CN111676070B - Method for preparing biodiesel from kitchen waste - Google Patents
Method for preparing biodiesel from kitchen waste Download PDFInfo
- Publication number
- CN111676070B CN111676070B CN202010568765.0A CN202010568765A CN111676070B CN 111676070 B CN111676070 B CN 111676070B CN 202010568765 A CN202010568765 A CN 202010568765A CN 111676070 B CN111676070 B CN 111676070B
- Authority
- CN
- China
- Prior art keywords
- biodiesel
- kitchen waste
- temperature
- rectification
- water phase
- 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.)
- Active
Links
Classifications
-
- 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
- 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
-
- 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
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/54—Specific separation steps for separating fractions, components or impurities during preparation or upgrading of a fuel
- C10L2290/543—Distillation, fractionation or rectification for separating fractions, components or impurities during preparation or upgrading of a fuel
-
- 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)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention discloses a method for preparing biodiesel from kitchen waste, which comprises the following steps: step one, kitchen waste is subjected to oil phase, water phase and filter residue, alkaline methanol is added into the oil phase to obtain first reaction liquid, the first reaction liquid is mixed with a ZSM-5 molecular sieve to obtain second reaction liquid, and the second reaction liquid is subjected to centrifugal treatment to obtain upper-layer liquid and lower-layer precipitate; step two, mixing the lower-layer precipitate with the filter residue, introducing methanol vapor, collecting the evaporated gas for primary rectification, and collecting the tower bottom components of the primary rectification; and step three, heating the water phase to 110 ℃, keeping the temperature for 2 hours, mixing the water phase with the tower bottom components of the primary rectification, carrying out secondary rectification, collecting tower top components of the secondary rectification, uniformly mixing the tower top components with the upper layer liquid, and carrying out reduced pressure distillation to obtain the biodiesel. The kitchen waste is processed into oil phase, water phase and filter residue to be comprehensively processed, so that the biodiesel components contained in the oil phase, the water phase and the filter residue are fully obtained, and the yield of the biodiesel is improved.
Description
Technical Field
The invention relates to the technical field of biodiesel preparation, in particular to a method for preparing biodiesel from kitchen waste.
Background
Biodiesel has excellent environmental protection and reproducibility, and has great potential for replacing petroleum diesel. Currently, biodiesel refers to fatty acid methyl ester or ethyl ester formed by ester conversion of vegetable oil (such as rapeseed oil, soybean oil, peanut oil, corn oil, cottonseed oil, etc.), animal oil (such as fish oil, lard, beef tallow, mutton fat, etc.), waste oil or microbial oil with methanol or ethanol. The kitchen waste refers to waste generated in daily life and food processing, food service, unit catering and other activities of residents, and comprises abandoned vegetable leaves, leftovers, fruit peels, egg shells, tea leaves, bones and the like, and the main sources of the kitchen waste are household kitchens, restaurants, dining halls, markets and other industries related to food processing. 75% of the preparation cost of the biodiesel is the raw material cost, the high price is the main obstacle of commercialization of the biodiesel alternative fuel, the kitchen waste can be used as the raw material for preparing the biodiesel, the cost of the biodiesel is reduced, but the yield of the biodiesel prepared by utilizing the kitchen waste in the prior art is low.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
The invention also aims to provide a method for preparing biodiesel from kitchen waste, which comprises the steps of treating the kitchen waste into an oil phase, a water phase and filter residues, comprehensively treating the oil phase, the water phase and the filter residues, fully obtaining biodiesel components contained in the oil phase, the water phase and the filter residues, and improving the yield of the biodiesel.
