Re: [Biofuel] ethanol from cellulose

[doug swanson]

Kirk McLoren wrote:
> http://www.youtube.com/watch?v=XI5frPV58tY&feature=user
>
>   fuel bit is near the end
>
>   The termite proofing sounds great.
>
>   Kirk
That was one to forward to several associates!  One of whom works 
diligently to keep old growth forests from being sold to logging 
companies, and another who's been battling termites..  Thanks!

-- 
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[Biofuel] ethanol from cellulose

[Kirk McLoren]

http://www.youtube.com/watch?v=XI5frPV58tY&feature=user
   
  fuel bit is near the end
   
  The termite proofing sounds great.
   
  Kirk
-- next part --
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[Biofuel] Ethanol from cellulose, industrial

[dwoodard]

Some competition for Iogen.

Doug Woodard
St. Catharines, Ontario, Canada


-- Forwarded message --
From: EERE Network News <[EMAIL PROTECTED]>

A weekly newsletter from the U.S. Department of Energy's (DOE)
Office of Energy Efficiency and Renewable
Energy (EERE). The EERE Network News is also available on the Web at:
www.eere.energy.gov/news/

[extract]

April 20, 2005

Novozymes and NREL Cut Cost of Converting Biomass to Ethanol

Novozymes' new enzymes will be tested at the Abengoa Bioenergy pilot plant
in 2006.
Credit: Abengoa Bioenergy

Novozymes A/S announced last week that it has successfully achieved a
30-fold reduction in the cost of enzymes needed to convert biomass to
ethanol. Since early in 2001, Novozymes has been working with DOE's
National Renewable Energy Laboratory (NREL) to reduce the cost of producing
ethanol from cellulosic biomass, specifically the cobs, stalks, and leaves
of corn plants, which are collectively referred to as corn stover. As
opposed to starchy biomass sources such as corn kernels, such "woody"
sources require special pretreatments and enzymes to release their
carbohydrates and convert them into ethanol. The cost reduction was
achieved through a combination of an improved pre-treatment process
developed by NREL and new enzymes developed by Novozymes. Abengoa
Bioenergy䴊an ethanol producer operating in both Europe and the United
States䴊plans to test the improved process at its pilot plant in York,
Nebraska, in 2006. See the
Novozymes
press release and the
Abengoa Bioenergy Web site.

According to a recent study by the United Nations' Food and Agriculture
Organization (FAO), a short-term target of replacing up to 13 percent of
petroleum-based fuels with biofuels appears feasible in the United States
and Europe, using available cropland. And although some people worry that
converting crops to fuels can hurt world food supplies, the FAO finds that
producing energy from biomass could be a key to eliminating extreme poverty
and hunger throughout the world. The FAO notes that biomass energy projects
bring economic development opportunities to rural areas, creating jobs and
generating new sources of incomes for farmers. See the
FAO press release.

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RE: [biofuel] Ethanol from cellulose

[Hanns B. Wetzel]

Dear Marcelino Miranda,

I tried sending the document before, but the mail server spat it out again
saying it was too big for email transmission. The site is now hoever working
again and the document number is 3957.
The site's URL is
http://www.afdc.doe.gov/cgi-bin/doc_search/searchora.cgi
where you can search for it and then download it. You'll find a lot of other
interesting documents there.

Hanns

-Original Message-
From: Marcelino Miranda [mailto:[EMAIL PROTECTED]
Sent: Friday, 21 September 2001 10:25 AM
To: biofuel@yahoogroups.com
Subject: RE: [biofuel] Ethanol from cellulose


Message for Hanns B. Wetzel.
Can you please send me a copy of the full report?
This may be very useful for us in the forest of Jujuy, up North in
Argentina.
Thank you.
Marcelino Miranda

-Mensaje original-
De: Hanns B. Wetzel [mailto:[EMAIL PROTECTED]
Enviado el: Miercoles, 19 de Septiembre de 2001 11:21 a.m.
Para: biofuel@yahoogroups.com
Asunto: RE: [biofuel] Ethanol from cellulose


Todd,

An in-depth technical and economic analysis prepared for the U.S. DOE is a
pdf document titled "Lignocellulosic Biomass to
Ethanol Process Design and Economics Utilizing Co-Current Dilute Acid
Prehydrolysis and Enzymatic Hydrolysis Current and Futuristic Scenarios" (a
mouthful:-]) prepared by the National Renewable Energy Laboratory in July
1999. It is available via www.afdc.doe.gov/altfuels.htm but that site seems
to be off the air at present. I got a copy on disk (1992Kb), it is very
detailed. Will send you a copy if you like.

