Run ethanol in a slightly modified closed loop?

[BigM]

Here’s a link to a similar thread. Oldie but a goodie:

Ethanol Extraction using bho closed loop

I’d like to eventually convert my extractor to run ethanol instead of butane. I could use nitrogen to push cryo ethanol through my material columns. Then I can use nitrogen to attempt to dry my columns. Then, I can vac my columns to dry even further with my diaphragm pump. Lastly, I can inject steam from bottom of columns to completely dry the columns of ethanol. Any thoughts? Edit: Are there any specific types of gaskets needed? (Sorry if this has been posted somewhere I didn’t find anythin…