Hydroliquefaction of coal

Details Hydroliquefaction of coal Hydroliquefaction of coal

C - Chemistry, Metallurgy

10

G

196/5.6

C10G 1/06 (2006.01) C10G 1/08 (2006.01)

Patent

CA 1143310

3930 HYDROLIQUEFACTION OF COAL, Abstract of the Disclosure 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, the stream through the catalyst bed having a length and a liquid and gas superficial velocity to main- tain 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 higher than 2: 1 based on volume. Such conditions provide for improved selectivity to liquid product to thereby reduce hydrogen consumption.

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