skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Stochastic modeling of coal gasification combined cycle systems: Cost models for selected integrated gasification combined cycle (IGCC) systems

Abstract

This report documents cost models developed for selected integrated gasification combined cycle (IGCC) systems. The objective is to obtain a series of capital and operating cost models that can be integrated with an existing set of IGCC process performance models developed at the US Department of Energy Morgantown Energy Technology Center. These models are implemented in ASPEN, a Fortran-based process simulator. Under a separate task, a probabilistic modeling capability has been added to the ASPEN simulator, facilitating analysis of uncertainties in new process performance and cost (Diwekar and Rubin, 1989). One application of the cost models presented here is to explicitly characterize uncertainties in capital and annual costs, supplanting the traditional approach of incorporating uncertainty via a contingency factor. The IGCC systems selected by DOE/METC for cost model development include the following: KRW gasifier with cold gas cleanup; KRW gasifier with hot gas cleanup; and Lurgi gasifier with hot gas cleanup. For each technology, the cost model includes both capital and annual costs. The capital cost models estimate the costs of each major plant section as a function of key performance and design parameters. A standard cost method based on the Electric Power Research Institute (EPRI) Technical Assessment Guide (1986)more » was adopted. The annual cost models are based on operating and maintenance labor requirements, maintenance material requirements, the costs of utilities and reagent consumption, and credits from byproduct sales. Uncertainties in cost parameters are identified for both capital and operating cost models. Appendices contain cost models for the above three IGCC systems, a number of operating trains subroutines, range checking subroutines, and financial subroutines. 88 refs., 69 figs., 21 tabs.« less

Authors:
;
Publication Date:
Research Org.:
Carnegie-Mellon Univ., Pittsburgh, PA (USA). Center for Energy and Environmental Studies
Sponsoring Org.:
DOE/FE
OSTI Identifier:
6204034
Report Number(s):
DOE/MC/24248-2901
ON: DE90015345
DOE Contract Number:
AC21-88MC24248
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; COMBINED-CYCLE POWER PLANTS; ECONOMIC ANALYSIS; MATHEMATICAL MODELS; KRW GASIFICATION PROCESS; LURGI PROCESS; A CODES; ASHES; BEAVON PROCESS; CAPITALIZED COST; CLAUS PROCESS; COAL; COAL GAS; COAL-FIRED GAS TURBINES; COMPUTERIZED SIMULATION; COST ESTIMATION; DEASHING; DESIGN; DESULFURIZATION; FLOWSHEETS; GAS GENERATORS; HEAT RECOVERY; HOT GAS CLEANUP; LIMESTONE; MAINTENANCE; MATERIALS HANDLING; NITROGEN OXIDES; OPERATING COST; OXIDIZERS; PARTICULATES; PERFORMANCE; PROBABILITY; REGRESSION ANALYSIS; REMOVAL; SCOT PROCESS; SELEXOL PROCESS; SORBENT INJECTION PROCESSES; STEAM TURBINES; STOCHASTIC PROCESSES; STRETFORD PROCESS; SULFUR DIOXIDE; TECHNOLOGY ASSESSMENT; WATER TREATMENT; CARBONACEOUS MATERIALS; CARBONATE ROCKS; CHALCOGENIDES; CHEMICAL REACTIONS; COAL GASIFICATION; COMPUTER CODES; COST; DIAGRAMS; ECONOMICS; ENERGY RECOVERY; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FUELS; GAS TURBINES; GASES; GASIFICATION; MACHINERY; MATERIALS; MATHEMATICS; NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PARTICLES; POWER PLANTS; PURIFICATION; RECOVERY; RESIDUES; ROCKS; SEDIMENTARY ROCKS; SIMULATION; STATISTICS; SULFUR COMPOUNDS; SULFUR OXIDES; THERMAL POWER PLANTS; THERMOCHEMICAL PROCESSES; TURBINES; TURBOMACHINERY; 010404* - Coal, Lignite, & Peat- Gasification; 200102 - Fossil-Fueled Power Plants- Power Cycles

Citation Formats

Frey, H.C., and Rubin, E.S.. Stochastic modeling of coal gasification combined cycle systems: Cost models for selected integrated gasification combined cycle (IGCC) systems. United States: N. p., 1990. Web.
Frey, H.C., & Rubin, E.S.. Stochastic modeling of coal gasification combined cycle systems: Cost models for selected integrated gasification combined cycle (IGCC) systems. United States.
Frey, H.C., and Rubin, E.S.. 1990. "Stochastic modeling of coal gasification combined cycle systems: Cost models for selected integrated gasification combined cycle (IGCC) systems". United States. doi:.
@article{osti_6204034,
title = {Stochastic modeling of coal gasification combined cycle systems: Cost models for selected integrated gasification combined cycle (IGCC) systems},
author = {Frey, H.C. and Rubin, E.S.},
abstractNote = {This report documents cost models developed for selected integrated gasification combined cycle (IGCC) systems. The objective is to obtain a series of capital and operating cost models that can be integrated with an existing set of IGCC process performance models developed at the US Department of Energy Morgantown Energy Technology Center. These models are implemented in ASPEN, a Fortran-based process simulator. Under a separate task, a probabilistic modeling capability has been added to the ASPEN simulator, facilitating analysis of uncertainties in new process performance and cost (Diwekar and Rubin, 1989). One application of the cost models presented here is to explicitly characterize uncertainties in capital and annual costs, supplanting the traditional approach of incorporating uncertainty via a contingency factor. The IGCC systems selected by DOE/METC for cost model development include the following: KRW gasifier with cold gas cleanup; KRW gasifier with hot gas cleanup; and Lurgi gasifier with hot gas cleanup. For each technology, the cost model includes both capital and annual costs. The capital cost models estimate the costs of each major plant section as a function of key performance and design parameters. A standard cost method based on the Electric Power Research Institute (EPRI) Technical Assessment Guide (1986) was adopted. The annual cost models are based on operating and maintenance labor requirements, maintenance material requirements, the costs of utilities and reagent consumption, and credits from byproduct sales. Uncertainties in cost parameters are identified for both capital and operating cost models. Appendices contain cost models for the above three IGCC systems, a number of operating trains subroutines, range checking subroutines, and financial subroutines. 88 refs., 69 figs., 21 tabs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1990,
month = 6
}

Technical Report:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that may hold this item. Keep in mind that many technical reports are not cataloged in WorldCat.

