Two-stage coal liquefaction process with interstage guard bed

Details Two-stage coal liquefaction process with interstage guard bed Two-stage coal liquefaction process with interstage guard bed

1978-09-18

1981-08-11

Gantz, Delbert E.

Mineral oils: processes and products

Phenolic or toxic oils

208 10, 208 89, 208 91, C10G 100, C10G 106, C10G 4500, C10G 2500

Patent

active

042832683

ABSTRACT:
An improved coal liquefaction process is disclosed wherein subdivided coal is substantially dissolved in a process-derived solvent in the presence of added hydrogen, thereby forming a mixture of dissolved coal, solvent and insoluble solids, and said mixture is passed through a guard bed of solid porous contact material, such as alumina, in the presence of hydrogen, to deposit titanium, iron and calcium from the mixture prior to hydrocracking.

REFERENCES:
patent: 2956004 (1960-10-01), Conn et al.
patent: 2987470 (1961-06-01), Turken
patent: 3365389 (1968-01-01), Spars et al.
patent: 4018663 (1977-04-01), Karr
patent: 4083769 (1978-04-01), Hildebrand et al.
patent: 4111788 (1978-09-01), Chervenak et al.
patent: 4151072 (1979-04-01), Nowack et al.

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