Helow Brain, Tom , Robert , Keith and every one
As I am from academics side involved in this subject in our
list with PHD thesis (IIT, Delhi, India in 1980) on enzymatic
hydrolysis of bimass waste and following the research for the past
25 years in this area .After seeing remarkable break through in
cellulase enzyme productivity and costs, now I am sure that the
low energy path of depolymerization of cellulose using enzymes can be
practical for distributed bioethanol made possible from paper and
biomass wastes. Eventhouh acid hydrolysis is commercially proven
technology , some physical and Biological pretreatment using fungi
followed by the enzymatic hydrolysis using commercially available
celluase enzyme , with reuse of enzymes can make possible
practically depolymerize cellulose to higher yield , making also
possible the simultaneous fermentation and depolimerization all this
as well studied with higher yields too. However the problems are yet
the low concentration of alcohol in the process and enzyme recovery
yet not very high.
With the use of solvent (caster oil ) alcohol and water as
described her in the biofuel list archives can make possible to
overcome the problems ina practical way and sub products ezymatically
degraded ethanol soluble lignin can be used as an usfuel biofuel as
lignin has higher calorific value.The mushroom process can make
depolimerization in practical way as an effective pretreatment.
This route is yet to be outined in detail in web page of
http://journeytoforever.org/biofuel.html
Yet, Keith has some infomation , but not yet published in the web
pages as this small biomass refinary not yet matured one but is
developing fast one to be as this not only the acadamic , but also
practical one for the very near future.
Small Biomass refinery for biofuel production by rural farmer can
bring food, feed , fuel,fertillizer in a decentralized way with more
sustainabilty and peace to the world.
I am sure that our biofuel list and the list members is the only
global forum to make this path , transfer it global and make the
difusion to all parts of the world who need it.
Greeting to all
Yours truely
Pannirselvam
Brasil
On 8/13/05, Brian Rodgers <[EMAIL PROTECTED]> wrote:
> Thank you Tom, Robert, and everyone for the fantastic feedback.
>
> I received an email from my Dad, the retired chemist. He suggests we move
> away from the idea of de-polymerizing cellulose as it seems out of our reach
> financially and technologically. I am happy to let the process of
> mycelium-rot to the fungi folks and let them see what they can do with it.
> Dad said he could find no serious research into cellulose breakdown by any
> of his friends at the university. Without the help of these academics, he
> believes we can not continue on our own. I told him we would continue to
> knock it around at the Biofuels email list.
>
>
> I will continue to pursue the ethanol angle, but I will stick to
> conventional methods of fermentation. For instance, I will explore the
> naturally occurring sugar plants. A friend came by the other day with wine
> made from prickly pears. Very potent drink with all the flavor a wine
> enthusiast can wish for. I will search for more locally available, naturally
> occurring, sugary feedstock to get my experiments going with fermentation.
>
> My next research project will be steam power.
>
> With more great info found through the vast wealth of knowledge at the
> Journey to Forever web site, I think it makes a lot of sense to burn the
> readily available waste wood as opposed to breaking it down in order to
> ferment it. I realize that the smoke is going to be a problem, so I am
> hoping with experience I gained building several wood burning heat stoves I
> can build an efficient fire box.
>
>
> It's weird, but the morning process around here is similar to the steam
> engine. As I work on my daily newsletter, ideas are slow to build up, gain
> momentum, albeit sloppy and sluggish, then the whistle blows, and I finally
> figure out what I want to write about. Then I have to read what I already
> have, edit out the erroneous filler that got me focused in the first place,
> and then I really get going, full steam ahead.
>
> I was talking with my older brother last night. I attempted to inspire him
> with my new plans for a steam powered ranch community. One massive,
> centrally located, wood fired boiler which easily converts waste wood to
> energy. Steam is routed to several households in close proximity. A nearby
> steam powered electric generator should be able to furnish enough power to
> run the entire ranch with power left over during non-peak electric use hours
> to sell back to the local Electric Co-Op. I still need to research the
> circuits needed to reverse power back through the meter. But this is well
> within my understanding, much more so than chemistry.
>
>
> Sincerely,
> Brian Rodgers
>
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>
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>
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>
>
>
>
--
Pagandai V Pannirselvam
Universidade Federal do Rio Grande do Norte - UFRN
Departamento de Engenharia Química - DEQ
Centro de Tecnologia - CT
Programa de Pós Graduação em Engenharia Química - PPGEQ
Grupo de Pesquisa em Engenharia de Custos - GPEC
Av. Senador Salgado Filho, Campus Universitário
CEP 59.072-970 , Natal/RN - Brasil
Residence :
Av Odilon gome de lima, 2951,
Q6/Bl.G/Apt 102
Capim Macio
EP 59.078-400 , Natal/RN - Brasil
Telefone(fone ) ( 84 ) 3215-37690 Ramal210
32171557
Telefone(fax) ( 84 ) 3215-3770
residencia 32171557
Cellular 84 88145083
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