Save / Share:
  • An assessment of modular integrated gasification combined cycle (IGCC) power plants, based on Texaco entrained flow gasification, having a nominal capacity of 100 megawatts was conducted by Foster Wheeler. The scope of this study consisted of developing preliminary designs and relative economics for five modular IGCC power plant configurations in an effort to compare the use of air or oxygen as the oxidant for coal gasification and high temperature or low temperature processes for gas cleanup. Conceptual designs were prepared based on non-confidential information, estimated capital and operating costs, and determined the cost of electricity for five different modular IGCCmore » plant configurations. In all five plant configurations, the same gas turbine, which is commercially available for conventional fuels, was used. It was assumed that this commercially available gas turbine could be modified without additional cost impact to accept the hot low BTU fuel gas produced from air gasification with high temperature cleanup. 16 refs.« less
  • This report has described a new stochastic modeling capability for the ASPEN chemical process simulator. The stochastic modeling capability can be used to evaluate the performance of any chemical plant which can be formulated using the simulator. An application of this capability to the KRW IGCC system performance model also was illustrated. Cost models for selected IGCC systems also have been developed for implementation in ASPEN, as described in a separate topical report (Frey and Rubin, 1989). These models estimate the capital cost of various plant sections, as well as system operating and maintenance (O and M) costs, and totalmore » annual costs. The economic models are sensitive to key system flow rates and process design parameters, and are fully integrated with the IGCC performance models. The economic models can be used to quantify cost differences in system designs, and to identify key uncertainties important for comparative economic evaluations and research planning. Applications of probabilistic analysis combining uncertainties in performance and cost parameters also can be used to estimate process contingency factors (used in traditional cost analyses to represent additional costs that are expected to occur, but that are not included explicitly in the cost estimate), or to supplant the traditional contingency factor approach by incorporating expert knowledge about uncertainties at the more disaggregated level of process performance and cost parameters. Detailed case studies of IGCC system performance and cost employing the new stochastic modeling capability are planned as part of future efforts in this research. Two appendices are included with this report: technical reference manual for ASPEN stochastic block and users manual for stochastic simulation in ASPEN. 8 refs., 3 figs., 2 tabs.« less
  • Preliminary flat and rough-terrain air-quality modeling of stack emissions was performed for Baltimore Gas and Electric's (BGandE's) proposed Perryman coal-gasification plant using five years (1982-1986) of representative meteorological data from Baltimore-Washington International airport. Results from the air-quality analysis showed that Perryman will not cause or contribute to any exceedances of the NAAQS (when combined with model-predicted impacts from BGandE's Crane power plant, the Harford County resource-recovery facility, and the Pulaski highway incinerator) or the allowable PSD increments. Results also show that, of the local sources examined, the Crane power plant is a major contributor to the impacts in the areamore » near Perryman.« less
  • The document is the final report of a feasibility study conducted by Fluor Daniel for the Petroleum Authority of India. The purpose of the study was to determine the high priority projects for gas pipeline expansion. The high priority projects identified as a result of the study are: a new pipeline from the Erawan Complex to Khanow; a new pipeline from the 'B' structure to the Erawon Complex; and the modernization of the Supervisory Control and Data Acquisition (SCADA)/Telecommunications system. The document discusses the economic and technical feasbility of each of these projects. In addition, other topics, such as currentmore » and projected gas supply, projected gas demand and sources of additional gas, are discussed.« less
  • The IGCC system will consist of CE`s air-blown, entrained-flow, two-stage, pressurized coal gasifier; an advanced hot gas cleanup process; a combustion turbine adapted to use low-Btu coal gas; and all necessary coal handling equipment. The IGCC will include CE`s slogging, entrained-flow, gasifier operating in a pressurized mode and using air as the oxidant. The hot gas will be cleaned of particulate matter (char) which is recycled back to the gasifier. After particulate removal, the product gas will be cleaned of sulfur prior to burning in a gas turbine. The proposed project includes design and demonstration of two advanced hot gasmore » cleanup processes for removal of sulfur from the product gas of the gasifier. The primary sulfur removal method features a newly developed moving-bed zinc ferrite system downstream of the gasifier. The process data from these pilot tests is expected to be sufficient for the design of a full-scale system to be used in the proposed demonstration. A second complementary process is in situ desulfurization achieved by adding limestone or dolomite directly to the coal feed. The benefit, should such an approach prove viable, is that the downstream cleanup system could be reduced in size. In this plant, the gasifier will be producing a low-Btu gas (LBG). The LBG will be used as fuel in a standard GE gas turbine to produce power. This gas turbine will have the capability to fire LBG and natural gas (for start-up). Since firing LBG uses less air than natural gas, the gas turbine air compressor will have extra capacity. This extra compressed air will be used to pressurize the gasifier and supply the air needed in the gasification process. The plant is made of three major blocks of equipment as shown in Figure 2. They are the fuel gas island which includes the gasifier and gas cleanup, gas turbine power block, and the steam turbine block which includes the steam turbine and the HRSG.« less