Coal extraction process

Details Coal extraction process Coal extraction process

1991-01-16

1992-05-05

McFarlane, Anthony

Mineral oils: processes and products

By treatment of solid mineral, e.g., coal liquefaction, etc.

Using specifically added catalyst during hydrogenation

208413, 208422, C10G 106

Patent

active

051104512

ABSTRACT:
A two stage coal extracting process has a first liquid hydrogen donor solvent oil extraction stage and a second stage comprising catalytic hydrocracking of the extract. Desired levels of hydrocracking and hydrogenation of the extract, with an acceptable level of napthene formation, are achieved by using on the catalyst a mixture of a promoted W or Mo catalyst with an unpromoted W or Mo catalyst.

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