[Digestion] "Bio-CNG" why not CBG?
Bingham
bingham at zekes.com
Tue Sep 11 11:38:45 EDT 2007
What is wrong with Compressed Bio Gas CBG?
Brent
----- Original Message -----
From: "Duncan Martin" <duncanjmartin at eircom.net>
To: "Daniel Musgrove" <dmusgrove at uesolutions.com>;
<digestion at listserv.repp.org>
Sent: Tuesday, September 11, 2007 7:04 AM
Subject: Re: [Digestion] "Bio-CNG"
>
> Let's just call it Compressed Biomethane.
>
> Biomethane is admirably clear but fails to distinguish between the
> compressed and low pressure varieties.
>
> GENERAL PRINCIPLES
> I would prefer to keep the terminology as clear and concrete as possible
> and
> to avoid abstractions and abbreviations, especially abbreviations that
> might
> be confusing.
>
> Concrete terminology is generally preferable. Abstractions such as
> "present
> era" will never be understood outside expert circles. Moreover, like the
> word "sustainable", they can be subverted to mean almost anything.
>
> The problem with any reference to CNG is that this term (and the word
> "natural") have been used for the equivalent fossil fuel for so long that
> it
> will be virtually impossible to get the desired distinction clear in the
> minds of the general public. Of course, biomethane is arguably even more
> "natural" than fossil "natural* gas" -- but the general public needs clear
> terminology that does not depend on the arguments of experts.
>
> (*This is a perfect example of how an abstract term can be quite
> ambiguous.
> Oxygen, nitrogen, carbon dioxide and dozens of other gases are also
> natural,
> either because they are "naturally" present in the atmosphere or because
> they are "natural" products of living organisms!)
>
> My thanks to whoever started this debate. It is really useful to get our
> ideas clarified, using the "wisdom of the crowd", before we start
> introducing new terminology. We will all help our shared cause if we can
> agree on common terminology.
>
> Duncan Martin
>
>
>
> ----- Original Message -----
> From: "Daniel Musgrove" <dmusgrove at uesolutions.com>
> To: <digestion at listserv.repp.org>
> Sent: Monday, September 10, 2007 3:37 PM
> Subject: Re: [Digestion] "Bio-CNG"
>
>
>> While out in the field, I'm already hearing reference to "bio-CNG", or
>> just
>> 'renewable CNG'. For example, I believe City of Los Angeles is getting
>> ready to study how to get their hands on 'renewable' forms of CNG or LNG
>> for
>> their bus and waste collection NGV fleets.
>>
>> I personally prefer "bio-CNG" - since in inherently refers back to the
>> fact
>> that it is a biologically produced form of methane. We already use
>> 'biomethane'. Why not stick with bioCNG?
>>
>> Daniel Musgrove
>> Universal Entech, LLC
>> 3330 West Broadway Road
>> Phoenix, AZ 85041
>> (602) 268-8849
>> dmusgrove at uesolutions.com
>>
>> -----Original Message-----
>> From: digestion-bounces at listserv.repp.org
>> [mailto:digestion-bounces at listserv.repp.org] On Behalf Of
>> digestion-request at listserv.repp.org
>> Sent: Sunday, September 09, 2007 6:25 PM
>> To: digestion at listserv.repp.org
>> Subject: Digestion Digest, Vol 15, Issue 11
>>
>> Send Digestion mailing list submissions to
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>>
>> Today's Topics:
>>
>> 1. Re: PE-CNG A better name! (Warren Weisman)
>> 2. Re: PE-CNG A better name! (Dr. Ann C. Wilkie)
>> 3. Re: PE-CNG A better name! (Katahdin Energy Works)
>> 4. request for information on available biogas technology
>> training (fest durojaiye)
>> 5. Biogas yields for tropical energy crops (Lou Dobb)
>> 6. Re: Biogas yields for tropical energy crops (Warren Weisman)
>> 7. Re: PE-CNG A better name! (Warren Weisman)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Sun, 9 Sep 2007 09:21:55 -0700 (PDT)
>> From: Warren Weisman <weiswar at yahoo.com>
>> Subject: Re: [Digestion] PE-CNG A better name!
