CN101020859A - Application of oil and fat flash vaporizing dewatering technique in biodiesel oil production - Google Patents
Application of oil and fat flash vaporizing dewatering technique in biodiesel oil production Download PDFInfo
- Publication number
- CN101020859A CN101020859A CNA2007100540654A CN200710054065A CN101020859A CN 101020859 A CN101020859 A CN 101020859A CN A2007100540654 A CNA2007100540654 A CN A2007100540654A CN 200710054065 A CN200710054065 A CN 200710054065A CN 101020859 A CN101020859 A CN 101020859A
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- CN
- China
- Prior art keywords
- grease
- flash
- dewatering
- biodiesel
- application
- 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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- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Fats And Perfumes (AREA)
Abstract
The present invention is application of grease flash evaporation dewatering technique in biodiesel oil production. The technological process includes normal pressure dewatering of refined grease in a dewatering kettle to eliminate surface water, flash evaporation dewatering to eliminating most of the water in a flash evaporation dewatering kettle with heating jacket steam heated to 125 deg.c, and storing the dewatered grease in a storage tank. The present invention has simple technological process, capacity of reaching water content in grease below 0.2 %, great reaction speed and raised quality of biodiesel oil.
Description
One, technical field
The present invention relates to one technology in a kind of production of biodiesel, specifically greasy dewatering process in the production of biodiesel.
Two, background technology
In production of biodiesel, how many direct pre-esterification reflections of influence and transesterification reaction degree of carrying out of water content in the grease.In general, water content was at 0.2% o'clock in the grease, and the esterification rate is 99%, and the glycerol conversion yield of tri-glyceride in the transesterification reaction (neutral oil) is 99%; And water content was at 1% o'clock in the grease, and pre-esterification reactor and transesterification reaction rate are 94%.In the present production of biodiesel both domestic and external, transformation efficiency is between the 85-95%, to be that water content is too high in the grease cause major cause, especially the existence of reaction water in the pre-esterification reactor, reversed reaction is accelerated, it is not thorough that pre-esterification reactor is carried out, and influenced the quality of biofuel so greatly.But also there is not better technology to make lower that water content falls in the grease at present.
Three, summary of the invention
The technical problem to be solved in the present invention is: provide a kind of in production of biodiesel greasy dewatering process, adopt this dewatering process that the moisture content in the grease is dropped to below 0.2%.
The technical scheme that solution the technology of the present invention problem is taked is: the polished fat of will not dewater squeezes into normal pressure dehydration still earlier, open fire in the grease is removed, then with the grease after the normal pressure dehydration (general moisture about 6%), draw in the flash-evaporation dehydration still with vacuum, feed the steam of heat in the flash-evaporation dehydration still heating jacket, heating jacket wall working temperature is 125 ℃, grease slides from flash-evaporation dehydration still top along the heating jacket wall, most of moisture content is sloughed, and the grease after the dehydration enters for esterification or transesterify grease storage tank.
Positively effect of the present invention is: technology is simple, the water content in the grease can be controlled at below 0.2%, has improved the quality of speed of response and biofuel greatly.
Four, embodiment
Technology of the present invention mainly is to utilize water to vaporize in the time of 100 ℃, and grease unvaporized principle in the time of 100 ℃, the polished fat of will not dewater squeezes into normal pressure dehydration still earlier, open fire in the grease is removed, then with the grease after the normal pressure dehydration (general moisture about 6%), draw in the flash-evaporation dehydration still with vacuum, the flash-evaporation dehydration still adopts inventor's flash distillation still invention and patent applied for, vacuum tightness is the 50mm mercury column in the flash-evaporation dehydration still, feed hot steam in the flash-evaporation dehydration still heating jacket, vapor pressure is 6kg/cm
2, heating jacket wall working temperature is 125 ℃, and grease slides from flash-evaporation dehydration still top along the heating jacket wall, and in the moment that grease slides, the most of moisture content in the grease is vaporized to be sloughed, and the grease after the dehydration enters the grease storage tank that supplies esterification or transesterify to use.
Claims (2)
1, the application of fat flash vaporizing dewatering technique in production of biodiesel, it is characterized in that: the polished fat of will not dewater squeezes into normal pressure dehydration still earlier, open fire in the grease is removed, then with the moisture grease about 6% in normal pressure dehydration back, draw in the flash-evaporation dehydration still with vacuum, feed hot steam in the flash-evaporation dehydration still heating jacket, heating jacket wall working temperature is 125 ℃, grease slides from flash-evaporation dehydration still top along the heating jacket wall, most of moisture content is sloughed, and the grease after the dehydration enters the grease storage tank that supplies esterification or transesterify to use.
2, the application of fat flash vaporizing dewatering technique according to claim 1 in production of biodiesel is characterized in that: the vacuum tightness in the flash-evaporation dehydration still is the 50mm mercury column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100540654A CN100572513C (en) | 2007-03-16 | 2007-03-16 | The application of fat flash vaporizing dewatering technique in production of biodiesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100540654A CN100572513C (en) | 2007-03-16 | 2007-03-16 | The application of fat flash vaporizing dewatering technique in production of biodiesel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101020859A true CN101020859A (en) | 2007-08-22 |
| CN100572513C CN100572513C (en) | 2009-12-23 |
Family
ID=38708736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100540654A Expired - Fee Related CN100572513C (en) | 2007-03-16 | 2007-03-16 | The application of fat flash vaporizing dewatering technique in production of biodiesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100572513C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382716A (en) * | 2010-09-03 | 2012-03-21 | 陕西渭力生物能源有限公司 | Method and equipment for preparing biodiesel with high-acid-value waste oil |
| CN103045286A (en) * | 2011-10-17 | 2013-04-17 | 李芝玲 | Process method for removing water from diesel or jet fuel by using compound function vacuum tower |
-
2007
- 2007-03-16 CN CNB2007100540654A patent/CN100572513C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382716A (en) * | 2010-09-03 | 2012-03-21 | 陕西渭力生物能源有限公司 | Method and equipment for preparing biodiesel with high-acid-value waste oil |
| CN103045286A (en) * | 2011-10-17 | 2013-04-17 | 李芝玲 | Process method for removing water from diesel or jet fuel by using compound function vacuum tower |
| CN103045286B (en) * | 2011-10-17 | 2015-12-09 | 李芝玲 | Complex function list tower diesel oil or rocket engine fuel vacuum dewatering technique method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100572513C (en) | 2009-12-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20130316 |