CN113025433A - Preparation method for producing fatty acid - Google Patents
Preparation method for producing fatty acid Download PDFInfo
- Publication number
- CN113025433A CN113025433A CN202011320362.0A CN202011320362A CN113025433A CN 113025433 A CN113025433 A CN 113025433A CN 202011320362 A CN202011320362 A CN 202011320362A CN 113025433 A CN113025433 A CN 113025433A
- Authority
- CN
- China
- Prior art keywords
- fatty acid
- oil
- swill
- separated
- solid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 235000014113 dietary fatty acids Nutrition 0.000 title claims abstract description 46
- 229930195729 fatty acid Natural products 0.000 title claims abstract description 46
- 239000000194 fatty acid Substances 0.000 title claims abstract description 46
- 150000004665 fatty acids Chemical class 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 18
- 238000000926 separation method Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 230000001376 precipitating effect Effects 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 12
- 238000004064 recycling Methods 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 238000010411 cooking Methods 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000004332 deodorization Methods 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 238000004821 distillation Methods 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 239000000413 hydrolysate Substances 0.000 claims abstract description 6
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 6
- 239000010806 kitchen waste Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 238000011084 recovery Methods 0.000 claims abstract description 6
- 239000002351 wastewater Substances 0.000 claims abstract description 6
- 230000007062 hydrolysis Effects 0.000 claims description 10
- 238000006460 hydrolysis reaction Methods 0.000 claims description 10
- 239000000701 coagulant Substances 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 239000004519 grease Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 32
- 238000009835 boiling Methods 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000008162 cooking oil Substances 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C1/00—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids
- C11C1/02—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids from fats or fatty oils
- C11C1/04—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids from fats or fatty oils by hydrolysis
-
- 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
- C11B13/00—Recovery of fats, fatty oils or fatty acids from waste materials
-
- 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
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C1/00—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids
- C11C1/08—Refining
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C1/00—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids
- C11C1/08—Refining
- C11C1/10—Refining by distillation
-
- 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
Landscapes
- 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)
- Fats And Perfumes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A preparation method for producing fatty acid comprises 1) recovering kitchen waste and collecting the waste through a mobile phone system; 2) the swill garbage is separated from the solid garbage by an automatic separation system, the separated swill garbage is separated by a solid-liquid separation system to obtain recovered liquid, and the solid is reserved for recycling; 3) pumping the recovered liquid into a recovery tank, introducing steam for cooking, cooling and precipitating when the material turns over, wherein deodorization treatment is carried out; 4) performing oil-water separation, and filtering impurities; 5) acidifying swill oil; 6) discharging the generated wastewater, and separating acidified oil from impurities; 7) mixing the acidified oil obtained in the step 7) with water, and then hydrolyzing; 8) precipitating the hydrolysate to obtain black fatty acid; 9) heating and dehydrating the black fatty acid by using steam; 10) and (3) carrying out negative pressure distillation on the black fatty acid to obtain transparent white fatty acid. The fatty acid prepared by the method has high activity, good flexibility, strong fluidity and low price.
Description
Technical Field
The invention belongs to the technical field of chemical production, and particularly relates to a preparation method for producing fatty acid.
Background
The swill oil is the waste material discharged after refining in the process of producing vegetable edible oil, and can be directly utilized due to the excessive alkali content. The discharge of oil residue can destroy soil and cause environmental pollution. At present, although fatty acid is produced by preparing acidified oil by cooking oil residue, the method is extremely laggard, and a catalyst is required to be added for saponification and acidolysis, so that the method is a non-industrial earth method, and the acid water and waste residue discharged by the earth method can cause new pollution and damage to lakes and soil.
Disclosure of Invention
In order to overcome the above-mentioned disadvantages of the prior art, it is an object of the present invention to provide a preparation method for producing fatty acids.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method for producing fatty acid is characterized by comprising the following steps:
1) recycling the kitchen waste and collecting the waste through a mobile phone system;
2) the swill garbage is separated from the solid garbage by an automatic separation system, the separated swill garbage is separated by a solid-liquid separation system to obtain recovered liquid, and the solid is reserved for recycling;
3) pumping the recovered liquid into a recovery tank, introducing steam for cooking, adding 1-3 parts of grease coagulant according to the mass ratio of the liquid when the material turns over, continuing cooking for 3-5 hours, cooling, precipitating for 2-3 hours, and performing deodorization treatment;
4) after oil-water separation and impurity filtration, the refined swill oil is obtained after natural condensation;
5) acidizing the swill oil obtained in the step 4) to obtain acidized oil with the pH value of 6-8;
6) discharging the generated wastewater, and then separating the acidified oil with the pH value of 6-8 discharged in the step 5) from impurities;
7) mixing the acidified oil obtained in the step 7) with water, and then hydrolyzing;
8) precipitating the hydrolysate to obtain black fatty acid;
9) heating and dehydrating the black fatty acid by using steam;
10) and (3) carrying out negative pressure distillation on the black fatty acid to obtain transparent white fatty acid.
