Use of alkanesulfonic acids as asphaltene-dispersing agents

Details Use of alkanesulfonic acids as asphaltene-dispersing agents Use of alkanesulfonic acids as asphaltene-dispersing agents

1997-10-14

1999-07-20

Griffin, Walter D.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With prevention or removal of deleterious carbon...

208265, 208282, 585 2, 44281, 44370, 508390, 508403, 508567, C07C 720

Patent

active

059252332

ABSTRACT:
The present invention relates to the use of secondary alkanesulphonic acids as asphaltene dispersing agent in crude oils and products derived therefrom, wherein a chain length of 8 to 22 C atoms is present. The secondary alkanesulfonic acids are employed in an amount of from 1 to 10,000 ppm by volume. The alkanesulfonic acid is preferably formulated as a solution or microemulsion, and can further contain optional alkyl-formaldehyde resin, oxyalkylated amines, or wax-dispersing agents. The alkanesulfonic acids provide reduced precipitate amounts, slow the rate of precipitate formation, form a more finely divided precipitate and reduce the tendency of the precipitate to be deposited on surfaces.

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J. Pet. Technol. 47 (1995) 782-787 Sep. 1995.
D.-L., Chang and H. S. Fogler (SPE paper No. 25185, 1993) Mar. 1993.
Derwent Patent Family Report (no month available).

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