| 摘要 |
1481690 Hydrogenation of coal COAL INDUSTRY (PATENTS) Ltd 8 Nov 1974 [27 Nov 1973] 55020/73 Heading C5E Coal is hydrogenatively treated by contacting at 300-550‹ C. with carbon monoxide, water and a gaseous organic solvent which comprises one or more solvent components which are above their critical temperatures at the reaction temperature, separating the reaction products in the gaseous phase from the residue and thereafter recovering the reaction products from the gaseous phase. The treatment can be carried out in an autoclave using coal, sized to pass a 5 mm. mesh screen, a carbon monoxide partial pressure of 20-250 atmospheres, and 200-800 g. carbon monoxide per kilogram of coal. The preferred solvent is toluene; other solvent components listed have critical temperatures of 150-450‹ C. and can be benzene, alkylbenzenes, cycloali. phatic hydrocarbons, naphthalene, methylnaphthalene, bisphenyl, bisphenylmethane, C 5-16 acyclic aliphatic hydrocarbons, phenol and anisole.
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