CN105670808A - Method for preparing green biodiesel by using artificially cultured base material - Google Patents

Method for preparing green biodiesel by using artificially cultured base material Download PDF

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CN105670808A
CN105670808A CN201610208068.8A CN201610208068A CN105670808A CN 105670808 A CN105670808 A CN 105670808A CN 201610208068 A CN201610208068 A CN 201610208068A CN 105670808 A CN105670808 A CN 105670808A
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biodiesel
fly larvae
mixed solvent
cultivation tank
artificial cultivation
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任春山
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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
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
    • C11B1/00—Production of fats or fatty oils from raw materials
    • 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)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Fats And Perfumes (AREA)

Abstract

The invention discloses a method for preparing green biodiesel by using an artificially cultured base material. According to the method, a growth factor, a nutritive factor and a culture medium are used as raw materials, a base material for preparing green diesel is artificially cultured, and ester exchange reaction is carried out in a reactor by using acid as a catalyst. The ester exchange reaction does not have special requirements or strict restrictions for the base material, and the process is simple and enhances the production efficiency, so that the cost of the green biodiesel technique is greatly lower than the production cost of other types of biodiesel and raw oil. The method overcomes the defect that the raw materials for preparing the biodiesel are restricted to the condition that human beings fight for the edible oil and oil plant seeds to get the energy in return, boldly makes a breakthrough and innovation in the field of biodiesel, and develops the sustainable-development new base material for preparing biodiesel, thereby greatly reducing the investment, and opening up a new prosperous prospect for the traditional biodiesel industry.

Description

The method of green bio diesel oil prepared by the base material utilizing artificial cultivation
Technical field
The invention belongs at biodiesel chemical field, be raw material with the base material of artificial cultivation, the method preparing green bio diesel oil in the reactor.
Background technology
Currently worldwide, the production of biodiesel mainly selects vegetable and animals oils with processing, including containing plant seed, directly prepare the technology of biodiesel, also have and utilize kitchen waste oil and Preparation of biodiesel from waste oils, it is limited that above method all belongs to raw material, had both again expensive by its vegetable oil and its seed (be the mankind fight for edible oil exchange the energy for), the restriction of raw material sources shortage, although domestic and international many patent applications, such as Chinese patent: CN102703135B, CN103865658B, CN101531913A, CN102041108A, also has France CN101809133, Brazil CN1826403A and US7112229, India CN101702916A, all prepare biodiesel around the plant seed of utilized oil-containing, namely without innovation, do not possess again advance.
Summary of the invention
The raw material preparing green bio diesel oil is to pass through somatomedin, culture medium, the one that nutritional factors artificial cultivation goes out is rich in oils and fats maggot body, what adopted is that Biological Principles is passing through physics, the hands section of chemistry, its maggot cells in vivo is made to break, oils and fats is precipitated out from cell, chemically namely penetrate in cell with the organic solvent that can dissolve oils and fats, the while of occurring swelling, oils and fats and the alcohol mixed solvent of phasic property are under strong stirring and reaction temperature, ester exchange reaction has been carried out under the effect of catalyst, effect is close to homogeneous reaction, therefore, ester exchange reaction quickly carries out, the present invention is based on this theory and proposes a kind of method that green bio diesel oil prepared by base material utilizing artificial cultivation after repetition test, the method is to be somatomedin by coal, sewage is nutritional factors, sorbitan monostearate is culture medium, obtaining a kind of grease-contained maggot body through artificial cultivation is raw material, by heating and mixed solvent, under catalyst and stirring action, make oils and fats precipitate out and carry out ester exchange reaction, process is simple, green bio diesel yield is high, cost is low, rich grease-contained fly larvae is obtained as preparing biodiesel raw material up to the present by artificial cultivation, worldwide it is not yet reported that cross this type of method.
