[Terrapreta] Another promising carbon capture technique

[Kevin Chisholm]

Dear Green

Thanks for the analysis.

Would anyone have analyses for

1: Fresh bark from debarking pulpwood
and
2: Old bark from debarking of pulpwood, stored in a pile for 5 to 10 years.

Thanks!!

Kevin

Green Waste Recycle Yard wrote:
> Hi Jim,
>
> I see what you mean about "accounting", that you are basically just speeding
> up a process that is already going to occur.
>
> I thought it might be interesting for you to see an analysis of the biomass
> we send to a local cogen plant, who does pretty rigorous testing. I've
> picked one testing that was close to the their spec. Some of our loads are
> over spec, most under. Our loads have a lot of eucalyptus, which has low ash
> content compared to other wood feedstocks. Pine makes up a good part of the
> rest of our biomass.
>
> Where the cogen plant has a specification, I've listed it in parentheses.
>
> Bernie
>
> Proximate Analysis - Dry Basis (%)		
> Ash			 3.09	(Spec <5.0)
> Volatile		79.13	
> Fixed Carbon	17.78	
> Total		     100	
>  % Chlorine (dry basis) 	0.046	
> BTU/lb (HHV)	8343	(Spec >8200)
> Moisture	     31.83	(Spec <40)
> 		
> Ultimate Analysis - Dry Basis (%)		
> Carbon     51.16	
> Hydrogen	5.93	
> Nitrogen	0.22	
> Sulfur	0.05	(Spec <0.1)
> Ash	      3.09	
> Oxygen     39.55	
> Total     100	
> 		
> Elemental Analysis of Ash (%)		
> Silica     37.31	
> Alumina	7.36	
> Titanium	0.36	
> Iron        2.94	
> Calcium    20.8	
> Magnesium	4.48	
> Sodium	2.28	
> Potassium	8.26	
> Phosphorus	3.77	
> Sulfate	0.82	
> Chlorine	0.22	
> CO2        12.22	
> Total     100.82	
> 		
> lb alkali/mmBTU	0.39	
> lb ash/mmBTU	3.71	
> lb SO2/mmBTU	0.12	
> 		
> Metals in Ash (mg/kg)		
> Arsenic	9.09	(Spec <100)
> Lead       90	(Spec <200)
> 		
> Metals in Ash (lbs/BDT)		
> Arsenic	0.0006	(Spec <0.0105)
> Lead        0.0058	(Spec <0.0210)
>
>
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