In this work the purification of biohydrogen was attempted in mixed gas measurements using a commercial polyimide membrane module.
The formation of μc-Si H was only found in the environment of hydrogen plasma, where Ar and H2 mixed gas was used.
For an air propellant gas, using helium as the carrier gas increases the particle velocity due to the low average molar mass of the mixed propellant gas.
In addition to hydrogen production, the concentration of bioH2 by polyimide membrane under different operational circumstances was investigated using pure and mixed gases, as well.
We have also had some experimental collections to 100 120 m using mixed gas rebreathers in Palau and a successful demonstration of the use of the "Deep Rover" one-man submersible, again in Palau, where due to the safety considerations of only having access to one submersible, a 400 m limit tether was used.
Mixed gas permeability was measured using equimolar mixtures of CO2 and H2 feed streams at one atmosphere total pressure in steady-state flux experiments over the 298 423 K temperature range.
The mixed gas was controlled by using a gas mixer (Kofloc GB-3C, KOJIMA Instrument Inc ., which can mix two or more gases at a defined partial pressure and mass flow rate.
The catalysts were synthesized using two heat-treatment steps, the first using a mixed gas containing H2, O2, and N2 under fixed conditions, and the second using NH3 gas at various temperatures and times.
The iron nanopowder was obtained by evaporating a thin iron wire in an argon gas, and as for the iron-oxide powers, a mixed gas of Ar/O2 was used as an ambient gas.
These mixed gas results can be used in the assessment of NPC membranes as a suitable technology for both carbon dioxide separations from air-blown syngas and from natural gas.
