Mineral oils: processes and products – Phenolic or toxic oils
Patent
1979-08-30
1982-04-06
Gantz, Delbert E.
Mineral oils: processes and products
Phenolic or toxic oils
48206, 48210, C10G 100, C10J 300
Patent
active
043234461
ABSTRACT:
A multiple-zone fluidized bed coal conversion process for producing fuel gas and distillate liquid products. The coal is fed into an upper fluidized bed maintained at 950.degree.-1500.degree. F. for devolatilization. The resulting coke and some tars are deposited on a particulate carrier material, which descends along with the larger particles of unreacted coal through a stripping zone into a lower fluidized bed gasification zone, which is maintained at 1700.degree.-2000.degree. F. by steam and O.sub.2 -containing gas introduced therein to gasify the coke and char. Fine particles of unreacted coal and carrier are passed with gas and distillate vapor through a cyclone gas-solids separation step located in the devolatilization zone, from which the solids are returned to the lower bed for further gasification. Ash produced in the lower bed along with the clean hot particulate carrier is transferred through an up-transport tube to the upper bed. The effluent from the devolatilization/hydrogenation zone passes through an external cyclone separator which removes the particles as a disposal stream. Alternatively, the effluent from the devolatilization zone may be passed through a third or uppermost bed of particulate carrier material for heat recovery and more complete removal of tars from the product gas.
REFERENCES:
patent: 2861943 (1958-11-01), Finneran et al.
patent: 3167494 (1965-01-01), Crawford
patent: 3565766 (1971-02-01), Eddinger et al.
patent: 3817723 (1974-06-01), Donath
patent: 4055484 (1977-10-01), Blaser et al.
patent: 4110193 (1978-08-01), Gwyn et al.
patent: 4183800 (1980-01-01), Mitchell et al.
patent: 4213826 (1980-07-01), Eddinger et al.
Chervenak Michael C.
Johanson Edwin S.
Rakow Marvin S.
Gantz Delbert E.
Hydrocarbon Research Inc.
Mallare Vincent A.
Wilson Fred A.
Wright William G.
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