The method of green bio diesel oil prepared by the present invention, with grease-contained maggot body for raw material, with petroleum ether and methanol for mixed solvent, concentrated sulphuric acid is catalyst, comprise the steps: to mix maggot, mixed solvent and catalyst in the reactor, be stirred at reflux lower reaction 40-65 minute, after reaction terminates, separated, distillation obtains green bio diesel oil.Described fly larvae polypide is fat 28.1-40.3%, protein 24.7-38.6%, and moisture 4.7%, all the other are the impurity such as mineral.
Specifically: the present invention provides a kind of preparation method utilizing artificial cultivation base material to extract green bio diesel oil, comprises the steps:
With grease-contained maggot body for raw material, mixed solvent and catalyst are stirred at reflux reaction 40-65 minute in the reactor, and temperature is 110-160 DEG C, and agitation revolution is 360-720 rev/min, after reaction terminates, separated, and distillation obtains green bio diesel oil. The present invention is without individually extracting the oils and fats in maggot body, but makes oil extraction in maggot body and ester exchange reaction carry out by back flow reaction stirring simultaneously, directly prepares biodiesel, be simplified to that one procedure completes, improve production efficiency.
Wherein mixed solvent is petroleum ether and methanol, somatomedin coal should be pulverized in advance, and granularity is 200 orders, it is preferable that C content more than 78%, nutritional factors is containing one or two or more kinds in the flyblown lake water of fly ovum or artificial vaccination, river or sewage, it is preferable that sewage; Sewage is one or two or more kinds in sewage ditch-water, the half congealed water of sewage, cesspool water or resident living sewage.
Preferably separating upper strata to steam mixed solvent and obtain green bio diesel oil, lower catalyst agent can be recycled after separating secondary, and filtering residue press dry, the dried albumen feedstuff being used as livestock-raising or as vegetable fertilizer.
In mixed solvent, the percentage by weight of petroleum ether and methanol is preferably 6:4 to 4:6. The consumption of mixed solvent and maggot body weight are than for 6-7:4-3, it is preferred to 6.8-7:3.2-3.
After reaction of the present invention terminates, the method preferably employing vacuum filtration, remove bits, the filtrate stratification that will obtain, separating upper oil phase and lower floor's acid catalyst, what upper oil phase went out that solvent obtains through vacuum distilling is green bio diesel oil, and mixed solvent can be recycled, filtering residue can press dry, and is used as the albumen feedstuff of livestock-raising after drying or as vegetable fertilizer.
Described somatomedin coal C content is more than 78%, is 1.19%-1.86% containing N content,
Grinding particle size is 200 orders, culture medium sorbitan monostearate, and nutritional factors is the river containing fly blow, sewage or lake water, after three kinds of former base material mixing and stirring, in cultivation tank, constant temperature 27-32 DEG C, preferred 29-30 DEG C, the time is 240-340 hour, it is preferable that 280 hours. In order to the maggot body cultivating into high-quality.
Feature of the present invention, one, it is breach over cultivation maggot to be mainly used for originating as protein feeds into fresh food and Peru Fish Dietary, utilization ways and the level of maggot resource are expanded, feeding habits feature according to maggot and the adaptive capacity to environment, have selected the coal containing high C content and low N content is somatomedin, with the sewage containing fly blow or lake water for nutritional factors, with sorbitan monostearate for culture medium, through repetition test for many years, rich fatty milky maggot body is cultivated out in time present invention provide that, two, it is with the maggot body of artificial cultivation for raw material, with acid for catalyst, with petroleum ether and methanol for mixed solvent. make maggot body oil extraction carry out ester exchange reaction by heated and stirred backflow simultaneously, directly prepare green bio diesel oil, three, be raw material it is the rich fatty maggot body of the one obtained by artificial cultivation, without dry and pulverizing, moisture in raw material overflows raw material under High Temperature And Velocity stirs, the internal consequent space of raw material is made to be more conducive to the depth of penetration of solvent, four, it is that the oils and fats of maggot body leaches from cell ester exchange reaction just occurs immediately, namely there occurs and directly leach and ester exchange reaction, the oil phase separated is namely without refine, only need to steam mixed solvent, just because of these features, make the price of the puzzlement at field of biodiesel oil raw material sources and costliness, complicated post-production and the problem that all can not expand yield and scale so far thereby resulted in are readily solved.
