Mineral oils: processes and products – Phenolic or toxic oils
Patent
1980-04-14
1982-04-27
Gantz, Delbert E.
Mineral oils: processes and products
Phenolic or toxic oils
208 11R, 201 25, 201 36, 165DIG5, C10G 106
Patent
active
043269443
ABSTRACT:
A method is disclosed for recovering liquids and gases by a rapid hydropyrolysis of carbonaceous solids which comprises subjecting the carbonaceous material in a stream of carrier gas to a first pressure and a first temperature below the decomposition temperature of the carbonaceous material; reducing substantially in a single step the pressure on the stream of carbonaceous material from the first pressure to a second pressure, the ratio of the first pressure to the second pressure being at least 1.6, thereby accelerating the carrier gas in the stream of carbonaceous material; permitting the accelerated stream of carbonaceous material to expand as a free jet and mixing hot gas with the accelerated and expanded stream of carbonaceous material to raise the temperature of the carbonaceous material by heat exchange with the hot gas, to a second temperature of at least the aforesaid decomposition temperature, thereby initiating decomposition of the carbonaceous material; and reducing the temperature of the reaction mixture to below said decomposition temperature, with the total time for heating the carbonaceous material from the first temperature to the second temperature, decomposing the carbonaceous material and cooling the reaction mixture to below said decomposition temperature being from about 1 millisecond to about 10 seconds.
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AVCO Everett Research Laboratory, Inc., Coal Gasification, Chem. from Coal, MHD Power Generation, Coal Feed Control, Coal Slag Technology, 2385 Revere Beach Parkway, Everett, Mass. 02149.
Forgac John M.
Meyer James S.
Robinson Ken K.
Tatterson David F.
Chaudhuri Olik
Gantz Delbert E.
Henes James R.
Magidson William H.
McClain William T.
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