Talk:Vacuum distillation

Still no sources
still no sources for over 6 months now? why not delete this until something reliable comes along? Knifle 10:54, 3 January 2007 (UTC)

Major re-write
I have just re-written this article by:

Credit is due to Karl Kolmetz and Andrew Stoley for their referenced publication on industrial-scale vacuum distillation.
 * Re-formatting, re-locating and re-naming some sections and creating new sections.
 * Revising existing references to format and creating new "References" section.
 * Adding some additional references.
 * Removing tag about needing more references because the article is fairly well referenced now.

It would be very useful to include a photo of an industrial-scale vacuum distillation column. Does anyone have such a photo that could be uploaded into Wikipedia? Regards to all, - mbeychok 16:54, 27 September 2007 (UTC)

The lead picture is not really representative of a vacuum distillation in a lab, I much prefer the schematic one at the bottom of the page. —Preceding unsigned comment added by 147.188.104.180 (talk) 16:20, 17 December 2008 (UTC)

Dealcoholization
Dealcoholization merits mention, e. g..

Other language
The dutch version of this page links to thisone, but not backwards. also the dutch page links to another japanese page than thisone. i am not able enough to help this. — Preceding unsigned comment added by 84.80.132.76 (talk) 00:30, 5 November 2012 (UTC)

Figure 2
I've uploaded a new version of figure 2. I think that the previous one was a little too "messy", especially for people who don't know much about the subject. In the new one I tried to highlight the different phases during the vacuum distillation process. --Luca bonfanti (talk) 15:13, 1 December 2014 (UTC)

Semi-protected for 1 week
This article is set to require logged in editor status in order to edit it for the next week due to an edit war having broken out. The talk page is fully editable by anyone and I sincerely hope what appear to be "both" sides (more than 1 editor in each camp, it appears) will use that rather than continue to push the article content back and forth. You're supposed to stop fighting and talk about it on user talk or article talk pages. Please do that. Thank you. Georgewilliamherbert (talk) 07:59, 14 May 2019 (UTC)
 * See WP:AN Andy Dingley (talk) 09:49, 14 May 2019 (UTC)

Vacuum for higher efficiency
Under "Large-scale water purification" its says:
 * The heat removed from the water vapor is removed by a heat sink and passed into the incoming ocean water to preheat it. This reduces the energy requirement and allows for much higher efficiency due to the reduced requirement for heat and fuel usage.

While it does reduce the energy requirement, it only increases the efficiency a bit. It takes 2.26 MJ/kg to evaporate water, but only 0.42 MJ/kg to heat it all the way from 0 °C to 100 °C. So the process would be: at 1 atm 2.26 MJ/kg + 100 K * 4180 J/(kg*K) = 2.68 MJ/kg at 0.02 atm 2.26 MJ/kg + 20 K * 4180 J/(kg*K) = 2.34 MJ/kg, which would be 13% lower energy

But they all use heat exchangers anyway, resulting in pretty much no difference regardless of pressure. Thus I will rephrase this. — Preceding unsigned comment added by Eheran (talk • contribs) 12:08, 3 December 2021 (UTC)