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Synthetic oil from coal—the economic impact of five alternatives for making hydrogen from coal and steam
Author(s) -
Moore H. F.,
Kim E. T.,
Kermode R. I.
Publication year - 1979
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440030106
Subject(s) - coal , waste management , discounted cash flow , environmental science , engineering , cash flow , economics , accounting
The economics of liquefying coal by catalytic hydrogenation have been examined for five cases. the first three cases determined the effect upon the cost of syncrude of producing a syngas from coal and steam suitable for making hydrogen at pressures of 44·7 psia, 500 psia and 1000 psia. In the fourth case a carbonization step was included which produced a char suitable for gasification and a liquid product which was upgraded to a syncrude consuming 2000 SCF of hydrogen per bbl. In the last case all of the coal was liquefied and a vacuum bottoms material gasified to produce hydrogen. For all five cases the cost of syncrude was calculated using discounted cash flow (DCF) rates of 10, 15, and 20 per cent coal costs of $10, $20, $30 and $40 per ton, and several methods of by‐product fuel valuation. Sensitivity analysis was performed on the operating costs, plant life, operating attainment schedule, and method of financing. Finally, a cost comparison between syncrude and natural World oil in the years 1985 and 1990, assuming yearly inflation rates of 5 and 10 per cent, has been made.