CN103382417A - Biodiesel transesterification technology - Google Patents
Biodiesel transesterification technology Download PDFInfo
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- CN103382417A CN103382417A CN2013100127277A CN201310012727A CN103382417A CN 103382417 A CN103382417 A CN 103382417A CN 2013100127277 A CN2013100127277 A CN 2013100127277A CN 201310012727 A CN201310012727 A CN 201310012727A CN 103382417 A CN103382417 A CN 103382417A
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- reaction
- biofuel
- transesterification
- transesterification reaction
- technology
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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
Abstract
The invention relates to a technology for making grease into fatty acid ester, especially to a biodiesel transesterification technology. The transesterification is a reaction of grease in the presence of a catalyst. The catalyst used in the transesterification is sodium hydroxide. The reaction temperature is 150-155 DEG C, and the reaction pressure is 0.8-0.85 MPa. Due to the accurate pressure and temperature design, the reaction system is a homogeneous system, and the reaction time is greatly shortened. The reaction is complete. In comparison with the conversion rate of a traditional technology being 90-95%, the conversion rate of the technology provided by the invention has a great breakthrough and reaches more than 99.5%.
Description
Technical field
The present invention relates to a kind of oil and fat preparation be become fatty acid ester, particularly a kind of technique of biofuel transesterification reaction.
Background technology
Biofuel refers to the reproducibility diesel oil fuel of the replaced petrifaction diesel made by ester exchange process take the waterplant greases such as oil crops, Wild oil plant and engineering microalgae and animal grease, food garbage wet goods as stock oil.Biofuel is a kind of of biomass energy, and it is the mono alkyl ester that biomass are utilized a kind of longer chain fatty acid that the technology such as thermo-cracking obtain.Biofuel is the mixture of the high complicated organic composition of oxygen level, and these mixtures are mainly the large organism of number molecular weight, almost comprises the oxygen-bearing organic matter of all kinds, as: ether, aldehyde, ketone, phenol, organic acid, alcohol etc.Composite biodiesel be byproduct take discarded vegetable and animals oils, used oil and refinery as raw material, then add catalyzer, synthetic through specific equipment and special process.
In recent years, be subjected to the impact of crude oil price, environmental protection pressure, Biodiesel is in widespread attention.World's biofuel ultimate production was approximately 2,050 ten thousand tons in 2011, and wherein European Union accounts for 51%, and South American region (Brazil is main) accounts for 24%, and Asia 13%, Middle and North America are 11%, other areas 1%.
The production process major part of at present domestic biofuel is all that the two-step approach reaction realizes, then purifies by distillation, and wherein because transesterification reaction is inhomogeneous reaction, long reaction time, low conversion rate, and energy consumption is high.
Summary of the invention
The objective of the invention is to solve above-mentioned deficiency provides a kind of reaction times short, and transformation efficiency is high, the biofuel trans-esterification processes of homogeneous reaction system.
The technical scheme that realizes the object of the invention is a kind of technique of biofuel transesterification reaction, and grease is reacted under the catalyzer existence condition; The catalyzer of described transesterification reaction is sodium hydroxide, and temperature of reaction is 150～155 ℃, and reaction pressure is 0.8～0.85MPa, and reaction system is homogeneous system.
The technique of above-mentioned biofuel transesterification reaction, the temperature of reaction of described transesterification reaction are 150 ℃.
The technique of above-mentioned biofuel transesterification reaction, the reaction pressure of described transesterification reaction are 0.8 MPa.
The technique of above-mentioned biofuel transesterification reaction, the temperature of reaction of described transesterification reaction are 155 ℃.
The technique of above-mentioned biofuel transesterification reaction, the reaction pressure of described transesterify are 0.85 MPa.
Transesterification reaction of the present invention is under the condition of 150 ~ 155 ℃ and 0.8 ~ 0.85 MPa, make each material dissolution enhancing, reaction system is in homogeneous state, and the reactant point of contact increases, and under 100 ℃ of conditions of traditional normal pressure 3 ~ 5 hours of reaction times shorten to 30 minutes, react more abundant, transformation efficiency improves, and below 90%, pressure is over after 0.85MPa lower than the 0.8MPa transformation efficiency for pressure, reaction has reached balance, and transformation efficiency no longer raises.
The transesterification reaction transformation efficiency reaches more than 99.5%, and reaction principle is neutral grease and the methyl alcohol reaction in waste grease
Reaction equation:
The present invention has positive effect: (1) accurate pressure and temperature design, and making reaction system is homogeneous system, the reaction times shortens greatly; (2) accurate pressure and temperature design, making reaction system is homogeneous system, react completely, the transformation efficiency 90 ~ 95% of relative traditional technology, transformation efficiency of the present invention has large breakthrough and reaches more than 99.5%.
Embodiment
(embodiment 1)
Get 100 kilograms of the good waste greases of esterification (molecular-weight average 900), 6 kilograms of anhydrous methanols, 40 gram sodium hydroxide; Waste grease, anhydrous methanol, sodium hydroxide are dosed in reactor, stirring heating, reactor is pressurized to 0.8MPa gradually, and this moment, temperature was elevated to 150 ℃, react 30 minutes, more finally obtained 99.506 kilograms of biofuel through distilling etc.
