FIELD: oil and gas industry.
SUBSTANCE: invention is referred to calcium removal from crude oil or mixture of crude oil. Invention is referred method for calcium removal from crude oil or mixture of crude oil containing calcium naphthenate that includes contact of crude oil or mixture of crude oil with flushing water used in crude oil refining systems and additive, wherein flushing water has value of pH from 3 up to 11 and additive consists of glyoxal. Invention is also referred to glyoxal usage for calcium removal from crude oil or its mixtures.
EFFECT: effective calcium removal from crude oil or its mixtures at low and high pH values.
17 cl, 17 tbl, 66 ex
| Title | Year | Author | Number |
|---|---|---|---|
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| METHOD OF MANUFACTURING CRUDE TALL OIL BY SOAP WASHING WITH SEPARATION OF CALCIUM CARBONATE | 2011 |
|
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| CALCIUM NITRATE | 2009 |
|
RU2414426C2 |