What is more important prepares the raw material of biodiesel by artificial cultivation, this is a bold breakthrough and innovation, also it is the much progress preparing biodiesel material science, is feasible effective new method, a new way solving current production of biodiesel.
Detailed description of the invention
Described maggot is fat 32.1-44.3%, protein 28.7-40.2%, and moisture 4.7%, all the other are the impurity such as mineral.
Described fly larvae cultivates in artificial cultivation tank, artificial cultivation tank is cylindrical plastic container, container is high 4 meters, diameter 3 meters, the bottom of tank body is provided with the discharge gate of valve, the upper end of tank body is provided with manhole, manhole is provided with gland, and is provided with the passage of diameter 100mm in artificial cultivation tank upper end, is provided with 8 eye mesh screens preventing fly larvae from escaping in passage.
Described reactor adopts microwave temperature-sensitive reactor.
Embodiment 1
Coal is pulverized 200 orders, and (C content is 78%, leaded wastewater is 1.86%), same sorbitan monostearate, (750kg raw material altogether after river containing fly blow 60:0.6:39.4 by weight percentage is placed in artificial cultivation tank (charge 70% of raw material) mixing and stirring, wherein contain the ovum that fly blow number is about 2.5 hundred million), stop stirring, constant temperature 27 DEG C, time is 240 hours, take a breath once at interval of the gland opening artificial cultivation tank for 24 hours in artificial cultivation tank, time of exchanging gas is 5 minutes, scavenging period is avoided inside sunlight direct irradiation cultivation tank, in cultivation tank, relative humidity controls at 65-70%, collect rich fatty fly larvae 748kg (by weight, in fly larvae polypide: fat 44.3%, protein 28.7%, moisture 4.7%, all the other are the impurity such as mineral) it is placed in reactor, mixed solvent (wherein the percentage by weight 60:40 of the methanol of petroleum ether and mass concentration 98%) is added in reactor, fly larvae and mixed solvent weight ratio are 30:70, the concentrated sulphuric acid (mass concentration 98%) of fly larvae weight 4% is added again in reactor, being stirred at reflux the time constant temperature 160 DEG C is 40 minutes, stopped reaction cools to 108 DEG C, vacuum filtration, filtering residue can as feedstuff or fertilizer, filtrate upper oil phase is separated with lower catalyst agent, oil phase vacuum distilling goes out the colorless transparent oil 280kg (being green bio diesel oil) that mixed solvent obtains, biodiesel obtained above is after testing, its condensation point is-7 DEG C, cold filter plugging point is-1 DEG C, close flash point is 143 DEG C, 40 DEG C of kinematic viscositys are 4.17mm2, mechanical impurity, Cetane number 60, acid number is 0.36mgKOH/g, density 846.9 (20 DEG C) kg/m3, These parameters all meets the standard GB/T/T20828-2007 requirement to biodiesel performance.
Comparative example 1
Process is with described in embodiment 1, and difference from Example 1 is in that, pulverizes as somatomedin using the coal that C content is 70%, it is thus achieved that fly larvae 625Kg, obtains the fat 23.1% of fly larvae body, protein 56.5%, moisture 5.8%, and all the other are mineral.
Conclusion: the coal that C content is low causes yielding poorly of fly larvae polypide, and in maggot body, fat content is low, diesel yield reduces.
