CN116286176A - Method for refining liquid grease at low temperature - Google Patents

Method for refining liquid grease at low temperature Download PDF

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Publication number
CN116286176A
CN116286176A CN202310137953.1A CN202310137953A CN116286176A CN 116286176 A CN116286176 A CN 116286176A CN 202310137953 A CN202310137953 A CN 202310137953A CN 116286176 A CN116286176 A CN 116286176A
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CN
China
Prior art keywords
tank
refining
grease
oil
propane
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Pending
Application number
CN202310137953.1A
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Chinese (zh)
Inventor
邓冰言
蔡庆瑞
方奕闵
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Jiuran Biotechnology Hunan Co ltd
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Jiuran Biotechnology Hunan Co ltd
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Priority to CN202310137953.1A priority Critical patent/CN116286176A/en
Publication of CN116286176A publication Critical patent/CN116286176A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • 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
    • C11B3/00—Refining fats or fatty oils
    • C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • 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
    • C11B3/00—Refining fats or fatty oils
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • 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
    • C11B3/00—Refining fats or fatty oils
    • C11B3/02—Refining fats or fatty oils by chemical reaction
    • C11B3/06—Refining fats or fatty oils by chemical reaction with bases
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • 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
    • C11B3/00—Refining fats or fatty oils
    • C11B3/10—Refining fats or fatty oils by adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2256/00—Main component in the product gas stream after treatment
    • B01D2256/24—Hydrocarbons
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Microbiology (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fats And Perfumes (AREA)

Abstract

The invention discloses a refining method of liquid grease, which has the advantages of simple process, short period, low production cost and no organic solvent residue. The invention adopts subcritical propane refining technology to treat liquid grease. Liquid grease is placed into an oil storage tank, the liquid grease is controlled to enter a refining system through a grease pump, and the refining reference temperature in the tank body is 25-90 DEG C o And C, continuous refining, wherein the propane flow is 5-30L/h, the extraction pressure is 15-45 bar, and the refined liquid grease can be obtained through the oil removal tank, the degumming tank, the deacidification tank, the decoloring tank and the collecting tank. The method can continuously feed materials and continuously treat refined grease, and can refine various animal liquid grease, plant liquid grease and recycle greaseThe waste grease is eaten, the quality of the manufactured oil is easy to preserve, the quality of the oil is improved, and the refining operation mode is simple.

