Earliest
Known Process for Separating
Hydrogen & Oxygen
Sam Leach has reported a machine that, once started, will continuously separate hydrogen from water without any outside source of energy. The rights have been sold to the Presley Corporation of Newport Beach, California and MJM Hydrotech of Los Angeles. The event has been reported in both the New York Times (March 29, 1976) and Newsweek (April 19,1976). Science News carried it on April 24, 1976. The device hasn’t been tested by both the Approved Engineering Test Laboratories and Smith-Energy Co. Testing Laboratories. What they tested, however, was that water was being separated into hydrogen and oxygen after an initial warm-up cycle. They did not test that the reaction was self-sustaining. The machine is reported to be a trunk-sized box containing two steel tanks, each containing granules of an unidentified metal releasing hydrogen. After awhile the reactant must be heated to remove the oxygen and restore the metal to its original condition. To be both useful and self-sustaining, the hydrogen produced must make the steam, produce the heat to recycle the reactant, and have a surplus left over to do useful work. The French chemist Lavoisier in 1776 developed the reaction of making hydrogen. He passed steam over iron filings, which bound the oxygen and released hydrogen. Many commercial companies use similar processes today but their energy efficiency is around 10%, so they’re far from self-sustaining. Keep watching for developments on this one because even a more efficient reaction, still shy of self-sustaining, could prove useful. The steam needed could be made from a solar collector. The
above is an age-old process invented in 1776, which as far as we know
is the first man-made extraction of hydrogen. There is also an article
in American Heritage of Invention & Technology (Fall of 1985) about
a French balloonist, Jean-Pierre Blanchard. He flew regularly, he flew
for a living, and he had no other means of support. He preferred hydrogen
because of its relative tidiness and greater levity; eleven times lighter
then hot air. To produce the gas for one balloon, three thousand pounds
of sulfuric acid had to be poured over a like amount of iron scraps in
oak barrels. |