METHOD FOR DETERMINING THE WATER-SOLUBLE ACIDITY OF HYDROCARBON MIXTURES
The analytical method using a pH-sensitive electrode and controlled pH adjustment effectively measures water-soluble acidity in hydrocarbon mixtures, addressing the limitations of existing methods by accurately determining the potential corrosiveness of acids extracted into water.
Patent Information
- Application Number
- BR102025004931
- Authority / Receiving Office
- BR · BR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-07-07
- Estimated Expiration
- 2045-03-14
AI Technical Summary
Existing methods for determining the total acidity of hydrocarbon mixtures, such as ASTM D664, are inadequate for measuring the acidity of components that can be extracted into an aqueous phase, as they are dominated by naphthenic acids that remain in the oil phase, failing to account for the potential corrosiveness of acids that migrate into water.
An analytical method involving a pH-sensitive electrode and controlled pH adjustment with a base solution to measure the water-soluble acidity by equimolar reaction, ensuring complete extraction of acids from the hydrocarbon mixture into the aqueous phase.
Enables accurate determination of water-soluble acidity, allowing for the prediction of corrosiveness and enabling protective measures for equipment and proper disposal of hydrocarbon-contaminated waters.
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