FGD system retrofit of the Dalhousie Station Units 1&2, an Orimulsion conversion

Technical Report · Thu Jun 01 04:00:00 EDT 1995

OSTI ID:123431

Legere, M ^[1]; Rich, T J; Nischt, W ^[2]

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1. New Brunswick Power (Canada)
2. Babcock & Wilcox, Barberton, OH (United States)

The Dalhousie Thermal Station is an electric generating station owned and operated by New Brunswick Power. The station consists of two boiler units, Unit 1 having a capacity of 100 MW and Unit 2 having a capacity of 215 MW. Both units were converted to burn Orimulsion{trademark} due to the economics of the fuel. Unit 1 returned to service in August, 1994, while Unit 2 returned to service in September, 1994 burning the new fuel. In order to comply with Canadian National Government through Environment Canada emissions standards, New Brunswick Power decided to install a flue gas desulfurization (FGD) system consisting of a single 315 MW absorber module utilizing limestone forced oxidation (LSFO) technology. The unit is designed to generate a marketable grade gypsum product. This paper describes Orimulsion{trademark} and the modifications required to convert the Dalhousie station to Orimulsion{trademark} firing. The FGD system is described and the philosophy used to ensure high reliability in the system is discussed. Commissioning and operational performance results are also presented.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States)
• OSTI ID: 123431
• Report Number(s): EPRI-TR--105258-Vol.2; CONF-950332--Vol.2
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
AIR POLLUTION CONTROL
DESIGN
DESULFURIZATION
FLUE GAS
FOSSIL-FUEL POWER PLANTS
GYPSUM
PERFORMANCE
RETROFITTING
SCRUBBERS
SULFUR DIOXIDE