Bokakob 2" mini-still column

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Re: Bokakob 2" mini-still column

Postby jake22si » Sun Jan 18, 2015 12:04 pm

I got it figured out, thanks
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Re:

Postby Elrospo » Mon Apr 03, 2017 10:03 pm

Pikluk wrote:made a short column and condenser for striping, will also try them as a pot still in the near future.

2" copper pipe with 2" treaded female copper fitting for the column.

1/2" copper pipe
2x 1/2" copper end cap
3/8 copper pipe
1/4" copper pipe

drilled 1/4" hole on the end caps and 3/8" holes on the 1/2" pipe.
was easy to make took me like 15min.

shortcolunmandliebig.jpg



I wanted to ask a "thing" in this type of distillation column comes from the already liquid product,
It comes out hot but liquid product, right ?,
and it flows into the copper pipe to go towards the container hydrometer, and you still will cool more, right?
then the condenser on 'liquid outlet and necessary?
and why?
and that brings benefits?
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Re: Bokakob 2" mini-still column

Postby der wo » Tue Apr 04, 2017 12:07 am

It's up to you if you cool the product down further. It's not necessary. But without cooling a bit will evaporate, and the alcoholmeter will not give a good measurement, becaus it is calibrated to a certain temp like 20°C for example.

The longer the tube after the valve, the more it cools by itself. But something like a room tempproduct you only get with for example a liebig condenser instead of the tube.
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Re: Bokakob 2" mini-still column

Postby Elrospo » Tue Apr 04, 2017 4:25 am

ok,
tanks
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Re: Bokakob 2" mini-still column

Postby cdd » Tue Feb 27, 2018 1:18 pm

whats the optimum column length for bokabob with 2kw boiler and 54mm tube?
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Re: Bokakob 2" mini-still column

Postby zapata » Tue Feb 27, 2018 1:59 pm

There is no blanket optimum. A foot might do for some wanting higher proof flavored spirits. 4-5 feet if you want the truest of neutrals (in that case probably drop your power down to about 1800 watts too).
Also depends on packing, e.g. spp can use much shorter columns for the same result.
So what's your packing, and what's your goal?
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Re: Bokakob 2" mini-still column

Postby cdd » Wed Feb 28, 2018 1:20 am

I will build a minimum size column first and then tri-clamp it taller.
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Re: Bokakob 2" mini-still column

Postby Yummyrum » Wed Feb 28, 2018 1:41 am

Stripping your wash in a pot still first will result n a significantly better result as far as purity goes if a clean product is what you are after . You can strip the hell out of your wash really fast if you have a lot of power available ( gas burners are great for this ) and it will save you hours of drip drip drip that you would need to do to get the same purity from refluxing straight wash . :D

I run stripped wash at around 30% abv though 1 meter ( 3 1/2foot ) of 2" ( OD not ID Aussie copper so slightly smaller than yours ) on 2.2kW and that will give me nice clean 95%+ at over 1.2 liters an hour .
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Re: Bokakob 2" mini-still column

Postby cdd » Thu Mar 01, 2018 8:30 am

has anyone used a shotgun condenser for reflux instead of graham?
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Re: Bokakob 2" mini-still column

Postby pfshine » Thu Mar 01, 2018 8:39 am

Yes. There is a few threads about that around here. That being said there really is no reason to do it. The coil is easy to build and more efficient for this imo.
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Re: Bokakob 2" mini-still column

Postby Pikey » Thu Mar 01, 2018 12:27 pm

cdd wrote:has anyone used a shotgun condenser for reflux instead of graham?


Sorry to be pedantic but that is a "Coil condenser" or if there is a twin spiral a "Dimroth" (coolant flows through coil - with a Graham, the distillate goes through the coil)
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