Drying unused molecular sieve

[couv]

Hi Gang,

I have some unused MS (13x) that has been sealed in a foil wrapper for quite some time. However, I would still like to get maximum efficiency from it. A while back, I copied a note found at a website (delta adsorb) basically saying MS can be regenerated by heating it to 130 deg C (266F) to 250 deg C (482F) but no mention of time. I have been unable to find the same information on the website and calling them resulted in an answer of something like 400 deg F for 2 hours. I'm not sure the tech understood I was using fresh product, so I am looking for some guidelines to prepare fresh, unused, MS 13x before I do a repack.

Web page search answers are all over the map. Surely one of you guys has this tribal knowledge.

Thanks,

Couv

[captain]

When I worked an air separation plant we passed 400 degree dry air through the sieve beds for 2 hours.

[couv]

Thanks Tom!

I hope all is well in my home state.

Robert