Facing the Sulfuric Acid Aerosol Problem in Flue Gas Cleaning: Pilot Plant Experiments and Simulation

Figures & data

FIG. 1 Pilot plant. (Color figure available online.)

FIG. 2 Measuring system pilot plant. (Color figure available online.)

TABLE 1 Range of conditions for experiments

T ^Gas inlet/°C	193–200
T ^Liquid inlet/°C	44–47
	0.02–0.03
	0.055–0.06
	0.83
	<1%
p/mbar	980–1000
Δp/mbar	5.5–6.2

FIG. 3 Aerosol number concentration at different measurement positions at pilot plant with low and high foreign nuclei (FN) number concentration. (Color figure available online.)

TABLE 2 Conditions for simulations pilot plant

T ^Gas inlet/°C	200
T ^Liquid inlet/°C	49.6
	0.02
	0.06
	0.83
	0
p/mbar	1000
Δp/mbar	7

FIG. 4 Aerosol number concentrations from measurement, simulations from AerCoDe and including coagulation calculations. (Color figure available online.)

FIG. 5 Cumulative size distributions from simulation and coagulation calculation for 5, 10, and 25 mg/m³(STP). (Color figure available online.)

FIG. 6 Cumulative size distributions from simulation and coagulation calculation for 5, 50, and 100 mg/m³(STP). (Color figure available online.)

TABLE 3 Conditions for simulations WFGD

T ^Gas inlet/°C	120 and 160
T ^Liquid inlet/°C	44.8 and 48.9
	0.03
	0.06
	0.83
	0
p/mbar	1000
Δp/mbar	7

TABLE 4 Simulation results for WFGD conditions and after 10 s of coagulation

T ^Gas inlet	T ^Liquid inlet		cN	x50	σ	cN after 10 s	x50 after 10 s	σ after 10 s
°C	°C			nm	–		nm	–
120	44.8	3	3.81 × 10^9	8.6	0.451	6.76 × 10^7	39.3	0.331	0.9
120	44.8	10	2.28 × 10^9	20.4	0.460	7.79 × 10^7	75.5	0.310	3.6
160	48.9	3	2.62 × 10^9	8.2	0.464	6.63 × 10^7	33.0	0.343	0.6
160	48.9	10	2.11 × 10^9	18.0	0.465	7.38 × 10^7	65.8	0.309	2.5