In the method for preparing fatty acid, the mixing ratio of the acidified oil and water is 3: 1; the temperature during hydrolysis is 110-130 ℃, the pressure is 1Mpa, and the hydrolysis time is 6-8 hours.
The beneficial effects of the invention relative to the prior art are as follows:
1. the method of the invention realizes the purpose of reasonably utilizing the swill oil, not only can fully utilize the swill oil to produce qualified fatty acid products, but also solves the problem that the swill oil pollutes the environment.
2. Compared with the prior art, the method for preparing the fatty acid by boiling the oil residue to prepare the acidified oil does not generate the problem of secondary environmental pollution and does not need to add a catalyst.
3. The method has simple process principle, less equipment investment and easy implementation.
4. In the process of preparing fatty acid by the method, byproducts can be produced and sold as raw materials of the separant; and the high-boiling residue stearin pitch can be used as a sand consolidation agent for molding in the precision casting industry, so that the comprehensive economic effect is obvious.
Detailed Description
The present invention will be described in detail with reference to specific examples.
Example 1
A method of producing fatty acids comprising the steps of:
1) recycling the kitchen waste and collecting the waste through a mobile phone system;
2) the swill garbage is separated from the solid garbage by an automatic separation system, the separated swill garbage is separated by a solid-liquid separation system to obtain recovered liquid, and the solid is reserved for recycling;
3) pumping the recovered liquid into a recovery tank, introducing steam for cooking, adding 1 part of grease coagulant according to the mass ratio of the liquid when the material turns over, continuing to cook for 3 hours, cooling, precipitating for 2 hours, and performing deodorization treatment;
4) after oil-water separation and impurity filtration, the refined swill oil is obtained after natural condensation;
5) acidizing the swill oil obtained in the step 4) to obtain acidized oil with the pH value of 6;
6) discharging the generated wastewater, and then separating the acidified oil with the pH value of 6 discharged in the step 5) from impurities;
7) mixing the acidified oil obtained in the step 7) with water, and then hydrolyzing;
8) precipitating the hydrolysate to obtain black fatty acid;
9) heating and dehydrating the black fatty acid by using steam;
10) and (3) carrying out negative pressure distillation on the black fatty acid to obtain transparent white fatty acid.
In the method for preparing fatty acid, the mixing ratio of the acidified oil and water is 3: 1; the temperature during hydrolysis is 110 ℃, the pressure is 1Mpa, and the hydrolysis time is 6 hours.
The white liquid fatty acid appearance achieved a white 2-3# color.
Example 2
A method of producing fatty acids comprising the steps of:
1) recycling the kitchen waste and collecting the waste through a mobile phone system;
2) the swill garbage is separated from the solid garbage by an automatic separation system, the separated swill garbage is separated by a solid-liquid separation system to obtain recovered liquid, and the solid is reserved for recycling;
3) pumping the recovered liquid into a recovery tank, introducing steam for cooking, adding 2 parts of grease coagulant according to the mass ratio of the liquid when the material turns over, continuing cooking for 3-5 hours, cooling, precipitating for 2.5 hours, and performing deodorization treatment;
4) after oil-water separation and impurity filtration, the refined swill oil is obtained after natural condensation;
5) acidizing the swill oil obtained in the step 4) to obtain acidized oil with the pH value of 7;
6) discharging the generated wastewater, and then separating the acidified oil with the pH value of 7 discharged in the step 5) from impurities;
7) mixing the acidified oil obtained in the step 7) with water, and then hydrolyzing;
8) precipitating the hydrolysate to obtain black fatty acid;
9) heating and dehydrating the black fatty acid by using steam;
10) and (3) carrying out negative pressure distillation on the black fatty acid to obtain transparent white fatty acid.
In the method for preparing fatty acid, the mixing ratio of the acidified oil and water is 3: 1; the temperature during hydrolysis is 120 ℃, the pressure is 1Mpa, and the hydrolysis time is 7 hours. The white liquid fatty acid appearance achieved a white 2-3# color.
