CN114507564A - Method for degreasing and purifying waste edible oil - Google Patents
Method for degreasing and purifying waste edible oil Download PDFInfo
- Publication number
- CN114507564A CN114507564A CN202210022146.0A CN202210022146A CN114507564A CN 114507564 A CN114507564 A CN 114507564A CN 202210022146 A CN202210022146 A CN 202210022146A CN 114507564 A CN114507564 A CN 114507564A
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- CN
- China
- Prior art keywords
- oil
- waste
- edible oil
- decoloring
- waste edible
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Classifications
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/04—Organic material, e.g. cellulose, cotton
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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
- C11B3/008—Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis
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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
- C11B3/02—Refining fats or fatty oils by chemical reaction
- C11B3/06—Refining fats or fatty oils by chemical reaction with bases
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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
- C11B3/12—Refining fats or fatty oils by distillation
-
- 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
- C11B3/16—Refining fats or fatty oils by mechanical means
Abstract
The invention discloses a method for degreasing and purifying waste edible oil, and relates to the technical field of waste edible oil treatment. The method mainly comprises the following steps of collecting, removing impurities, carrying out alkali washing coagulation, standing for layering, decoloring, deodorizing, filtering, recovering grease, distilling, uniformly mixing H-type modified polypropylene fiber, ferroferric oxide powder, phosphate rock powder and polymeric ferric sulfate, and filling the mixture into a reaction tank to form a primary filter layer, wherein the weight ratio of the H-type modified polypropylene fiber to the ferroferric oxide powder to the polymeric ferric sulfate is 8:2:1: 1. According to the invention, the waste oil is decolorized to become clear refined oil, meanwhile, peculiar smell in the waste oil is effectively taken out by deodorizing, then impurity removal and filtration are carried out, and other steps are matched to effectively treat the waste oil and remove impurities and other harmful substances in the waste oil, so that the value of the oil is improved, and the use standard of the feed oil is reached.
Description
Technical Field
The invention belongs to the technical field of waste edible oil treatment, and particularly relates to a method for degreasing and purifying waste edible oil.
Background
Along with the rapid development of economy in China, the catering industry and the tourism industry are developed, and the related problems are that the amount of waste edible oil in the catering industry such as hotels and the like is increased, part of the waste oil is utilized by lawless persons, so that the physical harm is seriously caused, and meanwhile, the panic is caused in the masses. If the waste oil cannot be well utilized, the waste oil is also a serious waste, and the waste oil can be used as a feed oil raw material by a proper treatment method on the premise of ensuring the safety of animal feeding and animal products, which is an important way for utilizing the waste edible oil in the kitchen, so that the potential food safety hazard can be eliminated, and the resources can be well utilized.
The present processing method to abandonment edible oil is direct use again after all directly taking out the impurity in the oil mostly, but still does not have thorough processing totally to the influence is used, still can cause certain injury to the human body, and at present to the processing of abandonment edible oil mostly all to the grease degrease in the oil not thorough, the effect is relatively poor, thereby influences treatment effect.
Disclosure of Invention
The invention aims to provide a method for degreasing and purifying waste edible oil and fat, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a method for degreasing and purifying waste edible oil, which mainly comprises the following steps of collecting, removing impurities, carrying out alkali washing coagulation, standing for layering, decoloring, deodorizing, filtering, recovering oil, distilling, uniformly mixing H-type modified polypropylene fiber, ferroferric oxide powder, phosphorus ore powder and polymeric ferric sulfate, and filling the mixture into a reaction tank to form a primary filtering layer, wherein the weight ratio of the H-type modified polypropylene fiber to the ferroferric oxide powder to the polymeric ferric sulfate is 8:2:1: 1.
