[Gasification] eliminating carbon monoxide from coal gas

[Jeff Davis]

If the gasifier is air blown with some steam added the reaction will remain
exothermic. If the gasifier is brought up to temp with air and then
switched to steam blown then the reaction will be endothermic on pure steam
and will need to be toggled back to air blown hence town gas.

Jeff


______________________________________________
"Once an owner has got used to charcoal gas he will never revert to the
more expensive fuels", Geo Bray
On Apr 12, 2015 9:37 PM, "Viswanathan KS" <viswanathanks at gmail.com> wrote:

> Dr Karve wrote
> Quote
> --------. When hot charcoal is treated with steam, it produces coal
> gas, consisting of a mixture of carbon monoxide and hydrogen. We have
> used this reaction in an experimental stove, in which the coal gas is
> used as fuel.   Can anybody suggest a simple method of removing carbon
> monoxide from coal gas?
> Unquote
>
> Is this reaction sustainable or will the charcoal fire get extinguished
> due to prolonged passage of steam?
>
> The answer to this question should determine the continuation of the
> discussion.
>
> On Mon, Apr 13, 2015 at 6:54 AM, Henri Naths <c_hnaths at telusplanet.net>
> wrote:
>
>> Hello Anand
>>
>> Some of  the CO can be removed using the water gas reaction. This well
>> known stoichiometry of the water the water-gas shift reaction is : co+h20
>> <=>h2+co2+heat ( exothermic)
>>
>> In an efficient heat integrated scheme , the heat of the reaction can be
>> recovered as superheated high pressure steam.
>>
>> H.
>>
>>
>>
>>
>>
>> On Apr 11, 2015, at 9:14 PM, Anand Karve <adkarve at gmail.com> wrote:
>>
>> Coal gas as automotive fuel
>> Agriculture, forests and urban centres  in India produce annually
>> about 1000 million tons of combustible waste biomass. Its energy
>> content is almost 3 times as much as the petroleum that we currently
>> use in our country.  Samuchit Enviro Tech developed a simple and
>> nonpolluting technology for converting combustible biomass into
>> charcoal. When hot charcoal is treated with steam, it produces coal
>> gas, consisting of a mixture of carbon monoxide and hydrogen. We have
>> used this reaction in an experimental stove, in which the coal gas is
>> used as fuel.   Can anybody suggest a simple method of removing carbon
>> monoxide from coal gas?
>> Yours
>> A.D.Karve
>>
>> ***
>> Dr. A.D. Karve
>>
>> Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com)
>>
>> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
>>
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