CN105542949A - Method for removing free fatty acid in grease - Google Patents
Method for removing free fatty acid in grease Download PDFInfo
- Publication number
- CN105542949A CN105542949A CN201510920829.8A CN201510920829A CN105542949A CN 105542949 A CN105542949 A CN 105542949A CN 201510920829 A CN201510920829 A CN 201510920829A CN 105542949 A CN105542949 A CN 105542949A
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- China
- Prior art keywords
- oil
- fatty acid
- oil plant
- refining
- mist
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Classifications
-
- 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
- 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
- C11C1/005—Splitting up mixtures of fatty acids into their constituents
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fats And Perfumes (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention provides a method for removing free fatty acid in grease. The method comprises seven steps: oil material pretreatment, primary heating, spray atomization, addition of a fatty acid trapping agent, condensation and separation of fatty acid, secondary heating and refining operation. The method has the advantages of simple process, high control precision and lower requirements on processing and production conditions; on one hand, the free fatty acid in the grease can be removed efficiently, and the fatty acid with higher added value is obtained while the grease quality is improved; and on the other hand, the equipment operation rate and the resource utilization rate can be effectively improved, so as to achieve the effect of reducing production costs.
Description
Technical field
The present invention relates to a kind of method for removing grease free fatty acid, belonging to oil and fat refining technical field of producing.
Background technology
In the production process of current grease, a large amount of lipid acid is often contained in rough grease, these lipid acid have high economic worth on the one hand, also the use properties of grease can be caused can not to meet the service requirements of expection simultaneously, have a strong impact on the quality of grease, produce and use cost, therefore in the current processing carrying out grease, all can the lipid acid in grease be trapped, realize lipid acid to be separated with grease, improve oil quality on the one hand, the higher lipid acid of added value can be obtained on the other hand, but due in current lipid acid trapping process, because of equipment, the reason such as technique and operation, after lipid acid trapping operation, a large amount of free state fat acid still can be remained in grease, thus cause great detrimentally affect to oil quality, therefore for this present situation, and for this problem, currently there is no effective treatment process, therefore for this present situation, need to develop a kind of method removing grease free fatty acid completely newly, with the needs that satisfied reality uses.
Summary of the invention
The object of this invention is to provide and the invention provides a kind of method for removing grease free fatty acid.
In order to achieve the above object, the invention provides following technical scheme:
For removing a method for grease free fatty acid, comprise the steps:
The first step, oil plant pre-treatment, the oil plant treating separation of free fatty acids carries out preheating and blower operations, is then input in separation vessel by the oil plant through preheating and supercharging;
Second step, once heats, and before the oil plant through preheating and supercharging enters into separation vessel, by heating unit, oil plant temperature is risen to 200 DEG C-270 DEG C, then in separation vessel;
3rd step, spray atomizing, utilize atomizer to be carried out spraying and being atomized from separation vessel top by the oil plant be incorporated in separation vessel, while oil plant carries out spray operation, bottom separating device, upwards spray into high-temperature high-pressure steam, and water vapor is mixed with mist of oil, mixing time is 20 minutes-60 minutes, and obtains lipid acid and water vapor mixed steam, when water vapour mixes with mist of oil, temperature in separation vessel is 240 DEG C-380 DEG C, and air pressure is 0.01-0.03MPa;
4th step, add collection agent, while water vapor mixes with mist of oil, add in water vapor and mist of oil mixed gas and enter collection agent, and make collection agent and water vapor and mist of oil Homogeneous phase mixing, wherein collection agent total amount is not more than 1/4 of water vapor and mist of oil total amount;
5th step, condensation separation lipid acid, by through the water vapour that mix with mist of oil, collection agent by negative pressure from separation vessel Base top contact, and be incorporated in condensing works and cool, the oil plant be left is incorporated in refining and deodorizing tower;
6th step, second-heating, remaining oil plant, entering before in refining and deodorizing tower, carries out second-heating by heating unit to it, and after heating, the temperature of oil plant is 250 DEG C-300 DEG C, then enters into refining and deodorizing tower;
7th step, refinery process, oil plant enters into after in refining and deodorizing tower, utilizes refining and deodorizing tower to carry out refining, deodorization, depickling, decolorization operations to oil plant, and finally obtains processed oil.
Further, in the 3rd described step, steam temperature is not less than 150 DEG C, and pressure is not less than 1 times of standard atmospheric pressure.
Further, in the 3rd described step, when carrying out water vapour and mixing with rough grease, separately at the uniform velocity mix auxiliary stirring by whipping appts.
Further, described water vapour passed through inorganic salt molecule and oxygen molecule at least one times and filters before being incorporated in separation vessel;
Further, pass through the water vapour mixed with mist of oil, collection agent in the 5th described step before entering condensing works, first carry out at least one deck through filtration unit and filter.
Further, in the 6th described step, when carrying out refining to oil plant, in refining and deodorizing tower, pressure is not more than 133Pa, and when carrying out deodorization, depickling, decolorization operations, in refining and deodorizing tower, pressure is not more than 660Pa.
Further, described water vapour and the mass ratio of mist of oil are at least 3:1.
Present invention process is simple, control accuracy is high and lower to processing conditional request, efficiently the lipid acid dissociated in grease can be removed on the one hand, the higher lipid acid of added value is obtained while improving oil quality, can effectively improve operation rate and resource utilization on the other hand, thus reach the effect reducing production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is present invention process schema.
Embodiment
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
A kind of method for removing grease free fatty acid as shown in Figure 1, comprises the steps:
The first step, oil plant pre-treatment, the oil plant treating separation of free fatty acids carries out preheating and blower operations, is then input in separation vessel by the oil plant through preheating and supercharging;
Second step, once heats, and before the oil plant through preheating and supercharging enters into separation vessel, by heating unit, oil plant temperature is risen to 240 DEG C, then in separation vessel;
3rd step, spray atomizing, utilize atomizer to be carried out spraying and being atomized from separation vessel top by the oil plant be incorporated in separation vessel, while oil plant carries out spray operation, bottom separating device, upwards spray into high-temperature high-pressure steam, and water vapor is mixed with mist of oil, mixing time is 50 minutes, and obtains lipid acid and water vapor mixed steam, when water vapour mixes with mist of oil, temperature in separation vessel is 260 DEG C, and air pressure is 0.02MPa;
4th step, add collection agent, while water vapor mixes with mist of oil, add in water vapor and mist of oil mixed gas and enter collection agent, and make collection agent and water vapor and mist of oil Homogeneous phase mixing, wherein collection agent total amount is 1/5 of water vapor and mist of oil total amount;
5th step, condensation separation lipid acid, by through the water vapour that mix with mist of oil, collection agent by negative pressure from separation vessel Base top contact, and be incorporated in condensing works and cool, the oil plant be left is incorporated in refining and deodorizing tower;
6th step, second-heating, remaining oil plant, entering before in refining and deodorizing tower, carries out second-heating by heating unit to it, and after heating, the temperature of oil plant is 260 DEG C, then enters into refining and deodorizing tower;
7th step, refinery process, oil plant enters into after in refining and deodorizing tower, utilizes refining and deodorizing tower to carry out refining, deodorization, depickling, decolorization operations to oil plant, and finally obtains processed oil.
In the present embodiment, in the 3rd described step, steam temperature is 200 DEG C, and pressure is 2 times of standard atmospheric pressures.
In the present embodiment, in the 3rd described step, when carrying out water vapour and mixing with rough grease, separately at the uniform velocity mix auxiliary stirring by whipping appts.
In the present embodiment, described water vapour was filtered by one-level inorganic salt molecule and oxygen molecule before being incorporated in separation vessel;
In the present embodiment, pass through the water vapour mixed with mist of oil, collection agent in the 5th described step before entering condensing works, first carry out cascade filtration through filtration unit.
In the present embodiment, in the 6th described step, when carrying out refining to oil plant, in refining and deodorizing tower, pressure is 100Pa, and when carrying out deodorization, depickling, decolorization operations, in refining and deodorizing tower, pressure is 600Pa.
In the present embodiment, described water vapour and the mass ratio of mist of oil are 4:1.
Present invention process is simple, control accuracy is high and lower to processing conditional request, efficiently the lipid acid dissociated in grease can be removed on the one hand, the higher lipid acid of added value is obtained while improving oil quality, can effectively improve operation rate and resource utilization on the other hand, thus reach the effect reducing production cost.