>> To: Ken Calvert <renertech at xtra.co.nz>, digestion at listserv.repp.org
>> Message-ID: <229131.66940.qm at web62404.mail.re1.yahoo.com>
>> Content-Type: text/plain; charset=iso-8859-1
>>
>>
>> I think it was Alejandro who offered CBG and CNG. This
>> makes since unless CBG already stands for something
>> I'm not aware of?
>>
>> Warren Weisman
>> USA
>>
>>
>> --- Ken Calvert <renertech at xtra.co.nz> wrote:
>>
>>> What about 'Bio-CNG'??
>>>
>>> ----- Original Message -----
>>> From: "Jim and Amy Rankin" <ajrankin at westal.net>
>>> To: "Warren Weisman" <weiswar at yahoo.com>;
>>> <digestion at listserv.repp.org>
>>> Sent: Sunday, September 09, 2007 12:26 PM
>>> Subject: Re: [Digestion] PE-CNG and CNG
>>>
>>>
>>> >
>>> > Warren,
>>> > I would say if you feel "biogas" isn't
>>> descriptive, what about "Bio-CNG". I
>>> > think it would be more immediately recognisable
>>> than the "PE".
>>> >
>>> > Jim
>>> >
>>> > James R Rankin, DVM
>>> > Cedarcrest Farms, Inc
>>> > Faunsdale, AL USA
>>> >
>>> >
>>> >>
>>> >>
>>> >> I'm writing a grant for our biogas bus project
>>> and
>>> >> wanted to get the group's opinion on my use of
>>> the
>>> >> term PE-CNG for Present Era Compressed Natural
>>> Gas to
>>> >> distinguish compressed biogas from the already
>>> >> accepted term Compressed Natural Gas (CNG), or
>>> field
>>> >> gas, a fossil fuel. Let me know if this
>>> eliminates or
>>> >> adds to confusion.
>>> >
>>> >
>>> > _______________________________________________
>>> > Digestion mailing list
>>> > Digestion at listserv.repp.org
>>> >
>>>
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>> > Beginner's Guide to Biogas
>>> > http://www.adelaide.edu.au/biogas/
>>> > http://info.bioenergylists.org
>>> >
>>> _______________________________________________
>>> Digestion mailing list
>>> Digestion at listserv.repp.org
>>>
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>> Beginner's Guide to Biogas
>>> http://www.adelaide.edu.au/biogas/
>>> http://info.bioenergylists.org
>>>
>>
>>
>>
>>
>> ____________________________________________________________________________
>> ________
>> Shape Yahoo! in your own image. Join our Network Research Panel today!
>> http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7
>>
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Sun, 09 Sep 2007 13:04:14 -0400
>> From: "Dr. Ann C. Wilkie" <acwilkie at ufl.edu>
>> Subject: Re: [Digestion] PE-CNG A better name!
>> To: Warren Weisman <weiswar at yahoo.com>
>> Cc: digestion at listserv.repp.org
>> Message-ID: <46E4278E.7000308 at ufl.edu>
>> Content-Type: text/plain; charset=us-ascii; format=flowed
>>
>> All,
>>
>> How about RNG-renewable natural gas?
>>
>> _____________________
>> Warren Weisman wrote:
>>
>>> I think it was Alejandro who offered CBG and CNG. This
>>> makes since unless CBG already stands for something
>>> I'm not aware of?
>>>
>>> Warren Weisman
>>> USA
>>>
>>>
>>> --- Ken Calvert <renertech at xtra.co.nz> wrote:
>>>
>>>
>>>>What about 'Bio-CNG'??
>>>>
>>>>----- Original Message -----
>>>>From: "Jim and Amy Rankin" <ajrankin at westal.net>
>>>>To: "Warren Weisman" <weiswar at yahoo.com>;
>>>><digestion at listserv.repp.org>
>>>>Sent: Sunday, September 09, 2007 12:26 PM
>>>>Subject: Re: [Digestion] PE-CNG and CNG
>>>>
>>>>
>>>>
>>>>>Warren,
>>>>>I would say if you feel "biogas" isn't
>>>>
>>>>descriptive, what about "Bio-CNG". I
>>>>
>>>>>think it would be more immediately recognisable
>>>>
>>>>than the "PE".
