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:
-
- Boardman, OH
- Washington Township, Stark County, OH
- Issue Date:
- Research Org.:
- BABCOCK & WILCOX CO
- OSTI Identifier:
- 874349
- Patent Number(s):
- 6372187
- Assignee:
- McDermott Technology, Inc. (New Orleans, LA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
- 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}
}
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Works referenced in this record:
Uptake of Elemental Mercury Vapors by Activated Carbons
journal, March 1996
- Vidic, Radisav D.; McLaughlin, J. Brendan
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Advanced Emissions Control Development Program
report, October 1998
- Holmes, M. J.
- DE--FC22-94PC94251-20
The fate of mercury in coal-fired power plants and the influence of wet flue-gas desulphurization
journal, April 1991
- Meij, R.
- Water Air & Soil Pollution, Vol. 56, Issue 1