[Gasification] Regarding Combustion Quality of Producer gas
Greg Manning
a31ford at gmail.com
Fri Oct 12 19:53:10 CDT 2012
Hi Tom, Vikrant, and all.
I aggree with Tom here, the "so to speak" octane rating of PG is much
higher than petrol (gasoline).
Instead of trying to re-invent the wheel here, many people conver a diesel
to a spark ignition engine, and THEN run it as a high compression engine
that is GREAT for PG, 17 to 1 is a common compression ratio in a diesel.
this is the simplest conversion that I know of, that will get you a great
engine, ideally configured to run PG.
To put this into perspective, replace the injectors with sparkplug adaptor
bushings, and the injector pump, with a bushing and gear configuration to
run an electronic distributor,
I have heard that the volvo distributor will drop into the diesel version
of the same engine, what model or series, or age for that matter I have no
idea, I do have a video of a friend over in Eruope that has done this
conversion to a volvo powered tractor, the video is more on the "going to
get a supply of wood" than the actual components, but could dig up his
phone number if needed (might take a while), the video I have in my
documents on the comupter, so could put that on a site quickly if you want.
let me know,
Greg Manning
On Fri, Oct 12, 2012 at 5:15 PM, Thomas Reed <tombreed2010 at gmail.com> wrote:
> Dear Greg and all
>
> Producer gas from wood tends to contain 21% CO as well as 19% H2 (And ~
> 4%methane, CH4).
>
> The heat of combustion of both is about 270 BTU/scf, so don't forget or
> downgrade the CO content. CO has the lowest flame velocity of any fuel gas,
> but H2 is about 5X most other gases, so the combination of H2, CO and CH4
> (1,000 Btu/acf) burns reasonably well (but don't breathe too much of it).
>
> <><><>
>
> "Octane" is a measure of the degree to which a gas-air mixture can be
> compressed before it pre-ignites. Typically the CR of gasoline is ~ 9/1,
> and the Octane is ~ 90, and in general required octane = 10X CR.
>
> The power and efficiency of IC engines is directly proportional to CR and
> hence to octane.
>
> With 50% N2, the octane of producer gas is around 180! So you can
> increase the CR of engines using PG to 18/1 and double the power and
> efficiency.
>
> <><><>
>
> Modern engines use knock sensors/timing to increase combustion efficiency
> by operating just below the knock limit. I presume that this would greatly
> increase power and efficiency of PG, but I don't know if they could
> increase CR enough to accomodate PG.
>
> Opinions?
>
> Onward...
>
> Tom Reed
>
>
> On Oct 11, 2012, at 6:46 AM, Greg Manning <a31ford at gmail.com> wrote:
>
> Greetings Vikrant,
>
> Generally, when talking about the quality of producer gas (PG) we talk of
> the percentage of Hydrogen (H2), natural air driven systems range from 6%
> H2, to good quality systems that produce upwards of 30% H2 content.
>
> If one moves to a oxygen based system (SG) Synthisis Gas, the H2 content
> pushes the 60% and up level, If one moves to externally driven systems, I
> am told they are even higher than that.
> <><><>
>
>
>
>
>
> Greg Manning
> Canadian Gasifier Ltd.
>
>
> On Thu, Oct 11, 2012 at 1:51 AM, vikrant bhalerao <
> vikrantbhalerao12 at gmail.com> wrote:
>
>> Hi,
>>
>> I have a question regarding combustion quality of PG.
>> When we talk about natural gas, in short 'Methane index/Methane Number'
>> provide combustion quality. For gasolin/petrol it is 'octane rating'. Can
>> we use 'Methane number' as indicator for PG also ??
>>
>> Thanks
>> With Regards,
>> Vikrant Bhalerao
>> Cummins India Ltd.
>> Mobile +91 89 833 20 725
>>
>>
>>
>>
>> On Thu, Oct 11, 2012 at 12:30 AM, <
>> gasification-request at lists.bioenergylists.org> wrote:
>>
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>>>
>>> Today's Topics:
>>>
>>> 1. Small scale power plants? (Kenny Redd)
>>> 2. Small scale power plants? (doug.williams)
>>> 3. Small scale power plants? (doug.williams)
>>> 4. Gasification of Corn cob (masi karuppu)
>>> 5. Re: Gasification of Corn cob (Thomas Reed)
>>> 6. Re: Small scale power plants? (Thomas Reed)
>>> 7. Re: Small scale power plants? (Thomas Reed)
>>> 8. Re: Gasification of Corn cob (Darius)
>>> 9. Re: Small scale power plants? (Kenny Redd)
>>> 10. Re: Small scale power plants? (Kenny Redd)
>>> 11. Re: Small scale power plants? (Phil Marsh)
>>> 12. Re: Gasification of Corn cob (Kevin)
>>>
>>>
>>> ----------------------------------------------------------------------
>>>
>>> Message: 1
>>> Date: Tue, 9 Oct 2012 22:42:28 -0500
>>> From: Kenny Redd <kenredd at gmail.com>
>>> To: Gasification at bioenergylists.org
>>> Subject: [Gasification] Small scale power plants?