Embodiment 2
By the coal after pulverizing, (wherein 200 orders pulverized by coal, C content is 79%, leaded wastewater is 1.65%), sorbitan monostearate, river containing fly blow is by weight percentage for 58:0.55:41.45 (the 750kg raw material altogether that is placed in artificial cultivation tank (charge 70%) mix and blend, wherein contain the ovum that fly blow number is about 2.49 hundred million) uniformly after, stop stirring, constant temperature 28 DEG C, time is 260 hours, take a breath once at interval of the gland opening artificial cultivation tank for 24 hours in artificial cultivation tank, time of exchanging gas is 5 minutes, scavenging period is avoided inside sunlight direct irradiation cultivation tank, in cultivation tank, relative humidity controls at 65-70%, the fatty fly larvae 747kg of richness obtained is (by weight, in fly larvae polypide: fat 41.86%, protein 31%, moisture 4.7%, all the other are the impurity such as mineral) it is placed in reactor, mixed solvent (the percentage by weight 57:43 of petroleum ether and methanol) is added in reactor, fly larvae and mixed solvent weight ratio are 32:68, the concentrated sulphuric acid (mass concentration 98%) of fly larvae weight 3.5% is added again in reactor, being stirred at reflux the response time constant temperature 150 DEG C is 45 minutes, stopped reaction cool to 105 DEG C after sucking filtration, filtering residue press dry, dried as feedstuff, filtrate upper oil phase is separated with lower catalyst agent, oil phase vacuum distilling goes out mixed solvent and recycles, boil off the near colorless clean oil 265kg (being green bio diesel oil) that mixed solvent obtains, biodiesel obtained above is after testing, its condensation point is-7 DEG C, cold filter plugging point is-1 DEG C, close flash point is 143 DEG C, 40 DEG C of kinematic viscositys are 4.17mm2, mechanical impurity, Cetane number 60, acid number is 0.36mgKOH/g, density 846.9 (20 DEG C) kg/m3, These parameters all meets the standard GB/T/T20828-2007 requirement to biodiesel performance.
Comparative example 2
Process is with described in embodiment 2, and difference from Example 2 is in that, without sorbitan monostearate, coal major part is remaining; Obtain fly larvae 220Kg, short and small, shoddy, obtain the fat 11.6% of fly larvae body, protein 73.3%, moisture 5.4%, all the other are mineral.
Conclusion: obtain yielding poorly of fly larvae body in comparative example, diesel yield reduces, and wastes resource.
Embodiment 3
By the coal after pulverizing, (wherein 200 orders pulverized by coal, C content is 80%, leaded wastewater is 1.50%), sorbitan monostearate, river containing fly blow is placed in artificial cultivation tank (charge 70%) after mixing and stirring for 56:0.5:43.5 by weight percentage and (is total to 750kg raw material, wherein contain the ovum that fly blow number is about 2.48 hundred million), stop stirring, constant temperature 29 DEG C, time is 280 hours, take a breath once at interval of the gland opening artificial cultivation tank for 24 hours in artificial cultivation tank, time of exchanging gas is 5 minutes, scavenging period is avoided inside sunlight direct irradiation cultivation tank, in cultivation tank, relative humidity controls at 65-70%, the fatty fly larvae 744kg of richness obtained is (by weight, in fly larvae polypide: fat 39.42%, protein 33.3%, moisture 4.7%, all the other are the impurity such as mineral) it is placed in reactor, mixed solvent (the percentage by weight 54:46 of the methanol of petroleum ether and mass concentration 98%) is added in reactor, fly larvae and mixed solvent weight ratio are 34:66, the concentrated sulphuric acid (mass concentration 98%) of fly larvae weight 3% is added again in reactor, being stirred at reflux the response time constant temperature 140 DEG C is 50 minutes, stopped reaction cools to 100 DEG C, vacuum filtration, filtering residue press dry, dried as feedstuff, filtrate upper oil phase is separated with lower catalyst agent, oil phase vacuum distilling goes out mixed solvent and can be recycled, boil off mixed solvent and obtain near colorless clean oil 248kg (being green bio diesel oil), biodiesel obtained above is after testing, its condensation point is-7 DEG C, cold filter plugging point is-1 DEG C, close flash point is 143 DEG C, 40 DEG C of kinematic viscositys are 4.17mm2, mechanical impurity, Cetane number 60, acid number is 0.36mgKOH/g, density 846.9 (20 DEG C) kg/m3, These parameters all meets the standard GB/T/T20828-2007 requirement to biodiesel performance.
