[Terrapreta] plastic "char" TP

[Kevin Chisholm]

Dear Jim and Edward

Your concerns about halogens (chlorine, fluorine, etc) are quite valis.

A very simple test for halogens is to burn the material in question, and 
put a copper wire in the flame

If the flame turns green, then halogens are present.

You can test this easily... burn some clean polyethylene, and then 
insert a sliver of PVC, a sliver of wood that was soaked in salt water, 
or a piece of dung,  into the flame. Watch it turn green when halogens 
are present.

Best wishes,

Kevin

jim mason wrote:
>
>
> On 10/31/07, *Edward Someus* <edward at terrenum.net 
> <mailto:edward at terrenum.net>> wrote:
>
>      YOUR QUESTION I'm not sure whether the "coke" product in the
>     article is analogous to the char from biomass pyrolysis.
>      
>     * DEFINITELY  NOT*,  plastic contains heavy metals and due to PVC
>     mix input, Halogen contamination remainings can also be counted.
>
>
>
> well, let's not be hysterical about this.  many plastics have nothing 
> other than H, C and O in them.  just like biomass.  actually, many are 
> much more pure in their H, C and O only than biomass.  biomass can 
> have all sorts of problematic things in it, heavy metals included.  
> dosage, again, is what determines the poison, not the whether or not x 
> is on the ingredient list.
>
> staying clear of plastics with chlorine is wise, and noting ones that 
> have formations that can degrade to problematic HCs is good, but 
> otherwise, plastics are synthetic biomass, and made of exactly the 
> same stuff. 
>
> we can play legos with plastics like we can play legos with biomass.  
> i'm just unclear how well the double carbon bond lego backbone of 
> plastics degrades to useful char and the potential to get it into TP 
> relevant forms.
>
> or maybe we should consider plastic as already sequestered carbon.  it 
> lasts for about forever . . . ;-)
>
> j
>
>
>
>  
>
>     Sincerely yours: Edward Someus (environmental engineer)
>     Terra Humana Clean Tech Ltd. (ISO 9001/ISO 14001)
>     3R Environmental Technologies Ltd.
>     ADDRESS: H-1222 Budapest, Szechenyi 59, Hungary
>     TEL handy:  +(36-20) 201 7557
>     TEL / FAX:   +(36-1) 424 0224
>     TEL SKYPE phone via computer:  Edward Someus
>     3R TERRACARBON:   *_http://_**www.terrenum.net* 
>     3R CLEANCOAL ENERGY: *http://www.nvirocleantech.com*
>     <http://www.nvirocleantech.com/> * *
>     _ ** <http://www.vertustechnologies.com/>_ 
>     /-------Original Message-------/
>      
>     /*From:*/ Green Waste Recycle Yard
>     <mailto:info at GreenWasteRecycleYard.com>
>     /*Date:*/ 2007.10.31. 18:28:15
>     /*To:*/ terrapreta at bioenergylists.org
>     <mailto:terrapreta at bioenergylists.org>
>     /*Subject:*/ Re: [Terrapreta] plastic "char" TP
>      
>     Check out the plastic conversion work of Alka Zadgaonkar:
>     http://www.goodnewsindia.com/index.php/Magazine/story/alkaZ/
>      
>     I'm not sure whether the "coke" product in the article is
>     analogous to the char from biomass pyrolysis.
>      
>     Bernie
>
>     ------------------------------------------------------------------------
>     *From:* terrapreta-bounces at bioenergylists.org
>     <mailto:terrapreta-bounces at bioenergylists.org> [mailto:
>     terrapreta-bounces at bioenergylists.org
>     <mailto:terrapreta-bounces at bioenergylists.org>] *On Behalf Of *jim
>     mason
>     *Sent:* Tuesday, October 30, 2007 6:34 PM
>     *To:* Bernie Lenhoff
>     *Subject:* [Terrapreta] plastic "char" TP
>
>
>     has anyone done any tests as to whether HC only plastics can be
>     reduced to a char with relevant porosity for TP?
>      
>
>     	
>     	
>
>
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>
> -- 
> --------------------------------------------------------------------------------
> jim mason
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