Stabilization of hydrocarbons by the addition of hydrazine
AssigneePhillips Petroleum Company
InventorsJoseph E. Bares, Byron G. Johnson, Frederick J. Cornforth
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Abstract
Hydrocarbon-containing fluid compositions are provided comprising at least one hydrocarbon fluid, at least one heteroaromatic, and at least one hydrazine additive. The resulting composition has reduced temporal formation of colored materials and/or gummy deposits. Additionally, antioxidant additives are combined with the above composition and provide a further reduction in the formation of colored materials and/or gummy deposits.
Claims8
A composition comprising at least one hydrocarbon fluid, at least one nitrogen containing heteroaromatic, at least one hydrazine additive selected from the group consisting of hydrazine and substituted hydrazines, and at least one antioxidant additive.
A composition comprising at least one hydrocarbon fluid, indole, from 300 ppm to 700 ppm hydrazine and from 0.5 ppm to 100 ppm of an antioxidant additive.
Dependencies are inferred from the claim text.