>>> Message-ID:
>>> <
>>> CAD9Lsq5hEUS4tV2d-NLXy7RG+ZBrmSPu_EaeH18Mf-m3Vyokeg at mail.gmail.com>
>>> Content-Type: text/plain; charset="iso-8859-1"
>>>
>>> I tip my hat to bioenergylists.org
>>>
>>> Is anyone aware of a US commercial producer of small-scale, solid-fuel
>>> (bio-coal fired) power plants in the 1 to 20 MW range?
>>>
>>> Thanks for all assistance.
>>>
>>> Kenny Redd
>>> Inova Energy LLC
>>> -------------- next part --------------
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>>> >
>>>
>>> ------------------------------
>>>
>>> Message: 2
>>> Date: Wed, 10 Oct 2012 18:35:51 +1300
>>> From: "doug.williams" <Doug.Williams at orcon.net.nz>
>>> To: "Discussion of biomass pyrolysis and gasification"
>>> <gasification at lists.bioenergylists.org>,
>>> <Gasification at bioenergylists.org>
>>> Subject: [Gasification] Small scale power plants?
>>> Message-ID: <84694C38CDD54725928D1713D37DE21F at dougspc>
>>> Content-Type: text/plain; charset="iso-8859-1"
>>>
>>> Hi Kenny,
>>>
>>> You ask:
>>>
>>> Is anyone aware of a US commercial producer of small-scale, solid-fuel
>>> (bio-coal fired) power plants in the 1 to 20 MW range?
>>>
>>> Please define your version of bio-coal, as it can have differing
>>> interpretations. It suggests charcoal, if so, one might expect for you to
>>> consider a number of options. Tell us more. because there is a huge gap
>>> between raw and "pre-charred" fuel gasification. Your range of outputs
>>> stretch credibility to supply a pre-carbonized fuel for 20MWe, so what is
>>> the direction of your enquiry? Possibly you are researching the
>>> capabilities of the technology, but 1-20MWe is rather big when discussing
>>> biomass gasification systems. You might also comment on the end use of the
>>> gas, boiler of engine power generation?
>>>
>>> This forum has an affinity with discussing these issues, because the
>>> future needs what we may be able to do, given the right challenges, and
>>> your question should trigger off comment from the accumulated expertise.
>>>
>>> Doug Williams,
>>> Fluidyne.
>>> -------------- next part --------------
>>> An HTML attachment was scrubbed...
>>> URL: <
>>> http://lists.bioenergylists.org/pipermail/gasification_lists.bioenergylists.org/attachments/20121010/18ff77af/attachment-0002.html
>>> >
>>>
>>> ------------------------------
>>>
>>> Message: 3
>>> Date: Wed, 10 Oct 2012 18:35:51 +1300
>>> From: "doug.williams" <Doug.Williams at orcon.net.nz>
>>> To: "Discussion of biomass pyrolysis and gasification"
>>> <gasification at lists.bioenergylists.org>,
>>> <Gasification at bioenergylists.org>
>>> Subject: [Gasification] Small scale power plants?
>>> Message-ID: <84694C38CDD54725928D1713D37DE21F at dougspc>
>>> Content-Type: text/plain; charset="iso-8859-1"
>>>
>>> Hi Kenny,
>>>
>>> You ask:
>>>
>>> Is anyone aware of a US commercial producer of small-scale, solid-fuel
>>> (bio-coal fired) power plants in the 1 to 20 MW range?
>>>
>>> Please define your version of bio-coal, as it can have differing
>>> interpretations. It suggests charcoal, if so, one might expect for you to
>>> consider a number of options. Tell us more. because there is a huge gap
>>> between raw and "pre-charred" fuel gasification. Your range of outputs
>>> stretch credibility to supply a pre-carbonized fuel for 20MWe, so what is
>>> the direction of your enquiry? Possibly you are researching the
>>> capabilities of the technology, but 1-20MWe is rather big when discussing
>>> biomass gasification systems. You might also comment on the end use of the
>>> gas, boiler of engine power generation?
