Hydroliquefaction of coal

Details Hydroliquefaction of coal Hydroliquefaction of coal

1979-12-21

1982-02-23

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

422140, 422141, 422142, C10G 106, B01J 818

Patent

active

043167934

ABSTRACT:
Coal is catalytically hydroliquefied by passing coal dispersed in a liquefaction solvent and hydrogen upwardly through an expanded catalyst bed in a stream having a cross-sectional flow area of no greater than 255 inches square, with the stream through the catalyst bed having a length and a liquid and gas superficial velocity to maintain an expanded catalyst bed and provide a Peclet Number of at least 3. If recycle is employed, the ratio of recycle to total feed (coal and liquefaction solvent) is no greater than 2:1 based on volume. Such conditions provide for improved selectivity to liquid product to thereby reduce hydrogen consumption.

REFERENCES:
patent: 3644192 (1972-02-01), Le et al.
patent: 3700584 (1972-10-01), Johanson et al.
patent: 3769198 (1973-10-01), Johanson et al.
patent: 3957619 (1976-05-01), Chun et al.
patent: 4045329 (1977-08-01), Johanson et al.

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