Second-Generation Pressurized Fluidized Bed Combustion: Small gas turbine industrial plant study

Fuel Gas ◽

Combustion Gas ◽

New Type ◽

In the search for a more efficient, less costly, and more environmentally responsible method for generating electrical power from coal, research and development has turned to advanced pressurized fluidized bed combustion (PFBC) and coal gasification technologies. A logical extension of this work is the second-generation PFBC plant, which incorporates key components of each of these technologies. In this new type of plant, coal is devolatilized/carbonized before it is injected into the PFB combustor bed, and the low-Btu fuel gas produced by this process is burned in a gas turbine topping combustor. By integrating coal carbonization with PFB coal/char combustion, gas turbine inlet temperatures higher than 1149°C (2100°F) can be achieved. The carbonizer, PFB combustor, and particulate-capturing hot gas cleanup systems operate at 871°C (1600°F), permitting sulfur capture by time-based sorbents and minimizing the release of coal contaminants to the gases. This paper presents the performance and economics of this new type of plant and provides a brief overview of the pilot plant test programs being conducted to support its development.

Second-Generation Pressurized Fluidized Bed Combustion: Small gas turbine induustrial plant study

10.2172/7100991 ◽

1992 ◽

Author(s):

J Shenker ◽

R Garland ◽

D Horazak ◽

F Seifert ◽

R Wenglarz

Keyword(s):

Gas Turbine ◽

Fluidized Bed ◽

Second Generation ◽

Effect of Pressure on Second-Generation Pressurized Fluidized Bed Combustion Plants

Volume 3C: General ◽

10.1115/93-gt-357 ◽

1993 ◽

Cited By ~ 1

Author(s):

Archie Robertson ◽

Donald Bonk

Keyword(s):

Gas Turbine ◽

Fluidized Bed ◽

Coal Gasification ◽

Second Generation ◽

Electrical Power ◽

Fuel Gas ◽

Combustion Gas ◽

New Type ◽

In the search for a more efficient, less costly, and more environmentally responsible method for generating electrical power from coal, research and development has turned to advanced pressurized fluidized bed combustion (PFBC) and coal gasification technologies. A logical extension of this work is the second-generation PFBC plant, which incorporates key components of each of these technologies. In this new type of plant, coal is devolatilized/carbonized before it is injected into the PFB combustor bed, and the low-Btu fuel gas produced by this process is burned in a gas turbine topping combustor. By integrating coal carbonization with PFB coal/char combustion, gas turbine inlet temperatures higher than 1149°C (2100°F) can be achieved. The carbonizer, PFB combustor, and particulate-capturing hot gas cleanup systems operate at 871°C (1600°F), permitting sulfur capture by lime-based sorbents and minimizing the release of coal contaminants to the gases. This paper presents the performance and economics of this new type of plant and provides a brief overview of the pilot plant test programs being conducted to support its development.

Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations ◽

Materials Issues for PFBC Expander Turbines

10.1115/90-gt-293 ◽

1990 ◽

Author(s):

John Stringer

Keyword(s):

Gas Turbine ◽

Fluidized Bed ◽

Second Generation ◽

Inlet Temperature ◽

Turbine Inlet Temperature ◽

Erosion Corrosion ◽

Potential Problems ◽

Available Information ◽

Several large pressurized fluidized bed combustion systems have recently been installed. In addition, second-generation concepts are being developed, in which the turbine inlet temperature will be appreciably higher. The durability of the gas turbine expander remains a question for the technology, and experience is limited. The available information is presented, and the potential problems of erosion, corrosion, and erosion/corrosion are discussed.