[Gasification] Syngas on Wiki_

Pannirselvam P.V pannirbr at gmail.com
Wed Dec 29 11:45:59 CST 2010


Leland

 Methane AND cO2 can be made from syngas rich in co and h2 via  ANEAROBIC
METHANE BACTERIAS

BIOTHERMAL  , IGT ,USA  patented can do well .


Methane  compared to bioconversion of ethanol  can de more viable from
syngas

On Tue, Dec 28, 2010 at 11:43 PM, Leland T Taylor <linvent at aol.com> wrote:

> CO2 may interfere with the catalysis. CO2 to methane requires H2 the right
> catalyst and high temperature, don't remember, but up there.
> Tom Taylor
>
>
>
> -- Sent from my Palm Pixi
>
> ------------------------------
> On Dec 28, 2010 5:56 PM, GF <gfwhell at aol.com> wrote:
>
>  Tom,
>
> What effect is produced if nitrogen were substituted by CO 2 in the Fischer
> Tropf process?
> I know steam is cracked into O+H2, What sort of temperatures are required
> to convert  CO2 into methane?
>
> HAPPY NEW YEAR
>
> GF
>
>
> -----Original Message-----
> From: LINVENT at aol.com
> To: gasification at bioenergylists.org
> Sent: Tue, Dec 28, 2010 6:59 pm
> Subject: Re: [Gasification] Syngas on Wiki_
>
> I believe that syngas is specific to the application, and is based on the
> ratio of hydrogen to carbon monoxide. As an example, ammonia syngas as
> defined in flow sheets for an ammonia plant is 3H2:1N2. Syngas for FT
> reactions
> can be from .6H2:1CO-1.5H2:CO, with iron based catalysts requiring less H2
> than cobalt catalysts because the iron catalyst will do it's own shift
> reaction. Produced gas, water gas, blue gas, low heating value gas, low CV
> gas are
> all more appropriate designations for air based gasification systems. Even
> an
> oxygen or steam driven gasification system will not produce a "syngas"
> appropriate for certain catalyst reactions, but will work for many.
>
> The use of nitrogen in the gas is indeed done in some of the more
> sopshisticated catalyst systems because it reduces the thermal concentration
> in the
> typically exothermic reactor such as FT reactions which in turn reduces the
> amount of cooling needed for the reactor design which can be a significant
> effect.
>
> The use of the term "syngas" is inappropriate for any gasification system
> because it is a specific composition based on the catalyst used. Only syngas
>
> can be called this when it is cleaned, balanced for the catalyst with
> contaminants removed such as Cl, S, organics so that the catalyst is not
> damaged
> by it.
>
>
>
> Sincerely,
> Leland T. "Tom" Taylor
> President
> Thermogenics Inc.
> 505.463.8422www.thermogenics.com
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