[Terrapreta] challenges for the future of TP

[Sean K. Barry]

I hate typos when its late? =>,  It might need to be tailored recipes, fine-tuned for local soils.

  ----- Original Message ----- 
  From: Kevin Chisholm<mailto:kchisholm at ca.inter.net> 
  To: Sean K. Barry<mailto:sean.barry at juno.com> 
  Sent: Sunday, December 16, 2007 2:48 PM
  Subject: Re: [Terrapreta] challenges for the future of TP


  Dear Sean

  Thanks very much. I understand now.

  Kevin

  Sean K. Barry wrote:
  > Hi Kevin,
  >  
  > CH20 is the basic building block for carbohydrates.  For instance 
  > glucose sugar is C6H12O6.  It is made up of carbon hydrogen and oxygen 
  > in that basic ratio 1:2:1  for C:H:O or 1:1 for C:H2O.   CH2O + O2 => 
  > CO2 + H2O just describes the oxygen reduction reaction of 
  > carbohydrates (carbohydrate burning).
  >  
  > I don't believe CH2O is by itself a stable compound.  Carbon-C atoms 
  > have a valance of +4 and H2O has no valance, just some interesting 
  > effects from being a polar molecule (cohesion, adhesion).  That's all.
  >  
  > SKB
  >  
  > ----- Original Message -----
  >
  >     *From:* Kevin Chisholm <mailto:kchisholm at ca.inter.net<mailto:kchisholm at ca.inter.net>>
  >     *To:* Sean K. Barry <mailto:sean.barry at juno.com<mailto:sean.barry at juno.com>>
  >     *Sent:* Sunday, December 16, 2007 6:49 AM
  >     *Subject:* Re: [Terrapreta] challenges for the future of TP
  >
  >     Dear Sean
  >
  >     What is the compound name for CH2O?
  >
  >     Thanks!!
  >
  >     Kevin
  >     Sean K. Barry wrote:
  >     > Correction: 2CH2 + 2O2 => 1CO2 + 2H2O  should have read CH2O +
  >     O2 =>
  >     > CO2 + H2O, I think.
  >     >
  >     >     ----- Original Message -----
  >     >     *From:* Sean K. Barry <mailto:sean.barry at juno.com<mailto:sean.barry at juno.com>>
  >     >     *To:* MMBTUPR at aol.com<mailto:MMBTUPR at aol.com> <mailto:MMBTUPR at aol.com<mailto:MMBTUPR at aol.com>>
  >     <mailto:MMBTUPR at aol.com<mailto:MMBTUPR at aol.com>>
  >     >     *Cc:* terrapreta <mailto:terrapreta at bioenergylists.org<mailto:terrapreta at bioenergylists.org>>
  >     >     *Sent:* Friday, December 14, 2007 9:20 PM
  >     >     *Subject:* Re: [Terrapreta] challenges for the future of TP
  >     >
  >     >     
  >     >     Hi Lewis,
  >     >     
  >     >     You know,  that is one of the nicest things about standards, ...
  >     >     there are so many to choose from.  There is a test for
  >     "proximate
  >     >     analysis" of charcoal, ASTM D1762.  It gives you the %moisture,
  >     >     $volatile matter, %ash, and %fixed carbon in a charcoal sample.
  >     >     However, there is no test that determines a chemical
  >     analysis (or
  >     >     the repspective ratios) of the multiple different compounds
  >     >     potentially in "volatile matter".
  >     >     
  >     >     Processes for pyrolysis of biomass can be monitored for things
  >     >     like core temperature of the gas, exit temperature of the gas
  >     >     (biomass/char particle temperatures are inferred), residence
  >     time
  >     >     of the feedstock and or charcoal, gas analysis and flow, a
  >     lambda
  >     >     factor (related to the stoichiometric of the 2CH2 + 2O2 =>
  >     1CO2 +
  >     >     2H2O component of the pyrolysis reaction), etc.
  >     >     
  >     >     These measurements can mostly help you control the relative
  >     yields
  >     >     of the pyrolysis reaction products (in mass, btu, and or
  >     volume);
  >     >     non-condensable fuel gases + combustion product gases + volatile
  >     >     matter (tars, liquids, solids) + inert gases, soot (solid
  >     carbon),
  >     >     heat, charcoal, and ash.  The economics of charcoal production
  >     >     also include feedstock material and delivery costs.  Using
  >     >     charcoal for soils management may require soil analysis costs,
  >     >     charcoal and other product delivery costs, and soil
  >     application costs.
  >     >     
  >     >     Tying the measurable characteristics of charcoal to a "best
  >     >     practice" methodology for use as a soil amendment (Terra Preta
  >     >     style) has not been done yet.  It will likely require much field
  >     >     testing.  It could involve ingredients and/or mixtures with, or
  >     >     other than charcoal alone.
  >     >     I might need to be tailored recipes, fine-tune for local soils.
  >     >     
  >     >     Regards,
  >     >     
  >     >     SKB
  >     >
  >     >
  >     ------------------------------------------------------------------------
  >     >
  >     > _______________________________________________
  >     > Terrapreta mailing list
  >     > Terrapreta at bioenergylists.org<mailto:Terrapreta at bioenergylists.org> <mailto:Terrapreta at bioenergylists.org<mailto:Terrapreta at bioenergylists.org>>
  >     >
  >     http://tech.groups.yahoo.com/group/biochar/<http://tech.groups.yahoo.com/group/biochar/>
  >     > http://terrapreta.bioenergylists.org<http://terrapreta.bioenergylists.org/>
  >     > http://info.bioenergylists.org<http://info.bioenergylists.org/>
  >
  >
  >



-------------- next part --------------
An HTML attachment was scrubbed...
URL: /attachments/20071216/f058dded/attachment.html