Re: Converting from Propane to Electricity. How much power can my rig handle?
- --- In Distillers@yahoogroups.com, "slipslider2" <slipslider2@y...>
> >What are the reasons that copper mesh is "far and away" a betterCopper mesh removes sulphides. Raschig rings do not. Copper mesh
> option than rashig rings?
has a much greater surface area than raschig rings for a given
volume of column. Therefore separation is much better with copper
6 mm Raschig rings..... 140 m2/m3
13 mm Raschig rings.... 40 m2/m3
Copper mesh............ 800 m2/m3
Copper mesh packed columns can actually be built shorter, as the
HETP for copper mesh is roughly half the height of a column packed
with 6mm raschig rings, and nearly quarter the height of 13mm
6 mm Raschig rings..... 23 cm
13 mm Raschig rings.... 36 cm
Copper mesh............ 10 cm
Raschig rings are designed more for large commercial columns and are
expensive. Copper mesh is more suited to small diameter columns
(100mm and under) and is cheap and readily available.
Tony Ackland's Homedistiller site explains all this. He doesn't
specifically compare copper but he does compare stainless steel
wool, and copper is physically its equal or even better.