Re: [Biofuel] Questions about ethanol

2005-05-09 Thread Pieter Koole

Thank you.
No, I don't mean methanol. I mean ethanol, fermented out of the sugars from
cellulose is build up.
When you break cellulose, you get sugars as far as I understand.
Tomorrow I have some more time to write down the details so far.

Met  dank en vriendelijke groet,
Pieter Koole
Netherlands

- Original Message -
From: Dean Thomas [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Sunday, May 08, 2005 3:01 PM
Subject: Re: [Biofuel] Questions about ethanol


 Hi Pieter,

 Sorry I could be mistaken there is always something new to learn but do
 you mean methanol instead of ethanol. Methanol is otherwise known as
 wood alcohol and a small amount is formed during on the grain
 fermentation during the making of alcohol (Ethanol) beverages the Grain
 husks being the wood part. Not noing any better or of it is even
 possible I would imagine that the only alcohol able to be formed from
 sawdust could be methanol.
 To make ethanol you ferment sugars.
 To work out the Ethanol content of ethanol/water mix, at any local
 home-brew shop you can purchase hydrometers. Beer/wine hydrometers are
 good up to 20% Spirit hydrometers are good up to 100% about the best you
 can hope for at home is 95-96%.

 Dean.

 Pieter Koole wrote:

 Hi all,
 I would like to give it another try to make ethanol from sawdust or other
 cellulose materials.
 In the past I have tried Sawdust ethanol production which I read
somewhere
 I think on JTF, but didn't succeed.
 Well, IF I succeed this time, how can I now the % of ethanol and water ?
 I have zeolite, so I should be able to dry the ethanol. Can I measure the
 gravity to be sure enough I have 100% ethanol ?
 Would zeolite also adsorbe the alcohol ? If yes, what to do ? Drying the
 zeolite would cause loss of ethanol.or ??
 Any advice on making ethanol from sawdust or newspapers would be very
 welcome.
 
 Another - maybe stupid - question :
 Sometimes I read snip in the messages. What does that mean ?
 
 Met  dank en vriendelijke groet,
 Pieter Koole
 Netherlands
 
 
 
 
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Re: [Biofuel] Questions about ethanol

2005-05-09 Thread Michael Redler

Whoa!
 
...Mike

Chris [EMAIL PROTECTED] wrote:
I assume this is for US only shipping:

http://www.dangerouslaboratories.org/

 OK, Since we're on the subject, I've been wondering where I can purchase 
 the H2SO4 necessary for this process. Can anyone give me some direction?

Chris K
Cayce, SC 
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Re: [Biofuel] Clean Energy Show London

2005-05-09 Thread Jules Veres

ok  you can find uk energy show by giong on yahoo and search for london energy 
show! have fun boys!
  - Original Message - 
  From: Hakan Falkmailto:[EMAIL PROTECTED] 
  To: [EMAIL PROTECTED]mailto:[EMAIL PROTECTED] 
  Sent: Sunday, May 08, 2005 1:34 AM
  Subject: Re: [Biofuel] Clean Energy Show London



  Just a bit curious, since when and where did they start with highway tolls 
  in Sweden? Free city parking and special tax breaks, I did not read about 
  any revolutions in Sweden. LOL

  Hakan


  At 03:22 AM 5/8/2005, you wrote:
  Hi! I don't know if  anyone heard about this event in London.It should be 
  next week.One of the attractions is the Saab 95 Biopower.It 
  uses95%bioethanol and15% regular fuel.The engine can produce 180bhp.It 
  sold about a 1000 units in Sweden already.The owners get special 
  incentives fom the government :Free city parking,no highway tolls and 
  special tax breaks for company vehicles.Wonder whwre else they will sell 
  this one ?If anyone knows let me know please!!jules.


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[Biofuel] Hemp oil

2005-05-09 Thread JanWarnqvist

Hwllo everybody.
Does anybody know of a good average iodine number for hemp oil ?

AGERATEC AB
Jan Warnqvist
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Re: [Biofuel] Question about BD

2005-05-09 Thread ROY Washbish

Keith
Thank you for this.
Now I know just what is taking place.
No chemist here. LOL
Now the process makes more sense to me.
Now ... maybe ... I can understand it.
~BEST~
Roy

Keith Addison [EMAIL PROTECTED] wrote:
Hello all,
Maybe a silly question,

They say the only stupid question is the one you don't ask. Not sure 
about silly answers though ... But we aren't chemists and lots of 
other people also aren't chemists, so let's see what we can make of 
it and if it's silly maybe a kindly chemist will help us out.

but I cannot figure out how it works really.
As far as I understand, veg.oil exists out of a glycerol + 3 fatty acids,
like a head with 3 legs.

