[Gasification] back to gasification

[Anand Karve]

Dear Dr. House,
agricultural waste is generated automatically, without any extra land
or inputs. India generates annually about 800 million tons of
agriculture waste, the calorific value of which is almost 2.5 times
that of the 120 million tons of petroleum that is annually imported
into India.
Yours
A.D.Karve

On Tue, May 31, 2011 at 11:50 PM, David <david at h4c.org> wrote:
>
> Dr. Karve and list members,
>
> On Mon, May 30, 2011 at 11:01 PM, Anand Karve <adkarve at gmail.com> wrote:
>
> We are already using, in India, wood gas made from agricultural waste to run
> stationary internal combustion engines. But, for using it as automobile
> fuel, it would have to be filled into cylinders, for which the nitrogen in
> the wood gas would have to be removed in order to reduce its bulk and to
> increase its calorfiic value. Does anybody have a suggestion as to how this
> can be achieved?
>
> There are no doubt exceptions in some circumstances, but biogas is generally
> rather more efficient at turning a hectare of plants into energy than a
> number of other forms of biomass conversion, and certainly less polluting.
> See, for example, this study by Roger Sampson and colleagues, or this report
> about another study, done for the EU, which examined a large number of
> biofuel and powertrain options. More information here.
>
> Even so, powering general-purpose ICE vehicles by the direct use of highly
> incompressible biomethane will only make sense at industrial scales (for
> example), at least as I see it. An excellent lower-tech, distributed
> alternative is biodiesel production to produce liquid fuel, where the plant
> wastes, seed cake and the leftovers from transesterification are made into
> biogas (or perhaps ethanol where again, biogas is made from whatever
> digestible matter is not consumed in the process).
>
>
>
> d.
> --
> David William House
> "The Complete Biogas Handbook" www.completebiogas.com
> Vahid Biogas, an alternative energy consultancy www.vahidbiogas.com
>
> "Make no search for water.       But find thirst,
> And water from the very ground will burst."
> (Rumi, a Persian mystic poet, quoted in Delight of Hearts, p. 77)
>
> http://bahai.us/
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>



-- 
***
Dr. A.D. Karve
President, Appropriate Rural Technology Institute (ARTI)

*Please change my email address in your records to: adkarve at gmail.com *