OIL DEGUMMING SYSTEMS

• US 20180340132A1
• Filed: 03/06/2018
• Published: 11/29/2018
• Est. Priority Date: 05/24/2017
• Status: Active Grant

• Current Assignee: Arisdyne Systems Incorporated
• Original Assignee: Arisdyne Systems Incorporated
• Inventors: Kozyuk, Oleg, Reimers, Peter
• Granted Patent: US 10,344,246 B2
• Time in Patent Office: Days
• CPC Class Codes: B01F 2025/919 characterised by the disposition of the feed and discharge openings
• CPC Class Codes: B01F 25/42 in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
• CPC Class Codes: B01F 25/45 Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads B01F25/44 takes precedence
• CPC Class Codes: B01F 25/4521 the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube
• CPC Class Codes: B01F 35/7176 using pumps
• CPC Class Codes: B01J 19/0066 Stirrers mixing per se B01F
• CPC Class Codes: B01J 19/008 Processes for carrying out reactions under cavitation conditions
• CPC Class Codes: B01J 19/1806 resulting in a turbulent flow of the reactants, such as in centrifugal-type reactors, or having a high Reynolds-number
• CPC Class Codes: C11B 3/003 by enzymes or microorganisms, living or dead
• CPC Class Codes: C11B 3/04 with acids
• CPC Class Codes: C11B 3/06 with bases
• CPC Class Codes: C11B 3/16 by mechanical means

Abstract

A system and method for degumming oil is used to increase oil yield and reduce impurities such as phosphorus. An oil feedstock, water and enzyme mixture is passed through a high shear mixing device prior to being fed to an agitated reactor equipped with a recirculation system. The recirculation system includes a second high shear mixing device that further mixes the oil mixture in the reactor during processing. The reacted mixture is discharged from the reactor to a downstream post-reaction system for separating the degummed oil from the reacted mixture. The separation step can be used to remove the phosphatides and other impurities from the reacted oil to form a purified oil product.

Claims

1. An enzymatic degumming system comprising:

a first high shear mixing device comprising an inlet and an outlet, the first high shear mixing device connected to a feed supply comprising an oil comprising non-hydrated phospholipids, water and enzyme, the first high shear mixing device capable of mixing the feed supply to produce pre-mixed feed stock;

a reactor comprising a reactor inlet, a reactor outlet, a mixing chamber and an agitator arranged in the mixing chamber, the reactor outlet connected to a recirculation system positioned outside the reactor;

the recirculation system comprising a pump comprising a pump inlet and a pump outlet, the pump inlet in fluid communication with the outlet of the reactor and the outlet of the first high shear mixing device;

a second high shear mixing device comprising an inlet and an outlet, the inlet of the second high shear mixing device in fluid communication with the pump outlet and the outlet of the second high shear mixing device in fluid communication with the reactor inlet.

2. The enzymatic degumming system of claim 1, wherein the first high shear mixing device is selected from a group consisting of a high-speed pump, colloid mill, high-pressure jet nozzle, static mixer, high-pressure valve type homogenizer, turbine type rotor-rotor homogenizer, turbine type rotor-stator homogenizer, dynamic hydrodynamic cavitation device, static hydrodynamic cavitation device and ultrasonic cavitation device.

3. The enzymatic degumming system of claim 1, wherein the second high shear mixing device is selected from a group consisting of a high-speed pump, colloid mill, high-pressure jet nozzle, static mixer, high-pressure valve type homogenizer, turbine type rotor-rotor homogenizer, turbine type rotor-stator homogenizer, dynamic hydrodynamic cavitation device, static hydrodynamic cavitation device and ultrasonic cavitation device.

4. The enzymatic degumming system of claim 1, wherein at least one of the first high shear mixing device and the second high shear mixing device comprises an inline device.