I think make it three heads with their arms linked.

During the BD proces, we break off the legs, using NaOH, and connect a
methanol molecule on each leg.

They break off one by one: triglycerides become di-glycerides (two 
legs) plus an alkyl ester (one leg), one molecule of glycerin drops 
out. Then the di-glycerides become mono-glycerides (one leg) plus 
another alkyl ester and another molecule of glycerin drops out. The 
mono-glycerides then become alkyl esters and a third molecule of 
glycerin drops out.

When we break off the legs, I would think we have free legs, so free fatty
acids.

This process above is transesterification, when one alcohol molecule 
(glycerine) in a fatty acid chain is replaced by another alcohol 
molecule (methanol). The process reaches equilibrium before 
completion and can then go into reverse, cutting the legs off alkyl 
esters so they turn into FFAs, which dissolve back into the 
biodiesel. You can't transesterify FFAs because there's no alcohol 
molecule left to replace. Esterification joins a new alcohol molecule 
onto an FFA, ie acid esterification, and base transesterification.

What mistakes do I make when I think this is how it works ?
So, if this is how it works (which is prob. not the case), why do we worry
about free fatty acids ?

See my reply to RE: [Biofuel] A nice experience:

The Fuel Injection Equipment (FIE) Manufacturers (Delphi, 
Stanadyne, Denso, Bosch) issued a statement on biodiesel. They 
strongly support it, but they have their concerns too, and they're 
very involved in standards development... These are their concerns:
* Free methanol
* Dissolved and free water
* Free glycerin
* Mono and di glycerides
* Free fatty acids
* Total solid impurity levels
* Alkaline metal compounds in solution
* Oxidation and thermal stability

... Free fatty acid
Effect: Provides an electrolyte and hastens the corrosion of zinc, 
Salts of organic acids, Organic compounds formed
Failure Mode: Corrosion of fuel injection equipment, Filter 
plugging, Sediments on parts

http://journeytoforever.org/biodiesel_FIEM.html
FIEM report

And so on.

For instance.

I would say that we only would need less lye,
because the legs are already lose.

They need heads, and then it should be the right kind of head. 
Triglycerides (SVO) and monoalkyl esters (biodiesel) are good diesel 
fuels, anything in between isn't - di-glycerides, mono-glycerides, 
FFAs, along with any remaining glycerine, as well as any excess 
methanol. All the national standards regard them as contaminants.

So don't use less lye and don't use more lye, use the right amount 
to make good biodiesel. Good biodiesel is as pure as possible with a 
minimum of contaminants.

It doesn't really matter how you go about making it, we all have our 
different ways. You find out what works and what doesn't, and then 
you also find out what works for you and what doesn't. There are 
plenty of checks along the way to tell you if you're heading in the 
right direction or not. Especially when you wash it. Just as long as 
you end up with good biodiesel for your motor.

For SVO, the European standards don't include WVO, many people 
supplying or working with SVO systems say No WVO, and the FFA 
content is one reason for that. Elsewhere, some people making, 
selling or using SVO kits say there's no issue with WVO as long as 
it's clean and dry and you pre-heat it to lower the viscosity. The 
viscosity, again, is all that matters, they say. But they can't cite 
much research to prove it, and what few longer-term results they have 
are inconclusive, while there's a lot of research behind the European 
standards (much of it in German), and a lot of experience in Europe 
too. According to the research, good SVO fuel is also as pure as 
possible with a minimum of contaminants, including FFA.

I can't figure out how much FFA you've got in your biodiesel, but 
1,000 litres is a lot of fuel. Maybe it's not enough to do any harm, 
or maybe you could mix it with clean biodiesel to dilute it, or maybe 
use clean biodiesel in alternate tankfuls.

Best wishes

Keith


Met dank en vriendelijke groet,
Pieter Koole
Netherlands

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RE: [Biofuel] Clean Energy Show London

2005-05-09 Thread Craig Jamieson

Don't bother looking: the show's over! I went to it just before it finished on 
Saturday afternoon: it was just a small, free exhibition of trade stands. I 
guess the main event was the conference on Friday but I didn't fancy forking 
out ££hundreds to hear BMW et al banging on about hydrogen being the transport 
fuel of the future - grrr!

