[Gasification] How much ton of biomass will burn to produce 1 ton of CO2?
Greg Manning
a31ford at gmail.com
Mon Mar 25 21:00:11 CDT 2013
Hi Tom, I'm sorry to say, that I've never sat down and figured it out, I
also do believe that MY "guestamate" on a ton of biomass basis was (and
still is) "WAY out in left field"...
But that is "typical" of me.
Greg Manning
On Mon, Mar 25, 2013 at 7:17 PM, Tom Reed <tombreed2010 at gmail.com> wrote:
> Dear Greg
>
> Thanks for the detailed analysis...
>
> I note that hydrogen, CO, CH4 Argon +O2 and N2 make up about 99% of the
> total. Interesting that there are so many other minor constituents
> requiring mass spec analysis, and probably missed by early analyses. Do
> you have a calculated energy content (kJ/m^3 or Btu/ft^3) for this
> particular analysis?
>
> Thanks a bunch..
>
> Tom Reed
>
> (aka)
>
> Dr. Thomas B Reed
> 280 Hardwick Rd
> Barre, MA 01005
>
> 508 353 7841
>
> On Mar 25, 2013, at 1:57 PM, Greg Manning <a31ford at gmail.com> wrote:Being
> 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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