CN1903988A - Preparation method of biological diesel oil - Google Patents
Preparation method of biological diesel oil Download PDFInfo
- Publication number
- CN1903988A CN1903988A CNA2006101094105A CN200610109410A CN1903988A CN 1903988 A CN1903988 A CN 1903988A CN A2006101094105 A CNA2006101094105 A CN A2006101094105A CN 200610109410 A CN200610109410 A CN 200610109410A CN 1903988 A CN1903988 A CN 1903988A
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- China
- Prior art keywords
- biofuel
- oil
- under
- formicester
- preparation
- Prior art date
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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
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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
- 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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- Fats And Perfumes (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
The present invention discloses a preparation method of biological diesel oil. It uses acidified plant oil as raw material and adopts the following steps: after the acidified plant oil is esterified, under the vacuum condition distilling off methyl ester, in the process of distilling methyl ester adding proper quantity of additive oxalic acid to prevent methyl ester from further producing polymerization reaction and can raise yield of methyl ester, after the esterification cooling distillate to-10 deg.C, filtering and removing precipitate so as to obtain liquid fuel methyl ester (namely biological diesel oil).
Description
Technical field:
The present invention relates to a kind of biofuel, especially a kind of acidifying plant oil, city of animal or plant nature waste grease are the feedstock production method of bio-diesel oil.
Technical background:
More than 2500 families of the existing vegetables oil source mill of China, annual hydrated oil foot-acidifying oil is more than 1,000,000 tons.City of animal or plant nature abendoned oil, Beijing will produce more than 70 tons every day, utilizes these waste oil to do raw material, substitutes fossil diesel oil through chemical fat method production biofuel and has great significance.The invention of units such as Chinese University of Science and Technology.
Fat plant oil fuel production method, yield is lower, the performance of gained fuel formicester does not reach the GB of-No. 10 diesel oil.
Summary of the invention:
The objective of the invention is: provide a kind of technology simple, the production technique that cost is low, he has solved the low technical barrier of prior art yield.
Technical scheme of the present invention is:
Application acidifying plant oil, urban waste vegetable and animals oils are raw material, through remove formicester after the fatization under vacuum condition, add an amount of additive oxalic acid in the formicester still-process, have improved the yield of formicester.
Technological process is as follows:
In the fat pot, raw material acid carburetion fat and the excessive industrial methanol that contains more than 95%, under the katalysis of the vitriol oil, under the normal pressure with steam heating and maintain 60 ℃-70 ℃, back flow reaction 3-6 hour, its add-on is: raw oil material: methyl alcohol: the vitriol oil=1000: (500-900): 10, after back flow reaction finishes, steaming removes unnecessary methanol steam and sends into recovery in the absorption tower, clout (thick formicester) is got rid of sour water after leaving standstill two hours, washing adds 2 ‰ additive oxalic acid after dehydration tower dewaters again, pumps into still kettle after stirring, liquidus temperature is controlled at 220 ℃-280 ℃ in the still kettle, vacuum tightness is distilled under 0.9 condition, steams thing and is about 90%-97%, and main component is mixed fatty acid formicester and a small amount of unreacted lipid acid; Overhead product is arrived-10 ℃ at the cooling tower internal cooling, filter out the solid of being separated out under this temperature, gained liquid is biofuel-No. 10.
Advantage of the present invention is:
1, production technique is simple, and cost is low, and is pollution-free, the yield height.
2, safe and reliable: adopt technology of the present invention, by producing 5000 tons Chinese style test per year, its use properties is good, fully can alternative ore diesel oil.
The present invention will be further described below in conjunction with embodiment:
Embodiment:
1, with 1000 kilograms of acidifying plant oil, 650 kilograms of the industrial methanol of purity more than 95%, 10 kilograms of the vitriol oils, add in the fat pot, maintain 60 ℃-70 ℃ with steam heating under the normal pressure, back flow reaction 3-6 hour, leave standstill after back flow reaction finishes and got rid of sour water in two hours, washing is dewatered through dehydration tower again, methanol steam reclaims in the methyl alcohol absorption tower, after the dehydration 971 kilograms of thick formicesters, adds and pumps into still kettle after 1 kilogram of oxalic acid stirs, the interior liquidus temperature of still kettle is controlled at 220 ℃-280 ℃, vacuum tightness is distilled under 0.9 condition, can get 862 kilograms of overhead products; To steam thing and arrive-10 ℃, under this temperature, filter the solid of separating out, 850 kilograms of gained fuel formicesters (being biofuel) at the cooling tower internal cooling.
Claims (3)
1, a kind of preparation method of biofuel: with acidifying plant oil, urban waste vegetable and animals oils, the frying oil of recovery are raw material, after methyl alcohol fatization, steaming removes formicester and is biofuel under vacuum condition, it is characterized in that adding in vacuum distilling additive oxalic acid.
2, according to claim 1: the preparation method of biofuel, it is characterized in that the above-mentioned formicester that distills out is cooled to-10 ℃, and under this temperature, filter and remove the solid of being separated out, the liquid that is left is biofuel.
3, according to claim 1: the preparation method of biofuel, it is characterized in that will be in the fat pot raw material acid carburetion fat and the excessive industrial methanol that contains more than 95%, under the catalysis of the vitriol oil, normal pressure is with steam heating and maintain 60 ℃-70 ℃, its add-on was in back flow reaction 3-6 hour: raw oil material: methyl alcohol: the vitriol oil=1000: (500-900): 10, after back flow reaction finishes, steaming removes unnecessary methanol steam and sends into recovery in the absorption tower, clout (thick formicester) is got rid of sour water after leaving standstill two hours, washing is after the dehydration tower dehydration again, add 2 ‰ additive oxalic acid, pump into still kettle after stirring, liquidus temperature is controlled at 220 ℃-280 ℃ in the still kettle, and vacuum tightness is distilled under 0.9 condition, steam thing and be about 90%-97%, main component is mixed fatty acid formicester and a small amount of unreacted lipid acid; Overhead product is arrived-10 ℃ at the cooling tower internal cooling, filter out the solid of being separated out under this temperature, gained liquid is biofuel-No. 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101094105A CN1903988A (en) | 2006-08-14 | 2006-08-14 | Preparation method of biological diesel oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101094105A CN1903988A (en) | 2006-08-14 | 2006-08-14 | Preparation method of biological diesel oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1903988A true CN1903988A (en) | 2007-01-31 |
Family
ID=37673356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101094105A Pending CN1903988A (en) | 2006-08-14 | 2006-08-14 | Preparation method of biological diesel oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1903988A (en) |
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2006
- 2006-08-14 CN CNA2006101094105A patent/CN1903988A/en active Pending
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication |