 2007 10:27AM

City gas is primarily CH4. The reaction to separate the H usually leaves CO or CO2. So, instead of generating CO or CO2 from the tailpipe, I can generate it at home instead? Maybe, using inline one-way molecular filters, we can pump that back up to the city to a central sequestration station?

The link is behind a wall so hard to know if this is really useful or not.

Neutral

Chris @ May 28th 2007 2:08PM

The useful thing about stationary (and central) generating, the CO and CO2 generated can be reclaimed safely. One could use a water-gas shift reactor to reform CO into more H2 and CO2, and the CO2 could be reclaimed with biomass, and eventually processed into fermentable sugars and then into ethanol for fuel or another H2 source.

This separator, while not revolutionary, would be a nice step in the right direction. Steam reforming is the current method of getting H2 from natural gas, and it ironically requires a combustion reaction for heat.

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