>>>>
>>>>>Jim
>>>>>
>>>>>James R Rankin, DVM
>>>>>Cedarcrest Farms, Inc
>>>>>Faunsdale, AL USA
>>>>>
>>>>>
>>>>>
>>>>>>
>>>>>>I'm writing a grant for our biogas bus project
>>>>
>>>>and
>>>>
>>>>>>wanted to get the group's opinion on my use of
>>>>
>>>>the
>>>>
>>>>>>term PE-CNG for Present Era Compressed Natural
>>>>
>>>>Gas to
>>>>
>>>>>>distinguish compressed biogas from the already
>>>>>>accepted term Compressed Natural Gas (CNG), or
>>>>
>>>>field
>>>>
>>>>>>gas, a fossil fuel. Let me know if this
>>>>
>>>>eliminates or
>>>>
>>>>>>adds to confusion.
>>>>>
>>>>>
>>>>>_______________________________________________
>>>>>Digestion mailing list
>>>>>Digestion at listserv.repp.org
>>>>>
>>>>
>>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>>
>>>>>Beginner's Guide to Biogas
>>>>>http://www.adelaide.edu.au/biogas/
>>>>>http://info.bioenergylists.org
>>>>>
>>>>
>>>>_______________________________________________
>>>>Digestion mailing list
>>>>Digestion at listserv.repp.org
>>>>
>>>
>>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>>
>>>>Beginner's Guide to Biogas
>>>>http://www.adelaide.edu.au/biogas/
>>>>http://info.bioenergylists.org
>>>>
>>>
>>>
>>>
>>>
>>>
>> ____________________________________________________________________________
>> ________
>>> Shape Yahoo! in your own image. Join our Network Research Panel today!
>> http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7
>>>
>>>
>>>
>>> _______________________________________________
>>> Digestion mailing list
>>> Digestion at listserv.repp.org
>>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>> Beginner's Guide to Biogas
>>> http://www.adelaide.edu.au/biogas/
>>> http://info.bioenergylists.org
>>>
>>
>> --
>> **********************************************************************
>> Dr. Ann C. Wilkie Tel: (352)392-8699
>> Soil and Water Science Department Fax: (352)392-7008
>> University of Florida-IFAS
>> P.O. Box 110960 E-mail: acwilkie at ufl.edu
>> Gainesville, FL 32611-0960
>> ______________________________________________________________________
>> Campus location: Environmental Microbiology Laboratory (Bldg. 246).
>> http://campusmap.ufl.edu/
>> ______________________________________________________________________
>> BioEnergy and Sustainable Technology Society
>> http://grove.ufl.edu/~bests/
>>
>> **********************************************************************
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 3
>> Date: Sun, 09 Sep 2007 17:37:43 -0100
>> From: "Katahdin Energy Works" <KatahdinEnergyWorks at verizon.net>
>> Subject: Re: [Digestion] PE-CNG A better name!
>> To: "'Dr. Ann C. Wilkie'" <acwilkie at ufl.edu>, "'Warren Weisman'"
>> <weiswar at yahoo.com>
>> Cc: digestion at listserv.repp.org
>> Message-ID: <000c01c7f310$831646d0$8942d470$@net>
>> Content-Type: text/plain; charset=us-ascii
>>
>> I would caution you against using inventive, somewhat p.c., language in
>> your
>> grant proposal when at some time in the future, to keep your bus running,
>> you have to resort to gases from other sources.
>>
>> Other than time; there isn't all that much difference between our
>> Manure2Energytm digesters and one using gas from ancient deposits of
>> manure
>> and organic matter.
>>
>> What may be most important are the level of emissions from the bus; and
>> not
>> the source of the gas. Having the 'greenest' bus on the block is almost
>> like
>> have the most clever vanity plate; even worse is when you are passed by
>> one
>> covered in solar panels!
