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: [email protected] To: [email protected] 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 atio of hydrogen to carbon monoxide. As an example, ammonia syngas as efined in flow sheets for an ammonia plant is 3H2:1N2. Syngas for FT eactions an be from .6H2:1CO-1.5H2:CO, with iron based catalysts requiring less H2 han cobalt catalysts because the iron catalyst will do it's own shift eaction. Produced gas, water gas, blue gas, low heating value gas, low CV as are ll more appropriate designations for air based gasification systems. Even n xygen or steam driven gasification system will not produce a "syngas" ppropriate for certain catalyst reactions, but will work for many. The use of nitrogen in the gas is indeed done in some of the more opshisticated catalyst systems because it reduces the thermal concentration n the ypically exothermic reactor such as FT reactions which in turn reduces the mount of cooling needed for the reactor design which can be a significant ffect. The use of the term "syngas" is inappropriate for any gasification system ecause 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 ontaminants removed such as Cl, S, organics so that the catalyst is not amaged y it. Sincerely, eland T. "Tom" Taylor resident hermogenics Inc. 05.463.8422 ww.thermogenics.com ______________________________________________ he Gasification list has moved to [email protected] - please update your email contacts to eflect the change. lease visit http://info.bioenergylists.org for more news on the list move. hank you, asification Administrator _______________________________________________ asification mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page ttp://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org for more Gasifiers, News and Information see our web site: ttp://gasifiers.bioenergylists.org/
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