Preferably, the method specifically comprises the following steps,
step (1) and collection: after passing kitchen wastewater through a first-stage filter layer, respectively collecting a water layer and waste edible oil obtained after filtering;
step (2), removing impurities: vacuum filtering the waste edible oil at 55-65 deg.C to remove impurities in the oil;
step (3), alkali washing coagulation: dilute alkali liquor or coagulant is stirred and is poured into the waste oil in a reaction tank in a spraying mode, wherein the alkali liquor is sodium hydroxide or sodium carbonate or baking soda, and the coagulant is polyaluminium sulfate or polyacrylamide;
step (4), standing and layering: stopping stirring the reaction tank in the step (3), standing for 2-4 hours, opening a bottom valve and discharging a water phase below the tank;
and (5) decoloring: adding a decoloring agent with the oil amount of 3-5% under stirring, decoloring at the temperature of 100 DEG and the temperature of-120 ℃, wherein the decoloring time is 1-2 hours;
step (6), deodorization: adding an odor removing oil agent with the oil amount of 1-2% under stirring at 30-40 deg. for 1-2 hours. Deodorant active carbon;
step (7), filtering: separating the decolorant and the deodorizer in the grease and adsorbed substances by adopting a plate-and-frame filter pressing or high-efficiency centrifugation mode at normal temperature;
step (8), recovering grease: evaporating and removing the solvent by using a rotary evaporator to recover the grease;
step (9), distillation: performing molecular distillation on the treated grease at the temperature of 120-130 ℃, and adding 0.1 wt% of propyl gallate of the grease to obtain the oil.
Preferably, the decolorizing agent in step (5) is activated clay.
Preferably, the suction filtration temperature in the step (2) is 60 ℃.
Preferably, the temperature in step (9) is 125 ℃.
The invention has the following beneficial effects:
according to the invention, the waste oil is decolorized to become clear and refined oil, meanwhile, odor in the waste oil is effectively taken out by deodorizing, the waste oil is effectively treated by matching with other steps, and impurities in the waste oil and other harmful substances are removed, so that the value of the oil is improved, and the use standard of the feed oil is reached.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flow chart of the method for degreasing and purifying the waste edible oil and fat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the invention relates to a method for degreasing and purifying waste edible oil, which mainly comprises the following steps of collecting, removing impurities, carrying out alkali washing and condensation, standing and layering, decoloring, deodorizing, filtering, recovering oil, distilling, uniformly mixing H-type modified polypropylene fiber, ferroferric oxide powder, phosphorus ore powder and polymeric ferric sulfate, and filling the mixture into a reaction tank to form a primary filter layer, wherein the weight ratio of the H-type modified polypropylene fiber to the ferroferric oxide powder to the polymeric ferric sulfate is 8:2:1: 1.
Wherein, the method specifically comprises the following steps,
step (1) and collection: after passing kitchen wastewater through a first-stage filter layer, respectively collecting a water layer and waste edible oil obtained after filtering;
step (2), removing impurities: vacuum filtering the waste edible oil at 55-65 deg.C to remove impurities in the oil;
step (3), alkali washing coagulation: dilute alkali liquor or coagulant is stirred and is sprayed into the waste oil and fat in a reaction tank in a spraying mode, wherein the alkali liquor can be sodium hydroxide or sodium carbonate or baking soda, and the coagulant can be polyaluminium sulfate or polyacrylamide;
step (4), standing and layering: stopping stirring the reaction tank in the step (3), standing for 2-4 hours, opening a bottom valve and discharging a water phase below the tank;
and (5) decoloring: adding a decoloring agent with the oil amount of 3-5% under stirring, decoloring at the temperature of 100-120 ℃, wherein the decoloring time is 1-2 hours;
step (6), deodorization: adding an odor removing oil agent with the oil amount of 1-2% under stirring, and removing odor at 30-40 deg.C for 1-2 hr. Deodorant active carbon;
step (7), filtering: separating the decolorant and the deodorizer in the grease and adsorbed substances by adopting a plate-and-frame filter pressing or high-efficiency centrifugation mode at normal temperature;
step (8), recovering grease: evaporating and removing the solvent by using a rotary evaporator to recover the grease;
step (9), distillation: performing molecular distillation on the treated grease at the temperature of 120-130 ℃, and adding 0.1 wt% of propyl gallate of the grease to obtain the oil.
Wherein the decolorizing agent in the step (5) is activated clay.
Wherein the suction filtration temperature in the step (2) is 60 ℃.
Wherein the temperature in the step (9) is 125 ℃.
