Method for reducing acids in crude or refined hydrocarbons
AssigneeBaker Hughes Incorporated
InventorsKsenija Babic-Samardzija, Joseph L. Stark, Michael J. Zetlmeisl, Bradley G. Harrell, Lawrence N. Kremer
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Abstract
Total acid number and/or corrosiveness of a crude or refined hydrocarbon, where the total acid number and/or corrosiveness is due to the presence of acid compounds such as carboxylic acid (naphthenic acid), may be reduced by treating the hydrocarbon with a metallic overbase. The effect of this treatment may be substantially enhanced by the presence of a hydrogen transfer agent.
Claims30
A process for treating a hydrocarbon to reduce carboxylic acids concentration comprising admixing the hydrocarbon with an additive comprising a metallic overbase and a hydrogen transfer agent;
- wherein the temperature of the hydrocarbon ranges from about 100° F. (38° C.) to about 300° F. (149° C.).
A low acid hydrocarbon comprising a hydrocarbon, a metallic overbase and a hydrogen transfer agent, wherein compounds remaining in the low acid hydrocarbon are selected from the group consisting of the metallic overbase, the hydrogen transfer agent, and compounds resulting therefrom;
- wherein the temperature of the hydrocarbon ranges from about 100° F. (38° C.) to about 300° F. (149° C.).
An additive useful for treating a hydrocarbon to reduce the level of carboxylic acids therein, the additive comprising a metallic overbase and hydrogen transfer agent;
- wherein the metallic overbase comprises particles having no dimension greater than 1 micron.
Dependencies are inferred from the claim text.