Description

Method for refining liquid grease at low temperature
Technical Field
The invention belongs to the technical field of subcritical fluid extraction, and particularly relates to a method for refining liquid grease at low temperature.
Background
In recent years, the requirements of people on edible oil are higher and higher, and the edible oil is not pressed to meet the common quality, but refined edible oil with healthier taste is needed. The refined edible oil is clear and has no impurities, and has attractive visual effect and higher economic value. Refining edible oil refers to the process of removing impurities in crude oil, extracting essence and purifying by using oil refining equipment. Impurities in unrefined edible oil mainly include cake scraps, colloid impurities, free fatty acids, pigments and odor substances.
The refining aims to effectively filter and precipitate cake scraps, peptized impurities, free fatty acids, pigments and odor substances contained in the squeezed or leached crude oil, so that the edible oil is more suitable for eating and storing, and the practical value and the market value of the edible oil are improved.
The subcritical propane refining requirement is relatively higher than that of supercritical carbon dioxide, the extraction pressure is low, the equipment requirement is low, the refining temperature is low, and the bioactivity in the grease can be maintained; the oil and fat has higher solubility in propane, and the extraction (refining) of the oil and fat takes a short time. In view of the above, the subcritical propane refining technology is applicable to liquid oils and fats of animal or vegetable nature.
Disclosure of Invention
The invention aims to provide a method for refining liquid grease at low temperature, which aims to solve the problems in the background technology. In order to achieve the purpose, the invention adopts the following technical scheme:
a method for refining liquid grease at low temperature, comprising the steps of:
s1, placing liquid grease into an oil storage tank, pumping the liquid grease into a degumming tank by a grease pump, and pumping gaseous propane into the degumming tank at the same time, so that the liquid grease and the gaseous propane are mixed and degummed in the degumming tank;
s2, refining the mixture of the S1 according to a tank body device which sequentially passes through a degumming tank, a deacidification tank, a decoloring tank, a collecting tank and a deodorizing tank; wherein:
1) Degumming: the separator is arranged in the degumming tank, so that impurities or oil with larger molecules can be left in the degumming tank by utilizing the low-temperature condensation effect;
2) Deacidifying: food-grade sodium hydroxide is placed in the deacidification tank body, and deacidification is carried out on the oil by utilizing the acid-base neutralization principle;
3) Decoloring: the bleaching tank is internally provided with silica clay for adsorbing natural pigment, so that the problem of subsequent oxidation of oil quality is reduced;
4) And (3) collecting: separating oil quality from propane by heating treatment;
5) Deodorizing: the gasified propane enters a deodorizing tank, the deodorizing effect is achieved by using active carbon, and the propane gas flows back to a storage tank to achieve the recycling effect; and setting the extraction time to be 30-240 minutes for treatment, and collecting the liquid oil refined extract.
Further, the fluid is propane, and the flow rate of the propane is set to be 5-30L/h.
Further, the degumming tank: temperature 10 o C~60 o C. The pressure is 15-45 bar.
Further, the deacidification groove: temperature 25 o C~90 o C. The pressure is 15-45 bar.
Further, the decoloring tank: temperature 25 o C~90 o C. The pressure is 15-45 bar.
Further, the deodorization tank: temperature 25 o C~90 o C. The pressure is 15-45 bar.
The invention has the beneficial effects that: the method can continuously feed materials and continuously treat refined grease, can refine various animal liquid grease, plant liquid grease and recoverable edible waste grease, and has the advantages of easy preservation, improved oil quality and simple refining operation mode. Propane is an organic compound, is slightly soluble in water, ethanol and diethyl ether, has stable chemical properties, is not easy to react, and can cause the size of fluid density through the change of temperature and pressure so as to influence the extraction rate. So that the effective components of the sample are enriched by the steps of adjusting temperature, pressure, degumming, deacidification, decoloration, deodorization and the like so as to control the quality of the product. The refining equipment is provided with a system for recycling propane to the storage tank, so that the propane is safer to use and has no waste, and the benefit of the propane in refining and no environmental pollution are increased. The detection of GC, HPLC, MC and the like can directly reflect the effective components in the liquid grease, and further confirm the integration of refining and mass analysis.
Drawings
Fig. 1 is a schematic process flow diagram provided in an embodiment of the present invention.
Description of the embodiments
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiments, and the terms "upper," "lower," "left," "right," "front," "back," and the like are used herein with reference to the positional relationship of the drawings.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The technical scheme of the patent is further described in detail below with reference to the specific embodiments.
Referring to fig. 1, a flow chart of the method for extracting and refining giant salamander solid grease at low temperature is shown, and the following specific examples are provided for illustration:
examples
Putting 1000 g of giant salamander fatty oil into an oil storage tank, refining by using different separating devices, wherein the degumming tank is not set at a temperature of 25bar, and the temperatures of a deacidification tank and a decoloration tank are set at 50 o C. The pressure was 35bar and the collecting tank temperature was 45 o C. The pressure is 35bar, and the temperature of the deodorization tank is set to 55 o C. The giant salamander oil product after refining can be collected by treatment (continuous treatment can also be carried out) under the conditions of 35bar pressure and 20L/h propane flow rate.
Examples
1000 g of giant salamander liver oil is taken and put into an oil storage tank, refining steps are carried out through different separating devices, and the degumming tank is set at 30 o C, the pressure is 40bar, the temperature of the deacidification tank and the decolorizing tank is 50 o C. The pressure was 40bar and the collecting tank temperature was 45 o C. The pressure is 40bar, and the temperature of the deodorization tank is set to be 50 o C. The oil product after refining the giant salamander liver oil can be collected by treatment (continuous treatment can also be carried out) under the conditions of 40bar pressure and 16L/h propane flow rate.
Examples
1000 g of olive oil is put into an oil storage tank and refined by different separating devices, and the degumming tank has a set temperature of 25 DEG C o C, the pressure is 30bar, and the deacidification tank temperature is set to be 50 o C. The pressure was 30bar and the decolorizing tank temperature was set to 50 o C. The pressure was 30bar and the collecting tank temperature was set to 50 o C. The pressure is 30bar, and the temperature of the deodorization tank is set to be 50 o C. The oil product after the olive oil refining can be collected by treatment (continuous treatment can also be carried out) under the conditions of 30bar pressure and 14L/h propane flow rate.
Examples
1000 g of tea seed oil is taken and put into an oil storage tank, refined by different separating devices, and the degumming tank is set at 40 o C, the pressure is 40bar, the deacidification tank, the decoloration tank, the deodorization tank and the collecting tank, and the temperatures of the four tank bodies are all set to be 60 o C. The oil product after refining the tea seed oil can be collected by treatment (continuous treatment can also be carried out) under the conditions of 45bar pressure and 18L/h propane flow rate.
Examples
1000 g peanut oil is put into an oil storage tank, refined by different separating devices, the degumming tank is not set with temperature and pressure of 35bar, and the temperature of a deacidification tank and a decolorizing tank is set with 50 o C. The pressure was 35bar and the collecting tank temperature was 45 o C. The pressure is 40bar, and the temperature of the deodorization tank is set to be 50 o C. The oil product after peanut oil refining can be collected by treatment (continuous feeding treatment can also be carried out) under the conditions of 40bar pressure and 15L/h propane flow rate.
Examples
1000 g of edible waste oil is put into an oil storage tank, refined by different separating devices, the degumming tank is not set with temperature and pressure of 35bar, and the temperature of the deacidification tank and the decolorizing tank is set to be 50 o C. The pressure was 35bar and the collecting tank temperature was 45 o C. The pressure is 40bar, and the temperature of the deodorization tank is set to be 50 o C. The refined oil product can be collected by treatment (continuous treatment with feed is also possible) under the conditions of 40bar and 15L/h propane flow rate.
The above embodiments are only for illustrating the present invention, not for limiting the present invention, and various changes and modifications may be made by one of ordinary skill in the relevant art without departing from the spirit and scope of the present invention, and therefore, all equivalent technical solutions are also within the scope of the present invention, and the scope of the present invention is defined by the claims.