Craig.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Jules Veres
Sent: 09 May 2005 02:35
To: [EMAIL PROTECTED]
Subject: Re: [Biofuel] Clean Energy Show London


ok  you can find uk energy show by giong on yahoo and search for london energy 
show! have fun boys!
  - Original Message - 
  From: Hakan Falkmailto:[EMAIL PROTECTED] 
  To: [EMAIL PROTECTED]mailto:[EMAIL PROTECTED] 
  Sent: Sunday, May 08, 2005 1:34 AM
  Subject: Re: [Biofuel] Clean Energy Show London



  Just a bit curious, since when and where did they start with highway tolls 
  in Sweden? Free city parking and special tax breaks, I did not read about 
  any revolutions in Sweden. LOL

  Hakan


  At 03:22 AM 5/8/2005, you wrote:
  Hi! I don't know if  anyone heard about this event in London.It should be 
  next week.One of the attractions is the Saab 95 Biopower.It 
  uses95%bioethanol and15% regular fuel.The engine can produce 180bhp.It 
  sold about a 1000 units in Sweden already.The owners get special 
  incentives fom the government :Free city parking,no highway tolls and 
  special tax breaks for company vehicles.Wonder whwre else they will sell 
  this one ?If anyone knows let me know please!!jules.


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[Biofuel] methanol recovery

2005-05-09 Thread des


test batches, (1 litre), and lurking on this fine list, absorbing 
information, and reading a lot on the biodiesel pages.


I guess I've got a decent grip on the process and the chemistry 
involved, but I've had a question that I've not found the answer to yet. 

If I'm using 20% by volume of methanol to make my methoxide then run the 
transesterification, I understand that the methanol becomes part of the 
molecule chain, with some attaching to the glycerides, and some still 
floating free in the biodiesel which is washed out toward the end of the 
process.  So if I was to distill the glycerides and soap rinse water, 
about what percentage of the methanol that I put in is likely to still 
be recoverable with a distillery?  Assume that the recipe is the common 
NaOH/methanol, without the extra steps consisting of the sulfuric or 
phosphoric acid treatments...


I'd like to know about how much of my waste material is going to be 
recoverable, because as nature shows us, the concept of waste is 
man-made.  There is no waste in nature.


Thanks for your input, in advance.

doug swanson


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Re: [Biofuel] Hemp oil

2005-05-09 Thread bob allen



Iodine Value:   166.5

http://www.ganjaland.com/oil.htm



JanWarnqvist wrote:

Hwllo everybody.
Does anybody know of a good average iodine number for hemp oil ?

AGERATEC AB
Jan Warnqvist
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Re: [Biofuel] Question about BD

2005-05-09 Thread Keith Addison



Thank you for this.


You're welcome Roy, hope it helps - hope it's right! :-)

Regards

Keith



Now I know just what is taking place.
No chemist here. LOL
Now the process makes more sense to me.
Now ... maybe ... I can understand it.
~BEST~
Roy

Keith Addison [EMAIL PROTECTED] wrote:
Hello all,
Maybe a silly question,

They say the only stupid question is the one you don't ask. Not sure
about silly answers though ... But we aren't chemists and lots of
other people also aren't chemists, so let's see what we can make of
it and if it's silly maybe a kindly chemist will help us out.



snip

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Re: [Biofuel] methanol recovery

2005-05-09 Thread Chris Bennett



I've been preparing my processing system, done a little in the way of 
test batches, (1 litre), and lurking on this fine list, absorbing 
information, and reading a lot on the biodiesel pages.


I guess I've got a decent grip on the process and the chemistry 
involved, but I've had a question that I've not found the answer to yet.
If I'm using 20% by volume of methanol to make my methoxide then run 
the transesterification, I understand that the methanol becomes part 
of the molecule chain, with some attaching to the glycerides, and some 
still floating free in the biodiesel which is washed out toward the 
end of the process.  So if I was to distill the glycerides and soap 
rinse water, about what percentage of the methanol that I put in is 
likely to still be recoverable with a distillery?  Assume that the 
recipe is the common NaOH/methanol, without the extra steps consisting 
of the sulfuric or phosphoric acid treatments...


I'd like to know about how much of my waste material is going to be 
recoverable, because as nature shows us, the concept of waste is 
man-made.  There is no waste in nature.


Thanks for your input, in advance.

doug swanson


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I have just fitted a condenser to my processor. I use the 2 stage 
base/base process and add 20 litres of methanol to each 80 litre batch 
of wvo. I add the byproduct removed after the first stage after the 
second stage is finished and then boil off the methanol. I am recovering 
about 6 litres of methanol out of each batch.

