Alternatives to molecular sieve

[ThomasBrewer]

I ran across a reference to using tapioca pearls as dessicant for ethanol. Seems that the crystalline starches in the outer layers of the pearl have a very good affinity for water. They can be regenerated and also used as a starch feedstock once depleted. Seems like a neat technique.

Study finds more effective way to dry ethanol, reduce costs
https://www.purdue.edu/newsroom/researc ... pioca.html

Relevant patent: https://patents.google.com/patent/US9221733B2/en