5. The enzymatic degumming system of claim 1, wherein the oil is selected from the group consisting of vegetable oil, acai oil, almond oil, babassu oil, blackcurrent seed oil, borage seed oil, canola oil, cashew oil, castor oil, coconut oil, coriander oil, corn oil, cottonseed oil, crambe oil, flax seed oil, grape seed oil, hazelnut oil, hempseed oil, jatropha oil, jojoba oil, linseed oil, macadamia nut oil, mango kernel oil, meadowfoam oil, mustard oil, neat'"'"'s foot oil, olive oil, palm oil, palm kernel oil, palm olein, peanut oil, pecan oil, pine nut oil, pistachio oil, poppy seed oil, rapeseed oil, rice bran oil, safflower oil, sasanqua oil, sesame oil, shea butter, soybean oil, sunflower seed oil, tall oil, tsubaki oil, walnut oil and a combination thereof.

6. The enzymatic degumming system of claim 1, wherein the feed supply further comprises a pH adjuster reagent.

7. The enzymatic degumming system of claim 1, wherein the feed supply further comprises a base selected from the group consisting of sodium hydroxide, potassium hydroxide, sodium silicate, sodium carbonate, calcium carbonate, and a combination thereof.

8. The enzymatic degumming system of claim 1, wherein the reactor is in fluid communication with a downstream post-reaction network comprising a heat exchanger and a separator.

9. The enzymatic degumming system of claim 1, wherein the flow capacity of the first high shear mixing device is greater than the second high shear mixing device.

10. The enzymatic degumming system of claim 1, wherein a second reactor is in fluid communication with and downstream of the reactor.

11. The enzymatic degumming system of claim 1, wherein the first high shear mixing device is a static hydrodynamic cavitation device.

12. The enzymatic degumming system of claim 1, wherein the second high shear mixing device is a static hydrodynamic cavitation device.

13. A method of degumming oil, the method comprising:

passing a feed supply through a first high shear mixing device to form a pre-mixed feedstock, the feed supply comprising an oil comprising non-hydrated phospholipids, water, a pH adjuster reagent, a base and enzyme;

charging the pre-mixed feedstock to a mixing chamber of a reactor to form a reaction mixture;

mixing the reaction mixture in the mixing chamber of the reactor with an agitator;

recirculating the reaction mixture in the mixing chamber repeatedly through a recirculation system positioned outside of the reactor, the recirculation system comprising a second high shear mixing device, wherein the recirculation system reintroduces the reaction mixture to the reactor to form a reacted mixture;

discharging the reacted mixture from the reactor to a downstream post-reaction network comprising a heat exchanger and a separator;

passing the reacted mixture through the heat exchanger and separator, wherein the separator generates a degummed oil product.

14. The method of claim 13, wherein the oil comprises a crude vegetable oil or a water-degummed vegetable oil and the pH adjuster reagent comprises an aqueous acid solution.

15. The method of claim 13, wherein the pre-mixed feedstock is passed through the recirculation system before being introduced into the mixing chamber of the reactor.

16. The method of claim 13, wherein the recirculating system further comprises a pump, the pump comprising a pump inlet and a pump outlet.

17. The method of claim 13, wherein the pre-mixed feedstock and the reaction mixture are combined together in the second high shear mixing device.

18. The method of claim 13, wherein the first high shear mixing device is selected from a group consisting of a high-speed pump, colloid mill, high-pressure jet nozzle, static mixer, high-pressure valve type homogenizer, turbine type rotor-rotor homogenizer, turbine type rotor-stator homogenizer, dynamic hydrodynamic cavitation device, static hydrodynamic cavitation device and ultrasonic cavitation device.

19. The method of claim 13, wherein the second high shear mixing device is selected from a group consisting of a high-speed pump, colloid mill, high-pressure jet nozzle, static mixer, high-pressure valve type homogenizer, turbine type rotor-rotor homogenizer, turbine type rotor-stator homogenizer, dynamic hydrodynamic cavitation device, static hydrodynamic cavitation device and ultrasonic cavitation device.

20. The method of claim 13, wherein the first high shear mixing device and the second high shear mixing device are both hydrodynamic static cavitation devices, the hydrodynamic cavitation devices each comprising a local constriction.