From: firstname.lastname@example.org (Dick Pilz) Organization: Teleport - Portland's Public Access (503) 220-1016 Date: Wed, 20 Nov 1996 03:03:21 GMT References: 1
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In article <rddE0HJvC.1pG@netcom.com> Malcolm Weir <email@example.com> writes: >Woodhams wrote: >The three basic options are liquification and subsequent fractional >distillation (most effective), chemical O2 absorbtion (OK, but what if >the O2 scrubber wears out, letting un-scrubbed air into the system?), >or molecular sieves (which are slow, but used on the F16 to collect >O2). >My bet would be distillation, particularly if you can grab air from >outside at a low ambient temperature. Nah, they probably use a pressure filter (may bundles of hollow tubes) like those used for desalination. You can buy one to nitrogen pressurize beer dispensation for less than $2K (prevents gassy beer in taverns) and it is about the size of a bread box. Dick Pilz | Back up my hard drive?!? CNE, ME | I can't find the reverse switch!