Process for the production of solvent-refined coal useful as starting material for other carbonaceous products
A process is disclosed for the production of solvent-refined coal useful as a starting material for micromosaic carbonaceous products and having an O/C atomic ratio of 0.040 to <0.046, or useful as a starting material for coarse mosaic carbonaceous products and having an O/C atomic ratio of 0.030 to <0.040 or useful as a starting material for needle like carbonaceous products and having an O/C atomic ratio of less than 0.030. The process comprises dissolving in a hydrocarbon solvent a coal intrinsically having an O/C atomic ratio of 0.030 to <0.055 or a coal pretreated with a solvent, under hydrogen pressure, so as to have an O/C atomic ratio of 0.030 to <0.055, and heating the resultant coal solution under a pressure of hydrogen for a period of time sufficient to form said solvent-refined coal.
- Assignee:
- Mitsui Coke Co. Ltd.
- Patent Number(s):
- US 4202756
- OSTI ID:
- 5787621
- Resource Relation:
- Patent Priority Date: Priority date 14 Jan 1977, Japan
- Country of Publication:
- United States
- Language:
- English
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