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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 SOx, NOx, and particulate emissions from coal combustion flue gases. It is based on a solid-state, flow-through, electrochemical reactor which reduces NOx and SO{sub 2} to nitrogen, sulfur, and oxygen. The cell electrolyte is a solid electrolyte, normally a high surface area ceramic oxide-ion conductor. Two tasks were active during this quarter: Task, Procurement, Construction and Debugging of the Electrochemical Reactors and Particulate Removal System and Task, Electrocatalyst Preparation and Screening Studies. In Task a nine element particulate control apparatus is ready for testing with oxide ion conducting pieces and a test apparatus has been setup to test ceramic oxygen ion conducting electrolyte reactor elements. Task is the screening of electrocatalysts for high oxygen overpotential and low SO{sub 2} and NO{sub x} overpotential. Electrochemical measurements were made with oxide ion conducting ceramic disks using a series of electrocatalysts in gases containing NO, SO{sub 2} and oxygen. 1 ref., 3 tabs.
Authors:
; ;  [1] ;  [2]
  1. (Helipump Corp., Cleveland, OH (USA))
  2. (IGR Enterprises, Beachwood, OH (USA))
Publication Date:
OSTI Identifier:
6624314
Report Number(s):
DOE/PC/79855-T5
ON: DE90017294
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; TESTING; ELECTROCATALYSTS; SCREENING; FLUE GAS; AIR POLLUTION CONTROL; NITROGEN OXIDES; REDUCTION; SULFUR DIOXIDE; COMBINED SOXNOX PROCESSES; ELECTROCHEMICAL CELLS; ELECTROCHEMISTRY; IONIC CONDUCTIVITY; METALS; OXIDES; PARTICULATES; PROGRESS REPORT; SOLID ELECTROLYTES; CATALYSTS; CHALCOGENIDES; CHEMICAL REACTIONS; CHEMISTRY; CONTROL; DOCUMENT TYPES; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTROLYTES; ELEMENTS; GASEOUS WASTES; NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PARTICLES; PHYSICAL PROPERTIES; POLLUTION CONTROL; SULFUR COMPOUNDS; SULFUR OXIDES; WASTES 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