SV: Spirit Stills and Reboilers?

[Åke Johansson]

Hi again Brian,

But mustn´t there have been some sort of condenser after the first
destillation or there wouldn´t be any second distillation as the vessel for
that would be fed with vapours? Or was the second still designed as a
continuous still with the alcohol fumes from first distillation entering at
the bottom, a system of trays and reflux controlled by something colder
entering higher up?
But why bother with a pot still for first run if you in fact have a
continuous still afterwards in the line? 

Åke

-----Ursprungligt meddelande-----
Från: MALTS-L at RZ.UNI-KARLSRUHE.DE [mailto:MALTS-L at RZ.UNI-KARLSRUHE.DE] För
Fredrika Gross
Skickat: den 3 augusti 2006 08:49
Till: MALTS-L at LISTS.UNI-KARLSRUHE.DE
Ämne: Re: Spirit Stills and Reboilers?

Hi Åke,

Unfortunately that's not what I observed.

I'm pretty sure the output of the first distillation went directly to the
second distillation (reboiler or alembic still) and from there directly to
the condenser.

Brian

-----Original Message-----
From: MALTS-L at RZ.UNI-KARLSRUHE.DE [mailto:MALTS-L at RZ.UNI-KARLSRUHE.DE] On
Behalf Of Åke Johansson
Sent: Wednesday, August 02, 2006 4:05 PM
To: MALTS-L at LISTS.UNI-KARLSRUHE.DE
Subject: Re: Spirit Stills and Reboilers?

Hi Brian

My guess: The amount of energy involved in the first step is, due to larger
volume, larger than what is demanded for the second distillation. Entropy
may be a problem so good heat exchanging must be essential. Speculation:
Additional energy may be brought in by operating the condenser to achieve
slight vacuum.
Would the description at http://lorien.ncl.ac.uk/ming/distil/distileqp.htm
be similar to anything you observed?

Åke

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