Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed
Patent
1987-12-18
1989-10-24
Sneed, H. M. S.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With preliminary treatment of feed
208 58, 208 60, 208 16, 208144, 585260, 585411, C10G 4550
Patent
active
048759929
ABSTRACT:
A process for the conversion of a feed rich in fused two-ring aromatic and fused two-ring hydroaromatic hydrocarbons, notably light cat cycle oil, furnance oils, coal liquids, tar sands liquids, shale oil liquids, and the like to high density jet fuels. Sulfur or nitrogen, or both are removed from said feed and a hydrodesulfurized/hydrodenitrogenated liquid product separated therefrom is hydrotreated in a second stage over a highly active fluorided Group VIII metal-on-alumina catalyst at conditions sufficient to selectively hydrogenate and saturate the fused two-ring aromatics and/or partially saturated fused two-ring hydroaromatics at high selectivity to naphthenes without any significant conversion thereof to lower molecular weight hydrocarbons. High density jet fuels having an API gravity ranging from about 25 to about 35, with a total aromatic content well below about 50 percent, preferably 5 percent to about 30 percent, are produced.
REFERENCES:
patent: 3594307 (1971-07-01), Kirk, Jr. et al.
patent: 3607729 (1971-09-01), Robinson et al.
patent: 4342641 (1982-08-01), Reif et al.
patent: 4427534 (1984-01-01), Brunn et al.
Exxon Research and Engineering Company
Myers Helane
Ott Roy J.
Sneed H. M. S.
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