Re: [Biodiesel] Re: glycerine pretreatment poor separation

 

It's what I would do anyway. The goldenrod filters are water separators and do the trick for glycerin as well. There's no extra work on my part and my yields are as close to 100% as anyones. Any biodiesel that is removed with the glycerin gets tossed back in the next batch and recovered.

From: "lotus3390@aol.com" <lotus3390@aol.com>
To: Biodiesel@yahoogroups.com
Sent: Wednesday, August 17, 2011 10:51 PM
Subject: Re: [Biodiesel] Re: glycerine pretreatment poor separation

 

Yes indeed... lots more work and time with less biodiesel in the end.  Why do you do this?  I don't see how you can use a filter to separate the glycerin.  I've run glycerin thru a 1 micron filter just to see what would happen and almost all of it went right thru the filter.

Eric Krupp, Michigan

 

In a message dated 8/17/2011 8:32:21 P.M. Eastern Daylight Time, harveyking@hotmail.com writes:

Seems like the hard way to go.

Dick

--- In Biodiesel@yahoogroups.com, Barry Latham <barrylatham@...> wrote:
>
> It's not really a five stage process, it's just multiple settlings that are natural to the two-stage process that a lot of people use.
>  
> 1. 90% of MeOH/KOH used, settled
> 2. Remaining 10% used, settled
> 3. Biodiesel stored for 2+ weeks in a HHO tank. The bottom 20 gallons is not pumped out for use.
> 4. Biodiesel pumped into cone bottom 'delivery tank' for use within 24 hours. The bottom gallon is drained into a glycerin/biodiesel settling tank before use.
> 5. When pumping from the reactor to the HHO tank and HHO-delivery tank, I use golden rod filters to separate out glycerin.
>  
> Barry
>
> From: "lotus3390@..." <lotus3390@...>
> To: Biodiesel@yahoogroups.com
> Sent: Tuesday, August 16, 2011 11:09 PM
> Subject: Re: [Biodiesel] Re: glycerine pretreatment poor separation
>
>
>  
>
> Barry,
> I've not heard of a 5 stage process... how does that work?
> Eric Krupp, Michigan
>
> In a message dated 8/15/2011 12:24:27 P.M. Eastern Daylight Time,
> barrylatham@... writes:
> I have been using 16% MeOH for years now and get good separation, but my process naturally has 5 different stages where glycerin separation takes place without me haveing to do any extra work or add extra time.
> > 
> >No matter what, the reaction needs at least 13% MeOH, but more is always better. Of course, with more MeOH, you are adding to your energy costs to distill it back out of the glycerin. I distill 40 gallons of MeOH/glycerin at a time and usually recover 5 gallons of beuatiful MeOH. It costs me $3/gallon to buy MeOH and the electrical costs for 24 hours of distillation mean that I pay $1/gallon for recovered MeOH.
> >
> >Barry
> >Chicago, IL
> >
>

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