摘要:The incineration technology of oily sludge-based briquette makes great contributions to oily sludge treatment. In order to resolve these problems, air pollutants (SO 2 and organic gas) emission and low incinerating rate during the briquette incineration, the effects of additives (CaCO 3 , CaO; K 2 CO 3 , Na 2 CO 3 , NaCl; KMnO 4 , KNO 3 , NaNO 3 ; Fe 2 O 3 , KClO 3 ) on the generating gas and incinerating rate during incineration were studied. The results show that CaCO 3 is more effective than CaO for fixing sulphur into residue, and K 2 CO 3 improved the sulphation efficiency of calcium-based additives, which is more useful than NaCl and Na 2 CO 3 did. As for the incinerating rate of briquette, KMnO 4 is more effective than KNO 3 and NaNO 3 . The maximum of incinerating rate of briquette is improved from 0.38 to 0.6 g/min and Fe 2 O 3 and KClO 3 can apparently reduce the release of organic gas during the incineration of briquette. But KClO 3 can greatly reduce the release of sulphur. When the adding amount of CaCO 3 , K 2 CO 3 , KMnO 4 and KClO 3 is 16‰, 12‰, 18‰, 6‰ respectively in the process of briquette preparation, the sulphation efficiency reached the maximum of 95.3%, and there is still an extremely small amount of organic gas in flue gas. CaCO 3 , K 2 CO 3 , KMnO 4 and KClO 3 used in emission control of air pollutants and full combustion of briquette during incineration of oily sludge based-briquette, demonstrates high efficiency and low emission compared to other additives tested in this study.
关键词:Oily sludge;Briquette;Additives;Air pollutants;Emission control