CN1560197A - Process of preparing biologic diesel oil by swill oil - Google Patents
Process of preparing biologic diesel oil by swill oil Download PDFInfo
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- CN1560197A CN1560197A CNA2004100264114A CN200410026411A CN1560197A CN 1560197 A CN1560197 A CN 1560197A CN A2004100264114 A CNA2004100264114 A CN A2004100264114A CN 200410026411 A CN200410026411 A CN 200410026411A CN 1560197 A CN1560197 A CN 1560197A
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- hogwash fat
- diesel oil
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- oil
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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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Abstract
The invention relates to a method of preparing bio-diesel oil by swill oil, includes the following steps: (1) mixing the refined swill oil and a proper amount of methanol with a catalyst toluene sulfonic acid, stirring and gradually heating to 65 deg.C above, and fully reacting for not less than 6 hours; (2) placing the above reacting matters still for 1.5 hour above and stratifying and recombining, then filtering out the heavy components at the bottom layer, and evaporating out the residual methanol in vacuumizing. Because the swill oil includes a main component triglyceride, which makes ester exchange reaction with the methanol under the catalyst and heating, it obtains fatty acid methyl ester. The molecular weight, composition, freezing point, flash point and combustion value of the fatty acid methyl ester are equivalent to those of the petroleum and diesel oil, able to completely replace the petroleum and diesel oil, so called 'bio-diesel oil'.
Description
Technical field
The present invention relates to a kind of hogwash fat that utilizes and prepare method of bio-diesel oil.
Prior art
Hogwash fat is the aste vegetable oil and animal fat that comprises in the swill of catering trade discharging, bigger restaurant all has oil trap, waste water enters the outfall sewer net from the bottom in pond, the waste oil on top (being hogwash fat) has the special messenger to collect aftertreatment, owing to lack rational subsequent disposal means, the flow direction of hogwash fat is relatively chaotic, even has and sell the phenomenon of cooking edible oil toward diet stall, the health that has endangered the resident again.The existing method of utilizing method that hogwash fat prepares diesel oil to announce as No. 021134855 patent mainly is to mix afterwards as fuel diesel by suitable proportion with hogwash fat and solar oil, belongs to physical mixed, less than from changing the chemical property of hogwash fat in essence.Just burn jointly down, thereby saved a part of diesel oil, can not thoroughly break away from dependence fossil oil the combustion-supporting of solar oil.Mix prepared diesel oil with this physical method, because molecular weight is greatly different in size, flash-point, burning-point are asynchronous, and when being used for diesel engine, it is insufficient to burn.
Summary of the invention
The present invention will solve is that the existing biofuel molecular weight that utilizes hogwash fat to prepare to obtain in the method for bio-diesel oil is greatly different in size, flash-point, burning-point are asynchronous, when being used for diesel engine, and the inadequate technical problem of burning.
In order to solve above technical problem, the technical scheme that the present invention takes is:
A kind of hogwash fat that utilizes prepares method of bio-diesel oil, it is characterized in that, may further comprise the steps:
(1) refined hogwash fat, an amount of methyl alcohol are mixed the back with the catalyzer toluenesulphonic acids and stir and be heated to gradually that abundant the reaction was not less than 6 hours more than 65 degrees centigrade;
(2) above-mentioned reactant is left standstill the heavy component that carries out layering reorganization back elimination lower floor more than 1.5 hours, under the condition of vacuumizing, steam again and remove residual methanol.
The process for purification of hogwash fat is in the described step (1): A, hogwash fat constantly is being heated to 75～90 ℃ under the condition of stirring, add an amount of temperature again and be 80～95 ℃, concentration and be 3.5～4.5% salt solution, stir and wash more than 25 minutes, stop heating and stirring, leave standstill and carry out more than 25 minutes bleeding off lower floor's waste water after the layering; B, can repeating step A many times; C, will be warming up to 105～110 ℃, stir dehydration 1～2 hour, till liquid level does not have the gentle bubble of steam with the washed hogwash fat of salt solution; D, the hogwash fat after will washing and an amount of atlapulgite stir more than 0.8 hour the back down in 105-125 ℃ and filter with the middling speed qualitative filter paper.
Fully the time of reaction is that state is 7～9 hours in the described step (1); The reactant time of repose is 2～2.5 hours in the described step (2).
Methyl alcohol described in the described step (1) is 17～34/100 with the deal ratio of refined hogwash fat, and described toluenesulphonic acids is 0.8～3.2/100 with the deal ratio of refined hogwash fat.
Salt solution described in the described steps A is 25～35/100 with the deal ratio of hogwash fat; Atlapulgite is 3～4/100 with the deal ratio of initial hogwash fat among the described step D.。
The temperature of the heating of the hogwash fat described in the described steps A is 80～85 ℃.