>>>
>>> This forum has an affinity with discussing these issues, because the
>>> future needs what we may be able to do, given the right challenges, and
>>> your question should trigger off comment from the accumulated expertise.
>>>
>>> Doug Williams,
>>> Fluidyne.
>>> -------------- next part --------------
>>> An HTML attachment was scrubbed...
>>> URL: <
>>> http://lists.bioenergylists.org/pipermail/gasification_lists.bioenergylists.org/attachments/20121010/18ff77af/attachment-0003.html
>>> >
>>>
>>> ------------------------------
>>>
>>> Message: 4
>>> Date: Wed, 10 Oct 2012 14:32:43 +0530
>>> From: masi karuppu <masikaruppu at gmail.com>
>>> To: Gasification at bioenergylists.org
>>> Subject: [Gasification] Gasification of Corn cob
>>> Message-ID:
>>> <
>>> CAEDEmzDtssbbL7VHdr7GKgruuYWrfK9DaXRhbCcoegvyxnhYhw at mail.gmail.com>
>>> Content-Type: text/plain; charset=ISO-8859-1
>>>
>>> Dear Sir,
>>>
>>> I would like to know about the operating performance of a gasifier
>>> which works on Corn cob as fuel input.
>>>
>>> Thanks and regards
>>> K.Subramaniam
>>>
>>>
>>>
>>> ------------------------------
>>>
>>> Message: 5
>>> Date: Wed, 10 Oct 2012 09:19:35 -0400
>>> From: Thomas Reed <tombreed2010 at gmail.com>
>>> To: Discussion of biomass pyrolysis and gasification
>>> <gasification at lists.bioenergylists.org>
>>> Subject: Re: [Gasification] Gasification of Corn cob
>>> Message-ID: <BA4B42AD-C053-4789-98F9-AD38EF8B236F at gmail.com>
>>> Content-Type: text/plain; charset=us-ascii
>>>
>>> Dear Masi
>>>
>>> I have never run a gasifier on corn cobs, but I believe they would be an
>>> excellent fuel as long as the moisture content is <15%. Be sure to operate
>>> lighting the TOP of the pile so that the char sits above the unburned fuel.
>>>
>>> Write me -send a picture- if you can.
>>>
>>> Yours truly,
>>>
>>> Tom Reed
>>>
>>> Thomas B Reed
>>>
>>>
>>> On Oct 10, 2012, at 5:02 AM, masi karuppu <masikaruppu at gmail.com> wrote:
>>>
>>> > Dear Sir,
>>> >
>>> > I would like to know about the operating performance of a gasifier
>>> > which works on Corn cob as fuel input.
>>> >
>>> > Thanks and regards
>>> > K.Subramaniam
>>> >
>>> > _______________________________________________
>>> > Gasification mailing list
>>> >
>>> > to Send a Message to the list, use the email address
>>> > Gasification at bioenergylists.org
>>> >
>>> > to UNSUBSCRIBE or Change your List Settings use the web page
>>> >
>>> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org
>>> >
>>> > for more Gasifiers, News and Information see our web site:
>>> > http://gasifiers.bioenergylists.org/
>>>
>>>
>>>
>>> ------------------------------
>>>
>>> Message: 6
>>> Date: Wed, 10 Oct 2012 09:22:45 -0400
>>> From: Thomas Reed <tombreed2010 at gmail.com>
>>> To: "doug.williams" <Doug.Williams at orcon.net.nz>, Discussion of
>>> biomass pyrolysis and gasification
>>> <gasification at lists.bioenergylists.org>
>>> Cc: Discussion of biomass pyrolysis and gasification
>>> <gasification at lists.bioenergylists.org>,
>>> "<Gasification at bioenergylists.org>" <
>>> Gasification at bioenergylists.org>
>>> Subject: Re: [Gasification] Small scale power plants?
>>> Message-ID: <4BD28B36-55AE-4619-B1C3-DA40AD77AF2F at gmail.com>
>>> Content-Type: text/plain; charset="us-ascii"
>>>
>>> Biocoal isNOT charcoal! It contains 80% of the energy in the original
>>> wood, but is friable, easily compressed, briquettes or fired as a powder in
>>> utility boilers by itself or as an aid to better combustion of powdered
>>> coal.
>>>
>>> Tom Reed
>>>
>>> Thomas B Reed
>>>
>>>
>>> On Oct 10, 2012, at 1:35 AM, "doug.williams" <Doug.Williams at orcon.net.nz>
>>> wrote:
>>>
>>> > Hi Kenny,
>>> >
>>> > You ask:
>>> >
>>> > Is anyone aware of a US commercial producer of small-scale, solid-fuel
>>> (bio-coal fired) power plants in the 1 to 20 MW range?