Example 3
A method of producing fatty acids comprising the steps of:
1) recycling the kitchen waste and collecting the waste through a mobile phone system;
2) the swill garbage is separated from the solid garbage by an automatic separation system, the separated swill garbage is separated by a solid-liquid separation system to obtain recovered liquid, and the solid is reserved for recycling;
3) pumping the recovered liquid into a recovery tank, introducing steam for cooking, adding 3 parts of grease coagulant according to the mass ratio of the liquid when the material turns over, continuing to cook for 3-5 hours, cooling, precipitating for 3 hours, and performing deodorization treatment;
4) after oil-water separation and impurity filtration, the refined swill oil is obtained after natural condensation;
5) acidizing the swill oil obtained in the step 4) to obtain acidized oil with the pH value of 8;
6) discharging the generated wastewater, and then separating the acidified oil with the pH value of 8 discharged in the step 5) from impurities;
7) mixing the acidified oil obtained in the step 7) with water, and then hydrolyzing;
8) precipitating the hydrolysate to obtain black fatty acid;
9) heating and dehydrating the black fatty acid by using steam;
10) and (3) carrying out negative pressure distillation on the black fatty acid to obtain transparent white fatty acid.
In the method for preparing fatty acid, the mixing ratio of the acidified oil and water is 3: 1; the hydrolysis temperature is 130 deg.C, pressure is 1Mpa, and hydrolysis time is 8 hr. The white liquid fatty acid appearance achieved a white 2-3# color.
Claims (2)
1. A preparation method for producing fatty acid is characterized by comprising the following steps:
1) recycling the kitchen waste and collecting the waste through a mobile phone system;
2) the swill garbage is separated from the solid garbage by an automatic separation system, the separated swill garbage is separated by a solid-liquid separation system to obtain recovered liquid, and the solid is reserved for recycling;
3) pumping the recovered liquid into a recovery tank, introducing steam for cooking, adding 1-3 parts of grease coagulant according to the mass ratio of the liquid when the material turns over, continuing cooking for 3-5 hours, cooling, precipitating for 2-3 hours, and performing deodorization treatment;
4) after oil-water separation and impurity filtration, the refined swill oil is obtained after natural condensation;
5) acidizing the swill oil obtained in the step 4) to obtain acidized oil with the pH value of 6-8;
6) discharging the generated wastewater, and then separating the acidified oil with the pH value of 6-8 discharged in the step 5) from impurities;
7) mixing the acidified oil obtained in the step 7) with water, and then hydrolyzing;
8) precipitating the hydrolysate to obtain black fatty acid;
9) heating and dehydrating the black fatty acid by using steam;
10) and (3) carrying out negative pressure distillation on the black fatty acid to obtain transparent white fatty acid.
2. The method of claim 1, wherein the acidified oil is mixed with water at a ratio of 3: 1; the temperature during hydrolysis is 110-130 ℃, the pressure is 1Mpa, and the hydrolysis time is 6-8 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011320362.0A CN113025433A (en) | 2020-11-23 | 2020-11-23 | Preparation method for producing fatty acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011320362.0A CN113025433A (en) | 2020-11-23 | 2020-11-23 | Preparation method for producing fatty acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113025433A true CN113025433A (en) | 2021-06-25 |
Family
ID=76459243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011320362.0A Pending CN113025433A (en) | 2020-11-23 | 2020-11-23 | Preparation method for producing fatty acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113025433A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821376A (en) * | 2006-02-10 | 2006-08-23 | 杨解定 | Mixed fatty acid and its prepn process and application |
| CN102586042A (en) * | 2012-03-02 | 2012-07-18 | 杨解定 | System device for extracting swill-cooked dirty oil as well as application method of extracted swill-cooked dirty oil and swill-cooked dirty oil |
| CN110818837A (en) * | 2019-08-19 | 2020-02-21 | 南昌大学 | Maleate polymer, waste edible oil coagulant and preparation method thereof |
| CN111909788A (en) * | 2020-07-01 | 2020-11-10 | 安徽锦华氧化锌有限公司 | Preparation method of zinc oxide waste edible oil coagulant |
-
2020
- 2020-11-23 CN CN202011320362.0A patent/CN113025433A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821376A (en) * | 2006-02-10 | 2006-08-23 | 杨解定 | Mixed fatty acid and its prepn process and application |
| CN102586042A (en) * | 2012-03-02 | 2012-07-18 | 杨解定 | System device for extracting swill-cooked dirty oil as well as application method of extracted swill-cooked dirty oil and swill-cooked dirty oil |
| CN110818837A (en) * | 2019-08-19 | 2020-02-21 | 南昌大学 | Maleate polymer, waste edible oil coagulant and preparation method thereof |
| CN111909788A (en) * | 2020-07-01 | 2020-11-10 | 安徽锦华氧化锌有限公司 | Preparation method of zinc oxide waste edible oil coagulant |
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Application publication date: 20210625 |
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