Gasoline upgrading by aromatics amination

Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,... – With subsequent diverse conversion

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585310, 208 49, 208144, 564419, 564420, C07C 502, C07C 522

Patent

active

052849848

ABSTRACT:
A method for upgrading an aromatics-containing charge composition boiling in the gasoline boiling range comprises i) contacting the charge composition with a nitrating agent under nitrating conditions to form a product comprising nitrated aromatics; ii) hydrogenating a feed containing the product of i) under conditions sufficient to substantially reduce the nitro group of the nitrated aromatics so as to form a product comprising aromatic amines, water and heavy amines; and iii) removing the water and heavy amines from the product of step ii) to provide a gasoline boiling range product of an octane rating greater than the charge composition.

REFERENCES:
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patent: 2402439 (1946-06-01), Owen et al.
patent: 2402440 (1946-06-01), Owen et al.
patent: 2415817 (1947-02-01), Gohr et al.
patent: 2421608 (1947-06-01), Gohr
patent: 2432087 (1947-12-01), Brown
patent: 4746420 (1988-05-01), Darian et al.
J. F. Kung et al., "Production of Xylidines by High Pressure Hydrogenation", Esso Standard Oil Company (Louisiana Division),(Aug. 1948).
G. H. Unzelman, et al., "Are There Substitutes For Lead Anitknocks?", American Petroleum Institute's Division of Refining (1971).
C. L. Brown et al., "Production of Xylidines by High Pressure Hydrogenation", Standard Oil Development Co., (1948).
T. Iida, "Aromatic Aminer as Antiknock Compounds", Japan Petroleum Inst. Journal, (1971).
DeLargey, R. J. et al., "New Xylidine Process Revealed", Shell Publishing Corp., (1948).
"Arylamines", Industrial and Engineering Chemistry, (1948).

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