The invention discloses an oil-in-water type
emulsion preparing method and the application of the oil-in-water type
emulsion in organic
waste gas treatment. The oil-in-water type
emulsion is prepared from, by
mass, 1-20% of oil, 0.1-5.0% of emulgator, 0-1.0% of additive, and the
balance water. The preparing method comprises the steps of dissolving emulgator in water while stirring, increasing the temperature to 20-60 DEG C, adding oil, conducting stirring for 0.5 h, and then adding additive and conducting stirring for 0.5-1.5 h, so that the oil-in-water type emulsion is obtained. The oil-in-water type emulsion is wide in
raw material source, low in price, easy and safe to transport, store, prepare and use, and low in production cost. Furthermore, the oil-in-water type emulsion application technology is simple,
pollutant removing efficiency is high, blistering is avoided, and application range is wide. By the adoption of the emulsion,
aromatic hydrocarbon removing efficiency is larger than or equal to 90%, ester removing efficiency is larger than or equal to 90%,
ketone removing efficiency is larger than or equal to 90%, and
hydrocarbon removing efficiency is larger than or equal to 80%.