Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Flue gas conditioning system

Patent ·
OSTI ID:5748372
This patent describes improvement in a system for conditioning boiler flue gas with sulfur-trioxide for removal of entrained particles with an electrostatic precipitator, including means to provide a controlled flow of sulfur dioxide and air at a temperature only in excess of the condensation temperature of sulfurous acid. The improvement comprises: means to divide the flow of air and sulfur dioxide into a plurality of air-sulfur dioxide flows of reduced volume; a plurality of sulfur dioxide converter assemblies, each sulfur dioxide converter assembly comprising a small heater for the flow of air and sulfur dioxide and a contiguous small catalytic converter, the heater and catalytic converter having a heating capacity and SO{sub 3} conversion capacity sufficient for the reduced volume of one of the plurality of air-sulfur dioxide flows.
Assignee:
Wilhelm Environmental Technologies, Inc., Indianapolis, IN (United States)
Patent Number(s):
US 5032154; A
Application Number:
PPN: US 7-494234
OSTI ID:
5748372
Country of Publication:
United States
Language:
English