Experimental study on removals of SO₂ and NO_X using adsorption of activated carbon/microwave desorption

Figures & data

Figure 1. Sketch of experimental device: 1, high-purity nitrogen; 2, sulfur dioxide; 3, nitrogen oxide; 4, oxygen; 5, mixing tank; 6, flow meter; 7, valve; 8 and 11, anti-leaking belt of microwave irradiation; 9, quartz tube; 10, activated carbon; 12, circulation pipe; 13, temperature display; 14, power adjustment button; 15, electric supply control system; 16, flue gas analyzer; 17, tail gas adsorption bottle; 18, emission; and 19, evaporation device.

Table 1. Characteristics of fresh particle activated carbon used in this study

Activated carbon model	Particle size	Iodine value (mg/g)	Strength(%)	Moisture(%)	pH	Packing density(g/cm^3)	Ash(%)
MWY30T	D, 3.0 mm L3, 8 mm	≥1000	≥95	≤5	≤9	∼0.42	≤12

Figure 2. SEM images of base carbon (I) and microwave-activated carbon (II).

Figure 3. The influences of the concentrations of SO₂ on adsorption capacity of NO and denitrification efficiency.

Figure 4. The influences of the concentrations of NO in flue gas on the adsorption capacity of SO₂ and desulfurization efficiency.

Figure 5. The influence of O₂ content on adsorption capacities of SO₂ and NO.

Figure 6. The influences of O₂ content on desulfurization and denitrification.

Figure 7. Influences of moisture content on adsorption capacities of SO₂ and NO.

Figure 8. Influences of moisture on desulfurization and denitrification efficiencies.

Figure 9. Influences of CO₂ content on adsorption capacities of SO₂ and NO.

Figure 10. Influences of CO₂ content on removal efficiencies of SO₂ and NO.