Method for prevention of fouling in basic solution by...

Details Method for prevention of fouling in basic solution by... Method for prevention of fouling in basic solution by...

2006-01-17

2006-01-17

Griffin, Walter D. (Department: 1764)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With prevention or removal of deleterious carbon...

C208S04800Q, C208S047000

Reexamination Certificate

active

06986839

ABSTRACT:
A method for inhibiting and dissolving the deposits formed on caustic or alkaline scrubbers used in scrubbing acidic gases such as carbon dioxide, hydrogen sulfide, which are formed during the pyrolytic cracking of naphtha, ethane, and propane. The cracking operations produce certain oxygenated compounds such as vinyl acetate or acetaldehyde, which undergo polymerization under alkaline condition. The vinyl acetate on hydrolysis releases acetaldehyde under alkaline conditions. Amino acids such as 6 amino caproic acid and lactams such as epsilon caprolactam not only prevent but also dissolve the polymers formed by aldol condensation.

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PCT International Search Report for International Application No. PCT/IB03/01624 dated Aug. 27, 2003 (4p.).

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