[Gasification] SPAM: Re: newbie question...

Sat Apr 4 23:28:23 CDT 2015

Dear Terrey,

About three years ago I applied the Roger Sampson rice husk method to a
pile of chopped switch grass. One makes a container for some activation
fuel and a stove pipe on top. Next the igniter gets covered with a pile of
(in my case) switch grass. Next light the activation fuel by dropping a
burning item down the flue pipe. There might be a cross pipe at the bottom,
I don't recall. Stand ready, with water, to put out any fire that may
develop on the surface. It showed some promise but I never had the time to
further it.

I do not know if he still has his site, it was called something like REAP
Canada. It was a PDF document with a non English word in the title, maybe
something like Benchi Soil??????    He has been quite for years now so he
might be doing something else.

Best regards,
Jeff

______________________________________________
"Once an owner has got used to charcoal gas he will never revert to the
more expensive fuels", Geo Bray
On Apr 4, 2015 10:21 PM, "T. GILL" <maxlochangill at gmail.com> wrote:

> Hi Tom,
>
> Thanks for the reply and feed back. Every year millions of tons of rice
> straw and part of wheat straw is burnt, which leads to massive air
> pollution and irreversible damage to the soil in Northern India. To make
> the matter worse, this burning is done in a short period of a couple of
> weeks, resulting in so much escalation in air pollution that, often people
> no medical history of  asthma have problems breathing.
>
> Although burning of the paddy is banned under the law, but implementation
> of the law is difficult, and little can the achieved without improving the
> awareness of the farmers and finding a Eco-friendly solution such as its
> conversion to bio-char.
>
> Well capacity of the bio-char kiln can be anything to between 2-5 mt/hr
> for a fast pyrolysis and comparatively less for slow smouldering
> carbonization.
>
> I am also keen on designs of temporary kilns which can be made using clay,
> and can be destroyed after the straw is converted to bio-char. This
> bio-char goes into soil anyway to improve the crop yield.
>
> Regards,
> Terrey
>
> On Fri, Apr 3, 2015 at 11:08 AM, Tom Miles <tmiles at trmiles.com> wrote:
>
>> Carbonizing wheat straw  is a challenge. It is very low yield. The straw
>> itself contains enough air to support smoldering combustion. While it is
>> likely that the terra preta soils in Brazil were partly from smoldering
>> grasses the yield in char would have been very low. Having said that it is
>> both possible and desirable to carbonize grasses. Straw gasification is
>> just harder to control.  Some big bale size batch carbonizers have been
>> developed in Australia. A small stale externally heated carbonizer was
>> developed by ARTI in India.
>>
>>
>>
>> What scale or capacity are you looking for? Our biochar bloggers on Yahoo
>> may be helpful.
>>
>>
>>
>> Tom Miles
>>
>> www.gasifiers.bioenergylists.org
>>
>> www.biochar.bioenergylists.org
>>
>>
>>
>> *From:* Gasification [mailto:
>> gasification-bounces at lists.bioenergylists.org] *On Behalf Of *T. GILL
>> *Sent:* Thursday, April 02, 2015 7:02 PM
>> *To:* Discussion of biomass pyrolysis and gasification
>> *Subject:* SPAM: Re: [Gasification] newbie question...
>>
>>
>>
>> Hi All,
>>
>> I am looking for a design for a  pyrolysis unit to convert hay (from
>> wheat) into bio-char.
>>
>> Is it possible to convert the hay into bio-char with out using any
>> external fuel such as coal or gas?
>>
>> Is it possible to use the hay as a fuel for slow pyrolysis.
>>
>> please give you feed back.
>>
>> Terrey Gill
>>
>>
>>
>> On Thu, Apr 2, 2015 at 12:01 PM, Jeff Davis <jeffdavis0124 at gmail.com>
>> wrote:
>>
>> I think Tom has a methane list somewhere. Maybe:
>>
>> http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org
>>
>> Pyrolysis gas can have a lot of tar in it. What is your plans for that?
>>
>> Jeff
>>
>> ______________________________________________
>> "Once an owner has got used to charcoal gas he will never revert to the
>> more expensive fuels", Geo Bray
>>
>> On Apr 1, 2015 5:43 PM, "hugh" <hugh at austrop.org.au> wrote:
>>
>> Just joined .. and have been interested in gas from wood pyrolysisfor
>> quite a while - but also in methane from bio-digestion (small scale) .. and
>> haven't been able to find a suitable group
>>
>> Does anybody have some suggestions?
>>
>> Cheers
>>
>> Hugh
>>
>> (Dr) Hugh Spencer
>> Australian Tropical Research Foundation
>> Cape Tribulation Tropical Research Station
>> PMB 5 Cape Tribulation Qld.
>>
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>
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