Tom,
So how do
we make synthesis gas as clearly this must be our main aim. (rather than good
ole producer gas with that sweet sickly smell and tars that gum up engines)
Thanks
Gavin
Gavin
Gulliver-Goodall
3G
Energi,
Tel +44 (0)1835
824201
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8314098
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781498
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Gavin@3genergi.co.uk <mailto:Gavin@3genergi.co.uk>
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-----Original
Message-----
From: Tom Reed
[mailto:tombreed@attbi.com]
Sent: Wednesday, November 20, 2002
16:04
To: A.D. Karve; stoves@crest.org;
gasification
Cc: esloan@mines.edu
Subject: Gases for domestic
cooking
Dear
Nandu et al:
PROPANE
is my favorite 20th century fuel because
It
burns very clean as a gas
It
stores as a liquid at relatively low pressures (<15 atm, boiling point -42C)
It is
self delivered (no fuel pump)
It has
a very high energy both on a liquid, gas and weight basis
Unfortunately
it is <3% of the oil barrel and as oil prices go up will be ever less
available to those who need it least. It can't be synthesized from other
oil components or biomass.
DIMETHYL
ETHER, DME is my favorite 21st Century fuel because
It
burns very clean as a gas and is being considered for diesel engines (and I
suspect, spark)
It
stores as a liquid at relatively low pressures (<15 atm, boiling point -42C)
It is
self delivered (no fuel pump)
It has
a very high energy both on a liquid, gas and weight basis
It is
even easier to make from synthesis gas than methanol, my favorite liquid fuel
METHANE
is not nearly so nice, because
It is a
permanent gas (BP = -164C, lots of energy to liquefy, stored in VERY heavy
cylinders), so hard to store
Pipelines
cost >$10/mile. Do you have any domestic methane in India?
Less
than half the energy of propane
BIOGAS
has most of the faults of methane with only 2/3 the energy due to 1/3 CO2
content.
However,
I wonder if it isn't easier to liquefy than methane because the CO2 boils much
higher AND MAY FORM A HYDRATE.
Does
anyone know about this (i.e. Dendy Sloan)?
PRODUCER
GAS is the worst of this list because it contains 50% N2 BUT
It is
very easily made by the air gasification of all sorts of biomass, and can be used
locally for heat or power generation, a well proven technology (www.gocpc.com)
SYNTHESIS
GAS in my favorite synthetic gas from biomass, since proven processes exist to
make it into methanol, DME, diesel gasoline or ammonia, all the necessities of
our current civilization.
Comments?
TOM
REED
BEF GASWORKS
Dr. Thomas B.
Reed
1810 Smith Rd., Golden, CO 80401
tombreed@attbi.com; 303 278 0558
Phone/Fax
-----
Original Message -----
To: stoves@crest.org
Sent: Tuesday, November 19,
2002 10:38 AM
Subject:
cooking devices for rural India
LPG has
become popular all over India because of its extreme user friendliness.
Housewives have changed their ethnic and cultural cooking habits, scrapped
their traditional cookpots and purchased new ones that suit the LPG
stoves. Biogas has the same qualities as LPG but the biogas technology failed
to become popular in India because everybody was supposed to make his own
biogas. We are working towards establishing rural enterprises producing
and selling biogas. The so called community biogas plants have not at all
been successful in India, but we feel that we have the right formula to make
them successful. I am trying to get funding for establishing a pilot plant
based on my ideas, and shall report about it when it gets going.
A.D.Karve