After adopting technique scheme, because the hogwash fat composition mainly is the tri-fatty glyceride, under catalyzer and heating certain condition, carry out transesterification reaction with methyl alcohol, obtain Fatty acid methyl ester.The molecular weight of fatty acid methyl ester, form, solidify fixed, flash-point, fuel value is suitable with petroleum diesel, can replace petroleum diesel fully, so be referred to as biofuel.It is greatly different in size to have solved the existing biofuel molecular weight that utilizes hogwash fat to prepare to obtain in the method for bio-diesel oil, and flash-point, burning-point are asynchronous, when being used for diesel engine, and the inadequate technical problem of burning.Biofuel of the present invention in addition is almost completely synthetic with biomaterial, and product is nontoxic, tasteless, biodegradable, can not cause negative impact to environment.
Embodiment
A kind of hogwash fat that utilizes prepares method of bio-diesel oil, may further comprise the steps: 1) get 1000 parts of hogwash fats, add in the beaker, put agitator on the beaker, place the electric furnace of adjustable temperature below.Constantly be heated to 75～90 ℃ under the condition of stirring, preferred temperature is 80～85 ℃, adds temperature then and be 85～90 ℃, concentration and be 250～350 parts of 3.5～4.5% salt solution, and brinish concentration is generally 4%, deal is generally 300 parts, stir more than 25 minutes, generally stirred 30 minutes, stop heating and stirring, leave standstill more than 25 minutes, generally leave standstill and carried out layering in 30 minutes, layering can be carried out in separating funnel, bleeds off lower floor's waste water.By this step washing repeatedly, get final product for general 2-3 time; 2) will be warming up to 105～110 ℃ with the washed hogwash fat of salt solution, stir dehydration 1～2 hour, till liquid level does not have the gentle bubble of steam; 3) hogwash fat that took off water adds 30～40 parts atlapulgite, stirs more than 0.8 hour down in 110～120 ℃, is generally 1 hour, filters with the middling speed qualitative filter paper then; 4) with about 610 parts of above-mentioned refined hogwash fat, about 105～210 parts of methyl alcohol, be generally 5～20 parts of 105 parts, toluenesulphonic acids, be generally 10 parts, add in 1 liter of four-hole boiling flask in turn, the stirrer of adjustable speed is housed on the four-hole boiling flask, 200 ℃ of mercurythermometers, be connected with the spherical condenser of water coolant, but underlying 1000W adjustable electric cooking stove, reaction is more than 6 hours under reflux temperature, and the preferred time is 7～9 hours, be generally 8 hours, the building-up reactions equation is:
Stop heating and stirring, leave standstill more than 1.5 hours, the preferred time is 2～2.5 hours, general 2 hours; 5) divide sub-cloud heavy constituent (mainly being excessive methanol and glycerine) with above-mentioned reaction product with separating funnel, the upper strata places matrass than light constituent, at first under normal pressure, remove major part and be dissolved in methyl alcohol in the material, under the condition of vacuumizing, steam again and remove residual methanol.Remaining thing is the purpose product of alternative diesel oil in the bottle; Lower floor's heavy constituent of 6) separating mainly are glycerine and excessive methanol, by air distillation methyl alcohol are separated with glycerine.Methyl alcohol can be again as raw material, and glycerine is a kind of application basic chemical industry raw material very widely.
With present method synthetic purpose product is pale brown look liquid at normal temperatures, proportion ≈ 0.78g/cm3 (20 ℃), and combustion heat value is about 3.4 * 10
7J/kg.Every index and+5 detects in petroleum chemicals inspection center through specialty
#Diesel oil is suitable.Probationary certificate on multiple diesel vehicle, every km oil consumption and 0
#Or+5
#Solar oil is suitable.The generation of black smoke is also than 0 in the exhaust gas emission
#Or+5
#Solar oil is low.
Claims (6)
1, a kind of hogwash fat that utilizes prepares method of bio-diesel oil, it is characterized in that, may further comprise the steps:
(1) refined hogwash fat, an amount of methyl alcohol are mixed the back with the catalyzer toluenesulphonic acids and stir and be heated to gradually that abundant the reaction was not less than 6 hours more than 65 degrees centigrade;
(2) above-mentioned reactant is left standstill the heavy component that carries out layering reorganization back elimination lower floor more than 1.5 hours, under the condition of vacuumizing, steam again and remove residual methanol.