Hanns

-Original Message-
From: Appal Energy [mailto:[EMAIL PROTECTED]
Sent: Tuesday, 18 September 2001 1:02 PM
To: biofuel@yahoogroups.com
Subject: [biofuel] Ethanol from cellulose


Don't suppose any rocket scientists here can point a soul to an in depth
site or two on ethanol from ligno-cellulosic material and destructive
distillation?

Had an inquiry and an itch.

Todd
Appal Energy
[EMAIL PROTECTED]



[Non-text portions of this message have been removed]



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RE: [biofuel] Ethanol from cellulose

[Marcelino Miranda]

Message for Hanns B. Wetzel.
Can you please send me a copy of the full report?
This may be very useful for us in the forest of Jujuy, up North in
Argentina.
Thank you.
Marcelino Miranda

-Mensaje original-
De: Hanns B. Wetzel [mailto:[EMAIL PROTECTED]
Enviado el: Miercoles, 19 de Septiembre de 2001 11:21 a.m.
Para: biofuel@yahoogroups.com
Asunto: RE: [biofuel] Ethanol from cellulose


Todd,

An in-depth technical and economic analysis prepared for the U.S. DOE is a
pdf document titled "Lignocellulosic Biomass to
Ethanol Process Design and Economics Utilizing Co-Current Dilute Acid
Prehydrolysis and Enzymatic Hydrolysis Current and Futuristic Scenarios" (a
mouthful:-]) prepared by the National Renewable Energy Laboratory in July
1999. It is available via www.afdc.doe.gov/altfuels.htm but that site seems
to be off the air at present. I got a copy on disk (1992Kb), it is very
detailed. Will send you a copy if you like.

Hanns

-Original Message-
From: Appal Energy [mailto:[EMAIL PROTECTED]
Sent: Tuesday, 18 September 2001 1:02 PM
To: biofuel@yahoogroups.com
Subject: [biofuel] Ethanol from cellulose


Don't suppose any rocket scientists here can point a soul to an in depth
site or two on ethanol from ligno-cellulosic material and destructive
distillation?

Had an inquiry and an itch.

Todd
Appal Energy
[EMAIL PROTECTED]



[Non-text portions of this message have been removed]



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RE: [biofuel] Ethanol from cellulose

[Hanns B. Wetzel]

Todd,

An in-depth technical and economic analysis prepared for the U.S. DOE is a
pdf document titled "Lignocellulosic Biomass to
Ethanol Process Design and Economics Utilizing Co-Current Dilute Acid
Prehydrolysis and Enzymatic Hydrolysis Current and Futuristic Scenarios" (a
mouthful:-]) prepared by the National Renewable Energy Laboratory in July
1999. It is available via www.afdc.doe.gov/altfuels.htm but that site seems
to be off the air at present. I got a copy on disk (1992Kb), it is very
detailed. Will send you a copy if you like.

Hanns

-Original Message-
From: Appal Energy [mailto:[EMAIL PROTECTED]
Sent: Tuesday, 18 September 2001 1:02 PM
To: biofuel@yahoogroups.com
Subject: [biofuel] Ethanol from cellulose


Don't suppose any rocket scientists here can point a soul to an in depth
site or two on ethanol from ligno-cellulosic material and destructive
distillation?

Had an inquiry and an itch.

Todd
Appal Energy
[EMAIL PROTECTED]



[Non-text portions of this message have been removed]



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Re: [biofuel] Ethanol from cellulose

[steve spence]

http://www.webconx.com/sawdust_ethanol.htm

Steve Spence
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- Original Message -
From: "Appal Energy" <[EMAIL PROTECTED]>
To: 
Sent: Monday, September 17, 2001 11:01 PM
Subject: [biofuel] Ethanol from cellulose


> Don't suppose any rocket scientists here can point a soul to an in depth
site or two on ethanol from ligno-cellulosic material and destructive
distillation?
>
> Had an inquiry and an itch.
>
> Todd
> Appal Energy
> [EMAIL PROTECTED]
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> Biofuel at Journey to Forever:
> http://journeytoforever.org/biofuel.html
> Please do NOT send "unsubscribe" messages to the list address.
> To unsubscribe, send an email to:
> [EMAIL PROTECTED]
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>


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Re: [biofuel] Ethanol from cellulose

[Keith Addison]

Hi Todd

Try the first one.