>>
>> Frank J. Heller, MPA
>> KATAHDIN ENERGY WORKS
>> 12 Belmont St.
>> Brunswick, ME 04011-3004
>> 207.729.6090
>> http://mysite.verizon.net/fjheller/
>>
>> -----Original Message-----
>> From: digestion-bounces at listserv.repp.org
>> [mailto:digestion-bounces at listserv.repp.org] On Behalf Of Dr. Ann C.
>> Wilkie
>> Sent: Sunday, September 09, 2007 4:04 PM
>> To: Warren Weisman
>> Cc: digestion at listserv.repp.org
>> Subject: Re: [Digestion] PE-CNG A better name!
>>
>> All,
>>
>> How about RNG-renewable natural gas?
>>
>> _____________________
>> Warren Weisman wrote:
>>
>>> I think it was Alejandro who offered CBG and CNG. This
>>> makes since unless CBG already stands for something
>>> I'm not aware of?
>>>
>>> Warren Weisman
>>> USA
>>>
>>>
>>> --- Ken Calvert <renertech at xtra.co.nz> wrote:
>>>
>>>
>>>>What about 'Bio-CNG'??
>>>>
>>>>----- Original Message -----
>>>>From: "Jim and Amy Rankin" <ajrankin at westal.net>
>>>>To: "Warren Weisman" <weiswar at yahoo.com>;
>>>><digestion at listserv.repp.org>
>>>>Sent: Sunday, September 09, 2007 12:26 PM
>>>>Subject: Re: [Digestion] PE-CNG and CNG
>>>>
>>>>
>>>>
>>>>>Warren,
>>>>>I would say if you feel "biogas" isn't
>>>>
>>>>descriptive, what about "Bio-CNG". I
>>>>
>>>>>think it would be more immediately recognisable
>>>>
>>>>than the "PE".
>>>>
>>>>>Jim
>>>>>
>>>>>James R Rankin, DVM
>>>>>Cedarcrest Farms, Inc
>>>>>Faunsdale, AL USA
>>>>>
>>>>>
>>>>>
>>>>>>
>>>>>>I'm writing a grant for our biogas bus project
>>>>
>>>>and
>>>>
>>>>>>wanted to get the group's opinion on my use of
>>>>
>>>>the
>>>>
>>>>>>term PE-CNG for Present Era Compressed Natural
>>>>
>>>>Gas to
>>>>
>>>>>>distinguish compressed biogas from the already
>>>>>>accepted term Compressed Natural Gas (CNG), or
>>>>
>>>>field
>>>>
>>>>>>gas, a fossil fuel. Let me know if this
>>>>
>>>>eliminates or
>>>>
>>>>>>adds to confusion.
>>>>>
>>>>>
>>>>>_______________________________________________
>>>>>Digestion mailing list
>>>>>Digestion at listserv.repp.org
>>>>>
>>>>
>>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>>
>>>>>Beginner's Guide to Biogas
>>>>>http://www.adelaide.edu.au/biogas/
>>>>>http://info.bioenergylists.org
>>>>>
>>>>
>>>>_______________________________________________
>>>>Digestion mailing list
>>>>Digestion at listserv.repp.org
>>>>
>>>
>>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>>
>>>>Beginner's Guide to Biogas
>>>>http://www.adelaide.edu.au/biogas/
>>>>http://info.bioenergylists.org
>>>>
>>>
>>>
>>>
>>>
>>>
>> ____________________________________________________________________________
>> ________
>>> Shape Yahoo! in your own image. Join our Network Research Panel today!
>> http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7
>>>
>>>
>>>
>>> _______________________________________________
>>> Digestion mailing list
>>> Digestion at listserv.repp.org
>>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>> Beginner's Guide to Biogas
>>> http://www.adelaide.edu.au/biogas/
>>> http://info.bioenergylists.org
>>>
>>
>> --
>> **********************************************************************
>> Dr. Ann C. Wilkie Tel: (352)392-8699
>> Soil and Water Science Department Fax: (352)392-7008
>> University of Florida-IFAS
>> P.O. Box 110960 E-mail: acwilkie at ufl.edu
>> Gainesville, FL 32611-0960
>> ______________________________________________________________________
>> Campus location: Environmental Microbiology Laboratory (Bldg. 246).