>>> >
>>> > Please define your version of bio-coal, as it can have differing
>>> interpretations. It suggests charcoal, if so, one might expect for you to
>>> consider a number of options. Tell us more. because there is a huge gap
>>> between raw and "pre-charred" fuel gasification. Your range of outputs
>>> stretch credibility to supply a pre-carbonized fuel for 20MWe, so what is
>>> the direction of your enquiry? Possibly you are researching the
>>> capabilities of the technology, but 1-20MWe is rather big when discussing
>>> biomass gasification systems. You might also comment on the end use of the
>>> gas, boiler of engine power generation?
>>> >
>>> > This forum has an affinity with discussing these issues, because the
>>> future needs what we may be able to do, given the right challenges, and
>>> your question should trigger off comment from the accumulated expertise.
>>> >
>>> > Doug Williams,
>>> > Fluidyne.
>>> > _______________________________________________
>>> > Gasification mailing list
>>> >
>>> > to Send a Message to the list, use the email address
>>> > Gasification at bioenergylists.org
>>> >
>>> > to UNSUBSCRIBE or Change your List Settings use the web page
>>> >
>>> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org
>>> >
>>> > for more Gasifiers, News and Information see our web site:
>>> > http://gasifiers.bioenergylists.org/
>>> -------------- next part --------------
>>> An HTML attachment was scrubbed...
>>> URL: <
>>> http://lists.bioenergylists.org/pipermail/gasification_lists.bioenergylists.org/attachments/20121010/a87f66c5/attachment-0002.html
>>> >
>>>
>>> ------------------------------
>>>
>>> Message: 7
>>> Date: Wed, 10 Oct 2012 09:22:45 -0400
>>> From: Thomas Reed <tombreed2010 at gmail.com>
>>> To: "doug.williams" <Doug.Williams at orcon.net.nz>, Discussion of
>>> biomass pyrolysis and gasification
>>> <gasification at lists.bioenergylists.org>
>>> Cc: Discussion of biomass pyrolysis and gasification
>>> <gasification at lists.bioenergylists.org>,
>>> "<Gasification at bioenergylists.org>" <
>>> Gasification at bioenergylists.org>
>>> Subject: Re: [Gasification] Small scale power plants?
>>> Message-ID: <4BD28B36-55AE-4619-B1C3-DA40AD77AF2F at gmail.com>
>>> Content-Type: text/plain; charset="us-ascii"
>>>
>>> Biocoal isNOT charcoal! It contains 80% of the energy in the original
>>> wood, but is friable, easily compressed, briquettes or fired as a powder in
>>> utility boilers by itself or as an aid to better combustion of powdered
>>> coal.
>>>
>>> Tom Reed
>>>
>>> Thomas B Reed
>>>
>>>
>>> On Oct 10, 2012, at 1:35 AM, "doug.williams" <Doug.Williams at orcon.net.nz>
>>> wrote:
>>>
>>> > Hi Kenny,
>>> >
>>> > You ask:
>>> >
>>> > Is anyone aware of a US commercial producer of small-scale, solid-fuel
>>> (bio-coal fired) power plants in the 1 to 20 MW range?
>>> >
>>> > Please define your version of bio-coal, as it can have differing
>>> interpretations. It suggests charcoal, if so, one might expect for you to
>>> consider a number of options. Tell us more. because there is a huge gap
>>> between raw and "pre-charred" fuel gasification. Your range of outputs
>>> stretch credibility to supply a pre-carbonized fuel for 20MWe, so what is
>>> the direction of your enquiry? Possibly you are researching the
>>> capabilities of the technology, but 1-20MWe is rather big when discussing
>>> biomass gasification systems. You might also comment on the end use of the
>>> gas, boiler of engine power generation?
>>> >
>>> > This forum has an affinity with discussing these issues, because the
>>> future needs what we may be able to do, given the right challenges, and
>>> your question should trigger off comment from the accumulated expertise.
>>> >
>>> > Doug Williams,
>>> > Fluidyne.
>>> > _______________________________________________
>>> > Gasification mailing list
>>> >
>>> > to Send a Message to the list, use the email address
>>> > Gasification at bioenergylists.org
>>> >
>>> > to UNSUBSCRIBE or Change your List Settings use the web page
>>> >
>>> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org
>>> >
>>> > for more Gasifiers, News and Information see our web site:
>>> > http://gasifiers.bioenergylists.org/
>>> -------------- next part --------------
>>> An HTML attachment was scrubbed...
