Method for inhibiting foulant formation in organic streams using erythorbic acid or oximes
AssigneeAshchem I.P., Inc.
InventorsKaj D. Rondum, Guy A. DeVicaris, Dwight E. Emerich
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Abstract
A method for inhibiting fouling in an organic process stream by adding certain oximes, hydrazine, erythorbic acid, carbohydrazide, or mixtures thereof. The antifoulant is added to the organic stream as an aqueous solution.
Claims12
A method for inhibiting fouling caused by reaction of organic compounds with at least one multiple bond therein, said organic compounds in contact with water, comprising adding to said water in contact with said organic compounds an effective amount of a compound selected from the group consisting of erythorbic acid;
- an oxime of the formula:
- ##STR2## in which R.sub.1 and R.sub.2 are the same or different and are selected from hydrogen, lower alkyl groups of 1-8 carbon atoms and aryl groups;
- and mixtures thereof;
- wherein said water and said organic compounds are adjusted to a pH of about 7 to about 9.
A method of inhibiting fouling of organic compounds with at least one multiple bond therein in a process stream containing water, said process stream adjusted to a pH of about 7 to about 9, comprising producing an anti-foulant from an oxime of the formula:
- ##STR3## in which R.sub.1 and R.sub.2 are the same or different and are selected from hydrogen, lower alkyl groups of 1-8 carbon atoms and aryl groups, by heating said oxime to at least about 85.degree. C. in the presence of water at a pH of about 7 to about 9 and contacting said process stream comprising both said organic compounds and said water with said anti-foulant.
Dependencies are inferred from the claim text.