>> http://campusmap.ufl.edu/
>> ______________________________________________________________________
>> BioEnergy and Sustainable Technology Society
>> http://grove.ufl.edu/~bests/
>>
>> **********************************************************************
>>
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> Digestion mailing list
>> Digestion at listserv.repp.org
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>> Beginner's Guide to Biogas
>> http://www.adelaide.edu.au/biogas/
>> http://info.bioenergylists.org
>>
>>
>>
>>
>>
>> ------------------------------
>>
>> Message: 4
>> Date: Sun, 9 Sep 2007 16:41:13 -0700 (PDT)
>> From: fest durojaiye <durofestdot at yahoo.com>
>> Subject: [Digestion] request for information on available biogas
>> technology training
>> To: digestion at listserv.repp.org
>> Message-ID: <125828.80402.qm at web42105.mail.mud.yahoo.com>
>> Content-Type: text/plain; charset=iso-8859-1
>>
>> I am planing to construct a digester on my farm as a
>> way of tackling farm waste. could anyone advice me on
>> where to go for training and consultation on digester
>> construction and management.
>>
>>
>>
>> ____________________________________________________________________________
>> ________
>> Be a better Heartthrob. Get better relationship answers from someone who
>> knows. Yahoo! Answers - Check it out.
>> http://answers.yahoo.com/dir/?link=list&sid=396545433
>>
>>
>>
>> ------------------------------
>>
>> Message: 5
>> Date: Sun, 9 Sep 2007 16:49:26 -0700 (PDT)
>> From: Lou Dobb <congoagriculture at yahoo.com>
>> Subject: [Digestion] Biogas yields for tropical energy crops
>> To: Digestion at listserv.repp.org
>> Message-ID: <166997.62030.qm at web37913.mail.mud.yahoo.com>
>> Content-Type: text/plain; charset=iso-8859-1
>>
>> Hi all, I'm new to this mailing list. Thanks for the very interesting
>> resources and discussions.
>>
>> I have been trying to find some data on biogas yields for tropical energy
>> crops (such as sugarcane, sweet sorghum, cassava, sweet potato, grass
>> species, tropical sugar beet, etc...). But I can't find much.
>>
>> In my search I only found data on crops grown in temperate and even cold
>> climates (Finland).
>>
>> E.g. Annimari Lehtom?ki: "Biogas production from energy crops and crop
>> residues", Jyv?skyl? Studies in Biological and Environmental Sciences
>> 163,
>> PhD Dissertation, Faculty of Mathematics and Sciences, University of
>> Jyv?skyl?, 2006.
>>
>> http://dissertations.jyu.fi/studbiol/9513925595.pdf
>>
>> Could anyone help me compile a list of yields for tropical crops?
>>
>> We could use the list for a wiki, as a basic reference.
>>
>>
>> How come there are so little data on this? I don't understand.
>>
>> Best regards,
>> Lou
>>
>>
>> ---------------------------------
>> Boardwalk for $500? In 2007? Ha!
>> Play Monopoly Here and Now (it's updated for today's economy) at Yahoo!
>> Games.
>>
>> ------------------------------
>>
>> Message: 6
>> Date: Sun, 9 Sep 2007 18:03:13 -0700 (PDT)
>> From: Warren Weisman <weiswar at yahoo.com>
>> Subject: Re: [Digestion] Biogas yields for tropical energy crops
>> To: Lou Dobb <congoagriculture at yahoo.com>, Digestion at listserv.repp.org
>> Message-ID: <909654.48600.qm at web62403.mail.re1.yahoo.com>
>> Content-Type: text/plain; charset=iso-8859-1
>>
>>
>> I think there's so little and so much conflicting data
>> is that digestion is not an exact science. A small,
>> well-maintained digester can out-perform a big, fancy
>> one. The second most important aspect of digestion,
>> after an airtight environment, is the proper carbon to
>> nitrogen ratio, which I did not see referred to in the
>> article.
