Search found 781 matches

by manu de hanoi
Thu Jan 28, 2021 7:51 am
Forum: Research and Theory
Topic: Reactive Distilling Techniques
Replies: 23
Views: 2197

Re: Reactive Distilling Techniques

Manu there is no dephlagmator and the upwards pressure is limited to the pressure created by the height of the water in the water trap so I don't have a "normal" bleeding of heads. This is the beer column you understand, not sure if I'll build a second (rectifyer?) column yet. I'm really trying to ...
by manu de hanoi
Thu Jan 28, 2021 12:25 am
Forum: Research and Theory
Topic: Reactive Distilling Techniques
Replies: 23
Views: 2197

Re: Reactive Distilling Techniques

I've been looking around to see how flavour companies generate these esters for food use if not through resin. Nothing yet. I wonder about instead adding a pool of H2SO4 in the reflux area instead of resin. The boiling temp is above 300c. I'm coming at the continuous operation in a non traditional ...
by manu de hanoi
Thu Jan 21, 2021 11:42 pm
Forum: Research and Theory
Topic: Reactive Distilling Techniques
Replies: 23
Views: 2197

Re: Reactive Distilling Techniques

I have integrated into my continuous still a port for putting mesh cartridges of Amberlyst in the vapor path. I've also obtained lab samples of the ten major carboxylic acids and the ten higher alcohols. This will let me dope the vapour path on the fly for custom esterification. I haven't bought th...
by manu de hanoi
Mon Jan 04, 2021 8:47 pm
Forum: Continuous Stripping stills
Topic: Continuous stripper power calculations
Replies: 14
Views: 2502

Re: Continuous stripper power calculations

I got a request for the file because my links are dead, here's the file, it's probably full of errors, so don't trust it. I unfortunately havent had the opportunity to dive back in seriously and clean it up.
continuous stripper calculations.xls
(22 KiB) Downloaded 24 times
by manu de hanoi
Fri Jan 01, 2021 11:56 pm
Forum: Research and Theory
Topic: Using a copper liner inside a SS column
Replies: 20
Views: 574

Re: Using a copper liner inside a SS column

Cut up a bunch of 3/8 copper tube into 1 or 2 inch lengths and spot solder them into a honeycomb pattern seems hard to do even if you have a spot welder. just thow your pieces of tube on top of packing I would just wrap a wire around the bundle and hit it with the oxyacetylene for a few seconds and...
by manu de hanoi
Fri Jan 01, 2021 2:55 am
Forum: Research and Theory
Topic: Using a copper liner inside a SS column
Replies: 20
Views: 574

Re: Using a copper liner inside a SS column

RC Al wrote:
Fri Jan 01, 2021 2:51 am
Cut up a bunch of 3/8 copper tube into 1 or 2 inch lengths and spot solder them into a honeycomb pattern
seems hard to do even if you have a spot welder. just thow your pieces of tube on top of packing
by manu de hanoi
Thu Dec 31, 2020 10:49 pm
Forum: Research and Theory
Topic: Using a copper liner inside a SS column
Replies: 20
Views: 574

Re: Using a copper liner inside a SS column

a spiral roll of copper sheet has more surface than a pipe or a simple lining. Put it on the top of the packing. 10cm roll height is enough for reflux columns.
by manu de hanoi
Thu Dec 31, 2020 10:00 pm
Forum: Condensers/Cooling Methods
Topic: Jackson Crossflow Condenser
Replies: 58
Views: 42245

Re: Jackson Crossflow Condenser

I'd be worried that non condensable gases be trapped on the non aerated end of the condenser thereby reducing the effective condenser area.
by manu de hanoi
Fri Nov 27, 2020 7:54 am
Forum: Essential Oils
Topic: Vacuum distillation...experiment results and silly question.
Replies: 6
Views: 1503

Re: Vacuum distillation...experiment results and silly question.

what was the volume of water and weight of skins/lemongrass ?
by manu de hanoi
Fri Oct 04, 2019 8:34 am
Forum: Research and Theory
Topic: ideas for breaking down an azeotrope
Replies: 18
Views: 2725

