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Title: Alkaline sorbent injection for mercury control

Abstract

A mercury removal system for removing mercury from combustion flue gases is provided in which alkaline sorbents at generally extremely low stoichiometric molar ratios of alkaline earth or an alkali metal to sulfur of less than 1.0 are injected into a power plant system at one or more locations to remove at least between about 40% and 60% of the mercury content from combustion flue gases. Small amounts of alkaline sorbents are injected into the flue gas stream at a relatively low rate. A particulate filter is used to remove mercury-containing particles downstream of each injection point used in the power plant system.

Inventors:
 [1];  [2]
  1. (Boardman, OH)
  2. (Washington Township, Stark County, OH)
Publication Date:
Research Org.:
BABCOCK & WILCOX CO
OSTI Identifier:
874349
Patent Number(s):
US 6372187
Assignee:
McDermott Technology, Inc. (New Orleans, LA) NETL
DOE Contract Number:  
FC22-94PC94251
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
alkaline; sorbent; injection; mercury; control; removal; removing; combustion; flue; gases; provided; sorbents; extremely; stoichiometric; molar; ratios; earth; alkali; metal; sulfur; 10; injected; power; plant; locations; remove; 40; 60; content; amounts; gas; stream; rate; particulate; filter; mercury-containing; particles; downstream; alkali metal; gas stream; alkaline earth; power plant; flue gas; molar ratio; flue gases; /422/110/423/

Citation Formats

Madden, Deborah A., and Holmes, Michael J. Alkaline sorbent injection for mercury control. United States: N. p., 2002. Web.
Madden, Deborah A., & Holmes, Michael J. Alkaline sorbent injection for mercury control. United States.
Madden, Deborah A., and Holmes, Michael J. Tue . "Alkaline sorbent injection for mercury control". United States. https://www.osti.gov/servlets/purl/874349.
@article{osti_874349,
title = {Alkaline sorbent injection for mercury control},
author = {Madden, Deborah A. and Holmes, Michael J.},
abstractNote = {A mercury removal system for removing mercury from combustion flue gases is provided in which alkaline sorbents at generally extremely low stoichiometric molar ratios of alkaline earth or an alkali metal to sulfur of less than 1.0 are injected into a power plant system at one or more locations to remove at least between about 40% and 60% of the mercury content from combustion flue gases. Small amounts of alkaline sorbents are injected into the flue gas stream at a relatively low rate. A particulate filter is used to remove mercury-containing particles downstream of each injection point used in the power plant system.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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