>>
>> Here's the volumes from "A Chinese Biogas Manual",
>> which I consider the best source of information on
>> digestion and biogas, since its empirical data
>> gathered from making MILLIONS of digesters...
>>
>> volumes are per tonne of material:
>>
>> General Stable Manure 260-280 cu.m. gas 50-60% CH4
>> Pig Manure 561 cu.m. gas
>> Horse Manure 200-300 cu.m. gas
>> Rice husks 615 cu.m. gas
>> Fresh grass 630 cu.m. gas 70% CH4
>> Flax stalks or hemp 359 cu.m. gas 59% CH4
>> Straw 342 cu.m. gas 59% CH4
>> Leaves from trees 210-294 cu.m. gas 58% CH4
>> Potato plant leaves & vine, etc. 260-280 cu.m.
>> Sunflower leaves & stalks 300 cu.m. 58% CH4
>> Sludge 640 cu.m. 50% CH4
>> Waste water from wine or spirits making 300-600 cu.m.
>> 58% CH4
>>
>> --- Lou Dobb <congoagriculture at yahoo.com> wrote:
>>
>>> Hi all, I'm new to this mailing list. Thanks for the
>>> very interesting resources and discussions.
>>>
>>> I have been trying to find some data on biogas
>>> yields for tropical energy crops (such as sugarcane,
>>> sweet sorghum, cassava, sweet potato, grass species,
>>> tropical sugar beet, etc...). But I can't find much.
>>>
>>> In my search I only found data on crops grown in
>>> temperate and even cold climates (Finland).
>>>
>>> E.g. Annimari Lehtom?ki: "Biogas production from
>>> energy crops and crop residues", Jyv?skyl? Studies
>>> in Biological and Environmental Sciences 163, PhD
>>> Dissertation, Faculty of Mathematics and Sciences,
>>> University of Jyv?skyl?, 2006.
>>>
>>> http://dissertations.jyu.fi/studbiol/9513925595.pdf
>>>
>>> Could anyone help me compile a list of yields for
>>> tropical crops?
>>>
>>> We could use the list for a wiki, as a basic
>>> reference.
>>>
>>>
>>> How come there are so little data on this? I don't
>>> understand.
>>>
>>> Best regards,
>>> Lou
>>>
>>>
>>> ---------------------------------
>>> Boardwalk for $500? In 2007? Ha!
>>> Play Monopoly Here and Now (it's updated for today's
>>> economy) at Yahoo! Games.
>>> _______________________________________________
>>> Digestion mailing list
>>> Digestion at listserv.repp.org
>>>
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>> Beginner's Guide to Biogas
>>> http://www.adelaide.edu.au/biogas/
>>> http://info.bioenergylists.org
>>>
>>
>>
>>
>>
>> ____________________________________________________________________________
>> ________
>> Sick sense of humor? Visit Yahoo! TV's
>> Comedy with an Edge to see what's on, when.
>> http://tv.yahoo.com/collections/222
>>
>>
>>
>> ------------------------------
>>
>> Message: 7
>> Date: Sun, 9 Sep 2007 18:25:03 -0700 (PDT)
>> From: Warren Weisman <weiswar at yahoo.com>
>> Subject: Re: [Digestion] PE-CNG A better name!
>> To: fjheller at verizon.net, "'Dr. Ann C. Wilkie'" <acwilkie at ufl.edu>
>> Cc: digestion at listserv.repp.org
>> Message-ID: <483260.99783.qm at web62412.mail.re1.yahoo.com>
>> Content-Type: text/plain; charset=iso-8859-1
>>
>>
>> I have been a large engine mechanic for nearly 18
>> years. I have a vague understanding of fuel systems,
>> including spark-ignited compressed gas systems.
>>
>> The CO2 released during combustion of present era
>> biogas is the same amount the plants would release if
>> they were left to decompose normally. This amount is
>> more than offset by the amount of CO2 the plants
>> absorb for food during their life cycle. Hence, if we
>> burn present-era biogas in an engine, we are
>> contributing zero net greenhouse gas emissions. Not
>> little, but ZERO. In addition to running cleaner and
>> quieter and cooler.
>>
>> The CO2 from field gas is from an entirely different
>> geological age in the earth's history. That CO2 is not
>> supposed to be released into our present atmosphere.
>> This makes a profound difference between biogas and
>> Natural Gas in environmental benefits.
>>
>> That said. For this bus we will be using the 100 MMscf
>> of biogas currently being flared at our local
>> wastewater treatment facility, so we are capturing
>> "free" biogas that would ordinarily be wasted. I'm
>> pretty sure 100 MMscf will run one bus and we will not
>> be resorting to using other fuels.
>>
>> If our local government would like to add more buses,
>> we will build some food waste digesters to generate
>> the fuel.
>>
>> Warren Weisman
>> USA
>>
>> -- Katahdin Energy Works
>> <KatahdinEnergyWorks at verizon.net> wrote:
>>
>>> I would caution you against using inventive,
>>> somewhat p.c., language in your
>>> grant proposal when at some time in the future, to
>>> keep your bus running,
>>> you have to resort to gases from other sources.
>>>
>>> Other than time; there isn't all that much
>>> difference between our
>>> Manure2Energytm digesters and one using gas from
>>> ancient deposits of manure
>>> and organic matter.
>>>
>>> What may be most important are the level of
>>> emissions from the bus; and not
>>> the source of the gas. Having the 'greenest' bus on
>>> the block is almost like
>>> have the most clever vanity plate; even worse is
>>> when you are passed by one
>>> covered in solar panels!
>>>
>>> Frank J. Heller, MPA
>>> KATAHDIN ENERGY WORKS
>>> 12 Belmont St.
>>> Brunswick, ME 04011-3004
>>> 207.729.6090
>>> http://mysite.verizon.net/fjheller/
>>>
>>> -----Original Message-----
>>> From: digestion-bounces at listserv.repp.org
>>> [mailto:digestion-bounces at listserv.repp.org] On
>>> Behalf Of Dr. Ann C. Wilkie
>>> Sent: Sunday, September 09, 2007 4:04 PM
>>> To: Warren Weisman
>>> Cc: digestion at listserv.repp.org
>>> Subject: Re: [Digestion] PE-CNG A better name!
>>>
>>> All,
>>>
>>> How about RNG-renewable natural gas?
>>>
>>> _____________________
>>> Warren Weisman wrote:
>>>
>>> > I think it was Alejandro who offered CBG and CNG.
>>> This
>>> > makes since unless CBG already stands for
>>> something
>>> > I'm not aware of?
>>> >
>>> > Warren Weisman
>>> > USA
>>> >
>>> >
>>> > --- Ken Calvert <renertech at xtra.co.nz> wrote:
>>> >
>>> >
>>> >>What about 'Bio-CNG'??
>>> >>
>>> >>----- Original Message -----
>>> >>From: "Jim and Amy Rankin" <ajrankin at westal.net>
>>> >>To: "Warren Weisman" <weiswar at yahoo.com>;
>>> >><digestion at listserv.repp.org>
>>> >>Sent: Sunday, September 09, 2007 12:26 PM
>>> >>Subject: Re: [Digestion] PE-CNG and CNG
>>> >>
>>> >>
>>> >>
>>> >>>Warren,
>>> >>>I would say if you feel "biogas" isn't
>>> >>
>>> >>descriptive, what about "Bio-CNG". I
>>> >>
>>> >>>think it would be more immediately recognisable
>>> >>
>>> >>than the "PE".
