Can I use this to dehydrate ethanol?

I use it for this purpose as well. Common store purchased 151 proof grain alcohol can be very pure with this. I do 2 absorption and separations to get anhydrous or nearly anhydrous ethanol A plain coffee filter or filter paper removes most of the dust/cloudiness. The rest easily settles out over a few days and the liquid can be separated from it.

What is the regeneration temperature and time for these?

Molecular sieves are definitely not a single-use material. You could do that but you're "doing it wrong." There are numerous recommendations for drying/reactivating them. Try one or more until you find one that works for you.

Would this work for oxygen concentration? (Removing N2 from O2?)

Lithium zeolite and argon zeolite are the 2 most specific types for oxygen concentration. Lithium is the most effective, but also more costly.

At what temperature do these molecular sieves regenerate?

I regen at 250 to 300 1 hr with heated air the dewpiont less then 10% other people have deferential results best to keep air moving without burning if you burn the sieves that will be less effective to absorb water molecule if you live in dry climate it takes less energy humidity plays big factor you have to experiment in your area

Hfs R Molecular Sieve 3a Zeolite 8x12 Mesh Desiccant Beads

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Description

💼 Stay dry, stay sharp — the pro’s choice in molecular sieves!

PRECISION PARTICLE SIZE - Uniform 8x12 mesh beads (1.6-2.5mm) for consistent, reliable adsorption performance.
SUPERIOR MOISTURE CONTROL - Adsorbs up to 20% water by weight, ensuring ultra-dry environments for sensitive industrial processes.
INDUSTRIAL GRADE DURABILITY - Engineered for high-pressure stability and contamination resistance, built to last in demanding applications.
HIGH TEMPERATURE REGENERATION - Easily regenerates at 350-600°C, extending lifespan and reducing replacement costs.
SELECTIVE 3 A MOLECULAR SIEVING - Targets molecules smaller than 3 angstroms, perfect for drying unsaturated hydrocarbons and polar liquids.

HFS(R) Molecular Sieve 3A Zeolite features 8x12 mesh reusable desiccant beads with a uniform pore structure that selectively adsorbs molecules under 3 angstroms. With a high equilibrium water capacity of up to 20%, it excels in drying unsaturated hydrocarbons and polar liquids. Thermally regenerable between 350-600°C, this 500g industrial-grade desiccant offers reliable moisture control and extended service life for professional scientific and industrial applications.

Specifications

ASIN	B06Y2B4CPK
Best Sellers Rank	#83,544 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #192 in Desiccants
Date First Available	April 5, 2017
Item Weight	1.1 pounds
Item model number	ZELOITE
Manufacturer	HFS
Product Dimensions	8.5 x 5.5 x 2 inches

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