Method for removing carbonaceous deposits from surfaces of catalysts and plant components

Method for removing carbonaceous deposits from surfaces of catalysts and plant components

  • CN 102,186,589 A
  • Filed: 10/09/2009
  • Published: 09/14/2011
  • Est. Priority Date: 10/20/2008
  • Status: Active Application
First Claim
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1. one kind by handling the method that deposit removes the carbon-containing sediment on catalyst and part of appliance surface with the overfire air stream that at least temporarily is mixed with oxygenous steam, and described method is included under each situation after described steam condensation CO at least 300 ℃

  • temperature monitoring waste gas 2Content, (a) use superheated steam in the described carbon-containing sediment of at least 300 ℃

    Temperature Treatment CO in waste gas 2Content surpass a maximum, (b) then, along with further supply superheated steam, begin to supply oxygen, the amount of regulating the oxygen of supply makes CO in the waste gas 2Content further reduce until it and reduce to<

    value of 1 volume %, then (c) finish the supply superheated steam and make oxygenous above the carbon-containing sediment of residual quantity still by almost remove described deposit until.

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