文档介绍：Impact of NOx on Baghouse Filter used for
Coal-boiler Smoke
Jingxian Liu, Haiyan Zhang, Ning Mao, Deqiang Chang, Xi Sun
Filter Test Center, Northeastern University,
Shenyang, China
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Abstract—To remove the dust in coal-boiler flue gas, PPS filter is strength is presented by Strength Retention (SR) which is the
widely used on baghouse because of the excellent performance. rate of experimental filter strength at NO2 condition divided by
Applications show that ponents of NOx in flue gas have filter strength of reference sample. SR is one of the important
negative effect on filter. In the paper, some systematic items to assess filter lifetime used in baghouse. In order to
experiments are designed to find the influence of concentration eliminate the experiment deviation from temperature, reference
and contacting time of NO2 on PPS filter. The experiment data samples are put in oven (outside of sample container).
and SEM images show that the filter break strength and
brittleness degrade going with some fibers break. The chemical
reaction process is analyzed also. TABLE I. TXPERIMENTAL CONDITION MATRIX
Temperature(℃) Time(h) NO (×103ppm)
Keywords: NOx; flue gas; PPS filte; break strength 2
190 24 1,,,,, 250
190 24,48,72,96,120
I. INTRODUCTION 130,150,170,190,210 24
Industrial applications s