Stack gas emissions control system

Patent · Tue Apr 14 00:00:00 EDT 1987

OSTI ID:6758114

Kanter, I E; Hundstad, R L

A system is described for controlling SO/sub x/ and NO/sub x/ emissions of an exhaust gas flow generated by a combustion apparatus comprising: an electrochemical reactor in communication with the combustion apparatus so that the exhaust gas generated thereby circulates through the electrochemical reactor. It includes an inlet and an outlet with the inlet coupled to a fan means whereby the exhaust gas from the combustion apparatus is circulated through the electrochemical reactor at a flow rate of from about 0.5 to 1 Mach number. The reactor includes a predetermined number of hexagonal modular units each comprising electronic cathode means spaced from anode means, each of which are disposed within the reactor to effect substantial contact with the exhaust gas circulated therethrough. The electronic cathode means comprises an array of spaced-apart pin-type cathode members spaced from a planar anode member, and means for providing a d.c. potential between the cathode means which are resistively balanced.

• Assignee: Westinghouse Electric Corp., Pittsburgh, PA
• Patent Number(s): US 4657738
• OSTI ID: 6758114
• Resource Relation: Patent File Date: Filed date 21 Apr 1986
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
42 ENGINEERING
COMBUSTORS
AIR POLLUTION CONTROL
ELECTROSTATIC PRECIPITATORS
DESIGN
OPERATION
FLUE GAS
STACK DISPOSAL
NITROGEN OXIDES
SULFUR DIOXIDE
ANODES
BLOWERS
CATHODES
CHEMICAL REACTORS
CIRCULATING SYSTEMS
DIRECT CURRENT
ELECTROCHEMISTRY
EXHAUST SYSTEMS
GAS FLOW
INTAKE STRUCTURES
MACH NUMBER
CHALCOGENIDES
CHEMISTRY
CONTROL
CURRENTS
ELECTRIC CURRENTS
ELECTRODES
EQUIPMENT
FLUID FLOW
GASEOUS WASTES
MANAGEMENT
MECHANICAL STRUCTURES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
SULFUR COMPOUNDS
SULFUR OXIDES
VELOCITY
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
424000 - Engineering- Pollution Control Equipment- (1980-1989)