Synergistic treatment mechanism of volatile organic pollutants and ozone in coal-based semi-coke process
In order to explore the synergistic treatment of volatile organic pollutants and ozone produced in coal-based semi-coke process by low temperature plasma combined with catalyst carrier,xylene was used as the target pollutant,and γ-alumina sphere was selected as the catalyst carrier,the effects of power,oxygen flux,initial concentration of xylene and catalyst carrier dosage on the synergistic treat-ment of volatile organic pollutants and ozone were investigated.The results show that the greater the power of low temperature plasma discharge,the better the removal effects of xylene.When the discharge power was 70 W,the oxygen flux was 15％,and the initial concentration was 600 × 10-6,the removal rate of xylene reached 64.41％,and the ozone production was only 125.21 × 10-6;the synergistic treatment efficiency was the highest for this performance.Under the condition of optimal low tempera-ture plasma performance,the smaller the particle size of γ-alumina carrier,the higher the removal effi-ciency of xylene,which is the best synergistic treatment effect.The total removal rate of xylene could reach 73.93％,and the highest ozone inhibition rate was 66.45％.Therefore,γ-alumina carrier has a certain promoting effect on the synergistic treatment of volatile organic pollutants and ozone by low tem-perature plasma.The research results can provide an effective reference for the synergistic treatment of volatile organic pollutants.
semi-cokelow temperature plasmavolatile organic pollutantsozone
万方数据
维普
