Coal liquefaction using vacuum distillation and an external resi

Details Coal liquefaction using vacuum distillation and an external resi Coal liquefaction using vacuum distillation and an external resi

1982-10-15

1985-04-09

Wright, William G.

Mineral oils: processes and products

Products and compositions

Lubricating oils

208 8LE, C10G 106, C10G 100

Patent

active

045100381

ABSTRACT:
A process for liquefying coal in which a slurry comprising a petroleum or petroleum-derived solvent and particulate coal is heated in a dissolution zone to substantially dissolve the coal and produce a first effluent containing undissolved solids to which petroleum residuum is added to produce a second effluent which is distilled under reduced pressure. The process eliminates the need for physical solids separation such as filtration or centrifugation and is most advantageously employed in high-severity coal liquefaction.

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