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

Abstract

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:
Research Org.:
Helipump Corp., Cleveland, OH (USA); IGR Enterprises, Beachwood, OH (USA)
Sponsoring Org.:
DOE/FE
OSTI Identifier:
6624314
Report Number(s):
DOE/PC/79855-T5
ON: DE90017294
DOE Contract Number:
AC22-87PC79855
Resource Type:
Technical Report
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

Citation Formats

Cook, W.J., Hossain, M.S., Neyman, M., and Gordon, A.Z. Simultaneous particulates, NO sub x , SO sub x removal from flue gas by all solid-state electrochemical technology. United States: N. p., 1988. Web.
Cook, W.J., Hossain, M.S., Neyman, M., & Gordon, A.Z. Simultaneous particulates, NO sub x , SO sub x removal from flue gas by all solid-state electrochemical technology. United States.
Cook, W.J., Hossain, M.S., Neyman, M., and Gordon, A.Z. 1988. "Simultaneous particulates, NO sub x , SO sub x removal from flue gas by all solid-state electrochemical technology". United States. doi:.
@article{osti_6624314,
title = {Simultaneous particulates, NO sub x , SO sub x removal from flue gas by all solid-state electrochemical technology},
author = {Cook, W.J. and Hossain, M.S. and Neyman, M. and Gordon, A.Z.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1988,
month =
}

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  • 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 (1) Development of 10 Cubic Feet/Min High Surface Area Electrochemical Reactors and Task (2) Electrocatalyst Preparation and Screening Studies. Task (2) is the screening of electrocatalysts for high oxygen overpotential and low SO{sub 2} and NO{sub x} overpotential. Electrochemical measurements weremore » made with oxide ion conducting ceramic disks in nitric oxide and sulfur dioxide gas mixtures. 1 ref., 9 figs.« less
  • 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. Three tasks were active during this quarter, Task (1) Development of 10 Cubic Feet/Min High Surface Area Electrochemical Reactors, Task (2) Procurement, Construction and Debugging of the Electrochemical Reactors and Particulate Removal System and Task (3) Electrocatalyst Preparation and Screening Studies. Task (3) is the screening of electrocatalysts formore » high oxygen overpotential and low SO{sub 2} and NO{sub x} overpotential. Electrochemical measurements were made with oxide ion conducting ceramic disks in nitric oxide and sulfur dioxide gas mixtures. 2 refs., 10 figs.« less
  • 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 NO{sub x} and SO{sub 2} to nitrogen, sulfur, and oxygen cell. The cell electrolyte is a solid-electrolyte, normally a high surface area ceramic oxide-ion conductor. Tasks this quarter include: Project Work Plan and Electrocatalyst Preparation and Screening Studies of electrocatalysts for high oxygen overpotential and low SO{sub 2} and NO{sub x} overpotential. Tests will be conducted with ceramic disks one inch in diameter. The reactor for disk testing has been built and themore » disks have been aquired. 4 refs., 9 figs.« less
  • The objective is to develop an all solid-state electrochemical technology to control SO{sub x}, NO{sub x}, and particulate emissions from coal combustion flue gases. It is based on a solid-state, electrochemical reactor which reduces NOx and SO{sub 2} to nitrogen, sulfur, and oxygen. The solid electrolyte is a high surface area ceramic oxide-ion conductor such as a stabilized zirconia or ceria. The cell electrodes may be of various electronically conductive materials such as porous, high surface area nickel, silver, or gold. Work was performed in two areas, electrocatalyst preparation and testing and particulate control tests. Transition metal oxide electrocatalysts weremore » tested by applying the electrocatalyst along with gold electrodes to a stabilized ceria solid electrolyte disk and measuring the reduction of NO and SO{sub 2} in gas mixtures containing 0 to 4% oxygen while a voltage was applied to the disk. The high temperature particulate control test apparatus was installed and flyash tests were done. The efficiency of high temperature particulate filters was also tested. 2 refs., 10 figs.« less
  • The objective is to develop an all solid-state electrochemical technology to control SOx, NOx, and particulate emissions from coal combustion flue gases. It is based on a solid-state, electrochemical reactor which reduces NOx and SO{sub 2} to nitrogen, sulfur, and oxygen. Work was performed in the area of electrocatalyst preparation and testing. Transition metal oxides (Ru, Cr, V, W, Co, Mo), mixtures of transition metal oxides and transition metal oxide perovskites were tested as electrocatalysts. The electrocatalyst along with gold electrodes were coated and fired on a yittria stabilized ceria solid electrolyte disk. The reduction of NO and SO{sub 2}more » in gas mixtures containing 0 to 4% oxygen was measured while a voltage was applied to the disk. 3 refs., 5 figs., 4 tabs.« less