SV: Spirit Stills and Reboilers?

[Åke Johansson]

Of course you are right there about where distillation takes place. There is
part of the separation process happening there otherwise the pot would have
been empty when the run is finished. What I meant, though badly expressed,
was that differentiating it from the continuous still, a batch operation
demands a proportionally larger vessel to accommodate the fluid to be
distilled to its full volume as nothing is fed during operation.

Åke

-----Ursprungligt meddelande-----
Från: MALTS-L at RZ.UNI-KARLSRUHE.DE [mailto:MALTS-L at RZ.UNI-KARLSRUHE.DE] För
Kraaijeveld A.R.
Skickat: den 3 augusti 2006 16:17
Till: MALTS-L at LISTS.UNI-KARLSRUHE.DE
Ämne: Re: Spirit Stills and Reboilers?

That gets us into an almost metaphysical discussion as to where exactly the
distillation takes place, i.e. where (in pot or column) alcohol molecules
are separated from water molecules. My feeling is in both, in which case the
pot does more than simply hold the volume of liquid.


Cheers, Lex




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fly, you greatest fool
Why can't you say what they want you to
Why can't you do what they taught you
And show what they wanted of you      
       
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Dr Alex R Kraaijeveld
School of Biological Sciences
University of Southampton
Bassett Crescent East
Southampton
SO16 7PX
tel: (+44)-(0)23-80593436
fax: (+44)-(0)23-80594459
http://www.sbs.soton.ac.uk/staff/ark/ark.php

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-----Original Message-----
From: MALTS-L at RZ.UNI-KARLSRUHE.DE [mailto:MALTS-L at RZ.UNI-KARLSRUHE.DE] On
Behalf Of Åke Johansson
Sent: 03 August 2006 15:08
To: MALTS-L at LISTS.UNI-KARLSRUHE.DE
Subject: SV: Spirit Stills and Reboilers?

Could it be that it just is simpler and cheaper to operate the column
batch-wise than in a continuous process and the pot has to be there only to
house the necessary volume?

Åke

-----Ursprungligt meddelande-----
Från: MALTS-L at RZ.UNI-KARLSRUHE.DE [mailto:MALTS-L at RZ.UNI-KARLSRUHE.DE] För
Kraaijeveld A.R.
Skickat: den 3 augusti 2006 15:57
Till: MALTS-L at LISTS.UNI-KARLSRUHE.DE
Ämne: Re: Spirit Stills and Reboilers?

>But why bother with a pot still for first run if you in fact have a
>continuous still afterwards in the line? 

But isn't that what happens in Holstein stills, which are essentially
pots with a column on top? AFAIK, most whisk(e)y distillers using
Holstein-type stills only have one distillation run


Cheers Lex

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