[Gasification] How much ton of biomass will burn to produce 1 ton of CO2?

A.Saravanakumar sara_mnes at rediffmail.com
Fri Aug 19 10:35:05 PDT 2011


Dear Booster Reed,



How much ton of biomass will burn to produce 1 ton of CO2?



A. Saravanakumar



On Fri, 19 Aug 2011 00:38:55 +0530  wrote

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Today's Topics:







  1. Re: CO2 emission of whole system for smaall size generator



   (20kWe) (GF)



  2. Re: CO2 emission of whole system for smaall size generator



   (20kWe) (Arnt Karlsen)



  3. Re: CO2 emission of whole system for smaall sizegenerator



   (20kWe) (Thomas Reed)











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Message: 1



Date: Wed, 17 Aug 2011 21:04:26 -0400 (EDT)



From: GF 



To: gasification at lists.bioenergylists.org



Subject: Re: [Gasification] CO2 emission of whole system for smaall



size generator (20kWe)



Message-ID: 



Content-Type: text/plain; charset="utf-8"











It is a little known fact that CO2 can be converted into Methane. Years 

ago this was expensive and quite a difficult reaction to perform, 

involving very high pressure and temperature reaction chambers together 

with exotic catalysts. However,over the years since "Sabatier" 

discovered how to perform this remarkable feat, fuel and chemical 

refiners have developed a lower cost approach. But fairly high 

temperatures are still required, making the process expensive. 

Fortunately, there is considerable waste heat available at the exhaust 

manifold of your Engine to supplant some of this cost. Additional heat 

is also required in order to re-arrange the molecules back into fuel, 

this is where a stream of hydrogen from an out side source such as your 

gasifier will help, as will super heated distilled water. The 

additional heat can be provided by a plasma produced by an arc or an 

electrode less plasma produced by Electromagnetic means. nothing more 

than 2kw. 















GF  



















-----Original Message-----



From: J?r?mie Biton 



To: gasification 



Sent: Wed, Aug 17, 2011 9:45 am



Subject: [Gasification] CO2 emission of whole system for smaall size 

generator (20kWe)



















Hello to all,



 



Does anybody have an idea of the CO2 emission after generator?



For comparison, a diesel generator of this size (20kWe) has a rate of 

about 1,1 kgeqCO2/kWh.



 



Thanks 



Regards



 



Jeremy











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Message: 2



Date: Thu, 18 Aug 2011 08:46:39 +0200



From: Arnt Karlsen 



To: gasification at lists.bioenergylists.org



Subject: Re: [Gasification] CO2 emission of whole system for smaall



size generator (20kWe)



Message-ID: 



Content-Type: text/plain; charset=US-ASCII







On Wed, 17 Aug 2011 21:04:26 -0400 (EDT), GF wrote in message 



:







> 



> It is a little known fact that CO2 can be converted into Methane.



> Years ago this was expensive 







..still is: 



http://en.wikipedia.org/wiki/Methane#Atmospheric_methane







-- 



..med vennlig hilsen = with Kind Regards from Arnt Karlsen



...with a number of polar bear hunters in his ancestry...



 Scenarios always come in sets of three: 



 best case, worst case, and just in case.















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Message: 3



Date: Wed, 17 Aug 2011 21:38:05 -0400



From: Thomas Reed 



To: Discussion of biomass pyrolysis and gasification







Cc: ""







Subject: Re: [Gasification] CO2 emission of whole system for smaall



sizegenerator (20kWe)



Message-ID: 



Content-Type: text/plain; charset="utf-8"







Jeremy and all







Both gasoline and diesel are approximately -CH2- chained together. 

Their combustion can be written



 



CH2 + 3/2(O2 + 3.76 N2) ==> CO2 + H2O + 5.64 N2



M 14.                    44.   18      158.       220







So the all important Air/Fuel, A/F ratio is 220 /14= 15.7







The ratio is often given as 14.7. Maybe this is due to the presence of 

unsaturated and aromatics with lower H/C ratios.







The oxygen sensor is capable of measuring very small amounts of 

unburned fuel or oxygen in the exhaust and adjusting the A/F ratio for 

perfect combustion. 







Diesel combustion is always lean.







Lucky us that our cars are so clean.







Tom Reed















On Aug 17, 2011, at 9:44 AM, J?r?mie Biton  wrote:







> Hello to all,



> 



> 



> 



> Does anybody have an idea of the CO2 emission after generator?



> 



> For comparison, a diesel generator of this size (20kWe) has a rate of 

about 1,1 kgeqCO2/kWh.



> 



> 



> 



> Thanks



> 



> Regards



> 



> 



> 



> Jeremy



> 



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> 



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End of Gasification Digest, Vol 12, Issue 13



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