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公开(公告)号：US3799857A
公开(公告)日：1974-03-26
申请号：US26304472
申请日：1972-06-15
Applicant: PETROLITE CORP
Inventor： FRANSE A
CPC classification number: B01D35/06 , B01D21/0009 , B03C5/024
Abstract: AN ELECTROFILTER SYSTEM FOR REMOVING SOLIDS FROM AN ORGANIC LIQUID. THE SYSTEM COMPRISES A VESSEL WITH AN UPRIGHT FLOW AXIS, INLET AND OUTLET MEANS FOR PASSING THE ORGANIC LIQUID THROUGH A PARTICULATE BED RESIDING IN THE VESSEL. THE BED IS FORMED OF HARD-GRANULAR, SPHEROIDAL PARTICLES OF SUBSTANTIAL UNIFORMITY IN SIZE AND OF A RIGID AND SUBSTANTIALLY INCOMPRESSIBLE DIELECTRIC MATERIAL. THE VESSEL HAS A VOID REGION ABOVE THE BED TO PERMIT A SUBSTANTIAL VERTICAL EXPANSION OF THE PARTICELS. AN ELECTRIC FIELD WITHIN THE BED HAS AN INTENSITY SUFFICIENT FOR REMOVING SOLIDS FROM THE ORGANIC LIQUID BY THEIR ADHESION TO THE PARTICLES. THE PARTICLES ARE PERIODICALLY CLEANED OF ADHERING SOLIDS BY MEANS PROVIDING FOR (1) INTERRUPTION OF THE ELECTRIC FIELDS, (2) EXPANSION OF THE PARTICLES INTO THE VOID REGION, AND (3) INDUCTION OF PARTICLES INTO A CIRCULAR MOVEMENT RELATIVE TO ONE ANOTHER, AND THEN (4) REMOVAL OF THE RELEASED SOLIDS FROM THE VESSEL.
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公开(公告)号：US3799856A
公开(公告)日：1974-03-26
申请号：US26301972
申请日：1972-06-15
Applicant: PETROLITE CORP
Inventor： FRANSE A
CPC classification number: B03C5/024 , B01D21/0009
Abstract: A PROCESS FOR THE WATERLESS DESALTING OF A STREAM OF SALT-CONTAMINATED HYDROCARBON SUCH AS CRUDE OIL AND ITS PORDUCTS. THE SALT-CARRYING STREAM IS PROVIDED (E.G., ELECTRIC DEHYDRATION) WITH A DISPERSED WATER CONTENT OF LESS THAN 1% BY VOLUME. THE TEMPERATURE OF THE STREAM IS ADJUSTED UNTIL ALL OF THE WATER IS IN SOLUTION WITHIN THE HYDROCARBON PHASE AND ONLY SALT SOLIDS ARE DISPERSED WITHIN THE STREAM. THE STREAM IS PASSED, WITH ALL OF THE WATER BEING HELD IN SOLUTION, THROUGH A POROUS BED FORMED OF HARD GRANULAR SPHEROIDAL PARTICLES. THE PARTICLES ARE SUBSTANTIALLY UNIFORM IN SIZE AND OF A RIGID AND SUBSTANTIALLY INCOMPRESSIBLE DIELECTRIC MATERIAL. AN ELECTRIC FIELD IS ESTABLISHED WITHIN THE BED HAVING AN INTENSITY OF AT LEAST 5 KILOVOLTS PER INCH OF DC POTENTIAL. THE SALT SOLIDS ARE REMOVED FROM THE STREAM BY THEIR TENACIOUS ADHESION TO THE SPHEROIDAL PARTICLES. THE STREAM WITH REDUCED SALT SOLIDS IS REMOVED TO A SUBSEQUENT UTILIZATION. THE SPHEEROIDAL PARTICLES ARE PERIODICALLY CLEANED IN THE ABSENCE OF THE ELECTRIC FIELD OF THE ACCUMULATED SALT SOLIDS WITH A NON-AQUEOUS WASH LIQUID FOR RESTORING THE EFFICIENCY OF THE BED TO REMOVE FURTHER QUANTITIES OF SALT SOLIDS FROM THE STREAM UNDER THE INFLUENCE OF THE ELECTRIC FIELD. IN ANOTHER ASPECT OF THE PRESENT PROCESS, SALT SOLIDS ARE OBTAINED FROM THE PARTICLE CLEANING IN A SUBSTANTIAL ANHYDROUS FORM FOR READY DISPOSAL.
