Photothermal reactor

Figure 22.4.8. The effect of sunlight fluctuations on the photothermal destruction of methyl ethyl ketone in the parabolic trough, photothermal reactor. MEK conversion, insolation level, and reactor temperature are plotted as a function of continuous outdoor illumination time.

When the reaetor reached an operating temperature of 170°C, complete VOC destruction was achieved for the entire run except for a period of peak VOC emissions beginning at 9 30 and ending at 9 45. Thus, during this four hour period, the PCO process destroyed virtually all of the VOCs in the slip stream from the paint booth exhaust. The total time averaged conversion is estimated to be greater than 95%. These data were used to design the solar-driven, photothermal reactor system. 

The photothermal reactor was tested in July, 1997 for toree weeks on paint boofli emissions using natural sunlight A representative data set for July 22, 1997 is shown in Figure 22.4.9 in which the total VOC concentration for the inlet and the outlet of the parabolic trough, photothermal reactor is plotted against illumination time. The solvent stream, whieh varied with time, generally eon-tained about 140 ppmv of toluene, methyl ethyl ketone, methyl isobutyl ketone, xylenes, butyl aeetate and ethyl benzene. The oper-... 

The photothermal reactor was tested in July, 1997 for three weeks on paint booth emissions using natural sunlight. A representative data set for July 22, 1997 is shown in Figure 21.4.9 in which the total VOC concentration for... 

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