Comparative example 3
Process, with described in embodiment 3, differs with embodiment 3, and culture medium changes triglyceride into.
Conclusion: can not obtain fly larvae body in comparative example, wastes resource.
Embodiment 4
By the coal after pulverizing, (200 orders pulverized by coal, C content is 81%, leaded wastewater is 1.35%), sorbitan monostearate, lake water containing fly blow is placed in artificial cultivation tank (charge 70%) after mixing and stirring for 50:0.45:49.55 by weight percentage and (is total to 750kg raw material, wherein contain the ovum that fly blow number is about 2.47 hundred million), stop stirring, constant temperature 30 DEG C, time is 300 hours, take a breath once at interval of the gland opening artificial cultivation tank for 24 hours in artificial cultivation tank, time of exchanging gas is 5 minutes, scavenging period is avoided inside sunlight direct irradiation cultivation tank, in cultivation tank, relative humidity controls at 65-70%, the fatty fly larvae 741kg of richness obtained is (by weight, in fly larvae polypide: fat 36.98%, protein 35.6%, moisture 4.72%, all the other are the impurity such as mineral) it is placed in reactor, mixed solvent (the percentage by weight 50:50 of the methanol of petroleum ether and mass concentration 98%) is added in reactor, fly larvae and mixed solvent weight ratio are 35:65, the concentrated sulphuric acid (mass concentration 98%) of fly larvae weight 2.5% is added again in reactor, being stirred at reflux the response time constant temperature 130 DEG C is 55 minutes, stopped reaction cools to 98 DEG C, vacuum filtration, filtering residue press dry, dried as feedstuff, filtrate upper oil phase is separated with lower catalyst agent, oil phase goes out mixed solvent through vacuum distilling and can be recycled, boil off mixed solvent and obtain near colorless clean oil 232kg (being green bio diesel oil), biodiesel obtained above is after testing, its condensation point is-7 DEG C, cold filter plugging point is-1 DEG C, close flash point is 143 DEG C, 40 DEG C of kinematic viscositys are 4.17mm2, mechanical impurity, Cetane number 60, acid number is 0.36mgKOH/g, density 846.9 (20 DEG C) kg/m3, These parameters all meets the standard GB/T/T20828-2007 requirement to biodiesel performance.
Comparative example 4
Differing with embodiment 4, add without coal, be simply directly connected among lake water and sorbitan monostearate mixed liquor by fly blow, fly blow is choked to death.
Embodiment 5
By the coal after pulverizing, (200 orders pulverized by coal, C content is 82%, leaded wastewater is 1.25%), sorbitan monostearate, lake water containing fly blow is placed in artificial cultivation tank (charge 70%) after mixing and stirring for 52:0.4:47.6 by weight percentage and (is total to 750kg raw material, wherein contain the ovum that fly blow number is about 2.46 hundred million), stop stirring, constant temperature 31 DEG C, time is 320 hours, take a breath once at interval of the gland opening artificial cultivation tank for 24 hours in artificial cultivation tank, time of exchanging gas is 5 minutes, scavenging period is avoided inside sunlight direct irradiation cultivation tank, in cultivation tank, relative humidity controls at 65-70%, the fatty fly larvae 738kg of richness obtained is (by weight, in fly larvae polypide: fat 34.54%, protein 37.9%, moisture 4.7%, all the other are the impurity such as mineral) it is placed in reactor, mixed solvent (the percentage by weight 45:55 of the methanol of petroleum ether and mass concentration 98%) is added in reactor, fly larvae and mixed solvent weight ratio are 36:64, the concentrated sulphuric acid (mass concentration 98%) of fly larvae weight 2% is added again in reactor, being stirred at reflux the response time constant temperature 120 DEG C is 60 minutes, stopped reaction cools to 95 DEG C, vacuum filtration, filtering residue press dry, dried as feedstuff, filtrate upper oil phase is separated with lower catalyst agent, oil phase vacuum distilling goes out mixed solvent and recycles, boil off mixed solvent and obtain near colorless clean oil 216kg (being green bio diesel oil), biodiesel obtained above is after testing, its condensation point is-7 DEG C, cold filter plugging point is-1 DEG C, close flash point is 143 DEG C, 40 DEG C of kinematic viscositys are 4.17mm2, mechanical impurity, Cetane number 60, acid number is 0.36mgKOH/g, density 846.9 (20 DEG C) kg/m3, These parameters all meets the standard GB/T/T20828-2007 requirement to biodiesel performance.