 From Ethanol resources on the Web: Journey to Forever
http://journeytoforever.org/ethanol_link.html

Ethanol from cellulose

"Wood-Ethanol Report: Technology Review", Environment Canada 1999 -- 
good overview of the problem and the current solutions on offer.
http://www.pyr.ec.gc.ca/ep/wet/section16.html

Arkenol Inc. is a pioneer in processing cellulose biomas into 
ethanol: agricultural wastes, straw, leaves, grass clippings, sawdust 
or old newspapers. The company uses proprietary concentrated acid 
hydrolysis technology and is in the final development stages for a 48 
million litre per year biorefinery in Sacramento, California 
processing rice straw.
http://www.arkenol.com

The Iogen Corporation of Canada is "the leader in developing and 
manufacturing ethanol-from-cellulose". The Iogen process is an 
enzymatic hydrolysis process for converting lignocellulosics to 
ethanol -- uses steam explosion pretreatment pioneered by the company 
and Iogen's proprietary enzymes.
http://www.iogen.ca/fuels.htm

BC International Corporation uses a genetically modified organism to 
produce ethanol from biomass wastes such as agricultural residues, 
municipal waste, and forest thinnings. Two-stage dilute acid 
hydrolysis process for the preparation of the sugar streams and two 
separate fermentations although both use the same organism.
http://www.bcintlcorp.com/

"Ethanol Production in Hawaii", a "pre-feasibility" study who a focus 
on ethanol from cellulose. Includes comparison of the different 
processes: simultaneous saccharification and fermentation; 
concentrated acid hydrolysis, neutralization and fermentation; 
ammonia disruption, hydrolysis and fermentation; steam disruption, 
hydrolysis and fermentation; acid disruption and transgenic 
microorganism fermentation; concentrated acid hydrolysis, acid 
recycle and fermentation; and acidified acetone extraction, 
hydrolysis and fermentation.
http://www.hawaii.gov/dbedt/ert/ethanol/ethano94.html
Good list of references:
http://www.hawaii.gov/dbedt/ert/ethanol/refs.html

Genencore & DOE Move Closer to Fuel Ethanol from Biomass Cellulose - 
See: Biomass Conversion with Enzymes:
http://www.newuses.org/EG/EG-23/23genetic.html

Mustard Plants Produce Low-Cost Enzymes for Making Ethanol -- 
Researchers at the University of Colorado (CU) at Boulder have 
developed a potentially low- cost method of producing the cellulase 
enzyme for converting woody biomass materials into ethanol.
http://www.colorado.edu/PublicRelations/NewsReleases/2001/1244.html
New Research May Reduce Renewable Fuel Costs
http://ens-news.com/ens/may2001/2001L-05-24-09.html

Keith Addison
Journey to Forever
Handmade Projects
Tokyo
http://journeytoforever.org/



>Don't suppose any rocket scientists here can point a soul to an in 
>depth site or two on ethanol from ligno-cellulosic material and 
>destructive distillation?
>
>Had an inquiry and an itch.
>
>Todd
>Appal Energy
>[EMAIL PROTECTED]


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[biofuel] Ethanol from cellulose

[Appal Energy]

Don't suppose any rocket scientists here can point a soul to an in depth site 
or two on ethanol from ligno-cellulosic material and destructive distillation?

Had an inquiry and an itch.

Todd
Appal Energy
[EMAIL PROTECTED]



[Non-text portions of this message have been removed]


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[biofuel] Ethanol from cellulose

[DAVID REID]

Keith,
 I know 
nothing about quasi-portable ethanol plants using acid, catalyst and steam 
treatment in  globe shaped pressure vessels to obtain sugars but virtually 
all the successful processes so far use a combination of these systems to 
acheive success with variable results. At the end of the day wether it can be 
done efficiently and economically comes down to energy costs to run the process. 
When you can utilize an extremely cheap energy source that is not being utilized 
fully or is going to waste the chances of success are that much greater. This is 
the secret of why Anchor Ethanol here in NZ are able to turn whey with 
most of the lactose sugars which are easily removed taken from it and not 
having a great % remaining are able to take the residue and turn this into top 
quality ethanol using the patented Carberry process. This uses a specially 
selected strain of  lactose sugar fermenting yeast called Kluyveromyces 
marxianus, variety marxianus. The secret of their success is that that they use 
geothermal energy for their energy source which is basically free after the 
initial cost of hooking it up. Note that under this process using whey one can 
only expect to obtain about 2.5% by volume so you can imagine how energy 
intensive the whole process and especially distillation is. This is why the 2 
plants that make it in NZ are situated where they are.
In the longterm the solution to converting cellulose and 
hemi-cellulose to ethanol are pretty much the same and those who succeed will be 
those that use a free enegy source or one that is going to waste at present. 