In this embodiment, through carrying out the decoloration for waste oil becomes clear exquisite grease, smells through removing simultaneously, and the effectual peculiar smell that takes out in the waste oil, cooperates other steps to carry out effectual processing to waste oil, gets rid of impurity in the waste oil and other harmful substance together, thereby promotes the value of grease, reaches feed oil service standard.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. The method is characterized by mainly comprising the following steps of collecting, removing impurities, carrying out alkali washing coagulation, standing layering, decoloring, deodorizing, filtering, recovering oil, distilling, uniformly mixing H-type modified polypropylene fiber, ferroferric oxide powder, phosphorus ore powder and polymeric ferric sulfate, and filling the mixture into a reaction tank to form a primary filter layer, wherein the weight ratio of the H-type modified polypropylene fiber to the ferroferric oxide powder to the polymeric ferric sulfate is 8:2:1: 1.
2. The method for degreasing and purifying the waste edible oil and fat as claimed in claim 1, which comprises the following steps,
step (1) and collection: after passing kitchen wastewater through a first-stage filter layer, respectively collecting a water layer and waste edible oil obtained after filtering;
step (2), removing impurities: vacuum filtering the waste edible oil at 55-65 deg.C to remove impurities in the oil;
step (3), alkali washing coagulation: dilute alkali liquor or coagulant is stirred and is poured into the waste oil in a reaction tank in a spraying mode, wherein the alkali liquor is sodium hydroxide or sodium carbonate or baking soda, and the coagulant is polyaluminium sulfate or polyacrylamide;
step (4), standing and layering: stopping stirring the reaction tank in the step (3), standing for 2-4 hours, opening a bottom valve and discharging a water phase below the tank;
and (5) decoloring: adding a decoloring agent with the oil amount of 3-5% under stirring, decoloring at the temperature of 100-120 ℃, wherein the decoloring time is 1-2 hours;
step (6), deodorization: adding an odor removing oil agent with the oil amount of 1-2% under stirring, and removing odor at 30-40 deg.C for 1-2 hr. Deodorant active carbon;
step (7), filtering: separating the decolorant and the deodorizer in the grease and adsorbed substances by adopting a plate-and-frame filter pressing or high-efficiency centrifugation mode at normal temperature;
step (8), recovering grease: evaporating and removing the solvent by using a rotary evaporator to recover the grease;
step (9), distillation: performing molecular distillation on the treated grease at the temperature of 120-130 ℃, and adding 0.1 wt% of propyl gallate of the grease to obtain the oil.
3. The method for degreasing and purifying the waste edible oil and fat as claimed in claim 2, wherein the decoloring agent in the step (5) is activated clay.
4. The method for degreasing and purifying the waste edible oil and fat as claimed in claim 2, wherein the suction filtration temperature in the step (2) is 60 ℃.
5. The method for degreasing and purifying waste edible oil and fat as claimed in claim 2, wherein the temperature in the step (9) is 125 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210022146.0A CN114507564A (en) | 2022-01-10 | 2022-01-10 | Method for degreasing and purifying waste edible oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210022146.0A CN114507564A (en) | 2022-01-10 | 2022-01-10 | Method for degreasing and purifying waste edible oil |
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| Publication Number | Publication Date |
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| CN114507564A true CN114507564A (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210022146.0A Pending CN114507564A (en) | 2022-01-10 | 2022-01-10 | Method for degreasing and purifying waste edible oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115505460A (en) * | 2022-10-10 | 2022-12-23 | 深圳市中兴恒熙环保有限公司 | Method for extracting waste grease from kitchen waste |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108102781A (en) * | 2017-11-15 | 2018-06-01 | 苏州纳贝通环境科技有限公司 | A kind of processing method of waste cooking oils |
| CN108277083A (en) * | 2017-11-11 | 2018-07-13 | 杭州众盛新科技有限公司 | A kind of processing method of waste in-ore rate |
-
2022
- 2022-01-10 CN CN202210022146.0A patent/CN114507564A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277083A (en) * | 2017-11-11 | 2018-07-13 | 杭州众盛新科技有限公司 | A kind of processing method of waste in-ore rate |
| CN108102781A (en) * | 2017-11-15 | 2018-06-01 | 苏州纳贝通环境科技有限公司 | A kind of processing method of waste cooking oils |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115505460A (en) * | 2022-10-10 | 2022-12-23 | 深圳市中兴恒熙环保有限公司 | Method for extracting waste grease from kitchen waste |
| CN115505460B (en) * | 2022-10-10 | 2023-08-15 | 深圳市中兴恒熙环保有限公司 | Method for extracting waste grease from kitchen waste |
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