>>> URL: <
>>> http://lists.bioenergylists.org/pipermail/gasification_lists.bioenergylists.org/attachments/20121010/a87f66c5/attachment-0003.html
>>> >
>>>
>>> ------------------------------
>>>
>>> Message: 8
>>> Date: Wed, 10 Oct 2012 20:14:19 +0700
>>> From: Darius <darius_tamizi at hotmail.com>
>>> To: Discussion of biomass pyrolysis and gasification
>>> <gasification at lists.bioenergylists.org>
>>> Subject: Re: [Gasification] Gasification of Corn cob
>>> Message-ID: <BLU0-SMTP1115A4D5FC27DBA64823C4E8A8E0 at phx.gbl>
>>> Content-Type: text/plain; charset="ISO-8859-1"; format=flowed
>>>
>>> As long as the corb is dry, it produce almost the same gas quality as
>>> wood, but you need to add the corb 2 times more quick than wood.
>>>
>>> Regards,
>>>
>>> Darius
>>>
>>> On 10/10/2012 8:19 PM, Thomas Reed wrote:
>>> > Dear Masi
>>> >
>>> > I have never run a gasifier on corn cobs, but I believe they would be
>>> an excellent fuel as long as the moisture content is <15%. Be sure to
>>> operate lighting the TOP of the pile so that the char sits above the
>>> unburned fuel.
>>> >
>>> > Write me -send a picture- if you can.
>>> >
>>> > Yours truly,
>>> >
>>> > Tom Reed
>>> >
>>> > Thomas B Reed
>>> >
>>> >
>>> > On Oct 10, 2012, at 5:02 AM, masi karuppu <masikaruppu at gmail.com>
>>> wrote:
>>> >
>>> >> Dear Sir,
>>> >>
>>> >> I would like to know about the operating performance of a gasifier
>>> >> which works on Corn cob as fuel input.
>>> >>
>>> >> Thanks and regards
>>> >> K.Subramaniam
>>> >>
>>> >> _______________________________________________
>>> >> Gasification mailing list
>>> >>
>>> >> to Send a Message to the list, use the email address
>>> >> Gasification at bioenergylists.org
>>> >>
>>> >> to UNSUBSCRIBE or Change your List Settings use the web page
>>> >>
>>> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org
>>> >>
>>> >> for more Gasifiers, News and Information see our web site:
>>> >> http://gasifiers.bioenergylists.org/
>>> > _______________________________________________
>>> > Gasification mailing list
>>> >
>>> > to Send a Message to the list, use the email address
>>> > Gasification at bioenergylists.org
>>> >
>>> > to UNSUBSCRIBE or Change your List Settings use the web page
>>> >
>>> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org
>>> >
>>> > for more Gasifiers, News and Information see our web site:
>>> > http://gasifiers.bioenergylists.org/
>>> >
>>> >
>>>
>>>
>>>
>>>
>>> ------------------------------
>>>
>>> Message: 9
>>> Date: Wed, 10 Oct 2012 09:34:02 -0500
>>> From: Kenny Redd <kenredd at gmail.com>
>>> To: "doug.williams" <Doug.Williams at orcon.net.nz>, Discussion of
>>> biomass pyrolysis and gasification
>>> <gasification at lists.bioenergylists.org>
>>> Subject: Re: [Gasification] Small scale power plants?
>>> Message-ID:
>>> <CAD9Lsq6Jnf3OprF=QAP6=HpCf9AmNO3CCey=
>>> dj9OX2DHYu4yhw at mail.gmail.com>
>>> Content-Type: text/plain; charset="iso-8859-1"
>>>
>>> Thanks Doug and Tom for responding to my inquiry,
>>>
>>> A little clarity is in order. I am a designer for an R&D company that
>>> tends to contract to Federal agencies. I have discussions with top level
>>> decision makers within the company. I have pointed out the US Army's
>>> seven
>>> billion dollar energy acqusition program and have suggested that my
>>> employer consider a Power Producing Agreement (PPA) with the Army. I
>>> have
>>> suggested that Federal lands provide the space for biofuel crops. These
>>> crops would ultimately be converted via pyrolysis to a coal surrogate
>>> that
>>> can be handled like fossil coal. However, the PPA power would likely
>>> have
>>> to be distributed in a decentralized, on-site fashion and on a scale much
>>> smaller than the typical gigawatt power plant.
>>>
>>> It's not my interest to employ gasification as the fuel product, but as
>>> part of the process to produce a transportable, exportable, friable,
>>> solid
>>> fuel from the feedstocks. My review of the gasification industry shows
>>> that the technology for producing the "bio-coal" is mature and readily
>>> available. However, it doesn't appear there are small scale,
>>> power-plants
>>> suitable for on-site power production. Any suggestions?
