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US 9,840,673 B2Granted
Systems and methods for removing sulfur and halogens
AssigneeAquifer Maintenance & Performance Systems, Inc.
InventorJames Richard Murray
Life of this patent
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Abstract
Provided herein are systems and methods for removing halogens and sulfur from used oil. The used oil is heated and aerated, followed by rapid vaporization and cooling. The cooled oil is then subjected to an electrical field before being filtered.
Claims13
A method of treating oil to remove halogens and sulfur, comprising:
- (a) heating an oil to be treated;
- (b) aerating the heated oil to create an oil foam of substantially uniform air bubbles;
- (c) subjecting the oil foam to a vacuum to rapidly expand the oil foam and generate additional heat which vaporizes the oil foam, thereby reducing surface tension of the oil foam, removing volatile organic compounds from the oil foam, and condensing the oil;
- (d) contacting the condensed oil with a sintered metal to disrupt electromagnetic forces within the condensed oil, thereby allowing flocculation of halogens and sulfur contained in the condensed oil;
- (e) cooling the condensed oil to crystallize the halogens and sulfur;
- (f) subjecting the cooled oil to an electrical field resulting in polar instability within the cooled oil, thereby changing atomic structures of molecules in the cooled oil and crystallizing any uncrystalized halogens and sulfur;
- and
- (g) filtering the electrified oil to remove crystalized halogens and sulfur.
5 more elements
Dependencies are inferred from the claim text.