Re: [Biofuel] Trying to produce biodiesel in laboratory scale

Andres, Doesn´t the water poison the catalyst and give you saponification reactions? From: Andres Secco [mailto:[EMAIL PROTECTED]To: Biofuel@sustainablelists.orgSent: Thu, 16 Feb 2006 00:37:16 -0300Subject: Re: [Biofuel] Trying to produce biodiesel in laboratory scale Dear Duarte, The basic

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

: Re: [Biofuel] Trying to produce biodiesel in laboratory scale Andres, Doesn´t the water poison the catalyst and give you saponification reactions? From: Andres Secco [mailto:[EMAIL PROTECTED]To: Biofuel@sustainablelists.orgSent: Thu, 16 Feb 2006 00:37:16 -0300Subject

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

Mahoney To: Biofuel@sustainablelists.org Sent: Wednesday, February 15, 2006 10:38 PM Subject: Re: [Biofuel] Trying to produce biodiesel in laboratory scale One thing I've never seen mentioned is using sodium methoxide from a company such as BASF. I am using it in lab

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

: Thursday, February 16, 2006 4:54 AM Subject: Re: [Biofuel] Trying to produce biodiesel in laboratory scale Andres, Doesn´t the water poison the catalyst and give you saponification reactions? From: Andres Secco [mailto:[EMAIL PROTECTED]To: Biofuel

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

] *To:* Biofuel@sustainablelists.org mailto:Biofuel@sustainablelists.org *Sent:* Thu, 16 Feb 2006 00:37:16 -0300 *Subject:* Re: [Biofuel] Trying to produce biodiesel in laboratory scale Dear Duarte, The basic reaction you are doing

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

:[EMAIL PROTECTED] *To:* Biofuel@sustainablelists.org mailto:Biofuel@sustainablelists.org *Sent:* Thursday, February 16, 2006 4:54 AM *Subject:* Re: [Biofuel] Trying to produce biodiesel in laboratory scale Andres, Doesn´t the water poison the catalyst and give

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

to produce biodiesel in laboratory scale One thing I've never seen mentioned is using sodium methoxide from a company such as BASF. I am using it in lab work and find it very convenient. It is water-free and about 25% in methanol. Take a look at this web page http://www.basf.com

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

@sustainablelists.org *Sent:* Thursday, February 16, 2006 4:54 AM *Subject:* Re: [Biofuel] Trying to produce biodiesel in laboratory scale Andres, Doesn´t the water poison the catalyst and give you saponification reactions

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

1) Start by compensating with an equal amount of dissolved NaOH for the undissolved solids you're removing. You can't call them part of the 3.5 requisite grams, take them out of the equation and then expect everything to work perfectly as if no subtraction was done. 2) Titrate the oil.

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

How did you utilize the liebig condensor? Wouldnt that condense the gas given off by the reaction into a liquid? Is that the jist of it? Turning it into a less volitile liquid instead of a gas? On 2/15/06, Duarte Nuno Januário [EMAIL PROTECTED] wrote: Hi all! I've been trying (made 5 batches)

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

YupHe's basically refluxing it, I assume, with the liebig condenser vertically attached to the reaction vessel. A closed container would do the same thing!A good use for the liebig condenser would be to reclaim the excess methanol from the glycerine, but they are usually pretty small, so would

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

A while back I tried to shake up the methoxide and oil in a closed container (due to lack of glass blender or lab stirrer), and much like a shaken soda bottle it expanded a bit and fizzed out a bit. I am looking for a better test setup that can prevent this type of thing. Would stirring the

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

A while back I tried to shake up the methoxide and oil in a closed container (due to lack of glass blender or lab stirrer), and much like a shaken soda bottle it expanded a bit and fizzed out a bit. I am looking for a better test setup that can prevent this type of thing. Would stirring the

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

Hello Dennis Don't you mean sodium methylate? Best Keith One thing I've never seen mentioned is using sodium methoxide from a company such as BASF. I am using it in lab work and find it very convenient. It is water-free and about 25% in methanol. Take a look at this web page

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

Hi Duarte I do get a clear phase separation after 24 hours, but my biodiesel isn’t crystal clear. It really doesn't matter much, or it doesn't matter at all. See, eg.: Allow to settle for 12-24 hours. Darker-coloured glycerine by-product will collect in a distinct layer at the bottom of the

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

One thing I've never seen mentioned is using sodium methoxide from a company such as BASF. I am using it in lab work and find it very convenient. It is water-free and about 25% in methanol. Take a look at this web page http://www.basf.com/businesses/chemicals/alcoholates/biodiesel/index.html

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

Dear Duarte, The basic reaction you are doing is a nucleophilic reaction were the methoxide replaces the glycerine in the fatty acid. So you get free methylstearates (if the oil have stearic acid). This substances called methyl-Stearates or Linoleates arethe Biodiesel. Now, I have some

Re: [Biofuel] Trying to produce biodiesel in laboratory scale

Hi, I am trying to construct a similar setup. How do you actually use the Liebig condensor to pickup the methanol gas? I have never used that piece of equipment before. Do you have a picture of the setup or diagram you can send me? Thanks! - JaredOn 2/15/06, Duarte Nuno Januário [EMAIL