CN108219976A - A kind of supercritical extraction biodiesel synthesis - Google Patents
A kind of supercritical extraction biodiesel synthesis Download PDFInfo
- Publication number
- CN108219976A CN108219976A CN201611243523.4A CN201611243523A CN108219976A CN 108219976 A CN108219976 A CN 108219976A CN 201611243523 A CN201611243523 A CN 201611243523A CN 108219976 A CN108219976 A CN 108219976A
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- CN
- China
- Prior art keywords
- supercritical extraction
- biodiesel
- catalyst
- oil
- supercritical
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- 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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Classifications
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- 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
-
- 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
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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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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Fats And Perfumes (AREA)
Abstract
Supercritical extraction：Supercritical extraction is the transesterification reaction using high methanol feedstock oil ratio (41.5 42.5: 1) (350 450 DEG C and 1200PSi pressure) in the supercritical state.Its reaction time is rapid, can react completion at 34 minutes or so.But operating cost is high, high energy consumption.The advantages of supercritical extraction, is also resided in without using catalyst, eliminates the program of catalyst dissolving and separation.
Description
Technical field
A kind of supercritical extraction biodiesel synthesis
The present invention relates to the biodiesel technology fields of alternative petrifaction diesel, and in particular to a kind of biodiesel synthesis and
Its technical method.
Invention content
A kind of supercritical extraction biodiesel synthesis
Biodiesel, also known as fatty acid methyl ester are given up with fruit seeds flora conduits milk or animal tallow oil
Edible oil abandoned etc. makees raw material, is obtained with alcohols (methanol ethyl alcohol) through Transesterification.Biodiesel synthesis refers to using all kinds of
Animal and plant fat is raw material, is modified with alcohols materials such as methanol or ethyl alcohol by friendship esterification reaction, it is made to ultimately become for Inner
A kind of fuel that combustion engine uses.Biodiesel has some clear superiorities, and sulfur content is low, can reduce by about 30% sulfur dioxide
With the discharge of sulfide；Biodiesel has preferable greasy property, can reduce the mill of injection pump, engine cylinder body and connecting rod
Damage, extends its service life；Biodiesel has good fuel performance, and the safety used etc. in transport storages
Property is better than petrifaction diesel.In addition, biodiesel is a kind of regenerative resource and a kind of higher energy of degradability.It uses
Biodiesel can reduce CO2 emission and the discharge of air pollutants.
Background technology
A kind of supercritical extraction biodiesel synthesis
For biodiesel oil product characteristic compared with common diesel, biodiesel has incomparable performance.(1) have excellent
Good environmental protection characteristic.It is mainly manifested in since sulfur content is low in biodiesel so that the discharge of sulfur dioxide and sulfide is low, can
Reduce by about 30% (being 70% when having catalyst)；The aromatic series alkane that can be polluted to environment is free of in biodiesel, thus
Exhaust gas is to human body damage less than petrifaction diesel.Detection shows compared with ordinary diesel oil, and 90% sky can be reduced using biodiesel
Gas toxicity, the trouble for reducing by 94% hinder rate；Due to biodiesel oxygen content height, make few, the discharge of carbon monoxide of discharging fume during its burning
Reduce by about 10% (being 95% when having catalyst) compared with diesel oil；The biological degradability of biodiesel is high.(2) have preferable
Cryogenic engine startability.Additive-free cold filter plugging point reaches -20 DEG C.(3) there is preferable greasy property.Mobilize injection pump
The low wear rate of machine cylinder body and connecting rod, service life are long.(4) there is preferable security performance.Due to flash-point height, biodiesel
It is not belonging to dangerous material.Therefore, it is obvious in transport having for use aspects of storage.(5) have good fuel
Energy.Cetane number is high, its flammability is made to be better than diesel oil, and combustion residue makes the use of catalyst and engine motor oil in subacidity
Service life lengthens.(6) there is renewable performance.As regenerative resource, its different from petroleum reserves passes through agricultural and bioscience
The effort of family, can supply will not be exhausted.In summary：Since the carbon dioxide discharged when biodiesel is burnt is far below the plant
Carbon dioxide absorbed in object growth course, so as to improve caused by the discharge of carbon dioxide global warming this have
Evil is in the great environmental problem of the mankind.Thus biodiesel is a kind of real green diesel.As regenerative resource, with petrochemical industry
It is oily different, can be by strengthening developing agricultural, raw material supply is guaranteed, and price is relatively stablized.Oil crops volume increase space is big, adds
Transgenic technology oil plant oil-containing can be made to have certain room for price-cut up to 70% or so.By OPEC, (oil is not defeated for fuel oil supply
Go abroad tissue) control, be more advantageous to the stability and development in international fuel oil market.Meanwhile the discharge of waste oil is reduced, mitigate dirty
The pressure and cost of water process.Waste cooking oil is converted, people's health is ensured, so as to have the function that double environmental protection.
Specific embodiment
A kind of supercritical extraction biodiesel synthesis
Supercritical extraction：Supercritical extraction is in supercritical state using high methanol feedstock oil ratio (41.5-42.5: 1)
The transesterification reaction of (350-450 DEG C and 1200PSi pressure) under state.Its reaction time is rapid, can be anti-at 3-4 minutes or so
It should complete.But operating cost is high, high energy consumption.The advantages of supercritical extraction, is also resided in without using catalyst, eliminates catalyst
Dissolving and the program of separation.
Claims (1)
1. supercritical extraction：Supercritical extraction is in supercriticality using high methanol feedstock oil ratio (41.5-42.5: 1)
Under (350-450 DEG C and 1200PSi pressure) transesterification reaction.Its reaction time is rapid, can be reacted at 3-4 minutes or so
It completes.But operating cost is high, high energy consumption.The advantages of supercritical extraction, is also resided in without using catalyst, and it is molten to eliminate catalyst
Solution and the program of separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243523.4A CN108219976A (en) | 2016-12-22 | 2016-12-22 | A kind of supercritical extraction biodiesel synthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243523.4A CN108219976A (en) | 2016-12-22 | 2016-12-22 | A kind of supercritical extraction biodiesel synthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108219976A true CN108219976A (en) | 2018-06-29 |
Family
ID=62657308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611243523.4A Pending CN108219976A (en) | 2016-12-22 | 2016-12-22 | A kind of supercritical extraction biodiesel synthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108219976A (en) |
-
2016
- 2016-12-22 CN CN201611243523.4A patent/CN108219976A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180629 |
|
| WD01 | Invention patent application deemed withdrawn after publication |