Mineral oils: processes and products – By treatment of solid mineral – e.g. – coal liquefaction – etc. – Plural hydrogenation steps
Patent
1985-11-08
1989-04-04
Doll, John
Mineral oils: processes and products
By treatment of solid mineral, e.g., coal liquefaction, etc.
Plural hydrogenation steps
208417, 208422, 208435, C10G 106
Patent
active
048183741
ABSTRACT:
A process for converting coal to an oil fraction, which comprises subjecting coal to a first hydrogenation reaction, deashing the reaction product of the first hydrogenation reaction and subjecting the deashed liquefied oil to a second hydrogenation reaction, wherein coal, a solvent and hydrogenation-treated heavy oil components are supplied for the first hydrogenation reaction; from the first hydrogenation reaction product, at least a part of the oil fraction is obtained; from the first hydrogenation reaction product, a substantial amount of preasphaltene components is removed simultaneously with or independently of the deashing operation, and the deashed liquefied oil containing heavy oil components and not greater than 20% by weight of preasphaltene components thereby obtained, is supplied for the second hydrogenation reaction; from the second hydrogenation reaction product, an oil fraction and heavy oil components are separated and the heavy oil components are recycled to the first hydrogenation reaction in an amount of at least 20% by weight relative to the heavy oil components in said deashed liquefied oil.
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Hirokoh Nobuyoshi
Kageyama Yoichi
Matsumura Tetsuo
Nakako Yukio
Asia Oil Company Limited
Doll John
Idemitsu Kosan Company Limited
Kabushiki Kaisha Kobe Seiko Sho
Mitsubishi Chemical Industries Ltd.
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