Urea injection NO sub X removal on a 325 MW brown coal-fired electric utility boiler in West Germany

Conference · Mon Jan 01 00:00:00 EST 1990 · Proceedings of the American Power Conference; (United States)

OSTI ID:5907277

Negrea, S; Jones, D G ^[1]; Rose, G ^[2]; Smith, R A; Shimoto, G H ^[3]

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1. Noell-KRC, Visalia, CA (US)
2. Noell-KtK, Ofenbau (DE)
3. Fossil Energy Research Corp. (US)

An advanced urea injection system for NO{sub x} control has been installed and is providing compliance with 200 mg/Nm3 (i.e., about 100 ppm) regulatory requirements on a 325 MW brown coal-fired Block C Offleben boiler operated by Braunschweigische Kohlen-Bergwerke AG (BKB), a Wester German electric utility company. The boiler is part of BKB's Offleben plant, located near Hannover on the border with East Germany. This paper concludes that proper urea injection system design (i.e., injection nozzle parameters and nozzle locations), combined with proper operation and adjustment of automatic load-following control, has provided BKB with a reliable means of compliance with NO{sub x} control regulations. Of particular importance in this application was achieving low levels of NH{sub 3} slip, which would have otherwise combined with sulfur oxides, causing deposits and/or air preheater fouling.

• OSTI ID: 5907277
• Report Number(s): CONF-9004133-; CODEN: PAPWA
• Journal Information: Proceedings of the American Power Conference; (United States), Vol. 52; Conference: 52. American power conference, Chicago, IL (United States), 23-25 Apr 1990; ISSN 0097-2126
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
01 COAL, LIGNITE, AND PEAT
54 ENVIRONMENTAL SCIENCES
FLUE GAS
DENITRIFICATION
FOSSIL-FUEL POWER PLANTS
AIR POLLUTION CONTROL
NITROGEN OXIDES
ELECTRIC UTILITIES
GERMANY
INJECTION
NOZZLES
POLLUTION REGULATIONS
UREA
AMIDES
CARBONIC ACID DERIVATIVES
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
GASEOUS WASTES
INTAKE
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POWER PLANTS
PUBLIC UTILITIES
REGULATIONS
THERMAL POWER PLANTS
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
010800 - Coal
Lignite
& Peat- Waste Management
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
200700 - Fossil-Fueled Power Plants- Legislation & Regulations- (1990-)