Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1980-08-28
1984-06-05
Gantz, Delbert E.
Mineral oils: processes and products
Products and compositions
Lubricating oils
208 8LE, C10G 106, C10G 100
Patent
active
044526881
ABSTRACT:
Hydrogen conservation in solvent refining of coal is practiced and solvent compositions and adjusted to needs of two stage operation. The first stage is a short residence time dissolution in a recycle solvent rich in phenols and polyaromatics of high boiling range. The solvent is enriched for the second stage in low boiling hydrogen donors and the product of the process undergoes hydrotreating in an integrated process.
REFERENCES:
patent: 3598718 (1971-08-01), Gleim et al.
patent: 3607716 (1971-09-01), Roach
patent: 3607717 (1971-09-01), Roach
patent: 3679573 (1972-07-01), Johnson
patent: 3700584 (1972-10-01), Johanson et al.
patent: 3923634 (1975-12-01), Silvestri et al.
patent: 4133646 (1979-01-01), Farcosin et al.
Mitchell Thomas O.
Whitehurst Darrell D.
Electric Power Research Institute
Gantz Delbert E.
Wright William G.
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