To achieve these objects and other advantages in accordance with the present invention, there is provided a method for preparing biodiesel from kitchen waste, comprising the steps of:
step one, instantly sterilizing kitchen waste at 120 ℃, performing filter pressing and standing to obtain an oil phase, a water phase and filter residues, performing microwave heating on the oil phase to 130 ℃ for dehydration, adding alkaline methanol, heating to 55 ℃, stirring for 1h to obtain a first reaction liquid, uniformly mixing the first reaction liquid and a ZSM-5 molecular sieve according to the mass ratio of 100:3, performing gradient temperature rise to 120 ℃, keeping for 40min to obtain a second reaction liquid, and performing centrifugal treatment on the second reaction liquid to obtain an upper layer liquid and a lower layer precipitate, wherein the addition amount of the alkaline methanol is 3 times of the weight of the oil phase after dehydration;
step two, mixing the lower-layer precipitate and the filter residue in the step one, carrying out vacuum dehydration treatment, then carrying out microwave heating to 290 ℃, introducing methanol vapor while stirring, wherein the introduction amount of the methanol vapor is 15L/min, collecting evaporated gas, carrying out primary rectification on the collected gas, and collecting tower bottom components of the primary rectification, wherein the tower top temperature of the primary rectification is 85 ℃ and the tower bottom temperature is 20 ℃;
step three, heating the water phase in the step one to 110 ℃ and keeping the temperature for 2 hours, then mixing the water phase with the tower bottom component of the primary rectification in the step two for secondary rectification, collecting the tower top component of the secondary rectification, uniformly mixing the tower top component with the supernatant obtained in the step one, and carrying out reduced pressure distillation to obtain the biodiesel, wherein the tower top temperature of the secondary rectification is 370 ℃ and the tower bottom temperature is 130 ℃.
Preferably, the biodiesel prepared in the third step is subjected to two decolorization treatments in sequence, wherein a decolorizing agent accounting for 8% of the weight of oil is added in the first decolorization treatment, the temperature is kept at 90 ℃, the stirring is carried out for 30min, the decolorizing agent is removed by vacuum filtration, a decolorizing agent accounting for 5% of the weight of oil is added in the second decolorization treatment, the temperature is kept at 30 ℃, the stirring is carried out for 40min, and the decolorizing agent is removed by vacuum filtration, wherein the decolorizing agent is prepared by mixing zeolite powder, coconut shell activated carbon and attapulgite according to the mass ratio of 1:3: 5.
Preferably, the centrifugation treatment in the first step is carried out at the rotating speed of 4500r/min for 15 min.
Preferably, the basic methanol contains 1 wt% sodium hydroxide and 35 wt% methanol.
Preferably, the gradient temperature rise means a temperature gradient of 20 ° for 5min at 20 ° higher per liter.
Preferably, the vacuum degree of vacuum dehydration in the second step is-0.08-0.065 MPa.
Preferably, the pressure of the reduced pressure distillation in the third step is 1.0 kPa.
The invention at least comprises the following beneficial effects:
the kitchen waste is processed into the oil phase, the water phase and the filter residue, the oil phase, the water phase and the filter residue are comprehensively processed, the biodiesel components contained in the oil phase, the water phase and the filter residue are fully obtained, and the yield of the biodiesel is improved.
According to the invention, the oil phase sequentially reacts with alkaline methanol and a ZSM-5 molecular sieve, so that the catalytic cracking performance of reactants is improved, and the conversion rate of grease is improved; further carrying out methanol vapor treatment on the lower-layer precipitate and filter residue in the oil phase to carry out ester exchange reaction, removing methanol through primary rectification, and simultaneously separating out a crude product containing the biodiesel at the bottom of the tower; the water phase is heated to take away water, oil in the water phase is retained, and the oil and the crude product of the primary rectification are mixed for secondary rectification, the temperature of the top and the bottom of the tower of the primary rectification and the secondary rectification is reasonably controlled during the secondary rectification, and the required biodiesel is separated from the top of the tower of the secondary rectification. The biodiesel prepared by the invention has good ignition performance and more complete combustion.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Detailed Description
The present invention is further described in detail below with reference to examples so that those skilled in the art can practice the invention with reference to the description.
