Mineral oils: processes and products – Phenolic or toxic oils
Patent
1979-08-29
1981-02-03
Vertiz, O. R.
Mineral oils: processes and products
Phenolic or toxic oils
208 48R, 201 2, 196122, 137240, C10G 100, C10G 912, C10G 700
Patent
active
042486920
ABSTRACT:
A process for removing an agglomerate of accumulated materials including ash concentrate which collects within the first heavy phase withdrawal conduit of a coal deashing system employing solvent at elevated temperatures and pressures near the critical temperature of the solvent. A carrier fluid is introduced into the first heavy phase withdrawal conduit simultaneously with or after pressure reduction of the heavy phase under conditions such that a turbulent flow profile is developed within the withdrawal conduit which results in the removal of at least a substantial portion of any accumulated materials within the withdrawal conduit.
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Knebel Alfred H.
Rhodes Donald E.
Addison William G.
Kerr-McGee Chemical Corporation
Straub Gary P.
Vertiz O. R.
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