The impact of fly ash resistivity and carbon content on electrostatic precipitator performance

Experimental study on fly ash resistivity at temperatures above 673 K

“…Particle resistivity is normally determined by measuring the leakage current through a dust layer in high voltage conductivity cell [9]. According to this method, DR2-1000 type high temperature dust resistivity test facility was used to test the electrical resistivity of fly ashes at high temperature.…”

“…Electrical resistivity of particle is an essential variable which significantly affects ESP collection efficiency [9]. By now, the research on the resistivity is restricted to the range of low temperature (<723 K).…”

Characteristics and the behavior in electrostatic precipitators of high-alumina coal fly ash from the Jungar power plant, Inner Mongolia, China

“…And the resistivity was measured at 130 • C. The experimental results shown that the content of unburned carbon was lower than 5% in all samples, which had not obvious influence on the resistivity of the fly ash and the collection efficiency of the ESP [12][13][14]. In samples 1 and 2, the content of Al 2 O 3 is much more than the other samples and the two samples have relatively high resistivity.…”

Separation of particles from hot gases using metallic foams

“…Today, cyclones (Cortes and Gil, 2007), ceramic filters (De Jong et al, 2003), electrostatic precipitators (Barranco et al, 2007) and candle filters (Aroussi et al, 2001) can be used. These devices are primarily used to capture particles from the product gases.…”