Mineral oils: processes and products – Chemical conversion of hydrocarbons – Plural serial stages of chemical conversion
Patent
1986-05-28
1987-06-30
Metz, Andrew H.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Plural serial stages of chemical conversion
208 15, 585317, 585324, 585353, 585379, 585643, 585645, 585700, 585708, C10G 6902
Patent
active
046768858
ABSTRACT:
The invention disclosed herein comprises a process for the selective upgrading of combustion quality of a distillate transportation fuel by careful selective dehydrogenation, disproportionation and hydrogenation to convert cycloparaffinic materials contained in the distillate transportation fuel to acyclic paraffinic hydrocarbons, wherein said conversion is undertaken by first forming cyclomonoolefinic hydrocarbons from cycloparaffinic hydrocarbons via dehydrogenation, disproportionating the cyclomonoolefinic hydrocarbons to acyclic di-.alpha.-olefin hydrocarbons and then selectively hydrogenating said di-.alpha.-olefin hydrocarbons in the presence of hydrogen to saturate the double bonds of the di-.alpha.-olefin to form acyclic paraffinic hydrocarbons. The selective disproportionation reaction includes the addition of ethylene or an ethylene acting material to ring open the cyclomonoolefinic material. The reaction may be undertaken in either a single stage vessel, or in a three stage vessel having three unitary reaction areas comprising first, a dehydrogenation zone, second, a disproportionation zone and third, a hydrogenation zone.
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McFarlane Anthony
Metz Andrew H.
Muller Kimbley L.
Shell Oil Company
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