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公开(公告)号：US3806437A
公开(公告)日：1974-04-23
申请号：US34377673
申请日：1973-03-22
Applicant: PETROLITE CORP
CPC classification number: C10G33/02 , B01D17/045 , B01D17/06 , B03C5/00 , B03C5/02 , B03C11/00 , B03C2201/02
Abstract: A PROCESS FOR TREATING A HEAVY PETROLEUM DISTILLATE CONTAINING NAPHTHENIC ACIDS BY THE ADDITION OF AN AQUEOUS METAL HYDROXIDE. THE RESULTANT MIXTURE, AFTER INTIMATE CONTACT, FORMS A DIRECT EMULSION AND CONCOMITANTLY A SMALL PORTION OF AN INVERSE, MAYONNAISE-LIKE WATER CONTINUOUS EMULSION THE EMULSIONS ARE SUBJECTED TO AN ELECTRICAL FIELD WHICH SEPARATES A RELATIVELY PURE HEACY PETROLEUM DISTILLATE PHASE FROM A AQUEOUS MIXTURE OF THE METAL HYDROXIDE SALTS OF THE NAPHTHENIC ACIDS AND THE INVERSE, MAYONNAISE-LIKE EMULSION. THE AQUEOUS MIXTURE IS REMOVED PROMPTLY FROM THE ELECTRIC FIELD AND THEN PASSED DOWNWARDLY THROUGH A BED OF POROUS MATERIAL, WHICH MATERIAL IS PREFERENTIALLY WATER WETTED WHEREBY THE AQUEOUS MIXTURE IS SUBSTANTIALLY AND COMPLETELY SEPARATED INTO A HEAVY PETROLEUM DISTILLATE PHASE AND AN AQUEOUS PHASE CONTAINING THE METAL HYDROXUDE SALTS OF NAPHTHENIC ACIDS.
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公开(公告)号：US3799855A
公开(公告)日：1974-03-26
申请号：US26307272
申请日：1972-06-15
Applicant: PETROLITE CORP
Inventor： FRANSE A
CPC classification number: B01D21/0009 , B03C5/024
Abstract: A PROCESS FOR THE REMOVAL OF SOLIDS FROM A VISCOUS HEAVY HYDROCARBON STREAM SUCH AS PETROLEUM RESIDUUM. THE PROCESS INCLUDES THE STEP OF ADJUSTING THE TEMPERATURE OF A POROUS BED UNTIL THE STREAM CAN FLOW THERETHROUGH WITHOUT ANY SIGNIFICANT CONDENSATION OF DISSOLVED OR ENTRAINED WATER. THE SOLIDS CONTAINING STREAM IS PASSED THROUGH THE POROUS BED WHICH BED IS FORMED OF HARD GRANULAR SPHEROIDAL PARTICLES. THESE PARTICLES ARE SUBSTANTIALLY UNIFORM IN SIZE AND OF A RIGID AND SUBSTANTIALLY INCOMPRESSIBLE DIELECTRIC MATERIAL. AN ELECTRIC FILED IS ESTABLISHED WITHIN THE POROUS BED HAVING AN INTENSITY OF AT LEAST 5 KILOVOLTS PER INCH OF DC POTENTIAL. THE ELECTRIC FIELD CAUSES THE REMOVAL OF SOLIDS FROM THE STREAM AND THEIR TENACIOUS ADHESION TO THE PARTICLES. THE STREAM WITH REDUCED SOLIDS CONTENT IS ,: REMOVED FROM THE POROUS BED TO A SUBSEQUENT UTILIZATION. THE PARTICLES ARE PERIODICALLY CLEANED OF THE ACCUMULATED SOLIDS TO RESTORE THE SOLIDS-REMOVAL EFFICIENCY OF THE POROUS BED.
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