Effect of product upgrading on Fischer-Tropsch indirect coal liquefaction economics

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:257218

Choi, G N; Kramer, S J; Tam, S S ^[1]; Fox, III, J M

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1. Bechtel Corp., San Francisco, CA (United States)

Conceptual plant designs with cost estimates for indirect coal liquefaction technology to produce environmentally acceptable transportation liquid fuels meeting the Clear Air Act requirements were developed for the US Department of Energy (DOE). The designs incorporate the latest development in coal gasification technology and advanced Fischer-Tropsch (F-T) slurry reactor design. ASPEN process simulation models were developed to provide detailed plant material and energy balances, utility requirements, operating and capital costs. A linear programming model based on a typical PADD II refinery was developed to assess the values of the produced F-T products. The results then were used in a discounted cash flow spreadsheet model to examine the effect of key process variables on the overall F-T economics. Different models were developed to investigate the various routes of upgrading the F-T products. The effects of incorporating a close-coupled ZSM-5 reactor to upgrade the vapor stream leaving the Fischer-Tropsch reactor have been reported previously. This paper compares two different schemes of F-T was upgrading, namely fluidized bed catalytic cracking verse mild hydrocracking.

• OSTI ID: 257218
• Report Number(s): CONF-950952--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
AUTOMOTIVE FUELS
CARBON MONOXIDE
CATALYTIC CRACKING
COAL GASIFICATION PLANTS
COMPARATIVE EVALUATIONS
COST ESTIMATION
ECONOMIC ANALYSIS
ENERGY BALANCE
FISCHER-TROPSCH SYNTHESIS
FLOWSHEETS
HYDROCRACKING
MATERIAL BALANCE
MATHEMATICAL MODELS
METHANATION
NAPHTHA
PRODUCTION
SYNTHESIS GAS
WAXES
ZEOLITES