A new gas turbine cogeneration system for biomass

Conference · Thu Jul 01 00:00:00 EDT 1999

OSTI ID:20030551

Tolman, R; Xu, S; Parkinson, W J

A patented process is evaluated that uses supercritical water above 221 bar (3,205 psia) and 374 C (705 F) in a modified heat recovery steam generator (HRSG) to provide clean gas turbine fuel from slurries and emulsions of biomass-derived materials. Combining the HRSG with a special condensing turbine and a modern gas turbine promises to increase power output and efficiency in a new Vapor Transmission Cycle. The new cycle has been evaluated by computer-based process simulation model that includes material and energy balances that simulate commercial-scale operations. Results predict over 40% thermal efficiency to electric power from mixed refuse and sewage sludge at more than 80% water by weight. This high efficiency is predicted even though fixed carbon is rejected from the system with ash and inorganics to minimize carbon dioxide and other emissions. The cost and schedule advantages of natural gas-fired combined cycle systems appear to be preserved.

• Research Organization: Environmental Energy Systems, Inc., Santa Fe, NM (US)
• OSTI ID: 20030551
• Resource Relation: Conference: Renewable and advanced energy systems for the 21st Century, Maui, HI (US), 04/11/1999--04/15/1999; Other Information: 1 CD-ROM. Operating system required: Windows i386, i486, Pentium or Pentium Pro, MS Windows 3.1, 95 or NT3.51; Macintosh, Power Macintosh with a 68020 or greater processor, System software version 7.1, 3.5 MB RAM; UNIX; PBD: 1999; Related Information: In: Renewable and advanced energy systems for the 21st century, RAES'99: Proceedings, by Hogan, R.; Kim, Y.; Kleis, S.; O'Neal, D.; Tanaka, T. [eds.], [1125] pages.
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
09 BIOMASS FUELS
03 NATURAL GAS
20 FOSSIL-FUELED POWER PLANTS
DUAL-PURPOSE POWER PLANTS
COGENERATION
GAS TURBINES
GASIFICATION
STEAM GENERATORS
HEAT RECOVERY
COMPUTERIZED SIMULATION
THERMAL EFFICIENCY
SEWAGE SLUDGE
INDUSTRIAL WASTES
COMBINED-CYCLE POWER PLANTS
NATURAL GAS