Foam control method

Details Foam control method Foam control method

1996-08-30

1998-05-12

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252358, 208 48AA, 208100, 208184, 203 20, 201 9, B01D 1904, C01G 4922

Patent

active

057500525

ABSTRACT:
Methods for controlling foam in hydrocarbon liquids within hydrocracking unit separator systems utilizing alkylphenolformaldehyde resin alkoxylates with a propylene oxide/ethylene oxide block copolymer having a molecular weight of from about 2000 to 6000 and having from about 20% to about 80% ethoxylation or an alkylarylsulfonic acid or alkylarylsulfonic acid amine salt to said hydrocarbon liquid.

REFERENCES:
patent: 3722184 (1973-03-01), McMinn
patent: 4711735 (1987-12-01), Gulley
patent: 4717495 (1988-01-01), Hercamp et al.
patent: 5008035 (1991-04-01), Broom
patent: 5169560 (1992-12-01), Hart
patent: 5256305 (1993-10-01), Hart
patent: 5296132 (1994-03-01), Hart
patent: 5389299 (1995-02-01), Hart
patent: 5472637 (1995-12-01), Hart

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