[Gasification] How much ton of biomass will burn to produce 1 ton of CO2?
juan.moreno at umag.cl
juan.moreno at umag.cl
Mon Mar 25 15:05:19 CDT 2013
Considering a typical biomass moisture and ash free; one mol of it would
have the formula C (1) H (1.4) or (0.6) and this produces mol 0.3 mol CO2.
Considering this situation, one can estimate that one ton of CO2 is
produced by 1.91 tons of biomass.
JC
ing speculative based on some known facts, I would assume that since 1
> ton of biomass (based on Ideal Gasifiction (NOT "syngas", but rather
> "woodgas" or "producer gas", an average of small gasifiers is a common CO2
> output of approximately 11 to 30 % by volume (See sample GCMS report
> below)
>
> It would be a qualified guess to say, 7 to 8 tons of biomass, BASED on
> reasonable gasification of the said biomass. I am
> NOT considering incineration, ONLY "home made" gasification.
>
> Greg Manning,
> www.cangas.ca
>
> ==========================================
>
>
> | RT | Compound Name | Amount |
>
> | (min) | | % |
>
> -------------------------------------------
>
> | 1.164|hydrogen | 11.22 |
>
> | 2.251|C7+ | 0.03 |
>
> | 2.399|carbon dioxide | 12.79 |
>
> | 3.209|methane | 1.06 |
>
> | 3.347|ethane | 0.06 |
>
> | 3.473|ethylene | 0.18 |
>
> | 3.857|propane | 0.01 |
>
> | 0.000|cyclopropane | 0.00 |
>
> | 4.537|propylene | 0.04 |
>
> | 4.935|acetylene | 0.00 |
>
> | 5.138|isobutane | 0.00 |
>
> | 5.191|propadiene | 0.00 |
>
> | 5.326|n-butane | 0.00 |
>
> | 0.000|hydrogen sulfide | 0.00 |
>
> | 6.280|t-2 butene | 0.00 |
>
> | 6.362|1-butene | 0.00 |
>
> | 6.536|isobutylene | 0.00 |
>
> | 6.701|c-2-butene | 0.00 |
>
> | 0.000|isopentane | 0.00 |
>
> | 7.407|n-pentane | 0.00 |
>
> | 7.579|1,3 butadiene | 0.01 |
>
> | 7.807|argon-oxygen | 6.84 |
>
> | 7.961|3-methyl-1-butene | 0.00 |
>
> | 8.090|t-2-pentene | 0.00 |
>
> | 8.155|nitrogen | 61.36 |
>
> | 8.240|2-methyl-2-butene | 0.00 |
>
> | 8.296|1-pentene | 0.00 |
>
> | 8.338|2-methyl-1-butene | 0.00 |
>
> | 8.453|c-2-pentene | 0.00 |
>
> | 9.250|C6+ | 0.02 |
>
> | 9.886|carbon monoxide | 6.37 |
>
>
>
> Total 100.00
>
>
>
> ==========================================
>
> On Fri, Aug 19, 2011 at 12:35 PM, A.Saravanakumar
> <sara_mnes at rediffmail.com>wrote:
>
>> 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)
>>
>>
>>
>>
>>
>> ----------------------------------------------------------------------
>>
>>
>>
>> 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: <8CE2B59E894A95D-1C20-23C51 at Webmail-m104.sysops.aol.com>
>>
>> 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: <20110818084639.0748c1ee at celsius.lan>
>>
>> Content-Type: text/plain; charset=US-ASCII
>>
>>
>>
>> On Wed, 17 Aug 2011 21:04:26 -0400 (EDT), GF wrote in message
>>
>> <8CE2B59E894A95D-1C20-23C51 at Webmail-m104.sysops.aol.com>:
>>
>>
>>
>> >
>>
>> > 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.
>>
>>
>>
>>
>>
>>
>>
>> ------------------------------
>>
>>
>>
>> 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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