Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1976-03-29
1977-08-23
Davis, C.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
208 79, 208 88, 208 93, 208120, 208135, 260449R, 260450, C07C 104
Patent
active
040440648
ABSTRACT:
Upgrading a fraction of a heavy Fischer-Tropsch oil to jet fuel by hydropretreating a 350.degree. to 850.degree. F boiling fraction; separating the hydrotreated product into a 650.degree. F minus and a 650.degree. F plus fraction, separating the650.degree. F minus fraction to provide a 350.degree. F minus naphtha boiling range fraction and a 350.degree. to 650.degree. F light distillate fraction; distilling the 350.degree. to 650.degree. F hydrotreated fraction to provide a fraction boiling in the range of 350.degree. F to 550.degree. F separate from a 550.degree. to 650.degree. F fraction processing either of the 650.degree. F plus fraction above separated or the 350.degree. to 550.degree. F boiling fraction above obtained over a catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least 12 and a constraint index of 1 to 12 with hydrogen, at a temperature of about 500.degree. to 800.degree. F, a hydrogen partial pressure of about 100 to 800 psig and a space velocity in the range of about 0.5 to 5 LHSV to produce a converted product comprising lower boiling hydrocarbons than the feed charged and recovering as a product of the process a reduced pour point diesel oil fraction, a 350.degree. to 550.degree. F jet fuel fraction, and a 350.degree. F minus naphtha product fraction.
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Asinger, Paraffins Chemistry & Technology, Pergammon Press, N.Y. (1968) pp. 3, 123-125, 131, 132, 136, 138.
Milstein Donald
Stein Thomas R.
Davis C.
Farnsworth Carl D.
Huggett Charles A.
Mobil Oil Corporation
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