Mineral oils: processes and products – Phenolic or toxic oils
Patent
1980-04-29
1982-02-09
Gantz, Delbert E.
Mineral oils: processes and products
Phenolic or toxic oils
C10G 100
Patent
active
043148980
ABSTRACT:
Improvements in a process for reforming coal by subjecting a mixed slurry containing a hydrocarbon solvent and coal fines to hydrogenation reaction under high temperature and pressure conditions, gas-liquid separation, and distillation to obtain a solvent-refined coal, the improvements comprising: maintaining the reaction temperature and total reaction pressure within a hydrogenation reactor at 400.degree. to 500.degree. C. and 50 to 200 atms., and controlling the residence time distribution of reactants, excepting gaseous reactants, in the hydrogenation reaction zone to have an average residence time longer than 17 minutes, and to keep the quantity of the reactants which have a residence time shorter than 10 minutes in a proportion less than 20% by weight of the reactants.
REFERENCES:
patent: 3508203 (1970-04-01), Nelson
patent: 3594304 (1971-07-01), Seitzer et al.
patent: 3645885 (1972-02-01), Harris et al.
patent: 3892654 (1975-07-01), Wright et al.
patent: 4094765 (1978-06-01), Bearden, Jr. et al.
Nakako Yukio
Ohzawa Toshio
Tamura Masaaki
Yokota Shizuo
(Kobe Steel, Ltd.)
Gantz Delbert E.
Wright William G.
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