Pilot-scale experiments to improve performance of electrostatic precipitators. Report for June 1985-August 1986

Technical Report · Tue Dec 01 04:00:00 EST 1987

OSTI ID:5018974

Sparks, L E; Plaks, N

This paper describes pilot-plant experience with techniques with a potential for improving the performance of electrostatic precipitators (ESPs) by using a novel rapping reentrainment collector and flexible steel cable (in place of solid large-diameter discharge electrodes) for both new and retrofit applications. Rapping reentrainment is a major source of particulate emissions from high-efficiency ESPs (in some cases over 50% of the particulate mass emitted from the ESP is from rapping reentrainment). Significant improvement in ESP technology could thus be achieved if emissions from rapping reentrainment were reduced. A novel rapping reentrainment collector was evaluated at small pilot-plant scale. The collector consisted of a small precharger followed by a very short-collector zone. The precharger used was the cooled electrode precharger developed by Denver Research Institute under EPA sponsorship. The precharger puts a very high charge on the reentrained particles. The particles are then collected with high efficiency in the short-collector zone. The overall mass-collection efficiency of the reentrainment collector was about 85%.

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (USA). Air and Energy Engineering Research Lab.
• OSTI ID: 5018974
• Report Number(s): PB-88-150776/XAB; EPA-600/D-87/362
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
DOCUMENT TYPES
ELECTROSTATIC PRECIPITATORS
EQUIPMENT
FUNCTIONAL MODELS
PARTICLES
PARTICULATES
PERFORMANCE
PILOT PLANTS
POLLUTION CONTROL EQUIPMENT
PROGRESS REPORT
REMOVAL