Embodiment 6
By the coal after pulverizing, (200 orders pulverized by coal, C content is 83%, leaded wastewater is 1.19%), sorbitan monostearate, lake water containing fly blow is placed in artificial cultivation tank (charge 70%) after mixing and stirring for 50:0.35:49.65 by weight percentage and (is total to 750kg raw material, wherein contain the ovum that fly blow number is about 2.45 hundred million), stop stirring, constant temperature 32 DEG C, time is 340 hours, take a breath once at interval of the gland opening artificial cultivation tank for 24 hours in artificial cultivation tank, time of exchanging gas is 5 minutes, scavenging period is avoided inside sunlight direct irradiation cultivation tank, in cultivation tank, relative humidity controls at 65-70%, the fatty fly larvae 735kg of richness obtained is (by weight, in fly larvae polypide: fat 32.1%, protein 40.2%, moisture 4.7%, all the other are the impurity such as mineral) it is placed in reactor, mixed solvent (the percentage by weight 40:60 of the methanol of petroleum ether and mass concentration 98%) is added in reactor, fly larvae and mixed solvent weight ratio are 38:62, the concentrated sulphuric acid (mass concentration 98%) of fly larvae weight 1.5% is added again in reactor, being stirred at reflux the response time constant temperature 110 DEG C is 65 minutes, stopped reaction cools to 90 DEG C, vacuum filtration, filtering residue can press dry, dried as feedstuff, filtrate upper oil phase is separated with lower catalyst agent, oil phase vacuum distilling goes out mixed solvent and recycles, boil off mixed solvent and obtain near colorless clean oil 200kg (being green bio diesel oil), biodiesel obtained above is after testing, its condensation point is-7 DEG C, cold filter plugging point is-1 DEG C, close flash point is 143 DEG C, 40 DEG C of kinematic viscositys are 4.17mm2, mechanical impurity, Cetane number 60, acid number is 0.36mgKOH/g, density 846.9 (20 DEG C) kg/m3, These parameters all meets the standard GB/T/T20828-2007 requirement to biodiesel performance.
Conclusion: the various index of green bio diesel oil that the present invention extracts all meets national standard, and material source is in artificial cultivation, nontoxic, with low cost, raw material, product is environmental friendliness, there is the low-carbon economic of sustainable development, do not produce again refuse, it is achieved that the zero-emission number of refuse simultaneously.
Although; this patent does and has elaborated and specific embodiments has done detailed explanation; but it can be changed and improve on the basis of the present invention; this is apparent to those skilled in the art; therefore without departing from any changes and improvements done in the spiritual basis of the present invention, protection scope of the present invention is belonged to.

Claims (10)

1. the method for green bio diesel oil prepared by the base material utilizing artificial cultivation, it is characterised in that:
With coal be somatomedin, water be nutritional factors, sorbitan monostearate is for culture medium, in artificial cultivation tank, carry out the cultivation of fly larvae as cultivation base material after they mix homogeneously, obtain rich grease-contained fly larvae, obtain green bio diesel oil by ester exchange.