2, the hogwash fat that utilizes as claimed in claim 1 prepares method of bio-diesel oil, it is characterized in that, the process for purification of hogwash fat is in the described step (1): A, hogwash fat constantly is being heated to 75～90 ℃ under the condition of stirring, add an amount of temperature again and be 80～95 ℃, concentration and be 3.5～4.5% salt solution, stir and wash more than 25 minutes, stop heating and stirring, leave standstill and carry out more than 25 minutes bleeding off lower floor's waste water after the layering; B, can repeating step A many times; C, will be warming up to 105～110 ℃, stir dehydration 1～2 hour, till liquid level does not have the gentle bubble of steam with the washed hogwash fat of salt solution; D, the hogwash fat after will washing and an amount of atlapulgite stir more than 0.8 hour the back down in 105～125 ℃ and filter with the middling speed qualitative filter paper.
3, the hogwash fat that utilizes as claimed in claim 1 prepares method of bio-diesel oil, it is characterized in that, fully the time of reaction is that state is 7～9 hours in the described step (1); The reactant time of repose is 2～2.5 hours in the described step (2).
4, the hogwash fat that utilizes as claimed in claim 1 or 2 prepares method of bio-diesel oil, it is characterized in that, methyl alcohol described in the described step (1) is 17～34/100 with the deal ratio of refined hogwash fat, and described toluenesulphonic acids is 0.8～3.2/100 with the deal ratio of refined hogwash fat.
5, the hogwash fat that utilizes as claimed in claim 2 prepares method of bio-diesel oil, it is characterized in that, the salt solution described in the described steps A is 25～35/10 with the deal ratio of hogwash fat; Atlapulgite is 2～4/100 with the deal ratio of initial hogwash fat among the described step D.
6, the hogwash fat that utilizes as claimed in claim 2 prepares method of bio-diesel oil, it is characterized in that, the temperature of the heating of the hogwash fat described in the described steps A is 80～85 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100264114A CN1560197A (en) | 2004-03-05 | 2004-03-05 | Process of preparing biologic diesel oil by swill oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100264114A CN1560197A (en) | 2004-03-05 | 2004-03-05 | Process of preparing biologic diesel oil by swill oil |
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| CN1560197A true CN1560197A (en) | 2005-01-05 |
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| CNA2004100264114A Pending CN1560197A (en) | 2004-03-05 | 2004-03-05 | Process of preparing biologic diesel oil by swill oil |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376657C (en) * | 2005-09-28 | 2008-03-26 | 赵志明 | method for producing biologic diesel oil through use of tailings of animal and vegetable oils in high acid number |
| CN100404642C (en) * | 2006-08-14 | 2008-07-23 | 江南大学 | Method of preparing biologic diesel oil from high acid value vegetable oil catalyzed by p-toluenesulfonic acid |
| CN101063040B (en) * | 2006-04-29 | 2010-08-18 | 陈丰 | Method for preparing biological diesel by hogwash oil |
| CN103275812A (en) * | 2013-04-26 | 2013-09-04 | 青岛中科润美润滑材料技术有限公司 | Method for preparing base oil of lubricating oil from waste animal and vegetable oil |
| CN103497842A (en) * | 2013-10-18 | 2014-01-08 | 北京科技大学 | New method of utilizing methanol and ethanol as ester exchange agent for preparing biodiesel |
| CN104178358A (en) * | 2014-08-04 | 2014-12-03 | 南京农业大学 | Method for producing biodiesel by using fat from animals died of illness |
-
2004
- 2004-03-05 CN CNA2004100264114A patent/CN1560197A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376657C (en) * | 2005-09-28 | 2008-03-26 | 赵志明 | method for producing biologic diesel oil through use of tailings of animal and vegetable oils in high acid number |
| CN101063040B (en) * | 2006-04-29 | 2010-08-18 | 陈丰 | Method for preparing biological diesel by hogwash oil |
| CN100404642C (en) * | 2006-08-14 | 2008-07-23 | 江南大学 | Method of preparing biologic diesel oil from high acid value vegetable oil catalyzed by p-toluenesulfonic acid |
| CN103275812A (en) * | 2013-04-26 | 2013-09-04 | 青岛中科润美润滑材料技术有限公司 | Method for preparing base oil of lubricating oil from waste animal and vegetable oil |
| CN103275812B (en) * | 2013-04-26 | 2014-12-10 | 青岛中科润美润滑材料技术有限公司 | Method for preparing base oil of lubricating oil from waste animal and vegetable oil |
| CN103497842A (en) * | 2013-10-18 | 2014-01-08 | 北京科技大学 | New method of utilizing methanol and ethanol as ester exchange agent for preparing biodiesel |
| CN103497842B (en) * | 2013-10-18 | 2015-10-21 | 北京科技大学 | The first and second alcohol are utilized to prepare the novel method of biofuel as ester exchange agent |
| CN104178358A (en) * | 2014-08-04 | 2014-12-03 | 南京农业大学 | Method for producing biodiesel by using fat from animals died of illness |
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