| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 554176000 | Metal containing contaminant removal (e.g., of colloidal elemental metal catalyst, of metal ions, etc.) | 8 |
| 20130158278 | METHODS FOR REMOVING CONTAMINANTS FROM ALGAL OIL - Methods for removing contaminants from algal oil are provided. In an embodiment, a method comprises the steps of combining a sulfuric acid-aqueous solution that has a pH of about 1 or less with a contaminant-containing algal oil at treatment conditions effective to form an effluent. The effluent comprises a treated algal oil phase and contaminants in an acidic aqueous phase. The contaminants comprise metals, phosphorus, or combinations thereof The acidic aqueous phase is removed from the effluent to form a contaminant-depleted algal oil. | 06-20-2013 |
| 20130158279 | PROCESS FOR REMOVING METALS FROM TALLOW OIL - A process for removing a metal from a tallow feed includes contacting the tallow feed comprising the metal with a tallow oil-immiscible ionic liquid to produce a tallow oil and TALLOW-immiscible ionic liquid mixture, and separating the mixture to produce a tallow oil effluent having a reduced metal content relative to the tallow feed. The metals removed include iron, aluminum, calcium, magnesium, sodium, zinc, and potassium. | 06-20-2013 |
| 20130197251 | PROCESS FOR REMOVAL OF METALS FROM OILS/FATS - The invention describes process for demetallation of vegetable oils and animal fats to reduce metal content below 1 ppm to make them suitable for hydroprocessing feedstocks. The process comprises acid treatment with very low concentration of acids, utilizing synergistic effect of phosphoric acid and citric acid, followed by counter-current treatment with clay without intermediate step of water washing and treatment with ion exchange resin. | 08-01-2013 |
| 20140148609 | THERMAL TREATMENT OF CRUDE ALGAE OIL - Crude algae oils are thermally-treated at temperature(s) in the range of 300-600° C., without catalyst and/or the addition of hydrogen, to produce a higher grade, cleaner algae oil with, for example, reduced oxygen, boiling range, viscosity and/or density, and acid number, in addition, because the thermal treatment reduces metals in the oil and produces carbonaceous solids, it is expected that catalyst deactivation by algae oil feedstocks will be greatly reduced if the crude algae oil or fractions thereof are thermally-treated prior to catalytic upgrading. Oxygen, fatty acids, metals, and metalloids are reduced/removed by the thermal treatment, so that RBI) processing of the crude bio-oil may be reduced or eliminated, and requirements for further deoxygenation and hydrotreating of the thermal products are reduced or eliminated. | 05-29-2014 |
| 20150057460 | METHOD FOR CAVITATION-ASSISTED REFINING, DEGUMMING AND DEWAXING OF OIL AND FAT - A method for degumming and/or refining crude oil containing impurities involving mixing the crude oil with degumming agents, i.e., water or acid, and subjecting the mixture to flow-through, hydrodynamic cavitation processing. The cavitational processing transfers impurities in the crude oil to a water phase for easier separation. The water phase may be separated from the oil phase by commonly available separation methods. | 02-26-2015 |
| 20150094482 | METHODS FOR REMOVING CONTAMINANTS FROM ALGAL OIL - Methods for removing contaminants from algal oil are provided. In an embodiment, a method comprises the steps of combining a sulfuric acid-aqueous solution that has a pH of about 1 or less with a contaminant-containing algal oil at treatment conditions effective to form an effluent. The effluent comprises a treated algal oil phase and contaminants in an acidic aqueous phase. The contaminants comprise metals, phosphorus, or combinations thereof. The acidic aqueous phase is removed from the effluent to form a contaminant-depleted algal oil. | 04-02-2015 |
| 20160017256 | METHOD OF REMOVING A CONTAMINANT FROM A CONTAMINANT-CONTAINING BIOLOGICAL COMPOSITION USEFUL AS A BIOFUEL FEEDSTOCK - Biological compositions containing animal fats and plant oils desirably are free of contaminants prior to processing into a biofuel. Disclosed herein is a method of removing such contaminants from these compositions to make that processing more efficient. The method employs a unique arrangement of mixers and centrifuges along with acidic solutions and recycle streams to re move these contaminants from the compositions. | 01-21-2016 |
| 20190144780 | METHOD FOR PRODUCING POLYUNSATURATED FATTY ACID-CONTAINING COMPOSITION | 05-16-2019 |