>>>
>>> Thanks again, and Bioenergylists is one of the best forums on the web.
>>>
>>>
>>>
>>>
>>> On Wed, Oct 10, 2012 at 12:35 AM, doug.williams
>>> <Doug.Williams at orcon.net.nz>wrote:
>>>
>>> > **
>>> > *Hi Kenny,*
>>> > **
>>> > *You ask*:
>>> >
>>> > Is anyone aware of a US commercial producer of small-scale, solid-fuel
>>> > (bio-coal fired) power plants in the 1 to 20 MW range?
>>> >
>>> > *Please define your version of bio-coal, as it can have differing
>>> > interpretations. It suggests charcoal, if so, one might expect for you
>>> to
>>> > consider a number of options. **Tell us more. because there is a huge
>>> gap
>>> > between raw and "pre-charred" fuel gasification. Your range of outputs
>>> > stretch credibility to supply a pre-carbonized fuel for 20MWe, so what
>>> is
>>> > the direction of your enquiry? Possibly you are researching the
>>> > capabilities of the technology, but 1-20MWe is rather big when
>>> discussing
>>> > biomass gasification systems. You might also comment on the end use of
>>> the
>>> > gas, boiler of engine power generation? *
>>> > **
>>> > *This forum has an affinity with discussing these issues, because the
>>> > future needs what we may be able to do, given the right challenges, and
>>> > your question should trigger off comment from the accumulated
>>> expertise.*
>>> > **
>>> > *Doug Williams,*
>>> > *Fluidyne.*
>>> >
>>> > _______________________________________________
>>> > Gasification mailing list
>>> >
>>> > to Send a Message to the list, use the email address
>>> > Gasification at bioenergylists.org
>>> >
>>> > to UNSUBSCRIBE or Change your List Settings use the web page
>>> >
>>> >
>>> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org
>>> >
>>> > for more Gasifiers, News and Information see our web site:
>>> > http://gasifiers.bioenergylists.org/
>>> >
>>> >
>>> -------------- next part --------------
>>> An HTML attachment was scrubbed...
>>> URL: <
>>> http://lists.bioenergylists.org/pipermail/gasification_lists.bioenergylists.org/attachments/20121010/1db7c8e1/attachment-0002.html
>>> >
>>>
>>> ------------------------------
>>>
>>> Message: 10
>>> Date: Wed, 10 Oct 2012 09:34:02 -0500
>>> From: Kenny Redd <kenredd at gmail.com>
>>> To: "doug.williams" <Doug.Williams at orcon.net.nz>, Discussion of
>>> biomass pyrolysis and gasification
>>> <gasification at lists.bioenergylists.org>
>>> Subject: Re: [Gasification] Small scale power plants?
>>> Message-ID:
>>> <CAD9Lsq6Jnf3OprF=QAP6=HpCf9AmNO3CCey=
>>> dj9OX2DHYu4yhw at mail.gmail.com>
>>> Content-Type: text/plain; charset="iso-8859-1"
>>>
>>> Thanks Doug and Tom for responding to my inquiry,
>>>
>>> A little clarity is in order. I am a designer for an R&D company that
>>> tends to contract to Federal agencies. I have discussions with top level
>>> decision makers within the company. I have pointed out the US Army's
>>> seven
>>> billion dollar energy acqusition program and have suggested that my
>>> employer consider a Power Producing Agreement (PPA) with the Army. I
>>> have
>>> suggested that Federal lands provide the space for biofuel crops. These
>>> crops would ultimately be converted via pyrolysis to a coal surrogate
>>> that
>>> can be handled like fossil coal. However, the PPA power would likely
>>> have
>>> to be distributed in a decentralized, on-site fashion and on a scale much
>>> smaller than the typical gigawatt power plant.
>>>
>>> It's not my interest to employ gasification as the fuel product, but as
>>> part of the process to produce a transportable, exportable, friable,
>>> solid
>>> fuel from the feedstocks. My review of the gasification industry shows
>>> that the technology for producing the "bio-coal" is mature and readily
>>> available. However, it doesn't appear there are small scale,
>>> power-plants
>>> suitable for on-site power production. Any suggestions?
>>>
>>> Thanks again, and Bioenergylists is one of the best forums on the web.
>>>
>>>
>>>
>>>
>>> On Wed, Oct 10, 2012 at 12:35 AM, doug.williams
>>> <Doug.Williams at orcon.net.nz>wrote:
>>>
>>> > **
>>> > *Hi Kenny,*
>>> > **
>>> > *You ask*:
>>> >
>>> > Is anyone aware of a US commercial producer of small-scale, solid-fuel
>>> > (bio-coal fired) power plants in the 1 to 20 MW range?
