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Primary Examiner: Gantz, Delbert E.
Assistant Examiner: Hellwege, James W.
Attorney: Young & Thompson

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Title: Process for obtaining liquid fuel-oil and/or gaseous hydrocarbons from solid carbonaceous feed stocks

Abstract: A process for forming a fuel-oil from coal. The coal is treated in a low temperature carbonisation retort to give coke, coal-gas and tar-oil. The coke is converted to water-gas which is then synthesised in a Fischer-Tropsch synthesiser to form fuel-oil. The tar-oil is hydrogenated in a hydro-treater by hydrogen produced from the coal-gas. Hydrogen is produced from coal-gas either in a thermal cracking chamber or by reforming the methane content to hydrogen and passing the resultant hydrogen/carbon monoxide mixture through a water-gas shift reactor and a carbon dioxide scrubber.

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Inventors: Hollaway, John William (Eiffel Flats, RH)

Application Number: 530557
Filing Date: 1974-12-09
Publication_date: 1978-02-28
Assignee: Rio Tinto (Rhodesia) Limited (Salisbury, RH)
Primary Class(es): 208/414 48/197R, 208/400, 208/413, 518/704, 518/705
Other Classes:
US Patent Ref:

2605174	Jul, 1952	Krejci	252/373.
2634286	Apr, 1953	Elliot et al.	208/8.
2697718	Dec, 1954	Gohr et al.	208/8.
2719130	Sep, 1955	Stewart	48/197.
2892685	Jun, 1959	Paull	423/655.
3030297	Apr, 1962	Schroeder	208/8.
3231486	Jan, 1966	Perry et al.	208/8.
3503866	Mar, 1970	Skripek et al.	48/197.
3503867	Mar, 1970	Ludlam et al.	48/197.
3552924	Jan, 1971	Hepp	252/373.

Other Refs: Other References: Lowry, H. H., Chemistry of Coal Utilization, vol. II, John Wiley & Sons, New York, 1945, pp. 1804, 1806.