(embodiment 2)
Get 100 kilograms of the good waste greases of esterification (molecular-weight average 900), 6 kilograms of anhydrous methanols, 40 gram sodium hydroxide; Waste grease, anhydrous methanol, sodium hydroxide are dosed in reactor, stirring heating, reactor is pressurized to 0.85MPa gradually, and this moment, temperature was elevated to 155 ℃, react 30 minutes, more finally obtained 99.602 kilograms of biofuel through distilling etc.
(embodiment 3)
Get 100 kilograms of the good waste greases of esterification (molecular-weight average 900), 6 kilograms of anhydrous methanols, 40 gram sodium hydroxide; Waste grease, anhydrous methanol, sodium hydroxide are dosed in reactor, stirring heating, reactor is pressurized to 0.83MPa gradually, and this moment, temperature was elevated to 155 ℃, react 30 minutes, more finally obtained 99.505 kilograms of biofuel through distilling etc.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. the technique of a biofuel transesterification reaction, react grease under the catalyzer existence condition; It is characterized in that: the catalyzer of described transesterification reaction is sodium hydroxide, and temperature of reaction is 150～155 ℃, and reaction pressure is 0.8～0.85MPa, and reaction system is homogeneous system.
2. the technique of biofuel transesterification reaction according to claim 1, it is characterized in that: the temperature of reaction of described transesterification reaction is 150 ℃.
3. the technique of biofuel transesterification reaction according to claim 2, it is characterized in that: the reaction pressure of described transesterification reaction is 0.8 MPa.
4. the technique of biofuel transesterification reaction according to claim 1, it is characterized in that: the temperature of reaction of described transesterification reaction is 155 ℃.
5. the technique of biofuel transesterification reaction according to claim 4, it is characterized in that: the reaction pressure of described transesterify is 0.85 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310012727.7A CN103382417B (en) | 2013-01-14 | 2013-01-14 | A kind of technique of biofuel transesterification reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310012727.7A CN103382417B (en) | 2013-01-14 | 2013-01-14 | A kind of technique of biofuel transesterification reaction |
Publications (2)
| Publication Number | Publication Date |
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| CN103382417A true CN103382417A (en) | 2013-11-06 |
| CN103382417B CN103382417B (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310012727.7A Expired - Fee Related CN103382417B (en) | 2013-01-14 | 2013-01-14 | A kind of technique of biofuel transesterification reaction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106833909A (en) * | 2016-12-28 | 2017-06-13 | 山东金冠化工有限公司 | The continuous ester exchange process with pressure of waste oil autoclave |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101319169A (en) * | 2008-07-17 | 2008-12-10 | 四川大学 | Quick and clean process for preparing biological diesel oil with esterification/ester exchange reaction |
| CN101418225A (en) * | 2007-10-23 | 2009-04-29 | 北京化工大学 | Method for preparing biodiesel by using supported solid acid combining cosolvent |
| CN101445742A (en) * | 2008-12-30 | 2009-06-03 | 浙江工业大学 | Method for preparing biodiesel by utilizing stratified and graded esterified deacidification of high acid value oil |
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2013
- 2013-01-14 CN CN201310012727.7A patent/CN103382417B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418225A (en) * | 2007-10-23 | 2009-04-29 | 北京化工大学 | Method for preparing biodiesel by using supported solid acid combining cosolvent |
| CN101319169A (en) * | 2008-07-17 | 2008-12-10 | 四川大学 | Quick and clean process for preparing biological diesel oil with esterification/ester exchange reaction |
| CN101445742A (en) * | 2008-12-30 | 2009-06-03 | 浙江工业大学 | Method for preparing biodiesel by utilizing stratified and graded esterified deacidification of high acid value oil |
Non-Patent Citations (4)
| Title |
|---|
| 吴道银，王新雨: "影响碱催化酯交换制备生物柴油各因素分析", 《粮食与油脂》 * |
| 李红等: "碱催化下大豆生物柴油的制备研究", 《大豆科学》 * |
| 王超宇等: "大豆油酯交换法制备生物柴油", 《牡丹江师范学院学报(自然科学版)》 * |
| 钟鸣等: "磷酸催化地沟油制备生物柴油的研究", 《信阳师范学院学报:自然科学版》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106833909A (en) * | 2016-12-28 | 2017-06-13 | 山东金冠化工有限公司 | The continuous ester exchange process with pressure of waste oil autoclave |
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| CN103382417B (en) | 2015-12-23 |
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Address after: Wujin District of Jiangsu city in Changzhou province 213116 Zheng Lu Wu Shun Cheng Industrial Park Road No. 1 Applicant after: Jiangsu Kate New Energy Co., Ltd. Address before: 213102 Jiangsu city of Changzhou province Qi Jian Lu ditch East No. 200 Applicant before: Jiangsu Kate New Energy Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20190114 |