>>> >>
>>> >>>Jim
>>> >>>
>>> >>>James R Rankin, DVM
>>> >>>Cedarcrest Farms, Inc
>>> >>>Faunsdale, AL USA
>>> >>>
>>> >>>
>>> >>>
>>> >>>>
>>> >>>>I'm writing a grant for our biogas bus project
>>> >>
>>> >>and
>>> >>
>>> >>>>wanted to get the group's opinion on my use of
>>> >>
>>> >>the
>>> >>
>>> >>>>term PE-CNG for Present Era Compressed Natural
>>> >>
>>> >>Gas to
>>> >>
>>> >>>>distinguish compressed biogas from the already
>>> >>>>accepted term Compressed Natural Gas (CNG), or
>>> >>
>>> >>field
>>> >>
>>> >>>>gas, a fossil fuel. Let me know if this
>>> >>
>>> >>eliminates or
>>> >>
>>> >>>>adds to confusion.
>>> >>>
>>> >>>
>>> >>>_______________________________________________
>>> >>>Digestion mailing list
>>> >>>Digestion at listserv.repp.org
>>> >>>
>>> >>
>>> >
>>>
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>> >
>>> >>>Beginner's Guide to Biogas
>>> >>>http://www.adelaide.edu.au/biogas/
>>> >>>http://info.bioenergylists.org
>>> >>>
>>> >>
>>> >>_______________________________________________
>>> >>Digestion mailing list
>>> >>Digestion at listserv.repp.org
>>> >>
>>> >
>>> >
>>>
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>> >
>>> >>Beginner's Guide to Biogas
>>> >>http://www.adelaide.edu.au/biogas/
>>> >>http://info.bioenergylists.org
>>> >>
>>> >
>>> >
>>> >
>>> >
>>> >
>>>
>> ____________________________________________________________________________
>>> ________
>>> > Shape Yahoo! in your own image. Join our Network
>>> Research Panel today!
>>>
>> http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7
>>>
>>> >
>>> >
>>> >
>>> > _______________________________________________
>>> > Digestion mailing list
>>> > Digestion at listserv.repp.org
>>> >
>>>
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>> > Beginner's Guide to Biogas
>>> > http://www.adelaide.edu.au/biogas/
>>> > http://info.bioenergylists.org
>>> >
>>>
>>> --
>>>
>> **********************************************************************
>>> Dr. Ann C. Wilkie Tel:
>>> (352)392-8699
>>> Soil and Water Science Department Fax:
>>> (352)392-7008
>>> University of Florida-IFAS
>>> P.O. Box 110960 E-mail:
>>> acwilkie at ufl.edu
>>> Gainesville, FL 32611-0960
>>>
>> ______________________________________________________________________
>>> Campus location: Environmental Microbiology
>>> Laboratory (Bldg. 246).
>>> http://campusmap.ufl.edu/
>>>
>> ______________________________________________________________________
>>> BioEnergy and Sustainable Technology Society
>>> http://grove.ufl.edu/~bests/
>>>
>>>
>> **********************************************************************
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Digestion mailing list
>>> Digestion at listserv.repp.org
>>>
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>>> Beginner's Guide to Biogas
>>> http://www.adelaide.edu.au/biogas/
>>> http://info.bioenergylists.org
>>>
>>>
>>>
>>
>>
>>
>>
>> ____________________________________________________________________________
>> ________
>> Boardwalk for $500? In 2007? Ha! Play Monopoly Here and Now (it's updated
>> for today's economy) at Yahoo! Games.
>> http://get.games.yahoo.com/proddesc?gamekey=monopolyherenow
>>
>>
>>
>> ------------------------------
>>
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>>
>> End of Digestion Digest, Vol 15, Issue 11
>> *****************************************
>>
>>
>> _______________________________________________
>> Digestion mailing list
>> Digestion at listserv.repp.org
>> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
>> Beginner's Guide to Biogas
>> http://www.adelaide.edu.au/biogas/
>> http://info.bioenergylists.org
>>
>>
>>
>> --
>> Internal Virus Database is out-of-date.
>> Checked by AVG Free Edition.
>> Version: 7.5.485 / Virus Database: 269.13.3/986 - Release Date:
>> 03/09/2007
>> 09:31
>>
>>
>
>
> _______________________________________________
> Digestion mailing list
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> http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
> Beginner's Guide to Biogas
> http://www.adelaide.edu.au/biogas/
> http://info.bioenergylists.org
>
>
> --
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