Claims (6)

1. A method for refining liquid grease at low temperature is characterized in that: the method comprises the following steps:
s1, placing liquid grease into an oil storage tank, pumping the liquid grease into a degumming tank by a grease pump, and pumping gaseous propane into the degumming tank at the same time, so that the liquid grease and the gaseous propane are mixed and degummed in the degumming tank;
s2, refining the mixture of the S1 according to a tank body device which sequentially passes through a degumming tank, a deacidification tank, a decoloring tank, a collecting tank and a deodorizing tank; wherein:
1) Degumming: the separator is arranged in the degumming tank, so that impurities or oil with larger molecules can be left in the degumming tank by utilizing the low-temperature condensation effect;
2) Deacidifying: food-grade sodium hydroxide is placed in the deacidification tank body, and deacidification is carried out on the oil by utilizing the acid-base neutralization principle;
3) Decoloring: the bleaching tank is internally provided with silica clay for adsorbing natural pigment, so that the problem of subsequent oxidation of oil quality is reduced;
4) And (3) collecting: separating oil quality from propane by heating treatment;
5) Deodorizing: the gasified propane enters a deodorizing tank, the deodorizing effect is achieved by using active carbon, and the propane gas flows back to a storage tank to achieve the recycling effect; and setting the extraction time to be 30-240 minutes for treatment, and collecting the fish oil refined extract.
2. A method of refining liquid fats & oils at low temperature according to claim 1, characterized in that: the fluid is propane, and the flow rate of the propane is set to be 5-30L/h.
3. A method of refining liquid fats & oils at low temperature according to claim 2, characterized in that: the degumming tank comprises: temperature 10 o C~60 o C. The pressure is 15-45 bar.
4. A method of refining liquid fats & oils at low temperature according to claim 3, characterized in that: the deacidification groove comprises: temperature 25 o C~90 o C. The pressure is 15-45 bar.
5. The method for refining liquid fat at low temperature according to claim 4, wherein: the decoloring tank comprises: temperature 25 o C~90 o C. The pressure is 15-45 bar.
6. The method for refining liquid fat at low temperature according to claim 5, wherein: the deodorization tank comprises: temperature 25 o C~90 o C. The pressure is 15-45 bar.
CN202310137953.1A 2023-02-20 2023-02-20 Method for refining liquid grease at low temperature Pending CN116286176A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310137953.1A CN116286176A (en) 2023-02-20 2023-02-20 Method for refining liquid grease at low temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310137953.1A CN116286176A (en) 2023-02-20 2023-02-20 Method for refining liquid grease at low temperature

Publications (1)

Publication Number Publication Date
CN116286176A true CN116286176A (en) 2023-06-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310137953.1A Pending CN116286176A (en) 2023-02-20 2023-02-20 Method for refining liquid grease at low temperature

Country Status (1)

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CN (1) CN116286176A (en)

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