Method for suppressing asphaltene formation during coal liquefac

Mineral oils: processes and products – Phenolic or toxic oils

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210 54, C10G 106

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active

040813606

ABSTRACT:
A method for suppressing asphaltene formation during coal liquefaction utilizing a hydrogenated coal solvent having been hydrogenated to remove at least about 80% of the asphaltenes which yields as the primary product a mixture of liquid and solids, a part of which is suspended in the liquid. The solids are effectively removed with a minimum loss of desired product and suppressed asphaltene formation by means of a light aromatic solvent in combination with a hydrogenated coal oil solvent having been hydrogenated to remove at least about 80% of the asphaltenes.

REFERENCES:
patent: 2476999 (1949-09-01), Orchin
patent: 3505203 (1970-04-01), Nelson
patent: 3598718 (1971-08-01), Gleim et al.
patent: 3607716 (1971-09-01), Roach
patent: 3607718 (1971-09-01), Leaders et al.
patent: 3997425 (1976-12-01), Gatsis et al.

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