# US 10,767,135 B1 · Method of producing oils and fats and oil- and fat- producing apparatus

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- Number: US 10,767,135 B1
- Document ID: US10767135B1
- Status: Granted
- Kind: B1
- Application number: 16/589,763
- Filed: 2019-10-01
- Published: 2020-08-20
- Granted: 2020-09-08
- Earliest claimed: 2019-02-14
- Assignees: Joji Takase; Hiroyuki Sudo
- Applicants: Joji Takase; Hiroyuki Sudo
- Inventors: Joji Takase
- Web page: https://patentgrep.com/patent/US10767135B1

## CPC

- B01D 11/0203: {with a supercritical fluid}
- C11B 1/104: {using super critical gases or vapours}
- B01D 11/0207: {Control systems}
- B01D 11/0223: {Moving bed of solid material (see also B01D11/0261)}
- B01D 11/028: {Flow sheets}
- C11B 1/08: by hot pressing
- C11B 1/10: by extracting
- C11B 13/00: Recovery of fats, fatty oils or fatty acids from waste materials
- B01D 11/0257: {using mixing mechanisms, e.g. stirrers, jets (B01D11/0242 takes precedence)}
- Y02W 30/74: Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- C11B: PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES (drying-oils C09F)
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

An oil production apparatus includes a reaction vessel where raw material composed of an agricultural residue or a fishery residue is fed, a water vapor injecting unit for injecting saturated water vapor into the reaction vessel, a kneading unit for kneading a content in the reaction vessel, a temperature sensor disposed at a lower part of the reaction vessel, a pressure regulating unit regulating the pressure, a control unit for controlling driving of the water vapor injection unit, the kneading unit, the pressure regulating unit, a housing for making a working area for extraction of oil oxygen-free, a solid-liquid separation unit for separating solid from a product and water removal unit both disposed in the housing, and a nitrogen injection unit for injecting nitrogen into the housing. A method for obtaining the oil is also presented.

## Claims

### Claim 1

A method of producing oil comprising:
a step of feeding a raw material composed of an agricultural residue or a fishery residue into a reaction vessel;
a step of injecting saturated water vapor in the reaction vessel after the feeding of the raw material;
a step of starting kneading in the reaction vessel with keeping on injecting the water vapor;
a step of terminating the injection of the water vapor at a timing when pressure in the reaction vessel and temperature of a lower part of the reaction vessel respectively rise to a predetermined pressure and a predetermined temperature being set based on a type of the raw material;
a step of depressurizing the interior of the reaction vessel, and then taking a product out from the interior of the reaction vessel; and
a step of extracting oil from the product in an oxygen-free condition,
wherein the step of extracting oil from the product in the oxygen-free condition includes a step of solid-liquid separation where the solid is removed from the product, and a step of obtaining oil by removing water from the liquid obtained in the step of solid-liquid separation, and
the step of extracting oil from the product in an oxygen-free condition is performed in a housing in which nitrogen gas is introduced.

### Claim 2 (depends on 1)

The method of producing oil according to claim 1, further comprising
a step of continuing kneading for a predetermined time until the temperature of the lower part in the reaction vessel reaches a predetermined temperature after completion of the injection of water vapor,
wherein the pressure in the reaction vessel is then reduced.

### Claim 3 (depends on 1)

The method of producing oil according to claim 1,
wherein in the step of terminating the injection of the water vapor at a time when pressure in the reaction vessel and temperature of a lower part of the reaction vessel respectively rises to a predetermined pressure and a predetermined temperature being set based on a type of the raw material,
the predetermined pressure ranges from 1.1 MPa to 1.75 MPa, and
the predetermined temperature ranges from 110° C. to 181° C.

### Claim 4 (depends on 3)

The method of producing oil described in claim 3,
wherein the raw material is avocado, and in the step of terminating the injection of the water vapor at the time when the pressure in the reaction vessel and the temperature of the lower part of the reaction vessel rises to a predetermined pressure and a predetermined temperature being set based on a type of the raw material,
the predetermined pressure is at least 1.20 MPa, and
the predetermined temperature is at least 120.7° C.

### Claim 5

An oil production apparatus comprising:
a reaction vessel including an inlet port through which raw material composed of an agricultural residue or a fishery residue is fed and an outlet port through which a product is taken out;
a water vapor injecting unit for injecting saturated water vapor into the reaction vessel in which the raw material has been fed;
a kneading unit for kneading a content in the reaction vessel;
a temperature sensor disposed at a lower part of the reaction vessel;
a pressure regulating unit for regulating pressure in the reaction vessel;
a control unit for controlling driving of the water vapor injecting unit, the kneading unit, and the pressure regulating unit based on temperature measured by the temperature sensor or pressure regulated by the pressure regulating unit;
a housing for making a working area in an oxygen-free condition, the area in which a process from taking out of the product in the reaction vessel from the outlet port to extraction of the oil is performed;
a solid-liquid separating unit provided in the housing for separating solid from the product;
a water removing unit provided in the housing for removing water from a liquid after separating the solid by the solid-liquid separating unit; and
a nitrogen injecting device for injecting nitrogen into the housing.