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Title: The potential for control of carbon dioxide emissions from integrated gasification/combined-cycle systems

Initiatives to limit carbon dioxide (CO{sub 2}) emissions have drawn considerable interest to integrated gasification/combined-cycle (IGCC) power generation, a process that reduces CO{sub 2} production through efficient fuel used is amenable to CO{sub 2} capture. This paper presents a comparison of energy systems that encompass fuel supply, an IGCC system, CO{sub 2} recovery using commercial technologies, CO{sub 2} transport by pipeline, and land-based sequestering in geological reservoirs. The intent is to evaluate the energy-efficiency impacts of controlling CO{sub 2} in such systems and to provide the CO{sub 2} budget, or an to equivalent CO{sub 2}`` budget, associated with each of the individual energy-cycle steps. The value used for the ``equivalent CO{sub 2}`` budget is 1 kg/kWh CO{sub 2}. The base case for the comparison is a 457-MW IGCC system that uses an air-blown Kellogg-Rust-Westinghouse (KRW) agglomerating fluidized-bed gasifier, Illinois No. 6 bituminous coal, and in-bed sulfur removal. Mining, preparation, and transportation of the coal and limestone result in a net system electric power production of 454 MW with a 0.835 kg/kwh CO{sub 2} release rate. For comparison, the gasifier output is taken through a water-gas shift to convert CO to CO{sub 2} and then processed in a glycol-based absorber unitmore » to recover CO{sub 2} Prior to the combustion turbine. A 500-km pipeline then transports the CO{sub 2} for geological sequestering. The net electric power production for the system with CO{sub 2} recovery is 381 MW with a 0.156 kg/kwh CO{sub 2} release rate.« less
Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
10155119
Report Number(s):
ANL/ES/CP--80868; CONF-940632--16
ON: DE94012646
DOE Contract Number:
W-31109-ENG-38
Resource Type:
Technical Report
Resource Relation:
Conference: Annual meeting and exhibition of the Air and Waste Management Association,Cincinnati, OH (United States),19-24 Jun 1994; Other Information: PBD: [1994]
Research Org:
Argonne National Lab., IL (United States)
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; KRW GASIFICATION PROCESS; CARBON MONOXIDE; CONVERSION; CARBON DIOXIDE; RETENTION; WASTE STORAGE; ABSORPTION; MATERIALS RECOVERY; COAL GASIFICATION; COMBINED-CYCLE POWER PLANTS; SHIFT PROCESSES; PIPELINES; ENERGY EFFICIENCY; PROGRESS REPORT; COAL MINING; COAL PREPARATION 540120; 010404; 200102; CHEMICALS MONITORING AND TRANSPORT; GASIFICATION; POWER CYCLES