Subject: Met Coke
From: "Mary Gade" <[email-masked]>
To: "Mark O'Malley" <[email-masked]>, "Hunter Biden" <[email-masked]>
Date: Tue, 7 Dec 2010 11:23:46 -0800 (PST)

Mark and Hunter--I don't know how much you know about metallurgical coke and its 
uses but thought I would give you a couple of paragraphs about it prior to our 
call tomorrow with Jim Mennell.  Jim's new enterprise is focused on creating a 
version of "met coke" using biomass (possibly trees but maybe another feedstock) 
 instead of coal.  Met coke is a carbon material manufactured by "destructive 
distillation" of biuminous coal.  This is usually done in coke batteries which 
are banks of large, enclosed kilns loaded with coal that are heated to 
temperatures of 1000C in the absence of air.  This process removes various 
volatile compounds from the coal including coal tar, ammonia, etc.  The 
resulting coke is a non-melting carbon which has an open, porous and often 
glassy appearance that comes in sizes from fine powder to basket-ball size 
lumps. The coke has a stable burning temperature.  It is combined with iron ore 
in the first step of creating iron and steel through smelting in basic oxygen 
furnaces (BOFs).  The average price of met coke has stabilized around $150/ton 
over the past year.   Hope this is useful... Mary

Mary A. Gade
>GADE ENVIRONMENTAL GROUP, LLC
>444 N. Michigan Ave., Suite 3600
>Chicago, IL  60611
>Phone: 608.669.8040
>email: [email-masked]
>

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