Re: [biofuel] Producing Hydrogen

2004-06-17 Thread robert luis rabello
John Woolsey wrote: I am interested in looking into the current techniques for producing hydrogen. The technology is, for the most part, old, well understood and expensive! What is considered most efficient. Electrolysis is endothermic at voltages below 1.3 per cell, so it's

[biofuel] Producing Hydrogen

2004-06-16 Thread John Woolsey
I am interested in looking into the current techniques for producing hydrogen. What is considered most efficient. Is it more efficient at higher pressures? Is the best way reversing a fuel cell? Electrolyzing water? Are there any good web sites on this? Are there filters for hydrogen gas like