Compact hybrid particulate collector (COHPAC)

Patent · Tue Oct 27 04:00:00 EST 1992

OSTI ID:7045392

Chang, R

This patent describes a method for retrofit filtering of particulates in a flue gas from a combustion source having an existing conventional electrostatic precipitator connected thereto and a smoke stack connected to the precipitator. It comprises: removing at least one discharge electrode and collecting electrode from within the housing of the electrostatic precipitator; attaching a tubesheet within the housing; supporting a compact baghouse filter within the separate filter section by the tubesheet; whereby the remaining discharge electrodes and corresponding collecting electrodes in the electrostatis precipitator serve to remove a majority of particulates form the flue gas and impart a residual charge on remaining particulates discharged to the separate filter section, and the remaining particulates are collected by the baghouse filter before the residual electric charge substantially dissipates.

• Assignee: Electric Power Research Inst., Palo Alto, CA (United States)
• Patent Number(s): A; US 5158580
• Application Number: PPN: US 7-651949
• OSTI ID: 7045392
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
200500 -- Fossil-Fueled Power Plants-- Environmental Aspects-- (1990-)
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR FILTERS
AIR POLLUTION CONTROL
BAGHOUSES
COMBUSTION PRODUCTS
CONTROL
ELECTROSTATIC PRECIPITATORS
EQUIPMENT
FILTERS
FLUE GAS
GASEOUS WASTES
PARTICLES
PARTICULATES
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
POLLUTION SOURCES
REMEDIAL ACTION
RETROFITTING
WASTES