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Title: Simultaneous particulates, NO sub x , SO sub x removal from flue gas by all solid-state electrochemical technology

The IGR emission control technology controls SO{sub 2}/NO{sub x}, and particulate emissions from coal combustion flue gases. The technology uses an electrochemical solid-state reactor which converts SO{sub 2} and NO{sub X} to S, N{sub 2}, and O{sub 2}. The cell electrolyte is a solid electrolyte, namely a high surface area ceramic oxide-ion conductor. Three tasks were active during this quarter: Task (1), Procurement, Construction and Debugging of the Electrochemical Reactors and Particulate Removal System, Tasks, (2) Reactor Operation on SO{sub 2}/NO{sub X} Spiked Gas Streams, and Task (3) Electrocatalysts Preparation and Screening Studies. In Task (1) the particulate control apparatus has been completely installed and its operation is being examined with respect to filtration materials and solid electrolyte. In Task (2) electrochemical measurements were made with oxide ion conducting ceramic disks in gases containing NO and SO{sub 2}. In Task (3) the electrochemical measurements are being made using a series of electrocatalysts in gases containing NO, SO{sub 2}, and oxygen. 9 figs., 1 tab.
Authors:
; ; ;  [1] ;  [2]
  1. (Helipump Corp., Cleveland, OH (USA))
  2. (IGR Enterprises, Beachwood, OH (USA))
Publication Date:
OSTI Identifier:
6894258
Report Number(s):
DOE/PC/79855-T6
ON: DE90017345
DOE Contract Number:
AC22-87PC79855
Resource Type:
Technical Report
Research Org:
Helipump Corp., Cleveland, OH (USA); IGR Enterprises, Beachwood, OH (USA)
Sponsoring Org:
DOE/FE
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; 01 COAL, LIGNITE, AND PEAT; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; CHEMICAL REACTORS; OPERATION; ELECTROCATALYSTS; SCREENING; FLUE GAS; AIR POLLUTION CONTROL; NITROGEN OXIDES; REDUCTION; SULFUR DIOXIDE; COMBINED SOXNOX PROCESSES; ELECTROCHEMICAL CELLS; ELECTROCHEMISTRY; PARTICULATES; PERFORMANCE TESTING; PROGRESS REPORT; SOLID ELECTROLYTES; YTTRIUM OXIDES; ZIRCONIUM OXIDES; CATALYSTS; CHALCOGENIDES; CHEMICAL REACTIONS; CHEMISTRY; CONTROL; DOCUMENT TYPES; ELECTROLYTES; GASEOUS WASTES; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PARTICLES; POLLUTION CONTROL; SULFUR COMPOUNDS; SULFUR OXIDES; TESTING; TRANSITION ELEMENT COMPOUNDS; WASTES; YTTRIUM COMPOUNDS; ZIRCONIUM COMPOUNDS 200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions; 010800 -- Coal, Lignite, & Peat-- Waste Management; 400201 -- Chemical & Physicochemical Properties; 360204 -- Ceramics, Cermets, & Refractories-- Physical Properties