CN106221906A - A kind of process for purification of biodiesel coarse product - Google Patents
A kind of process for purification of biodiesel coarse product Download PDFInfo
- Publication number
- CN106221906A CN106221906A CN201610789337.4A CN201610789337A CN106221906A CN 106221906 A CN106221906 A CN 106221906A CN 201610789337 A CN201610789337 A CN 201610789337A CN 106221906 A CN106221906 A CN 106221906A
- Authority
- CN
- China
- Prior art keywords
- biodiesel
- coarse product
- biodiesel coarse
- purification
- distillation
- 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.)
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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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Wood Science & Technology (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Fats And Perfumes (AREA)
Abstract
The present invention relates to field of biodiesel oil, be specifically related to the process for purification of a kind of biodiesel coarse product, biodiesel coarse product carries out low-carbon alcohols distillation, by the monohydric alcohol in biodiesel coarse product, glycerol and light Component seperation, obtains thick ester, and thick ester is washed；Biodiesel coarse product after washing distills again, and the tower overhead gas obtained by tower top condensation is obtained biodiesel；The mixture of biodiesel and heavy grease carries out flash distillation, and the condition of described flash distillation makes biodiesel obtain refining biodiesel from the overhead extraction of flash column.The process for purification of a kind of biodiesel coarse product that the present invention provides, effectively remove the light component in described biodiesel coarse product and active component in biodiesel coarse product can be made fully to be reclaimed and utilize, it is effectively improved the productivity of biodiesel, quality, and the pollution of the consumption of the energy, environment can be reduced.
Description
Technical field
The present invention relates to field of biodiesel oil, be specifically related to the process for purification of a kind of biodiesel coarse product.
Background technology
Biodiesel (Biodiesel) is the one of biomass energy, refers to oil crop, Wild oil plant and engineering
The water plant oils and fatss such as microalgae and the material containing chain fatty acid triglycerides such as animal oil, food garbage oil are as former
Material oil, by the mono alkyl ester of the long-chain fatty acid that ester-interchange method is made, can be used for substituting the recyclability of petrifaction diesel
Diesel fuel.
In the technique of existing industrialized production biodiesel, the biodiesel coarse product that employing ester-interchange method obtains removes
Outside containing biodiesel, possibly together with heavy grease.Owing to heavy grease combustibility is poor, need by biodiesel coarse is produced
Refined separation biodiesel and the heavy grease of making a return journey of product.
Owing to the boiling range of heavy grease is apparently higher than the boiling range of biodiesel, therefore in prior art, separate biodiesel
Mainly carry out by the way of distillation with the method for heavy grease, i.e. obtain the gas containing gas phase biodiesel by distillation
Body, then condenses this gas to obtaining biodiesel liquid.But, testing result shows, carbon residue content in this biodiesel
Higher, reach 0.5-1.0 weight %.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, it is provided that the process for purification of a kind of biodiesel coarse product, can be the most de-
Except the light component in described biodiesel coarse product and can make active component in biodiesel coarse product fully reclaimed and
Utilize, be effectively improved the productivity of biodiesel, quality, and the pollution of the consumption of the energy, environment can be reduced.
The technical solution adopted in the present invention is:
The process for purification of a kind of biodiesel coarse product, the method comprises the steps:
(1) described biodiesel coarse product is carried out low-carbon alcohols distillation, by the monohydric alcohol in biodiesel coarse product, glycerol
With light Component seperation, obtaining thick ester, thick ester is washed；
(2) biodiesel coarse product after washing distills again, and the tower overhead gas obtained by tower top condensation is given birth to
Thing diesel oil；
(3) biodiesel step (2) obtained and the mixture of heavy grease carry out flash distillation, and the condition of described flash distillation makes
Obtain biodiesel and obtain refining biodiesel from the overhead extraction of flash column.
The process for purification of a kind of biodiesel coarse product that the present invention provides, effectively removes in described biodiesel coarse product
Light component and active component in biodiesel coarse product can be made fully to be reclaimed and utilize, be effectively improved biodiesel
Productivity, quality, and the pollution of the consumption of the energy, environment can be reduced.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated, but the present invention is not limited only to these embodiments, not
On the premise of departing from present inventive concept, within any improvement made all falls within protection scope of the present invention.
The process for purification of a kind of biodiesel coarse product, the method comprises the steps:
(1) described biodiesel coarse product is carried out low-carbon alcohols distillation, by the monohydric alcohol in biodiesel coarse product, glycerol
With light Component seperation, obtaining thick ester, thick ester is washed；
(2) biodiesel coarse product after washing distills again, and the tower overhead gas obtained by tower top condensation is given birth to
Thing diesel oil；
(3) biodiesel step (2) obtained and the mixture of heavy grease carry out flash distillation, and the condition of described flash distillation makes
Obtain biodiesel and obtain refining biodiesel from the overhead extraction of flash column.
Claims (1)
1. the process for purification of a biodiesel coarse product, it is characterised in that the method comprises the steps:
(1) described biodiesel coarse product is carried out low-carbon alcohols distillation, by the monohydric alcohol in biodiesel coarse product, glycerol and light
Component seperation, obtains thick ester, and thick ester is washed；
(2) biodiesel coarse product after washing distills again, and the tower overhead gas obtained by tower top condensation is obtained biological bavin
Oil；
(3) biodiesel step (2) obtained and the mixture of heavy grease carry out flash distillation, and the condition of described flash distillation makes raw
Thing diesel oil obtains refining biodiesel from the overhead extraction of flash column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610789337.4A CN106221906A (en) | 2016-08-31 | 2016-08-31 | A kind of process for purification of biodiesel coarse product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610789337.4A CN106221906A (en) | 2016-08-31 | 2016-08-31 | A kind of process for purification of biodiesel coarse product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106221906A true CN106221906A (en) | 2016-12-14 |
Family
ID=58074319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610789337.4A Pending CN106221906A (en) | 2016-08-31 | 2016-08-31 | A kind of process for purification of biodiesel coarse product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106221906A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533438A (en) * | 2011-08-16 | 2012-07-04 | 中国海洋石油总公司 | Refining method for biodiesel coarse product |
-
2016
- 2016-08-31 CN CN201610789337.4A patent/CN106221906A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102533438A (en) * | 2011-08-16 | 2012-07-04 | 中国海洋石油总公司 | Refining method for biodiesel coarse product |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161214 |