Gas improves hog-fuel boiler performance

Journal Article · Tue Mar 01 00:00:00 EST 1994 · Plant Engineering; (United States)

OSTI ID:7040879

One of the boilers at the Harmac Pulp Division of MacMillan Bloedel (MMB) in Nanaimo, British Columbia had a history of somewhat unstable combustion. It was subject to secondary combustion puffs caused by the delayed ignition of combustible gases generated at the grate level. The gases wouldn't ignite until they flowed upward about 15 to 20 feet in the furnace and reached the vicinity of the oil burner. Once they ignited, they produced a large, heavy furnace pressurization or puff. What MMB needed to eliminate the puffs and stabilize operations was an ignition source closer to the grate. That way, the gases would ignite sooner and at a point at which the air supply was adequate. With the help of Inproheat, the Coen Company of Burlingame, CA, the Coen Company of Canada (CBC), and natural gas, MMB was able to achieve its goal. The paper describes the boiler conversion and its performance with natural gas cofiring.

• OSTI ID: 7040879
• Journal Information: Plant Engineering; (United States), Vol. 48:4; ISSN 0032-082X
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
09 BIOMASS FUELS
NATURAL GAS
COCOMBUSTION
WOOD BURNING FURNACES
COMBUSTION CONTROL
WOOD WASTES
DESIGN
GAS BURNERS
MODIFICATIONS
OIL BURNERS
PAPER INDUSTRY
APPLIANCES
BURNERS
CHEMICAL REACTIONS
COMBUSTION
CONTROL
ENERGY SOURCES
EQUIPMENT
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
FURNACES
GAS FUELS
GASES
INDUSTRY
OXIDATION
SOLID WASTES
THERMOCHEMICAL PROCESSES
WASTES
WOOD BURNING APPLIANCES
WOOD PRODUCTS INDUSTRY
034000* - Natural Gas- Combustion
092000 - Biomass Fuels- Combustion- (1990-)