Mineral oils: processes and products – Products and compositions – Lubricating oils
Patent
1978-07-03
1980-05-20
Gantz, Delbert E.
Mineral oils: processes and products
Products and compositions
Lubricating oils
48210, C10G 106, C10J 300
Patent
active
042038235
ABSTRACT:
This invention relates to a combination coal liquefaction-gasification process wherein hydrocarbonaceous mineral residue-containing slurry from the liquefaction zone is recycled to the liquefaction zone and all non-recycled hydrocarbonaceous mineral residue-containing slurry is passed to a gasification zone for conversion to synthesis gas to supply hydrogen for the liquefaction zone. It has now been discovered that in this process a surprisingly high reaction selectivity in favor of the desired distillate oil product is achieved by combining low liquefaction zone residence times and relatively high rates of recycle of mineral residue-containing slurry compared to feed coal rate. Under these conditions the yield of the desired distillate oil product can be increased to an unexpectedly high level while the yields of both higher and lower boiling products are each being decreased and while hydrogen consumption is being reduced.
REFERENCES:
patent: 3671418 (1972-06-01), Gatsis
patent: 3884794 (1975-05-01), Bull et al.
patent: 3884796 (1975-05-01), Hinderliter et al.
The SCR-II Process, paper presented at the 3rd Annual International Conference on Coal Gasification and Liquefaction, U. of Pitt., Aug. 3-5, 1976, B. K. Schmid & D. M. Jackson, Gulf Mineral Resources Co., 1720 Bellaire, Denver, Co. 80222.
Carr Norman L.
Schleppy, Jr. Ronald
Schmid Bruce K.
Shah Yatish T.
Gantz Delbert E.
Gulf Research & Development Company
Wright William G.
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