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Title: Flue gas desulfurization/denitrification using metal-chelate additives

Abstract

A method of simultaneously removing SO.sub.2 and NO from oxygen-containing flue gases resulting from the combustion of carbonaceous material by contacting the flue gas with an aqueous scrubber solution containing an aqueous sulfur dioxide sorbent and an active metal chelating agent which promotes a reaction between dissolved SO.sub.2 and dissolved NO to form hydroxylamine N-sulfonates. The hydroxylamine sulfonates are then separated from the scrubber solution which is recycled.

Inventors:
 [1];  [2];  [3]
  1. Naperville, IL
  2. Glen Ellyn, IL
  3. Deerfield, IL
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
865986
Patent Number(s):
4612175
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
flue; gas; desulfurization; denitrification; metal-chelate; additives; method; simultaneously; removing; oxygen-containing; gases; resulting; combustion; carbonaceous; material; contacting; aqueous; scrubber; solution; containing; sulfur; dioxide; sorbent; active; metal; chelating; agent; promotes; reaction; dissolved; form; hydroxylamine; n-sulfonates; sulfonates; separated; recycled; oxide sorbent; simultaneously removing; scrubber solution; metal chelating; gas desulfurization; active metal; solution containing; carbonaceous material; sulfur dioxide; chelating agent; flue gas; flue gases; gases resulting; /423/999/

Citation Formats

Harkness, John B. L., Doctor, Richard D, and Wingender, Ronald J. Flue gas desulfurization/denitrification using metal-chelate additives. United States: N. p., 1986. Web.
Harkness, John B. L., Doctor, Richard D, & Wingender, Ronald J. Flue gas desulfurization/denitrification using metal-chelate additives. United States.
Harkness, John B. L., Doctor, Richard D, and Wingender, Ronald J. Wed . "Flue gas desulfurization/denitrification using metal-chelate additives". United States. https://www.osti.gov/servlets/purl/865986.
@article{osti_865986,
title = {Flue gas desulfurization/denitrification using metal-chelate additives},
author = {Harkness, John B. L. and Doctor, Richard D and Wingender, Ronald J},
abstractNote = {A method of simultaneously removing SO.sub.2 and NO from oxygen-containing flue gases resulting from the combustion of carbonaceous material by contacting the flue gas with an aqueous scrubber solution containing an aqueous sulfur dioxide sorbent and an active metal chelating agent which promotes a reaction between dissolved SO.sub.2 and dissolved NO to form hydroxylamine N-sulfonates. The hydroxylamine sulfonates are then separated from the scrubber solution which is recycled.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {1}
}

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