Chemistry of hydrocarbon compounds – Production of hydrocarbon mixture from refuse or vegetation – From synthetic resin or rubber
Patent
1989-06-19
1990-10-30
Davis, Curtis R.
Chemistry of hydrocarbon compounds
Production of hydrocarbon mixture from refuse or vegetation
From synthetic resin or rubber
585329, 585648, C07C 100, C07C 402
Patent
active
049670301
ABSTRACT:
It has been discovered that low viscosity lubricant can be prepared in high yield by catalytically cracking higher molecular weight oligomers of C.sub.6 -C.sub.20 alpha-olefins prepared by oligomerization in contact with reduced chromium oxide catalyst on solid support. Further, it has been discovered that the reduced viscosity oligomers produced by cracking of high vicosity lubricant retains the superior characteristics of higher viscosity index and low pour point of the liquid lubricant starting material. The lubricants are cracked in contact with hydrogen and hydrocracking catalyst such as platinum or palladium on mildly acidic support. The support can be Al.sub.2 O.sub.3, acidified Al.sub.2 O.sub.3, SiO.sub.2, SiO.sub.2 /Al.sub.2 O.sub.3, zeolites comprising high silica ZSM-5, Beta, HY, USY, and clay. The reduced viscosity material is hydrotreated during cracking.
REFERENCES:
patent: 4906799 (1990-03-01), Forbus et al.
Landis Michael E.
Pelrine Bruce P.
Yan Tsoung Y.
Davis Curtis R.
Keen Malcolm D.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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