Science Forums 2

[UncleAl]

afraid not quite so, hydrogen recovery from integrated gassification combined cycle systems using mixed protonic/electronic conductive membranes will provide

This is a PHASE DIAGRAM,

http://www.lsbu.ac.uk/water/phase.html
Note temp in K not C!

This is the way the universe operates. It cannot be avoided, cheated, unseated by majority vote, or altered by shaking dust off Tinkerbell's bottom. If you want electrolysis in a "liquid-like density" phase for water at 800C (1073 K) it will have a pressure hard by 10^11 pascals or 15 million psi. It's ******** as an industrial process.

The highest commercially sustainable pressures at temperature are a factor of ten less - in HPHT diamond synthesis presses.

http://www.me.berkeley.edu/diamond/s...ro/cphased.htm

The maximum pressurized volume so obtainable is a few cubic inches. A company running HPHT presses would collapse in laughter if you suggested running feedthroughs or so pressurizing even a cubic foot.

When an HPHT press fails the spurt comes out at hypersonic speeds. Ballistic shielding will only stop the chunks flying behind it. Some large arrays of HPHT presses (Ireland) dispense with ballistic encasement entirely, given the observation that it won't make much difference, it takes up room that could be more presses, replacement labor is cheap to train, and modern presses don't rupture. Often.