2. in accordance with the method for claim 1, it is characterised in that:
The process being obtained green bio diesel oil by ester exchange is: petroleum ether and methanol are mixed solvent, acid is catalyst, fly larvae puts into by recipe ratio with mixed solvent and catalyst and is stirred at reflux reaction 40-65 minute at 110-160 DEG C in the reactor, 90 DEG C are cooled to between less than 110 DEG C after reaction, through sucking filtration, liquid phase stratification, upper oil phase vacuum distilling goes out mixed solvent and obtains green bio diesel oil, and lower floor is acid catalyst;
In described mixed solvent, the weight of petroleum ether and methanol is 60-40:40-60; Acid catalyst addition is the 1.5-4% of fly larvae weight, the 60-70:40-30 of mixed solvent and fly larvae weight ratio.
3. in accordance with the method for claim 2, it is characterised in that: described reaction agitation revolution is 360-720 rev/min; Through sucking filtration, after pressing dry filter residue and drying, it is used as feedstuff or fertilizer;
The described liquid phase stratification filtered out, separates upper oil phase and lower floor's acid catalyst, and what upper oil phase went out that solvent obtains through vacuum distilling is green bio diesel oil, and mixed solvent can be recycled, and acid catalyst is capable of circulation to be reused once or twice;
Methanol is the methanol solution of mass concentration more than 98%; Described acid catalyst is concentrated sulphuric acid, and mass concentration is more than 98%.
4. in accordance with the method for claim 1, it is characterised in that: described water is containing the flyblown lake water of fly ovum or artificial vaccination, river, sewage ditch-water, the half congealed water of sewage, cesspool water or resident living sewage;
In wherein said 750 kilograms of cultivation base materials, flyblown quantity is 2.2～2.8 hundred million; Obtain fly larvae body long: 9-17mm, body weight 26-32mg.
5. the method described in claim 1 or 4, it is characterised in that: described fly is housefly.
6. in accordance with the method for claim 1, it is characterised in that: described coal is size-reduced, and granularity is less than or equal to 200 orders; In described coal, C content is more than 78%, and N content is 1.19%-1.86%.
7. in accordance with the method for claim 1, it is characterised in that: by weight, described proportioning raw materials is: somatomedin: culture medium: nutritional factors is 50-60:0.35-0.6:39.4-49.65; The temperature that described fly larvae cultivates in artificial cultivation tank is constant temperature, and temperature is 27-32 DEG C, and culturing time is 240-340 hour;In cultivation tank, relative humidity controls at 65-70%.
8. in accordance with the method for claim 1, it is characterized in that: described fly larvae cultivates in artificial cultivation tank, the bottom of tank body is provided with the discharge gate of valve, the upper end of tank body is provided with manhole and passage, manhole is provided with gland, is provided with the screen cloth preventing fly larvae from escaping in passage, takes a breath once at interval of the gland opening artificial cultivation tank for 24 hours in artificial cultivation tank, time of exchanging gas is 5 minutes, and scavenging period is avoided inside sunlight direct irradiation cultivation tank.
9. the method described in claim 1 or 8, it is characterised in that: described artificial cultivation tank is enamel, rubber liner, glass, plastics or stainless container;
Described reactor adopts one or more in microwave temperature-sensitive reactor, ultrasound reactor, infrared ray reactor.
10. in accordance with the method for claim 8, it is characterised in that: described artificial cultivation tank is cylindrical vessel, and container is high 4 meters, diameter 3 meters, passage diameter 100mm, and passage place is provided with 8 eye mesh screens preventing fly larvae from escaping.
CN201610208068.8A 2016-04-01 2016-04-01 Method for preparing green biodiesel by using artificially cultured base material Pending CN105670808A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
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