A comparison of the Ahlstrom Pyroflow{reg_sign} pressurized circulating fluidized bed and competing pressurized bubbling fluidized bed combustion technologies

Conference · Sun Dec 31 00:00:00 EST 1995

OSTI ID:245028

Provol, S J ^[1]; Matousek, W F ^[1]

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1. Ahlstrom Pyropower, Inc., San Diego, CA (United States)

Pressurized Circulating Fluidized Bed (PCFB) and Pressurized Bubbling Fluidized Bed (PBFB) both show great promise for clean, efficient, and coeffective generation of electricity during the next century. Ahlstrom Pyropower, Inc. (API) has been involved in the development of the Ahlstrom PYROFLOW{reg_sign} PCFB technology since 1986. API operates a 10 MWth PCFB Test Facility at its Hans Ahlstrom Laboratory in Karhula, Finland. To date, more than 6,000 hours of operation and testing of the PCFB with various coals have been completed using the PCFB Test Facility. A project to demonstrate the PCFB system in the 120 MWe scale, is in the engineering phase under the DOE Clean Coal 3 Technologies Program. That demonstration is scheduled to start operation in 1998. This will provide a market for competing options for users of Pressurized Fluidized Bed Systems in the future. This paper will present a brief description of the PCFB process, followed by a comparison of certain key aspects of the PCFB and PBFB technologies. These aspects include the effects of gas residence time and solids/gas contacting on combustion efficiency and emissions, complexity of fuel feed systems, pressure parts arrangement and erosion considerations, component sizes and plant space requirements, and plant operation and load following.

• OSTI ID: 245028
• Report Number(s): CONF-950522-; ISBN 0-7918-1305-3; TRN: IM9627%%394
• Resource Relation: Conference: 13. international conference on fluidized-bed combustion, Orlando, FL (United States), 7-10 May 1995; Other Information: PBD: 1995; Related Information: Is Part Of 13. international conference on fluidized bed combustion: Proceedings. Volume 1; Heinschel, K.J. [ed.] [Air Products and Chemicals, Inc., Allentown, PA (United States)]; PB: 719 p.
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
FLUIDIZED-BED COMBUSTORS
PERFORMANCE
PRESSURIZATION
CIRCULATING SYSTEMS
COMPARATIVE EVALUATIONS
PARAMETRIC ANALYSIS
COAL
FLUIDIZED-BED COMBUSTION
TIME DEPENDENCE
SULFUR DIOXIDE
NITROGEN OXIDES
AIR POLLUTION CONTROL
SORBENT INJECTION PROCESSES
LIMESTONE
AMMONIA
FLUID INJECTION
FUEL FEEDING SYSTEMS
SIZE
LOAD MANAGEMENT
TEMPERATURE CONTROL