Method for purifying epoxypropane-containing organic waste gas

Method for purifying epoxypropane-containing organic waste gas

  • CN 102,049,182 B
  • Filed: 10/27/2009
  • Issued: 07/22/2015
  • Est. Priority Date: 10/27/2009
  • Status: Active Grant
First Claim
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1. the purification method containing expoxy propane organic exhaust gas, it is characterized in that:

  • in exhaust gas washing tower, first make exhaust gas concentration obtain homogenizing containing expoxy propane organic exhaust gas, exhaust gas washing tower is washed waste gas by acidic cleaning liquid, completes the pretreatment of wash concentration homogenizing;

    Under normal condition, absorbing liquid reaches poised state to the absorption rate of expoxy propane and rate of release;

    When the propylene oxide concentrations in waste gas raises suddenly, the absorption rate of expoxy propane is greater than rate of release, the propylene oxide concentrations in waste gas can be made to reduce, thus reduce exhaust gas concentration;

    And then carry out catalytic oxidation treatment, by the harmful substance removal in waste gas.

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