Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1975-02-27
1976-04-06
Gantz, Delbert E.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
48197R, 208 48Q, 208 52R, 208 52CT, 208107, 208108, 208112, 208114, 208125, 208251H, 208292, 208298, 208131, 208209, 208235, 208248, 208288, 252411A, 252416, 252420, 252432, 252477R, 260683R, C10G 1306, B01J 3512, B01J 2102, B01J 2304
Patent
active
039487598
ABSTRACT:
Heavy hydrocarbon feedstocks, such as atmospheric and vacuum residua, heavy crude oils and the like, are converted to predominantly liquid hydrocarbon products by contacting said feedstocks in the presence of hydrogen with a regenerable alkali metal carbonate molten medium containing a glass-forming oxide, such as boron oxide, at a temperature in the range of from above about the melting point of said molten medium to about 1000.degree.F. and at elevated pressures. Preferably, the regenerable molten medium comprises an oxide of boron in combination with a mixture of sodium and lithium carbonate or a mixture of sodium carbonate, potassium carbonate and lithium carbonate. The carbonaceous materials (coke) which are formed in the molten medium during the above-described conversion process are gasified by contacting said carbonaceous materials with a gaseous stream containing oxygen, steam, or carbon dioxide at temperatures of from above about the melting point of said medium to about 2000.degree.F. in order to gasify said carbonaceous materials and thereby regenerate the molten medium. The conversion of a heavy hydrocarbon feedstock by the above-described process reduces the viscosity of the feedstock and thereby produces increased proportions of predominantly liquid hydrocarbon products of the motor fuel range, fuel oils and lubricant basestocks.
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Gaspar Noel J.
King Laurence F.
Pasternak Israel S.
Ditsler John W.
Exxon Research and Engineering Company
Gantz Delbert E.
Schmitkons Geo. E.
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