[Terrapreta] Char made made under pressurized conditions?

[Gerald Van Koeverden]

John,

Have you ever considered drenching hot char in water, especially the  
idea of injecting water into an air-tight container of hot char?

This would not only solve the combustion problem, it would have the  
same effect, of course to a lesser extent, as the steam treatment of  
charcoal to activate it - i.e. increase its total porosity.  Such  
char might be more beneficial if it's to be used as a soil treatment.

Gerrit


On 29-Mar-08, at 10:30 AM, John G. Flottvik wrote:

> Greg.
>
> We would put our hot charcoal into 45 gal drums with a sealed lid  
> to allow
> cooling then transfer to super sacks.
> At one time the char in drum felt only slightly warm to the touch  
> so we
> transferred to super sack and stored in our 45 foot trailer. The warm
> charcoal ignited and burned the trailer full of charcoal + the  
> trailer. Fire
> department was unable to put the charcoal out so we just had to  
> baby sit and
> let it burn/smolder until gone. Expensive lesson.
>
> Regards
> John
>
> ----- Original Message -----
> From: "Greg and April" <gregandapril at earthlink.net>
> To: "Terra Preta" <terrapreta at bioenergylists.org>
> Sent: Friday, March 28, 2008 8:01 PM
> Subject: Re: [Terrapreta] Char made made under pressurized conditions?
>
>
>> Hmmm........
>>
>> Correct me if I'm wrong, but is it not true that char can still be  
>> quite
>> warm, and not burn when O2 comes in contact with it?
>>
>> It is with that in mind that I asked what I did in my previous post -
>> after
>> all, you didn't exactly say at what temp the char was cooling from  
>> did
>> you?
>>
>> No offense,
>> Greg H.
>>
>>
>> ----- Original Message -----
>> From: "Jeff Davis" <jeff0124 at velocity.net>
>> To: "Terra Preta" <terrapreta at bioenergylists.org>
>> Sent: Friday, March 28, 2008 19:38
>> Subject: Re: [Terrapreta] Char made made under pressurized  
>> conditions?
>>
>>
>>> Greg wrote:
>>>> when all you have to do
>>>> is
>>>> open the reactor door, since the natural composition of air is  
>>>> almost
>>>> 80%
>>>> ( by volume )?
>>>
>>> If you just open the door the O2 in the air will burn up you  
>>> charcoal.
>>>
>>>
>>> Kindest regards,
>>>
>>>
>>> Jeff
>>>
>>>
>>>
>>>
>>> -- 
>>> Jeff Davis
>>>
>>> Some where 20 miles south of Lake Erie, USA
>>>
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