Process for crude oil purification
Abstract
Abstract A PROCESS FOR REMOVING METAL-CONTAINING COMPOUNDS FROM CRUDE OIL WHICH COMPOUNDS ADVERSELY AFFECT SUBSEQUENT PROCESSES IN A REFINERY. WATER IS DISPERSED INTO THE CRUDE OIL IN THE PRESENCE OF AN OXYALKYLEATED AMINE-DERIVED SURFACTANT. THE RESULTANT MIXTURE IS RESOLVED ELECTRICALLY INT A PURIFIED CRUDE OIL PHASE AND AWATER PHASE CONTAINING THE REMOVED METAL-CONTAINING COMPOUNDS. WATER, IN AMOUNTS UP TO ABOUT 10 VOLUME PERCENT, IS PREFERABLY ADMIXED WITH THE CRUDE OIL AFTER THE ADDITION OF THE SURFACTANT. THE SURFACTANT HAS HYDROPHILIC-HYDROPHOBIC PROPERTIES FOR REMOVING METAL-CONTAINING COMPOUNDS FROM THE CRUDE OIL DURING ELECTRICAL RESOLUTION OF DISPERSED WATER. PREFERABLY, THE SURFACTANT IS AN OXYALKYLATED POLYALKYLENE POLYAMINE, AND IN PARTICULAR, THE BASE-CATALYZED, REACTION PRODUCT OF TETRAETHYLENE PENTAMINE WHICH HAS BEEN OXYALKYLATED WITH PROPYLENE OXIDE AND ETHYLENE OXIDE. THE PRESENT PROCESS IS PARTICULARLY EFFECTIVE IN REMOVING IRON COMPOUNDS FROM CRUDE OIL.
Inventors
- 👤 James H Meadow
- 👤 Roy W Greenlee
Bibliographic Details
Claims Analysis
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| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
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