Re: ideas for breaking down an azeotrope

pope wrote:
Fri Oct 04, 2019 8:27 am
This is a very old thread but my brain is all about this topic today - what is the point of going from 96% to 100%? Remove any trace impurities trapped in the water?
fuel ethanol is the point
by manu de hanoi
Mon Sep 02, 2019 7:42 pm
Forum: What Not To Use/Do
Topic: Chinese stainless steel needle valves
Replies: 9
Views: 2826

Re: Chinese stainless steel needle valves

so far I'm satisfied with my dirt cheap chinese needle valves :
https://item.taobao.com/item.htm?spm=a2 ... t=8#detail
by manu de hanoi
Sun Sep 01, 2019 3:45 am
Forum: The Construction Site
Topic: Cutting glass - Hardened, Pyrex, Quartz and plain old glass
Replies: 35
Views: 3291

Re: Cutting glass - Hardened, Pyrex, Quartz and plain old glass

As far as I know hardened glass = tempered glass, except for some speciality "gorilla" glass for mobile phone. so I'm surprised anyone could cut "hardened" glass without it shattering (I've had my share of explosions). Btw u can tell tempered glass by putting it in from of LCD sceen (emits polarized...
by manu de hanoi
Thu Aug 29, 2019 10:53 am
Forum: Column Builds
Topic: What is the most "hands-off" design?
Replies: 19
Views: 2614

Re: What is the most "hands-off" design?

continuous stills are the most hands off especially for larger runs Yep. Running grain in solids however still means that an operator needs to be on hand,,,,so that he'll know when to run away :lolno: Running grain in solids ? I dont understand. Anyways it's important that the wash be well filtered...
by manu de hanoi
Thu Aug 29, 2019 4:49 am
Forum: The Construction Site
Topic: my vacuum still build
Replies: 22
Views: 3648

Re: my vacuum still build

I have been working on a vacuum setup, Its like learning to distill all over again. Great power savings can be achieved as you need less heat to boil ethanol with minute power to obtain vacuum. Its a work in progress, i have a working model but needs more work. I will post pics and updates as i wor...
by manu de hanoi
Thu Aug 29, 2019 4:42 am
Forum: The Construction Site
Topic: Everlasting gaskets compress, then leak
Replies: 18
Views: 1851

Re: Everlasting gaskets compress, then leak

The gasket looks white like PTFE, if the gasket is indeed PTFE then you should change it for silicone gasket (PTFE isnt elastic, it "creeps" ->leaks)
by manu de hanoi
Thu Aug 29, 2019 4:36 am
Forum: Column Builds
Topic: What is the most "hands-off" design?
Replies: 19
Views: 2614

Re: What is the most "hands-off" design?

continuous stills are the most hands off especially for larger runs
by manu de hanoi
Thu Aug 29, 2019 4:32 am
Forum: Column Builds
Topic: Otis’ Vacuum Still Build
Replies: 35
Views: 3973

Re: Otis’ Vacuum Still Build

TL;DR
In vacuum it's very hard to get fractionation, you should remove the reflux condenser
by manu de hanoi
Mon Aug 19, 2019 10:33 pm
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 2224

Re: Food dehydrator (and vacuum distiller)

here's a deep dry run on beef for the jerky lovers:
by manu de hanoi
Wed Aug 14, 2019 8:00 pm
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 2224

Re: Food dehydrator (and vacuum distiller)

Very interesting. My two-cents suggestions for improving. The part of the tube outside of the microwave should be made of food-grade "anaconda" tubing, such as those produced in Germany by Anamet https://www.amazon.it/dp/B075GK4C1D/?coliid=I1V422FAH32VOJ&colid=XYLCG4GPAVKM&psc=1&ref_=lv_ov_lig_dp_i...
by manu de hanoi
Wed Aug 14, 2019 11:11 am
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 2224

Re: Food dehydrator (and vacuum distiller)

microwaves penetrate differently than the hot air It's not the penetration that I was referring to, it's the off gassing of the water. The areas of the item to be dehydrated that are in contact with another surface won't off gas as evenly as the areas in the open. I'm not knowledgeable on the off g...
by manu de hanoi
Wed Aug 14, 2019 10:20 am
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 2224