As previously already mentioned there are now g.m. yeasts 
that can convert the xylose portion into ethanol as well. As a result it is now 
possible to produce at least 30% and sometimes up to 40% more from the same 
stock as before. In a few years there will probably be more efficient yeasts 
again.
The answers are out there. They are just waiting to be 
found or put together in the right way.
I suggest that you ask tvoivozhd to dig out the information 
and if people bear in mind what I have said above about energy cost being the 
solution then someone who can apply an alternative source may be able to achieve 
reasonable success for a certain volume of output.
Most of the time it has all been done before or the solution 
is already in place. The answer is in thinking laterally and coming up with a 
better solution. All in the meantime.
B.r.,  David






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Re: [biofuel] Ethanol from cellulose

[Keith Addison]

>Does anyone know if and how you can make ethanol from cellulose, in
>particularly cotton and cotton waste products such as gin waste and
>textile mill waste?
>Thanks,
>Sam


Hi Sam

See the Files section at the biofuels list website (members only 
access), "sawdust.html - Fuel From Sawdust", at:
http://www.egroups.com/group/biofuel

Or sign in first with your email address and password at:
http://www.egroups.com/mygroups


Also the Alcohol Fuel Manual in the Files section has a chapter on 
Cellulose Conversion. Click on "manual - Alcohol Fuel Manual", the 
chapters are inside the folder.

The Manual for the Home and Farm Production of Alcohol Fuel
by S.W. Mathewson
Chapter 8
Processing Steps Specific To Cellulose Materials - Cellulose Conversion



Arkenol Inc.
http://www.arkenol.com
A chemical company that is looking to the sugar barrel instead of the 
oil barrel for fuel supplies. Arkenol is a pioneer in processing 
cellulose biomas into ethanol: agricultural wastes, straw, leaves, 
grass clippings, sawdust or old newspapers.
(From http://journeytoforever.org/ethanol_link.html)



 From list message archives:

From: "DAVID REID" <[EMAIL PROTECTED]>
Date: Tue, 30 May 2000 17:14:43 +1200
Reply-To: biofuel@egroups.com
Subject: Re: [biofuel] Fuel From Sawdust

Keith, Steve, et al,
 The Forest Research Institute here in NZ at
Rotorua ran quite an involved  series of trials using sawdust for ethanol
production during the 80s and I believe were at that time at the forefront
of this use. I have the file somewhere here as I was looking into the use of
this byproduct with one of the newly developed G.E. yeasts that can ferment
the xylose (cellulose) fraction as well as the carbohydrate portion. Voila!
At least 30% and up to 40% more ethanol without a major byproduct waste you
need to get rid of. Had forgotten about it for the last few months
B.r.,  David Reid


From: Robert Warren <[EMAIL PROTECTED]>
Date: Tue, 30 May 2000 10:37:25 -0400 (EDT)
Reply-To: biofuel@egroups.com
Subject: [biofuel] Fuel From Sawdust

Keith, Steve, et al
This reminds me, I have visited NREL in Golden,
Colorado many times, and one time I got to visit
the lab where they were working on this very issue
of convertering sawdust through acid hydrolisis
and fermentation. They easily had over one million
dollars in automated stainless steel tanks,
piping, electronic controls, and such, and they
were successful. They have some extensive reports
on this subject if you care to browse through
there library. Their stuff is on the technical
side, but they have done specific work on
identifing specific microbes which work well. Go
to www.nrel.gov or
to http://www.afdc.nrel.gov/


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Re: [biofuel] Ethanol from cellulose

[Steve Spence]

yes, even sawdust. see http://www.webconx.com/ethanol.htm

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- Original Message - 
From: "Sam Dabbs" <[EMAIL PROTECTED]>
To: 
Sent: Saturday, September 30, 2000 7:24 PM
Subject: [biofuel] Ethanol from cellulose


> Does anyone know if and how you can make ethanol from cellulose, in 
> particularly cotton and cotton waste products such as gin waste and 
> textile mill waste?
> Thanks,
> Sam
> 
> 
> Biofuel at Journey to Forever: 
> http://journeytoforever.org/biofuel.html
> To unsubscribe, send an email to: 
> [EMAIL PROTECTED] 
> 
> 


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[biofuel] Ethanol from cellulose

[Sam Dabbs]

Does anyone know if and how you can make ethanol from cellulose, in 
particularly cotton and cotton waste products such as gin waste and 
textile mill waste?
Thanks,
Sam


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