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RE: [Biofuel] Hemp oil

2005-05-09 Thread Steve Hess

I have a question that I have been debating with a biology teacher.  Is
Hemp illegal to grow in the US.  If it is not, where is it grown and
what are the exceptions to being allowed to grow it.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of bob allen
Sent: Monday, May 09, 2005 11:23 AM
To: [EMAIL PROTECTED]
Subject: Re: [Biofuel] Hemp oil


I won't vouch for the accuracy, but the numbers don't seem unreasonable

Iodine Value:   166.5

http://www.ganjaland.com/oil.htm



JanWarnqvist wrote:
 Hwllo everybody.
 Does anybody know of a good average iodine number for hemp oil ?
 
 AGERATEC AB
 Jan Warnqvist
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[Biofuel] Cellulose to Ethanol

2005-05-09 Thread MH

 The Carbohydrate Economy Newsletter
 Summer 2002
 By David Morris
 http://www.carbohydrateeconomy.org 

 Cellulose to Ethanol: A Progress Report

 Making ethanol in large quantities from
 lignocellulosic crops is, for many, the
 equivalent of finding the Holy Grail. After all,
 lignin, hemicellulose and cellulose are the
 basic structural materials of plants. Hundreds of
 millions of tons are contained in everything from
 wood to grasses to straw to organic wastes.
 Lignocellulosic feedstocks are cheaper than
 starch crops. 

 In the late 1990s, the emergence of a
 commercial process to produce ethanol from
 these feedstocks appeared imminent. Several
 companies publicly announced they'd begin
 producing commercial quantities by 2000.
 One company held a widely publicized
 groundbreaking in 1999.

 Yet midway through 2002, no commercial
 cellulose-to-ethanol plant is operating.
 What are the realistic prospects in the
 near future?

 First, some background information.
 The easiest way to make ethanol (alcohol) is to
 ferment it from simple sugars. Industrial ethanol
 used to be made from molasses. In Brazil it is
 made from sugar cane (sucrose).
 The second easiest way, and the one used to
 produce the vast majority of ethanol in the
 United States, is from starch crops, like
 corn. Starch consists of glucose molecules
 strung together. Thus one must break down the
 starch into glucose, an easy process using water.
 Sugars are also locked up in lignocellulosic
 materials but they are much harder to access
 and some of the sugars are harder to ferment
 using current microbes. 

 The word 'lignocellulosic' describes the
 three material components of the cell walls
 of plants: lignin, hemicellulose, cellulose.
 The proportions can vary significantly. For
 agricultural residue like straw or stover the
 breakdown is approximately:

 35% cellulose;
 35% hemicellulose;
 15% lignin;
 15% other. 

 Lignin is the portion of plants that is the
 ancestor of coal. It is a complex substance that
 supplies a good deal of the structural strength
 to the plant. It has relatively few current uses.
 When making paper, lignin is removed from
 the wood using strong acids. Lignin is not
 converted into sugars. 

 Hemicellulose is a substance with many
 branches. It cross links with the lignin to create
 a complex web of bonds. Hemicellulose is
 comprised primarily of sugars that have five
 carbon (C5) atoms (e.g. xylose, arabinose).
 When treated with dilute sulfuric acid,
 hemicellulose readily reacts with water
 (hydrolysis) to produce these sugars.
 Currently C5 sugars are not converted into
 ethanol. Finding microbes that can do so
 is a very high priority for companies and
 may be the key to making ethanol from
 lignocellulosic materials competitive with
 ethanol from starch crops. 

 Cellulose, the third component of cell walls,
 consists of a long chain of glucose molecules.
 A concentrated sulfuric acid often is used
 to access cellulose's sugars. Microbes are
 readily available to convert these sugars
 into ethanol. Ethanol was first made from
 cellulose wood pulp during World Wars I and II
 using a dilute acid hydrolysis process. But
 the starch-to-ethanol process has proven
 more competitive. 

 Lignocellulosic feedstocks are cheaper than
 starch or sugar feedstocks: $30-35 per ton
 versus some $80 per ton for crops such as
 corn. But lignocellulose-to-ethanol facilities
 are more capital intensive than starch-to-ethanol
 facilities. Moreover, corn based ethanol facilities
 produce valuable byproducts (e.g. high protein
 animal feed) worth, on average, about $38 a ton,
 thereby reducing the cost of ethanol. The only
 current large-market for the byproduct of
 lignocellulose-to-ethanol manufacturing
 (lignin and hemicellulose) is as a low
 value fuel to generate steam or electricity.

 Several technologies are competing in the
 lignocellulose-to-ethanol area. The first
 out of the gate uses concentrated or dilute
 sulfuric acid to break down the cellulose and
 hemicellulose into sugars. This process is
 called acid hydrolysis. The economics of
 acid hydrolysis improve when cellulosic
 materials are available at a very low cost.
 The Masada Resource Group plans to build a
 waste-cellulose-to-ethanol facility in
 Middletown, New York. The 'tip fee' or
 fee paid to Masada for garbage unloaded at its
 facility may be as much as $75 per ton. The
 revenue from the tip fee plus the additional
 revenue from sale of recycled materials in the
 front end of the facility offsets its higher
 capital cost. Because it is a high temperature,
 high pressure process that relies on strong acids,
 it requires a significant capital investment,
 raising its cost. According to the National
 Renewable Energy Laboratory (NREL) the
 acid hydrolysis process currently costs
 $1.20-1.30 per gallon of ethanol produced
 and only modest cost reductions
 are predicted. 

 The second technology entrepreneurs are
 betting on uses biological 

Re: [Biofuel] Question about BD

2005-05-09 Thread bob allen



one minor correction.  The stoichiometry of the reaction is one lipid 
molecule plus three molecules of methanol afford three fatty acid methyl 
esters plus one glycerin molecule, not three as implied. Glycerin has 
three connection points for the fatty acid chains.



 1 triglyceride +  3 MeOH   ---  3 FAME + 1 glycerin


Keith Addison wrote:

Hello all,
Maybe a silly question,



They say the only stupid question is the one you don't ask. Not sure 
about silly answers though ... But we aren't chemists and lots of other 
people also aren't chemists, so let's see what we can make of it and if 
it's silly maybe a kindly chemist will help us out.



but I cannot figure out how it works really.
As far as I understand, veg.oil exists out of a glycerol + 3 fatty acids,
like a head with 3 legs.



I think make it three heads with their arms linked.


During the BD proces, we break off the legs, using NaOH, and connect a
methanol molecule on each leg.



They break off one by one: triglycerides become di-glycerides (two legs) 
plus an alkyl ester (one leg), one molecule of glycerin drops out. Then 
the di-glycerides become mono-glycerides (one leg) plus another alkyl 
ester and another molecule of glycerin drops out. The mono-glycerides 
then become alkyl esters and a third molecule of glycerin drops out.






--
Bob Allen
http://ozarker.org/bob

Science is what we have learned about how to keep
from fooling ourselves  Richard Feynman
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RE: [Biofuel] Hemp oil

2005-05-09 Thread Michael Redler

Steve,
 
I was researching hemp as a topic for an ASME presentation a couple of years 
ago because natural fibers from hemp and other plants are being used in place 
of fiberglass as an engineering material.
 
To my knowledge, hemp cannot be grown or imported into the United States. It 
puts us at a huge disadvantage because of the thousands of uses for the plant, 
its seeds and oils. You might remember Ralph Nader criticizing the government 
for its ban on hemp that does more harm than good.
 
Germany has a flourishing hemp industry because a mandate from the German 
government requires that cars become increasingly friendly to the environment, 
not just with emissions, but with recycling as well. The next time you take a 
ride in a new Volkswagen, look at the interior. It will be a natural fiber 
composite made from hemp.
 
One of the leading experts on hemp in Canada is Geoff Kime. Any Google search 
that includes his name will probably yield some useful information.
 
Mike
 
Steve Hess [EMAIL PROTECTED] wrote:
I have a question that I have been debating with a biology teacher. Is
Hemp illegal to grow in the US. If it is not, where is it grown and
what are the exceptions to being allowed to grow it.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of bob allen
Sent: Monday, May 09, 2005 11:23 AM
To: [EMAIL PROTECTED]
Subject: Re: [Biofuel] Hemp oil


I won't vouch for the accuracy, but the numbers don't seem unreasonable

Iodine Value: 166.5

http://www.ganjaland.com/oil.htm



JanWarnqvist wrote:
 Hwllo everybody.
 Does anybody know of a good average iodine number for hemp oil ?
 
 AGERATEC AB
 Jan Warnqvist
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-- 
Bob Allen
http://ozarker.org/bob

Science is what we have learned about how to keep
from fooling ourselves - Richard Feynman
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Re: [Biofuel] Hemp oil

2005-05-09 Thread Greg Harbican

5 to 20 years with time off for good behavior?;-)

Greg H.

- Original Message - 
From: JanWarnqvist [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, May 09, 2005 01:28
Subject: [Biofuel] Hemp oil


Hwllo everybody.
Does anybody know of a good average iodine number for hemp oil ?

AGERATEC AB
Jan Warnqvist
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