[Gasification] Active charcoal

[Kevin]

Dear AD

Very interesting!!

Is the charcoal that is activated by CaCl2 "good for everything that activated charcoal is good for", or is it perhaps equally good for some tasks, but not necessarily as good for all?

What applications have you used the CaCl2 activated charcoal in?

What % by weight CaCl2, would you use?

Thanks!

Kevin
  ----- Original Message ----- 
  From: Anand Karve 
  To: Discussion of biomass pyrolysis and gasification 
  Sent: Sunday, February 19, 2012 10:21 PM
  Subject: Re: [Gasification] Active charcoal


  Dear Darius,
    Normally one needs relatively high temperature to make active charcoal, but the pretreatment with calcium chloride allows us to make active charcoal even at relatively low temperatures. We make charcoal from light biomass like agricultural waste and use a TLUD type kiln. You would have to conduct experiments using your biomass and your process of charring to see if this pretreatment works in your case or not. 
  Yours
  A.D.Karve

  On Sat, Feb 18, 2012 at 11:01 PM, Darius <darius_tamizi at hotmail.com> wrote:

    Dear Dr. A.D. Karve

    Charring material are rubber wood.

    Could you tell me the detail process?

    Regards,

    Darius

    On 2/18/2012 9:56 PM, Anand Karve wrote: 
      Dear Darius,
      what material are you charring? We make our charcoal from leaves of sugarcane, which are discarded during the process of sugarcane harvest. By soaking the leaves in 5% solution of calcium chloride, dying them and then converting them into char in a TLUD kiln gives us active charcoal. We have not tested this process in the case of woody material. Perhaps you can do this experiment. 
      Yours
      A.D.Karve

      On Sat, Feb 18, 2012 at 10:14 PM, Darius <darius_tamizi at hotmail.com> wrote:

        Dear all,
         
        Is somebody  there can help me to convert our char into active charcoal?

        Regards,

        Darius

         
        Dr. A.D. Karve
        Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)




       

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  -- 
  ***
  Dr. A.D. Karve
  Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)





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