CN101058527A - Concentration of glycerol - Google Patents
Concentration of glycerol Download PDFInfo
- Publication number
- CN101058527A CN101058527A CN 200710023036 CN200710023036A CN101058527A CN 101058527 A CN101058527 A CN 101058527A CN 200710023036 CN200710023036 CN 200710023036 CN 200710023036 A CN200710023036 A CN 200710023036A CN 101058527 A CN101058527 A CN 101058527A
- Authority
- CN
- China
- Prior art keywords
- glycerine
- glycerol
- raw
- biodiesel
- subjected
- 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
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000006227 byproduct Substances 0.000 claims abstract description 3
- 238000007872 degassing Methods 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 235000011187 glycerol Nutrition 0.000 claims description 17
- 238000004821 distillation Methods 0.000 claims description 6
- 239000002551 biofuel Substances 0.000 claims description 4
- 230000001877 deodorizing effect Effects 0.000 claims description 2
- 239000012467 final product Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000003225 biodiesel Substances 0.000 abstract description 3
- 208000005156 Dehydration Diseases 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 238000004332 deodorization Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention provides a glycerol concentration method, which is characterized in that crude glycerol obtained by purifying a byproduct generated by biodiesel is used as a raw material, the crude glycerol is subjected to degassing and dehydration treatment and then is distilled in a vacuum evaporator with the temperature of 160-180 ℃ of 2-4 KPa, and then is subjected to deodorization and decoloration, so that the purity of the concentrated glycerol reaches 99.5%, the glycerol can be applied to various fields, has high economic value and is beneficial to the preparation cost of the hedging biodiesel.
Description
Technical field
The present invention relates to a kind of biodiesel technology, especially the concentration technique of glycerine.
Background technology
The raw glycerine that present biofuel obtains is content about 80% substantially, and wherein impurity mainly contains sodium-chlor about 8%, 1～2% sodium sulphate, 1.5～3% organic impurity (most of be soap), about 7% moisture and the impurity of less volatile.
And need higher concentration in the application of glycerine.
Summary of the invention
The invention provides a kind of glycerine concentration technique of economy.
For achieving the above object, technical scheme of the present invention is:
A kind of concentration method of glycerine, the raw glycerine that the byproduct purification that is produced by biofuel obtains is done raw material, it is characterized in that raw glycerine distills after the processed through the degassing in the vacuum-evaporator of 160～180 degrees centigrade of 2～4Kpa, and then deodorizing, decolouring get final product.
The glycerine purity that concentrates out like this can be used multiple field up to 99.5%, and very high economic worth is arranged, the cost of producing of the biofuel that helps liquidating.
Embodiment
In concrete the enforcement, the alkalinity that raw glycerine at first will be adjusted before distillation wherein reaches total alkalinity in 0.07～0.12% scope, so that in still-process the form of lipid acid with soap is fixed up, do not allow them evaporate in the smart glycerine and goes.Avoid alkalescence overweight simultaneously, when distillation, produce a large amount of foams and promote glycerol polymerization and decomposition, and lose a large amount of glycerine.
When distillation, can also select water vapor to carry out liquid and stir the raising distillation efficiency.
Claims (3)
1. the concentration method of a glycerine, the raw glycerine that the byproduct purification that is produced by biofuel obtains is done raw material, it is characterized in that raw glycerine distills after the processed through the degassing in the vacuum-evaporator of 160～180 degrees centigrade of 2～4Kpa, and then deodorizing, decolouring get final product.
2. according to claim 1, it is characterized in that the alkalinity that raw glycerine at first will be adjusted wherein reaches total alkalinity in 0.07～0.12% scope before distillation.
3. according to claim 1, it is characterized in that selecting water vapor to carry out liquid and stir the raising distillation efficiency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710023036 CN101058527A (en) | 2007-05-30 | 2007-05-30 | Concentration of glycerol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710023036 CN101058527A (en) | 2007-05-30 | 2007-05-30 | Concentration of glycerol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101058527A true CN101058527A (en) | 2007-10-24 |
Family
ID=38864853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710023036 Pending CN101058527A (en) | 2007-05-30 | 2007-05-30 | Concentration of glycerol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101058527A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267874A (en) * | 2011-06-22 | 2011-12-07 | 南通市康桥油脂有限公司 | Production process for glycerol by virtue of continuous rectification |
| TWI485127B (en) * | 2007-12-17 | 2015-05-21 | Solvay | Glycerol-based product, process for obtaining same and use thereof in the manufacture of dichloropropanol |
| CN105085171A (en) * | 2015-04-16 | 2015-11-25 | 彭才文 | High purity glycerin refining method by using saponification hydrolysis esterification byproduct |
| US9309209B2 (en) | 2010-09-30 | 2016-04-12 | Solvay Sa | Derivative of epichlorohydrin of natural origin |
-
2007
- 2007-05-30 CN CN 200710023036 patent/CN101058527A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI485127B (en) * | 2007-12-17 | 2015-05-21 | Solvay | Glycerol-based product, process for obtaining same and use thereof in the manufacture of dichloropropanol |
| US9309209B2 (en) | 2010-09-30 | 2016-04-12 | Solvay Sa | Derivative of epichlorohydrin of natural origin |
| CN102267874A (en) * | 2011-06-22 | 2011-12-07 | 南通市康桥油脂有限公司 | Production process for glycerol by virtue of continuous rectification |
| CN105085171A (en) * | 2015-04-16 | 2015-11-25 | 彭才文 | High purity glycerin refining method by using saponification hydrolysis esterification byproduct |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20071024 |