Hydrocarbon distillate fuels containing novel additive

Details Hydrocarbon distillate fuels containing novel additive Hydrocarbon distillate fuels containing novel additive

1995-09-28

1997-06-10

Howard, Jacqueline V.

Chemistry of hydrocarbon compounds

Product blend, e.g., composition, etc., or blending process...

For fuel use only

585530, C10L 116

Patent

active

056377843

ABSTRACT:
A hydrocarbon oligomer and a process for its production is disclosed that is useful as a pour point depressant and as a combination pour point depressant and viscosity index improver for mineral oil or synthetic oil. The oligomer is also useful in modifying wax crystal formation at low temperature when added to distillate fuels. The oligomer is a near linear copolymer of a mixture of ethylene and C.sub.3 -C.sub.28 1-alkenes, or only 1-alkenes, wherein a large proportion of the pendant alkyl groups of the recurring 1-alkene monomer units contain between 14 and 22 carbon atoms. The oligomer is produced by polymerization of mixed 1-alkenes with reduced chromium oxide catalyst on silica support.

REFERENCES:
patent: 4827023 (1989-05-01), Hsu
patent: 4827064 (1989-05-01), Wu
patent: 5146021 (1992-09-01), Jackson et al.
patent: 5157177 (1992-10-01), Pelrine et al.
patent: 5243114 (1993-09-01), Johnson et al.
patent: 5264642 (1993-11-01), Wu

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