CN104651059A - Method used for preparing biodiesel via solid base catalysis - Google Patents
Method used for preparing biodiesel via solid base catalysis Download PDFInfo
- Publication number
- CN104651059A CN104651059A CN201310581523.5A CN201310581523A CN104651059A CN 104651059 A CN104651059 A CN 104651059A CN 201310581523 A CN201310581523 A CN 201310581523A CN 104651059 A CN104651059 A CN 104651059A
- Authority
- CN
- China
- Prior art keywords
- grease
- oil
- methanol
- reaction
- catalyzer
- 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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Links
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000007787 solid Substances 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 235000019387 fatty acid methyl ester Nutrition 0.000 claims abstract description 8
- 239000004519 grease Substances 0.000 claims abstract description 8
- 239000000047 product Substances 0.000 claims abstract description 8
- 239000012043 crude product Substances 0.000 claims abstract description 5
- 238000007738 vacuum evaporation Methods 0.000 claims abstract description 5
- 239000002551 biofuel Substances 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 8
- 235000019198 oils Nutrition 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 239000002283 diesel fuel Substances 0.000 claims description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 4
- 238000005204 segregation Methods 0.000 claims description 4
- 235000012424 soybean oil Nutrition 0.000 claims description 4
- 239000003549 soybean oil Substances 0.000 claims description 4
- 238000006424 Flood reaction Methods 0.000 claims description 2
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 2
- 235000015320 potassium carbonate Nutrition 0.000 claims description 2
- 235000010333 potassium nitrate Nutrition 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 9
- 239000003225 biodiesel Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000035484 reaction time Effects 0.000 abstract description 2
- 238000005815 base catalysis Methods 0.000 abstract 1
- 238000005119 centrifugation Methods 0.000 abstract 1
- 238000005191 phase separation Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
- 239000002585 base Substances 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 3
- 108090000790 Enzymes Proteins 0.000 description 3
- 235000011089 carbon dioxide Nutrition 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000005809 transesterification reaction Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004032 superbase Substances 0.000 description 1
- 150000007525 superbases Chemical class 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
- C11C3/04—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fats or fatty oils
- C11C3/10—Ester interchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/02—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the alkali- or alkaline earth metals or beryllium
- B01J23/04—Alkali metals
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/02—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
- C10L1/026—Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only for compression ignition
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2270/00—Specifically adapted fuels
- C10L2270/02—Specifically adapted fuels for internal combustion engines
- C10L2270/026—Specifically adapted fuels for internal combustion engines for diesel engines, e.g. automobiles, stationary, marine
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Fats And Perfumes (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
The invention relates to a method used for preparing biodiesel via solid base catalysis. The method is used for solving problems of conventional biodiesel technology that separation technology of catalysts and products is complicated, and waste water is generated in production processes. The method comprises following steps: 300 to 400g of grease, methanol, and a catalyst are delivered into a reaction vessel for reaction, wherein molar ratio of methanol to grease ranges from 10:1 to 12:1, the amount of the catalyst accounts for 1 to 3% of that of the grease, reaction temperature is controlled to be 60 to 70 DEG C, and reaction time ranges from 2 to 4h; an obtained crude product is subjected to centrifugation so as to remove the catalyst and realize phase separation, and methanol is removed via vacuum evaporation so as to obtain a fatty acid methyl ester product.
Description
Technical field
The present invention relates to a kind of method of biodiesel synthesis, particularly relate to a kind of method utilizing catalyzed by solid base biodiesel synthesis.
Background technology
Biofuel is the oil-fired clean alternative fuel that a kind of renewable biological source such as plant, animal grease is produced, and its chemical constitution is a series of longer chain fatty acid methyl esters, ethyl ester etc.Relative to petrifaction diesel, in biofuel, oxygen level is high, and ratio of combustion is safer; Sulphur content is low, in combustion exhaust sulfurous gas and sulfide than petrifaction diesel burn the sulfurous gas that discharges and sulfide low by 70%; And the carbonic acid gas discharged during biofuel burning is far below the carbonic acid gas absorbed in growing process, thus the Global warming caused due to the discharge of carbonic acid gas can be improved.Biofuel overcomes the drawback of petrifaction diesel environmental pollution and can substitute the petrifaction diesel of worsening shortages, therefore becomes the petrifaction diesel substitute having development prospect.
At present, have patent report to use the short-chain aliphatic esters such as methyl acetate as the preparation biofuel of transesterify reagent, but this kind of patent adopt enzyme as catalyzer mostly.Enzyme catalyst activity is lower, makes the transesterification reaction time long, and the preservation of enzyme and immobilization difficulty, make production cost high.
