CN106753782A - A kind of method of utilization air lift taste removal biodiesel - Google Patents
A kind of method of utilization air lift taste removal biodiesel Download PDFInfo
- Publication number
- CN106753782A CN106753782A CN201611054028.9A CN201611054028A CN106753782A CN 106753782 A CN106753782 A CN 106753782A CN 201611054028 A CN201611054028 A CN 201611054028A CN 106753782 A CN106753782 A CN 106753782A
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- China
- Prior art keywords
- methyl ester
- fatty acid
- acid methyl
- nitrogen
- air lift
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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
- C11B3/12—Refining fats or fatty oils by distillation
- C11B3/14—Refining fats or fatty oils by distillation with the use of indifferent gases or vapours, e.g. steam
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The present invention relates to biodiesel deodorization technology field, a kind of method of utilization air lift taste removal biodiesel is specifically disclosed, in there be the fatty acid methyl ester of acid smell to pump into heater, while to nitrogen is passed through in heater, temperature control is at 145 DEG C；Material after heated device treatment enters deodorizing tower, while to nitrogen is passed through in deodorizing tower, starting level Four vacuum nitrogen jet pump system, will be vacuumized in deodorizing tower, and it is 200Pa to control vacuum；Fatty acid methyl ester after above-mentioned treatment is pumped into stripping tower, the air lift in stripping tower, removal low-carbon (LC) connects impurity, smell；Tasteless fatty acid methyl ester is obtained after eventually passing filter filtering.It is an advantage of the invention that obtaining the tasteless fatty acid methyl ester of high-quality by air lift taste removal operation, make downstream product and allotment diesel oil because of the odorous of raw material product will not be caused odorous, and water content is lower, acid number is lower.
Description
Technical field
The present invention relates to biodiesel deodorization technology field, a kind of side of utilization air lift taste removal biodiesel is particularly related to
Method.
Background technology
The Main Ingredients and Appearance of biodiesel is fatty acid methyl ester, and natural fatty acid methyl ester is carried out by adding some additives
It is referred to as blended diesel after mediation.Because the general smell of the fatty acid methyl ester of in the market is heavier, cause downstream product and with
Blended diesel after mineral diesel allotment, it is also odorous, so need to carry out fatty acid methyl ester (biodiesel) de- taste treatment,
Become tasteless fatty acid methyl ester (biodiesel), it is to avoid smell is impacted to downstream product, blended diesel, if with discarded
When accessory substance, discarded object during grease and vegetable oil refining etc. are that raw material prepares biodiesel, obtained biodiesel is held
Easily there is unpleasant stink, influence the use of biodiesel.Repeat to mix to remove biological bavin by water and oil in the prior art
The stink of oil, this method is primarily present problems with：1. due to enter destilling tower thick methyl esters it is aqueous it is higher (0.5%~
1%), cause part back reaction (water is reduced into methyl alcohol and aliphatic acid with fatty acid methyl ester reaction) in destilling tower, distill out
Biodiesel finished product acid number it is (2~4mgKOH/g) higher；When 2. due to distillation, cool down collection entirely with overhead and given birth to
Thing diesel oil, causes biodiesel finished product still to have slight stink.
The content of the invention
The present invention is intended to provide a kind of method of utilization air lift taste removal biodiesel, the biology for obtaining is processed by air- extraction
Diesel oil acid number is lower, and moisture is lower, thoroughly eliminates stink, and performance is more excellent.
To achieve these goals, present invention employs following technical scheme：One kind utilizes air lift taste removal biodiesel
Method, comprise the steps of：
1) in thering is the fatty acid methyl ester of acid smell to pump into heater, while to being passed through nitrogen, temperature control in heater
At 140~145 DEG C；
2) material after heated device treatment enters deodorizing tower, while to nitrogen is passed through in deodorizing tower, starting level Four vacuum
Nitrogen jet pumping system, will vacuumize in deodorizing tower, and it is 180~200Pa to control vacuum；
3) fatty acid methyl ester after above-mentioned treatment is pumped into stripping tower, the air lift in stripping tower, removal low-carbon (LC) connects impurity, gas
Taste；
4) tasteless fatty acid methyl ester is obtained after eventually passing filter filtering.
Wherein, the deodorizing tower is provided with multiple nitrogen inlets, and heated fatty acid methyl ester is fully contacted with nitrogen, and
Material containing stink in fatty acid methyl ester is taken away.
Wherein, it is 1.0MPa to the nitrogen pressure being passed through in deodorizing tower.
Wherein, the filter is polishing bag filter.
The beneficial effects of the present invention are：The tasteless fatty acid methyl ester of high-quality is obtained by air lift taste removal operation, is made
Downstream product and allotment diesel oil will not cause product odorous because of the odorous of raw material, and water content is low, and acid number is low.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1
A kind of method of utilization air lift taste removal biodiesel, comprises the steps of：
1) in thering is the fatty acid methyl ester of acid smell to pump into heater, while to being passed through nitrogen, temperature control in heater
At 140 DEG C；
2) material after heated device treatment enters deodorizing tower, while to nitrogen is passed through in deodorizing tower, starting level Four vacuum
Nitrogen jet pumping system, will vacuumize in deodorizing tower, and it is 180Pa to control vacuum；
3) fatty acid methyl ester after above-mentioned treatment is pumped into stripping tower, the air lift in stripping tower, removal low-carbon (LC) connects impurity, gas
Taste, further increases product quality；
4) tasteless fatty acid methyl ester is obtained after eventually passing filter filtering.
Embodiment 2
A kind of method of utilization air lift taste removal biodiesel, comprises the steps of：
1) in thering is the fatty acid methyl ester of acid smell to pump into heater, while to being passed through nitrogen, temperature control in heater
At 145 DEG C；
2) material after heated device treatment enters deodorizing tower, while to nitrogen is passed through in deodorizing tower, starting level Four vacuum
Nitrogen jet pumping system, will vacuumize in deodorizing tower, and it is 200Pa to control vacuum；
3) fatty acid methyl ester after above-mentioned treatment is pumped into stripping tower, the air lift in stripping tower, removal low-carbon (LC) connects impurity, gas
Taste, further increases product quality；
4) tasteless fatty acid methyl ester is obtained after eventually passing filter filtering.
The deodorizing tower is provided with multiple nitrogen inlets, and nitrogen enters from multiple entrances of deodorizing tower so that fatty acid methyl
Ester is fully contacted with nitrogen, and the material containing stink in biodiesel is taken away.
It is 1.0MPa to the nitrogen pressure being passed through in deodorizing tower.
The filter is polishing bag filter so that the transparency of product is higher.
Level Four vacuum nitrogen jet pump system is the vavuum pump using the pumping of water nitrogen jet current, fast with starting, work pressure
Power wide ranges, rate of air sucked in required is big, can be directly discharged into air, and simple structure is reliable because of without motion component, and validity period is long to wait special
Point.
The fatty acid methyl ester (biodiesel) of mistake treated by the present method and commercial sources of fatty acids methyl esters (biodiesel) index pair
Than：
| Inspection project | Condition name | Commercially available biodiesel | The biodiesel of air lift taste removal |
| Density | The DEG C ﹚ g/cm3 of ﹙ 20 | 0.88 | 0.88 |
| Moisture and volatile matter content | (%) | 0.08 | 0.05 |
| Smell | (%) | Substantially | Nothing |
| Insoluble impurities | (%) | ＜ 0.05 | ＜ 0.05 |
| Transparency | -- | It is transparent | It is limpid, it is brighter |
| Acid number | mgKOH/g | 0.36 | 0.38 |
| Flash-point (is remained silent) | ℃ | 123 | 124 |
| Condensation point | ℃ | 4.5 | 4.5 |
Each performance indications that will become apparent from the biodiesel that the method is obtained by form substantially meet commercially available biodiesel
Technical requirements, and performance is more excellent.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (4)
1. a kind of method of utilization air lift taste removal biodiesel, it is characterised in that comprise the steps of：
In thering is the fatty acid methyl ester of acid smell to pump into heater, while to being passed through nitrogen in heater, temperature control 140 ~
145℃；
Material after heated device treatment enters deodorizing tower, while to nitrogen is passed through in deodorizing tower, starting the spray of level Four vacuum nitrogen
Pumping system is penetrated, will be vacuumized in deodorizing tower, it is 180 ~ 200Pa to control vacuum；
Fatty acid methyl ester after above-mentioned treatment is pumped into stripping tower, the air lift in stripping tower, removal low-carbon (LC) connects impurity, smell；
Tasteless fatty acid methyl ester is obtained after eventually passing filter filtering.
2. a kind of method of utilization air lift taste removal biodiesel according to claim 1, it is characterised in that on the deodorizing tower
Multiple nitrogen inlets are provided with, heated fatty acid methyl ester is fully contacted with nitrogen, and the thing of stink will be contained in fatty acid methyl ester
Matter is taken away.
3. a kind of method of utilization air lift taste removal biodiesel according to claim 1, it is characterised in that lead to in deodorizing tower
The nitrogen pressure for entering is 1.0MPa.
4. a kind of method of utilization air lift taste removal biodiesel according to claim 1, it is characterised in that the filter is
Polishing bag filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611054028.9A CN106753782A (en) | 2016-11-25 | 2016-11-25 | A kind of method of utilization air lift taste removal biodiesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611054028.9A CN106753782A (en) | 2016-11-25 | 2016-11-25 | A kind of method of utilization air lift taste removal biodiesel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106753782A true CN106753782A (en) | 2017-05-31 |
Family
ID=58911336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611054028.9A Pending CN106753782A (en) | 2016-11-25 | 2016-11-25 | A kind of method of utilization air lift taste removal biodiesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106753782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114214121A (en) * | 2021-12-14 | 2022-03-22 | 浙江东江能源科技有限公司 | High-quality low-sulfur-content biodiesel preparation device and preparation method |
-
2016
- 2016-11-25 CN CN201611054028.9A patent/CN106753782A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114214121A (en) * | 2021-12-14 | 2022-03-22 | 浙江东江能源科技有限公司 | High-quality low-sulfur-content biodiesel preparation device and preparation method |
| CN114214121B (en) * | 2021-12-14 | 2024-02-20 | 浙江东江能源科技有限公司 | Preparation device and preparation method of high-quality low-sulfur biodiesel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |