[Gasification] Graphite Heat Exchangers for Producer Gas?

[Bob Stuart]

In the early days of graphite  fiber/graphite matrix brake disks on  
race cars, the ceramic coating would sometimes crack, allowing oxygen  
onto the hot graphite.  The result became known in the pits as  
"Designer Coal."

Bob

On 15-Jul-12, at 9:50 PM, Viswanathan KS wrote:

> IMO the graphite tubes are not coated.
>
> On Mon, Jul 16, 2012 at 8:45 AM, Bob Stuart <bobstuart at sasktel.net>  
> wrote:
> Would the coating that protects the graphite from oxidation not  
> also work on copper?
>
> Bob
>
>
> On 15-Jul-12, at 8:10 PM, Tom Miles wrote:
>
> Graphite heat exchangers are now used on domestic condensing hot  
> water boilers. (See SGL Group.) Heat transfer is reportedly 8 times  
> that of stainless steel. Why not use them for cooling and  
> condensing producer gas?
>
>
>
> Tom
>
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