>>> >
>>> > *Please define your version of bio-coal, as it can have differing
>>> > interpretations. It suggests charcoal, if so, one might expect for you
>>> to
>>> > consider a number of options. **Tell us more. because there is a huge
>>> gap
>>> > between raw and "pre-charred" fuel gasification. Your range of outputs
>>> > stretch credibility to supply a pre-carbonized fuel for 20MWe, so what
>>> is
>>> > the direction of your enquiry? Possibly you are researching the
>>> > capabilities of the technology, but 1-20MWe is rather big when
>>> discussing
>>> > biomass gasification systems. You might also comment on the end use of
>>> the
>>> > gas, boiler of engine power generation? *
>>> > **
>>> > *This forum has an affinity with discussing these issues, because the
>>> > future needs what we may be able to do, given the right challenges, and
>>> > your question should trigger off comment from the accumulated
>>> expertise.*
>>> > **
>>> > *Doug Williams,*
>>> > *Fluidyne.*
>>> >
>>> > _______________________________________________
>>> > Gasification mailing list
>>> >
>>> > to Send a Message to the list, use the email address
>>> > Gasification at bioenergylists.org
>>> >
>>> > to UNSUBSCRIBE or Change your List Settings use the web page
>>> >
>>> >
>>> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org
>>> >
>>> > for more Gasifiers, News and Information see our web site:
>>> > http://gasifiers.bioenergylists.org/
>>> >
>>> >
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>>> >
>>>
>>> ------------------------------
>>>
>>> Message: 11
>>> Date: Wed, 10 Oct 2012 07:37:21 -0700
>>> From: "Phil Marsh" <marshbros at mcbridebc.com>
>>> To: "'Discussion of biomass pyrolysis and gasification'"
>>> <gasification at lists.bioenergylists.org>
>>> Subject: Re: [Gasification] Small scale power plants?
>>> Message-ID: <000001cda6f4$c21094b0$4631be10$@com>
>>> Content-Type: text/plain; charset="utf-8"
>>>
>>> Dear Dr. Reed:
>>>
>>>
>>>
>>> Why is charcoal not just a specific type of biocoal? (as in biocoal made
>>> from wood) Or are you specifically saying biocoal is a term only used to
>>> describe a product that is torrefied as opposed to fully carbonized as a
>>> standard version of charcoal would be?
>>>
>>>
>>>
>>> Phil Marsh
>>>
>>> Marshbros.
>>>
>>> 250 569-7858
>>>
>>>
>>>
>>> From: Gasification [mailto:gasification-bounces at lists.bioenergylists.org]
>>> On Behalf Of Thomas Reed
>>> Sent: October-10-12 6:23 AM
>>> To: doug.williams; Discussion of biomass pyrolysis and gasification
>>> Cc: Discussion of biomass pyrolysis and gasification; <
>>> Gasification at bioenergylists.org>
>>> Subject: Re: [Gasification] Small scale power plants?
>>>
>>>
>>>
>>> Biocoal isNOT charcoal! It contains 80% of the energy in the original
>>> wood, but is friable, easily compressed, briquettes or fired as a powder in
>>> utility boilers by itself or as an aid to better combustion of powdered
>>> coal.
>>>
>>>
>>>
>>> Tom Reed
>>>
>>> Thomas B Reed
>>>
>>>
>>>
>>>
>>>
>>>
>>> On Oct 10, 2012, at 1:35 AM, "doug.williams" <Doug.Williams at orcon.net.nz>
>>> wrote:
>>>
>>> Hi Kenny,
>>>
>>>
>>>
>>> You ask:
>>>
>>>
>>> Is anyone aware of a US commercial producer of small-scale, solid-fuel
>>> (bio-coal fired) power plants in the 1 to 20 MW range?
>>>
>>> Please define your version of bio-coal, as it can have differing
>>> interpretations. It suggests charcoal, if so, one might expect for you to
>>> consider a number of options. Tell us more. because there is a huge gap
>>> between raw and "pre-charred" fuel gasification. Your range of outputs
>>> stretch credibility to supply a pre-carbonized fuel for 20MWe, so what is
>>> the direction of your enquiry? Possibly you are researching the
>>> capabilities of the technology, but 1-20MWe is rather big when discussing
>>> biomass gasification systems. You might also comment on the end use of the
>>> gas, boiler of engine power generation?
