Combined electrostatic precipitator and acidic gas removal system

Patent · Tue Dec 05 04:00:00 EST 1989

OSTI ID:6907515

Sparks, L E; Plaks, N

This patent describes a method of retrofitting an apparatus for removing acidic gas and particulate matter from air. The device to be retrofit including an electrostatic precipitator, lacking a precharger, positioned within a housing, a flue gas generating means outside the housing, an entry port in the housing and upstream of the electrostatic precipitator; an exit port in the housing and downstream of the electrostatic precipitator; and ductwork, outside the housing, leading from the generating means to the entry port. The retrofitting comprising the steps of: substituting electrostatic filtration units, for dry electrostatic precipitation, each comprising a precharger and a downstream particle collector having wires of from 1/4 to 1/2 inch in diameter for the electrostatic precipitator. The substituted units being designed so as to occupy less space in the housing that the electrostatic filter lacking a precharger, thereby leaving free space within the housing between a one of the prechargers which is first downstream from the entry port and the exit port and inserting an acidic gas removal means, within the housing.

• Assignee: Administator of U.S. Environmental Protection Agency, Washington, DC
• Patent Number(s): A; US 4885139
• Application Number: PPN: US 7-047577A
• OSTI ID: 6907515
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR
AIR POLLUTION CONTROL
CONTROL
DESIGN
ELECTROSTATIC PRECIPITATORS
EQUIPMENT
FLUIDS
GASES
PARTICLES
PARTICULATES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
PURIFICATION
REMOVAL
RETROFITTING