FIELD: oil and gas industry.
SUBSTANCE: invention relates to the method of metals and amines removal from crude oil including: addition to the specified crude oil of the water solution effective for metal removal, solution contains from 40 to 70 wt % of apple acid and/or its salts; separate addition of the flushing water to the specified crude oil and mixing of the specified crude oil, acid and flushing water with creation of the emulsion; and separation of the specified emulsion to water phase and crude oil with reduced content of metals and/or amines, at that the apple acid and/or its salt is added to the crude oil upstream to the flushing water. Besides, the invention relates to the improved method of desalination during oil refining.
EFFECT: suggested methods ensure improved metals and amines removal from the crude oil.
11 cl, 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF TRANSFERRING METALS FROM HYDROCARBON PHASE INTO AQUEOUS PHASE, COMPOSITION FOR IMPLEMENTING THIS METHOD, PROCESSED HYDROCARBON EMULSION | 2003 |
|
RU2346024C2 |
| CALCIUM REMOVAL OPTIMIZATION | 2018 |
|
RU2776251C2 |
| ADDITIVE FOR EXTRACTION PROCESS EXERCISING SYNERGETIC EFFECT AND CONSISTING OF MIX OF ACIDS, AND METHOD OF ITS APPLICATION | 2009 |
|
RU2495090C2 |
| ADDITIVE AND METHOD FOR CALCIUM REMOVAL FROM CRUDE OIL CONTAINING CALCIUM NAPHTHENATE | 2012 |
|
RU2561273C1 |
| REMOVAL OF CONTAMINANTS FROM CRUDE OIL | 2017 |
|
RU2761458C2 |
| REMOVAL OF NAPHTHENIC ACIDS FROM OIL FEEDSTOCK AND DISTILLATES | 1999 |
|
RU2208622C2 |
| CALCIUM REMOVAL FROM CRUDE OIL METHOD | 2006 |
|
RU2379330C1 |
| 0 |
|
SU69179A1 | |
| REMOVAL OF NAPHTHENIC ACIDS FROM OIL FEEDSTOCK | 1999 |
|
RU2205857C2 |
| METHOD OF DESALTING AND DEHYDRATING HEAVY VISCOUS CRUDE OIL AND TRAPPED PETROLEUM PRODUCT | 2002 |
|
RU2230771C2 |
