[Stoves] response to Dr. A.D. Karve

[David G. LeVine]

One might also note that coal has different compositions depending on 
the source.

At 01:23 AM 6/10/2007, you wrote:
>However, I wish to point out that Prof. Antal has conceded that the charcoal
>produced by him has typically less than 25% volatile matter.  Assuming that
>his process yields charcoal containing, on an average, 20% volatile matter,
>it explains the high charcoal yield. If a fifth of the weight is deducted
>from his 40% char yield, one gets a figure of 32% pure carbon. The
>oven-and -retort process yields about 33% char. It is free from volatiles
>and comparable to high quality coke. Industries using coke are willing to
>use our charcoal as a substitute for coke.

David G. LeVine
Nashua, NH  03060