How to remove the acid value in crude oil processing
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How to remove the acid value in crude oil processing
I don’t understand your question. What is your target product? If crude oil goes in and out as crude oil, only alkaline washing is possible, but it isn’t very effective. If you’re asking about the impact of acid value on crude oil processing, then the design of the top section of the distillation tower and the materials used in the equipment need to be taken into consideration. During the processing process, as the temperature rises, the acid value naturally disappears
The acidic substances in crude oil are mainly naphthenic acids, which are distilled out along with the distillate oils during the distillation process. The acid value of crude oil distillates reaches its maximum at around 400°C, after which it gradually decreases. Currently, efforts are being made to remove these acidic substances from crude oil before processing it
Acid removal from crude oil is difficult, but acids have a weakness: they can be broken down through thermal processing and catalysis; therefore, acid sulfur content can be reduced via hydrogenation, coking, and catalysis
The organic acids (naphthenic acids) in crude oil are primarily concentrated in the products; diesel is mainly removed through hydrogenation or alkaline treatment, lubricating oils are mainly removed via hydrogenation, and waxes can be removed either through hydrocracking or catalytic cracking.
Does \"gone\" refer to the decomposition of high-temperature naphthenic acid? So, are the residual acids in diesel and lubricating oil of that type, or are they other types of acids?