Embodiment 2
A kind of method for removing grease free fatty acid as shown in Figure 1, comprises the steps:
The first step, oil plant pre-treatment, the oil plant treating separation of free fatty acids carries out preheating and blower operations, is then input in separation vessel by the oil plant through preheating and supercharging;
Second step, once heats, and before the oil plant through preheating and supercharging enters into separation vessel, by heating unit, oil plant temperature is risen to 230 DEG C, then in separation vessel;
3rd step, spray atomizing, utilize atomizer to be carried out spraying and being atomized from separation vessel top by the oil plant be incorporated in separation vessel, while oil plant carries out spray operation, bottom separating device, upwards spray into high-temperature high-pressure steam, and water vapor is mixed with mist of oil, mixing time is 40 minutes, and obtains lipid acid and water vapor mixed steam, when water vapour mixes with mist of oil, temperature in separation vessel is 250 DEG C, and air pressure is 0.03MPa;
4th step, add collection agent, while water vapor mixes with mist of oil, add in water vapor and mist of oil mixed gas and enter collection agent, and make collection agent and water vapor and mist of oil Homogeneous phase mixing, wherein collection agent total amount is 1/4 of water vapor and mist of oil total amount;
5th step, condensation separation lipid acid, by through the water vapour that mix with mist of oil, collection agent by negative pressure from separation vessel Base top contact, and be incorporated in condensing works and cool, the oil plant be left is incorporated in refining and deodorizing tower;
6th step, second-heating, remaining oil plant, entering before in refining and deodorizing tower, carries out second-heating by heating unit to it, and after heating, the temperature of oil plant is 250 DEG C, then enters into refining and deodorizing tower;
7th step, refinery process, oil plant enters into after in refining and deodorizing tower, utilizes refining and deodorizing tower to carry out refining, deodorization, depickling, decolorization operations to oil plant, and finally obtains processed oil.
In the present embodiment, in the 3rd described step, steam temperature is 200 DEG C, and pressure is not less than 3 times of standard atmospheric pressures.
In the present embodiment, in the 3rd described step, when carrying out water vapour and mixing with rough grease, separately at the uniform velocity mix auxiliary stirring by whipping appts.
In the present embodiment, described water vapour was filtered by one-level inorganic salt molecule and oxygen molecule before being incorporated in separation vessel;
In the present embodiment, pass through the water vapour mixed with mist of oil, collection agent in the 5th described step before entering condensing works, first carry out cascade filtration through filtration unit.
In the present embodiment, in the 6th described step, when carrying out refining to oil plant, in refining and deodorizing tower, pressure is 133Pa, and when carrying out deodorization, depickling, decolorization operations, in refining and deodorizing tower, pressure is 660Pa.
In the present embodiment, described water vapour and the mass ratio of mist of oil are 3:1.
Present invention process is simple, control accuracy is high and lower to processing conditional request, efficiently the lipid acid dissociated in grease can be removed on the one hand, the higher lipid acid of added value is obtained while improving oil quality, can effectively improve operation rate and resource utilization on the other hand, thus reach the effect reducing production cost.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (7)
1. for removing a method for grease free fatty acid, it is characterized in that: described comprises the steps: for the method removing grease free fatty acid
The first step, oil plant pre-treatment, the oil plant treating separation of free fatty acids carries out preheating and blower operations, is then input in separation vessel by the oil plant through preheating and supercharging;
Second step, once heats, and before the oil plant through preheating and supercharging enters into separation vessel, by heating unit, oil plant temperature is risen to 200 DEG C-270 DEG C, then in separation vessel;
3rd step, spray atomizing, utilize atomizer to be carried out spraying and being atomized from separation vessel top by the oil plant be incorporated in separation vessel, while oil plant carries out spray operation, bottom separating device, upwards spray into high-temperature high-pressure steam, and water vapor is mixed with mist of oil, mixing time is 20 minutes-60 minutes, and obtains lipid acid and water vapor mixed steam, when water vapour mixes with mist of oil, temperature in separation vessel is 240 DEG C-380 DEG C, and air pressure is 0.01-0.03MPa;
4th step, add collection agent, while water vapor mixes with mist of oil, add in water vapor and mist of oil mixed gas and enter collection agent, and make collection agent and water vapor and mist of oil Homogeneous phase mixing, wherein collection agent total amount is not more than 1/4 of water vapor and mist of oil total amount;
5th step, condensation separation lipid acid, by through the water vapour that mix with mist of oil, collection agent by negative pressure from separation vessel Base top contact, and be incorporated in condensing works and cool, the oil plant be left is incorporated in refining and deodorizing tower;
6th step, second-heating, remaining oil plant, entering before in refining and deodorizing tower, carries out second-heating by heating unit to it, and after heating, the temperature of oil plant is 250 DEG C-300 DEG C, then enters into refining and deodorizing tower;
7th step, refinery process, oil plant enters into after in refining and deodorizing tower, utilizes refining and deodorizing tower to carry out refining, deodorization, depickling, decolorization operations to oil plant, and finally obtains processed oil.
2. a kind of method for removing grease free fatty acid according to claim 1, is characterized in that: in the 3rd described step, steam temperature is not less than 150 DEG C, and pressure is not less than 1 times of standard atmospheric pressure.
3. a kind of method for removing grease free fatty acid according to claim 1, is characterized in that: in the 3rd described step, when carrying out water vapour and mixing with rough grease, separately at the uniform velocity mixes auxiliary stirring by whipping appts.
4. a kind of method for removing grease free fatty acid according to claim 1, is characterized in that: described water vapour passed through inorganic salt molecule and oxygen molecule at least one times and filters before being incorporated in separation vessel.
5. a kind of method for removing grease free fatty acid according to claim 1, it is characterized in that, pass through the water vapour mixed with mist of oil, collection agent in the 5th described step before entering condensing works, first carry out at least one deck through filtration unit and filter.
6. a kind of method for removing grease free fatty acid according to claim 1, it is characterized in that, in the 6th described step, when carrying out refining to oil plant, in refining and deodorizing tower, pressure is not more than 133Pa, when carrying out deodorization, depickling, decolorization operations, in refining and deodorizing tower, pressure is not more than 660Pa.
7. a kind of method for removing grease free fatty acid according to claim 1, is characterized in that, described water vapour and the mass ratio of mist of oil are at least 3:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510920829.8A CN105542949A (en) | 2015-12-14 | 2015-12-14 | Method for removing free fatty acid in grease |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510920829.8A CN105542949A (en) | 2015-12-14 | 2015-12-14 | Method for removing free fatty acid in grease |
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| Publication Number | Publication Date |
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| CN105542949A true CN105542949A (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510920829.8A Pending CN105542949A (en) | 2015-12-14 | 2015-12-14 | Method for removing free fatty acid in grease |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105950288A (en) * | 2016-06-23 | 2016-09-21 | 劲旺粮油食品有限公司 | Mixed fatty acid separation and deacidification/deodorization method |
| CN107641556A (en) * | 2017-09-28 | 2018-01-30 | 山东巧妻食品科技有限公司 | A kind of cottonseed oil continuous alkali-refining deacidification method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280242A (en) * | 2008-06-02 | 2008-10-08 | 中国科学院过程工程研究所 | Method for separating aliphatic acid in lipid |
| CN101619274A (en) * | 2009-05-22 | 2010-01-06 | 澧县群星化工有限责任公司 | High-tower low-level fatty acid separating system |
| CN202865204U (en) * | 2012-10-11 | 2013-04-10 | 嘉里油脂化学工业（天津）有限公司 | Vapor recycling device for fatty acid workshop |
| CN103740463A (en) * | 2014-01-10 | 2014-04-23 | 陈汉卿 | Grease deacidification equipment and deacidification method |
| CN104762131A (en) * | 2015-03-19 | 2015-07-08 | 华南理工大学 | Deodorizing method for inhibiting generation of glycidyl ester in oil |
-
2015
- 2015-12-14 CN CN201510920829.8A patent/CN105542949A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101280242A (en) * | 2008-06-02 | 2008-10-08 | 中国科学院过程工程研究所 | Method for separating aliphatic acid in lipid |
| CN101619274A (en) * | 2009-05-22 | 2010-01-06 | 澧县群星化工有限责任公司 | High-tower low-level fatty acid separating system |
| CN202865204U (en) * | 2012-10-11 | 2013-04-10 | 嘉里油脂化学工业（天津）有限公司 | Vapor recycling device for fatty acid workshop |
| CN103740463A (en) * | 2014-01-10 | 2014-04-23 | 陈汉卿 | Grease deacidification equipment and deacidification method |
| CN104762131A (en) * | 2015-03-19 | 2015-07-08 | 华南理工大学 | Deodorizing method for inhibiting generation of glycidyl ester in oil |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105950288A (en) * | 2016-06-23 | 2016-09-21 | 劲旺粮油食品有限公司 | Mixed fatty acid separation and deacidification/deodorization method |
| CN107641556A (en) * | 2017-09-28 | 2018-01-30 | 山东巧妻食品科技有限公司 | A kind of cottonseed oil continuous alkali-refining deacidification method |
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