>>>
>>>
>>>
>>> This forum has an affinity with discussing these issues, because the
>>> future needs what we may be able to do, given the right challenges, and
>>> your question should trigger off comment from the accumulated expertise.
>>>
>>>
>>>
>>> Doug Williams,
>>>
>>> Fluidyne.
>>>
>>> _______________________________________________
>>> Gasification mailing list
>>>
>>> to Send a Message to the list, use the email address
>>> Gasification at bioenergylists.org
>>>
>>> to UNSUBSCRIBE or Change your List Settings use the web page
>>>
>>> http://lists.bioenergylists.org/mailman/listinfo/gasification_lists.bioenergylists.org
>>>
>>> for more Gasifiers, News and Information see our web site:
>>> http://gasifiers.bioenergylists.org/
>>>
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>>> >
>>>
>>> ------------------------------
>>>
>>> Message: 12
>>> Date: Wed, 10 Oct 2012 11:43:32 -0300
>>> From: "Kevin" <kchisholm at ca.inter.net>
>>> To: "Discussion of biomass pyrolysis and gasification"
>>> <gasification at lists.bioenergylists.org>
>>> Subject: Re: [Gasification] Gasification of Corn cob
>>> Message-ID: <8D2E38E8D32A47959238F410FB90BDC8 at usera594fda0bf>
>>> Content-Type: text/plain; charset="iso-8859-1"
>>>
>>> Dear Tom
>>>
>>> I would agree with you that a Top Lit Updraft Gasifier, operated in a
>>> batch mode would be great for producing "Heating Grade Gas" (HGG), when
>>> there was a desire to also produce charcoal. However, if Masi was
>>> interested in maximum use of the corncobs for producing HGG, then a "top
>>> lit gasifier system" would not appear to be the best approach, because the
>>> charcoal left over would be undesirable. Additionally, there is the problem
>>> of a "batch operation."
>>>
>>> If Masi wanted a gasifier system to produce a woodgas suitable for
>>> powering an Internal Combustion engine, I cannot see how the Top Lit
>>> Gasifier could possibly produce an Engine Grade Gas. (EGG) I would suggest
>>> that it would have excessive tar, that would make it useless for fuelling
>>> an IC Engine. Additionally, there is the inherent problem of the batch
>>> nature of the TLUD gasifier.
>>>
>>> As I see it:
>>> 1: The TLUD gasifier is great for use with a close coupled burner
>>> system, where there is a wish to produce a residual charcoal, and where
>>> batch operation is acceptable.
>>> 2: A TLUD gasifier is not appropriate for producing Engine Grade Gas,
>>> because of an unacceptably high tar content.
>>> 3: A TLUD gasifier is not appropriate unless it is desired to produce a
>>> charcoal by-product.
>>>
>>> I might be missing something, but do you know of any way that a TLUD can
>>> produce engine Grade Gas?
>>>
>>> Best wishes,
>>>
>>> Kevin
>>>
>>> ----- Original Message -----
>>> From: "Thomas Reed" <tombreed2010 at gmail.com>
>>> To: "Discussion of biomass pyrolysis and gasification" <
>>> gasification at lists.bioenergylists.org>
>>> Sent: Wednesday, October 10, 2012 10:19 AM
>>> Subject: Re: [Gasification] Gasification of Corn cob
>>>
>>>
>>> > Dear Masi
>>> >
>>> > I have never run a gasifier on corn cobs, but I believe they would be
>>> an excellent fuel as long as the moisture content is <15%. Be sure to
>>> operate lighting the TOP of the pile so that the char sits above the
>>> unburned fuel.
>>> >
>>> > Write me -send a picture- if you can.
>>> >
>>> > Yours truly,
>>> >
>>> > Tom Reed
>>> >
>>> > Thomas B Reed
>>> >
>>> >
>>> > On Oct 10, 2012, at 5:02 AM, masi karuppu <masikaruppu at gmail.com>
>>> wrote:
>>> >
>>> >> Dear Sir,
>>> >>
>>> >> I would like to know about the operating performance of a gasifier
>>> >> which works on Corn cob as fuel input.
>>> >>
>>> >> Thanks and regards
>>> >> K.Subramaniam
>>> >>
>>> >> _______________________________________________
>>> >> Gasification mailing list
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>>> >>
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>>> >> http://gasifiers.bioenergylists.org/
>>> >
>>> > _______________________________________________
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>>>
>>> ------------------------------
>>>
>>> Subject: Digest Footer
>>>
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>>> ------------------------------
>>>
>>> End of Gasification Digest, Vol 26, Issue 6
>>> *******************************************
>>>
>>
>>
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