High Intensity lonization Applied to Venturi Scrubbing

Kearns, M.T.

doi:10.1080/00022470.1979.10470806

Cited by 8 publications

(4 citation statements)

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“…The high intensity ionizing stage obviously consists of a solid metal disc discharge electrode supported by a structurally reliable tube section maintained in a cylindrical grounded arrangement [25]. Such an ionizing stage can be operated as an pre-charger which provides operating field strengths of 10-17 kV/cm compared to levels of 3-6 kV/cm in a conventional ESP.…”

Section: Wet Electrostatic Precipitationmentioning

confidence: 99%

“…The ion density in turn is a function of the supply current, electric field, and the ionizer geometry [25,28]. But there is a problem with the use of a high intensity ionizing stage which involves the space charge phenomenon downstream the ionizing stage [29,30].…”

Section: Wet Electrostatic Precipitationmentioning

confidence: 99%

“…Also severe abrasion problems can occur during the striking of particles on the walls of the cyclone [1,[11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Collection of Fine Particles by Novel Wet Electrostatic Precipitator

Bologa

Seifert

Paur

et al. 2008

2008 IEEE Industry Applications Society Annual Meeting

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A novel wet electrostatic precipitator is designed for control of fine aerosol from humid effluent gases. It operates on the principle of unipolar particle charging in a DC corona discharge in a high velocity (> 20 m/s) ionizing stage and aerosol precipitation in the low velocity (< 3 m/s) collection stage under the field of particle own space charge. The high gas velocity in the ionizing section diminishes the corona suppression at high particle number concentrations of H 2 SO 4 and HCl aerosol.

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Section: Wet Electrostatic Precipitationmentioning

confidence: 99%

Section: Wet Electrostatic Precipitationmentioning

confidence: 99%

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Collection of Fine Particles by Novel Wet Electrostatic Precipitator

Bologa

Seifert

Paur

et al. 2008

2008 IEEE Industry Applications Society Annual Meeting

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“…Kearns (1979) enhanced particle charging in the corona discharge field by adopting a high velocity ionization stage, which provided operating field strengths of 10-17 kV/cm, compared with 3-6 kV/cm in a conventional ESP, and gas velocities 7-10 times higher than those used in conventional ESP systems. Low and uniform current densities at the collecting electrodes were achieved using small barb distances and small discharge electrode distance by Miller et al (1998), suggesting that changing the electrode configuration can improve fine dust removal efficiency as well as reduce negative effects like the back-corona phenomenon.…”

Section: Introductionmentioning

confidence: 99%

Activated Carbon-Coated Electrode and Insulating Partition for Improved Dust Removal Performance in Electrostatic Precipitators

Kim

Jun

2015

Water Air Soil Pollut

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The dust removal performance of two types of modified electrode electrostatic precipitator systems was evaluated and compared with that of a conventional aluminum plate electrode using laboratory-scale experiments. In the novel electrode systems, the electrode surface was coated with activated carbon using a mixed slurry containing carbon black, polyvinyl acetate, and methanol. The modification of the electrode surface improved dust precipitation by increasing the specific capacitance of the electrode. The modification also lowered the electrode's resistance and increased its specific surface area. The optimum electrode spacing and electric voltage supply were determined using batchtype tests. In addition, dielectric insulators were applied as a partition between the oppositely charged electrodes equipped with the modified electrode plates. Multilayered office paper cut to the same size as the electrodes was used as an insulating material. The addition of the insulator resulted in excellent improvement in the dust removal performance by minimizing the back-corona discharge phenomenon as well as doubling the dust collecting surface. Continuous dust removal tests with the three electrode systems revealed that whereas the conventional aluminum electrode exhibited 54 % dust removal, the activated carbon (AC)-coated system showed 85 % and AC-coated + insulator system showed 90 % and higher dust removal efficiency.

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Wet Scrubber Particulate Collection

Cooper¹

1997

Handbook of Powder Science &Amp; Technology

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High Intensity lonization Applied to Venturi Scrubbing

Cited by 8 publications

References 0 publications

Collection of Fine Particles by Novel Wet Electrostatic Precipitator

Collection of Fine Particles by Novel Wet Electrostatic Precipitator

Activated Carbon-Coated Electrode and Insulating Partition for Improved Dust Removal Performance in Electrostatic Precipitators

Wet Scrubber Particulate Collection

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