[Stoves] Char used for cooking

[Nikhil Desai]

Frank:

This too is beyond my pay grade, and I was afraid to ask, but now please
enlighten me -- what is the idea here?

That peat or some other form of low-energy density biomass when ignited
with gas under controlled conditions yields higher char yield? I doubt
that. Gases from combustion should do that job.

Or are you suggesting that some char, once made, be mixed with gas and
packed in a certain way? That too is beyond my imagination.

What precisely do you mean by making a gas into a solid? Any comparable
parallel in combustion alternatives?

Because, rather than household cookstoves, you might be on to something
radical for on-land flared gas. A lot of small oil fields are neglected if
they are too gassy. If gas can be used, combined with waste biomass in the
area, to produce a higher-density solid fuel, there might be a market
without the hassle of tankers or pipelines.

I am still confused.

Nikhil

------------------------------------------------------------------------


On Thu, Sep 21, 2017 at 11:40 AM, Frank Shields <franke at cruzio.com> wrote:

> Nikhil and Stovers,
>
> Point being we can load a good char with 8g of butane for every 100 g char
> for a typical char. Thats a lot of added energy per volume - I am thinking.
> Butane is not the only gas it will take up.Methane is another from past
> experimenting to see of Canadian Peat that is charred will take up CH4.
> More research needed.
>
> Could be a good way to make a gas into a solid easy to transport? store?
> Perhaps increasing the energy value of char when used for cooking? Perhaps
> useful in other ways. Easy to start a fire.
>
> Frank
>
>
>
>
>
>
>
>
> On Sep 21, 2017, at 7:31 AM, Nikhil Desai <pienergy2008 at gmail.com> wrote:
>
> Andrew:
>
> What "heavy metals" in what kind of biomasses?
>
> This is a new one for me.
>
> Nikhil
>
> On Thu, Sep 21, 2017 at 4:09 AM, Andrew Heggie <aj.heggie at gmail.com>
> wrote:
>
>> On 21 September 2017 at 06:30, Frank Shields <franke at cruzio.com> wrote:
>> > Stovers,
>> >
>> > When i do a butane activity test I pass butane gas through the char and
>> a
>> > good char will take up ~ 20g butane for every 100 g dry char. Most is
>> around
>> > 8 g added to 100 g dry.
>>
>> This is adsorption?  Presumably the more internal surface area the
>> more butane is retained. Most chars are only mildly activated and the
>> effect is increased many fold by treating the char with an oxidant
>> that will "pit" the structure.
>>
>> >On a volume basis there should be an increase in
>> > energy. Filling stoves is done on a volume basis. Not sure about
>> increase of
>> > energy on a weight basis.
>>
>> As butane has three times the calorific value of wood it should be
>> more but what's the point, for cooking, in devolatising wood to make
>> char just to add a gas back?
>>
>>
>> >Butane is what I use but the char will take up
>> > other organic gases.
>>
>> ... and heavy metals apparently
>>
>> Andrew
>>
>>
>
> _______________________________________________
> Stoves mailing list
>
> to Send a Message to the list, use the email address
> stoves at lists.bioenergylists.org
>
> to UNSUBSCRIBE or Change your List Settings use the web page
> http://lists.bioenergylists.org/mailman/listinfo/stoves_
> lists.bioenergylists.org
>
> for more Biomass Cooking Stoves,  News and Information see our web site:
> http://stoves.bioenergylists.org/
>
>
> Thanks
>
> Frank
>
> Frank Shields
> Gabilan Laboratory
> Keith Day Company, Inc.
> 1091 Madison Lane
> <https://maps.google.com/?q=1091+Madison+LaneSalinas,+CA+%C2%A093907&entry=gmail&source=g>
> Salinas, CA
> <https://maps.google.com/?q=1091+Madison+LaneSalinas,+CA+%C2%A093907&entry=gmail&source=g>
>  93907
> <https://maps.google.com/?q=1091+Madison+LaneSalinas,+CA+%C2%A093907&entry=gmail&source=g>
> (831) 246-0417 cell
> (831) 771-0126 office
>
> franke at cruzio.com
>
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20170921/817eb930/attachment.html>