The pollution brought along with large industry is day by day serious, and the friendly Catalytic processes of development environment more and more causes the attention of people, and increasing investigator notices the status of alkalescence in heterogeneous, finds that solid base catalyst has special katalysis.Solid alkali or super base has high reactivity, highly selective as catalyzer, active ingredient can extensively change, use temperature scope is wide, reaction conditions is gentle, product is easily separated, production technique is simple, side reaction is few, productive rate is high, there is not the features such as volatile corrosion material, be considered to a kind of environment-friendly type catalyzer, the requirement of no pollution is reached in preparation and use procedure, very promising in the industry, will critical role be accounted in environmental friendly catalysis technique, be expected to become environmental friendly catalysis material of new generation.And each biofuel of the catalyzed by solid base system of employing not only can avoid catalyst separating in traditional homogeneous acid base-catalyzed transesterification process more difficult, have that waste liquid is many, side reaction is many and the serious problems such as emulsion, and reaction conditions is gentle, catalyzer is reusable.
Summary of the invention
Producing useless water problem to solve catalyzer and product separating technique complexity, production process in existing biodiesel technology, the invention provides the solid alkali catalytic method for preparing biological diesel oil that a kind of technique is simple, environmental.
The technical solution realizing above-mentioned purpose is as follows:
Solid alkali catalytic method for preparing biological diesel oil comprises following operation steps:
In a kettle., 300-400 gram of grease is added, the methyl alcohol of molar ratio of methanol to oil 10:1-12:1, the catalyzer of oil quality 1%-3%, temperature of reaction 60-70 DEG C, time 2-4h; Crude product removes methyl alcohol through centrifugal segregation catalyzer, phase-splitting, vacuum-evaporation, obtains fatty acid methyl ester product.
Described grease is soybean oil, rapeseed oil;
Described catalyzer is, with KNO3 and K2CO3 for presoma floods γ-Al
2o
3the K that carrier is prepared by dry, roasting
2o/ γ-Al
2o
3.
Embodiment
Embodiment 1
In a kettle., 300 grams of soybean oil are added, the methyl alcohol of molar ratio of methanol to oil 10:1, the K of oil quality 3%
2o/ γ-Al
2o
3solid base catalyst, temperature of reaction 65 DEG C, time 3h; Crude product removes methyl alcohol through centrifugal segregation catalyzer, phase-splitting, vacuum-evaporation, obtains fatty acid methyl ester product.The productive rate detecting fatty acid methyl ester is 87.5%.
Embodiment 2
In a kettle., 300 grams of soybean oil are added, the methyl alcohol of molar ratio of methanol to oil 12:1, the K of oil quality 3%
2o/ γ-Al
2o
3solid base catalyst, temperature of reaction 65 DEG C, time 3h; Crude product removes methyl alcohol through centrifugal segregation catalyzer, phase-splitting, vacuum-evaporation, obtains fatty acid methyl ester product.The productive rate detecting fatty acid methyl ester is 90.1%.
Above embodiment is only in order to illustrate technical scheme of the present invention, but not be limited, although with reference to above-described embodiment to invention has been detailed description, for the person of ordinary skill of the art, still can the technical scheme described in above-described embodiment be modified, or equivalent replacement is carried out to wherein portion of techniques feature, and these amendments or replace, do not make the essence of appropriate technical solution depart from the spirit and scope of technical scheme of the presently claimed invention.
Claims (3)
1. solid alkali catalytic method for preparing biological diesel oil, is characterized in that comprising following operation steps: in a kettle., adds 300-400 gram of grease, the methyl alcohol of molar ratio of methanol to oil 10:1-12:1, the catalyzer of oil quality 1%-3%, temperature of reaction 60-70 DEG C, time 2-4h; Crude product removes methyl alcohol through centrifugal segregation catalyzer, phase-splitting, vacuum-evaporation, obtains fatty acid methyl ester product.
2. prepare the method for biofuel according to claim 1, it is characterized in that: described grease can be soybean oil, rapeseed oil.
3. prepare the method for biofuel according to claim 1, it is characterized in that: described catalyzer is, with KNO3 and K2CO3 for presoma floods γ-Al
2o
3the K that carrier is prepared by dry, roasting
2o/ γ-Al
2o
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310581523.5A CN104651059A (en) | 2013-11-19 | 2013-11-19 | Method used for preparing biodiesel via solid base catalysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310581523.5A CN104651059A (en) | 2013-11-19 | 2013-11-19 | Method used for preparing biodiesel via solid base catalysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104651059A true CN104651059A (en) | 2015-05-27 |
Family
ID=53242712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310581523.5A Pending CN104651059A (en) | 2013-11-19 | 2013-11-19 | Method used for preparing biodiesel via solid base catalysis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104651059A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108219981A (en) * | 2016-12-22 | 2018-06-29 | 内蒙古中细软技术开发有限公司 | Base catalysis method biodiesel synthesis |
-
2013
- 2013-11-19 CN CN201310581523.5A patent/CN104651059A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108219981A (en) * | 2016-12-22 | 2018-06-29 | 内蒙古中细软技术开发有限公司 | Base catalysis method biodiesel synthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |