Mineral oils: processes and products – Phenolic or toxic oils
Patent
1982-05-13
1985-08-27
Gantz, D. E.
Mineral oils: processes and products
Phenolic or toxic oils
208 10, C10G 100, C10G 106
Patent
active
045376751
ABSTRACT:
New solvent compositions and a new two-stage direct coal liquefaction process are provided which permit control of the liquid product state from one consisting primarily of low boiling distillate to one consisting primarily of high boiling fuel oil. The use of the new solvent composition in the process significantly increases distillable liquid yields from coal or lignites. The preferred solvent contains from about 0 to 100 weight percent of pyridine-soluble bottoms, i.e., mineral matter-free normally solid dissolved coal, in which the hydrogen content is maintained at an optimum level by adding from about 0.05 to about 2.0 weight percent hydrogen in a hydrotreating step and from about 0 to 100 weight percent of a coal-derived distillate boiling below about 800.degree. F. to about 1000.degree. F.
REFERENCES:
patent: 3679573 (1972-07-01), Johnson
patent: 4054504 (1977-10-01), Chervenak et al.
patent: 4134821 (1979-01-01), Gorin
patent: 4159236 (1979-06-01), Schmid
patent: 4159237 (1979-06-01), Schmid
patent: 4159238 (1979-06-01), Schmid
patent: 4189371 (1980-02-01), Maa
patent: 4189375 (1980-02-01), Kirby et al.
patent: 4203823 (1980-05-01), Carr et al.
patent: 4221631 (1980-09-01), Hellerqvist et al.
patent: 4222847 (1980-09-01), Carr et al.
patent: 4222848 (1980-09-01), Carr et al.
patent: 4227991 (1980-10-01), Carr et al.
patent: 4230556 (1980-10-01), Carr et al.
patent: 4255248 (1981-03-01), Rosenthal et al.
patent: 4264429 (1981-04-01), Rosenthal et al.
patent: 4264430 (1981-04-01), Kuehler
patent: 4318797 (1982-03-01), Jager et al.
patent: 4328088 (1982-05-01), Anderson et al.
patent: 4347117 (1982-08-01), Bauman et al.
patent: 4356077 (1982-10-01), Che
patent: 4369106 (1983-01-01), Aldridge
patent: 4372838 (1983-02-01), Kulik et al.
patent: 4374015 (1983-02-01), Brule
patent: 4452688 (1984-06-01), Mitchell et al.
M. S. Thesis, "Solvent Effects on Non-Catalytic Wyodak Coal Hydroliquefaction," Miller, Ronald L., May 1979.
DOE Report, "The Effect of Solvent Characteristics on Coal Liquefaction" Silver and Hurtubise, Jul. 15, 1980.
DOE Report, "EDS Coal Liquefaction Process Development," Phases IV-V, Exxon, Mar. 1981.
Miller Ronald L.
Silver Howard F.
Gantz D. E.
In-Situ, Inc.
Wright William G.
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