Re: Food dehydrator (and vacuum distiller)

If you build your vacuum container to accept standard dehydrator trays it probably would make it able to hold more product at one time and have a more consistently dry end product. What you have so far looks really good regardless. microwaves penetrate differently than the hot air from dehydrators,...
by manu de hanoi
Wed Aug 14, 2019 9:43 am
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 2224

Re: Food dehydrator (and vacuum distiller)

I had a rather vigorous Q&A on reddit, but I clarified a lot there (and upvote if you can):
https://www.reddit.com/r/Ultralight/com ... ated_food/
and there
https://www.reddit.com/r/preppers/comme ... ated_food/
by manu de hanoi
Wed Aug 14, 2019 5:49 am
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 2224

Re: Food dehydrator (and vacuum distiller)

I ask them to prove or disprove their point of view, or present a constructive alternative
This is a prototype, changes can be made, criticism will help me build a better product.
by manu de hanoi
Wed Aug 14, 2019 4:49 am
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 2224

Re: Food dehydrator (and vacuum distiller)

What are your thoughts on the taste of your products compared to traditional methods? I cant really compare the tastes as I've never tried myself traditional methods. Drying in the saturated vietnamese atmosphere is tricky or impossible in some seasons. A friend had success fridge drying raw meat, ...
by manu de hanoi
Wed Aug 14, 2019 3:52 am
Forum: Other Hobbies and Projects
Topic: Food dehydrator (and vacuum distiller)
Replies: 13
Views: 2224

Food dehydrator (and vacuum distiller)

My latest invention, one year in the making, is finally ready to sell. It dries food at low temperature in any weather and in 3 hours or less. _S1kK1BQefg Comments are welcome (yes it can distill too) EDIT I had a rather vigorous Q&A on reddit, but I clarified a lot there (and upvote if you can): ht...
by manu de hanoi
Sat May 25, 2019 10:01 am
Forum: Craft Distillers
Topic: vacuum still for essential oil
Replies: 14
Views: 2398

Re: vacuum still for essential oil

Sunshineer wrote:What was your cost start to finish. And will you custom build one for me.
This one was sold 4000 USD + shipping (vacuum pump not included), the build took 2 months. All of the bigger stills I make are more or less customized.
by manu de hanoi
Wed May 15, 2019 10:22 am
Forum: Research and Theory
Topic: Double Column stills
Replies: 15
Views: 2156

Re: Double Column stills

Yes you are missing the fact that SPP works best in reflux stills made for Azeo type products , Vodka / Neutral type spirits. Plates are better for columns used to make flavoured brown spirits like Rum, Whisky and Brandy...............Two very different stills made for very different jobs. No, beca...
by manu de hanoi
Mon Feb 18, 2019 5:15 pm
Forum: Craft Distillers
Topic: vacuum still for essential oil
Replies: 14
Views: 2398

Re: vacuum still for essential oil

Thanks manu. That explains the multiple vacuum hose connects at different locations that I see on your smaller still. It’s hard to see all the plumbing on either of your rigs, simply because there is a lot going on there and only limited angles/pictures. A logical diagram would be wonderful to see,...
by manu de hanoi
Sun Feb 17, 2019 1:01 pm
Forum: Craft Distillers
Topic: vacuum still for essential oil
Replies: 14
Views: 2398

Re: vacuum still for essential oil

Hi manu. Do you simply run the still until the collection tank is full, then release vacuum to collect, or do you drain it part way through the run if/when it fills? the collection vessel is valved so that you can drain it part way and re vacuum it without having to re vacuum the whole still. If yo...
by manu de hanoi
Sun Feb 17, 2019 10:10 am
Forum: Craft Distillers
Topic: vacuum still for essential oil
Replies: 14
Views: 2398

Re: vacuum still for essential oil

Hi Manu,is the whole distiller in 3mm plate or just the boiler? Just the boiler I saw the movie, can you tell me more about how you handle the vacuum? I saw that the pump first acts up to the vacuum, then, after having activated the heater, when the first steam rises you restart the pump to recreat...