< example 1>
The invention provides a method for preparing biodiesel from kitchen waste, which comprises the following steps:
step one, instantly sterilizing kitchen waste at a high temperature of 120 ℃, performing filter pressing and standing to obtain an oil phase, a water phase and filter residue, performing solid-liquid separation after filter pressing to obtain a liquid phase and the filter residue, standing and layering the liquid phase to obtain the oil phase and the water phase, performing microwave heating on the oil phase to 130 ℃ for dehydration, adding alkaline methanol, heating to 55 ℃, stirring for 1h to obtain a first reaction liquid, uniformly mixing the first reaction liquid and a ZSM-5 molecular sieve according to a mass ratio of 100:3, performing gradient temperature rise to 120 ℃, keeping for 40min to obtain a second reaction liquid, and performing centrifugal treatment on the second reaction liquid to obtain an upper layer liquid and a lower layer precipitate, wherein the addition amount of the alkaline methanol is 3 times of the weight of the dehydrated oil phase;
step two, mixing the lower-layer precipitate and the filter residue in the step one, carrying out vacuum dehydration treatment, then carrying out microwave heating to 290 ℃, introducing methanol vapor while stirring, wherein the introduction amount of the methanol vapor is 15L/min, collecting evaporated gas, carrying out primary rectification on the collected gas, and collecting tower bottom components of the primary rectification, wherein the tower top temperature of the primary rectification is 85 ℃ and the tower bottom temperature is 20 ℃;
step three, heating the water phase in the step one to 110 ℃ and keeping the temperature for 2 hours, then mixing the water phase with the tower bottom component of the primary rectification in the step two for secondary rectification, collecting the tower top component of the secondary rectification, uniformly mixing the tower top component with the supernatant obtained in the step one, and carrying out reduced pressure distillation to obtain the biodiesel, wherein the tower top temperature of the secondary rectification is 370 ℃ and the tower bottom temperature is 130 ℃.
And C, sequentially carrying out two times of decolorization treatment on the biodiesel prepared in the step three, adding a decolorizing agent accounting for 8 percent of the weight of the oil in the first decolorization treatment, keeping the temperature at 90 ℃, stirring for 30min, carrying out vacuum filtration to remove the decolorizing agent, adding a decolorizing agent accounting for 5 percent of the weight of the oil in the second decolorization treatment, keeping the temperature at 30 ℃, stirring for 40min, and carrying out vacuum filtration to remove the decolorizing agent, wherein the decolorizing agent is prepared by mixing zeolite powder, coconut shell activated carbon and attapulgite according to the mass ratio of 1:3: 5.
In the step one, the centrifugal treatment is carried out at the rotating speed of 4500r/min and the centrifugal time of 15 min.
The alkaline methanol contained 1 wt% of sodium hydroxide and 35 wt% of methanol.
Gradient temperature rise means that 20 degrees is used as a temperature gradient, and the temperature is kept for 5min at 20 degrees per liter.
And in the second step, the vacuum degree of vacuum dehydration is-0.08-0.065 MPa.
The pressure of the reduced pressure distillation in the third step was 1.0 kPa.
< comparative example 1>
The first reaction solution in example 1 was directly centrifuged to obtain an upper layer solution and a lower layer precipitate, and the rest of the procedure and parameters were the same as in example 1.
< comparative example 2>
And (3) independently carrying out primary rectification on the filter residue in the example 1, and collecting the tower bottom components of the primary rectification, wherein the rest processes and parameters are the same as those in the example 1.
< comparative example 3>
The upper layer liquid obtained from the second reaction liquid in example 1 was directly subjected to vacuum distillation to prepare biodiesel, and the rest of the process and parameters were the same as those in example 1.
Examples and comparative examples yields with respect to the produced biodiesel are shown in table 1 below.
TABLE 1
| Examples1 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Yield of | 91.30％ | 86.60％ | 89.70％ | 87.10％ |
As can be seen from Table 1, by comparing the example 1 with the comparative example 1, the yield of the finally prepared biodiesel is directly influenced after the oil phase is treated by the alkaline methanol and the ZSM-5 molecular sieve, and in the invention, the oil phase sequentially reacts with the alkaline methanol and the ZSM-5 molecular sieve, so that the catalytic cracking performance of reactants is improved, the conversion rate of grease is improved, and the yield of the finally prepared biodiesel is improved by 4.7%. Tests show that after the oil phase in example 1 is treated by alkaline methanol and a ZSM-5 molecular sieve, the supernatant obtained by centrifugal layering of the second reaction solution is the crude oil for preparing the biodiesel, and the conversion rate reaches 89.4%; in the comparative example 1, the first reaction liquid obtained after the oil phase only reacts with the alkaline methanol is the crude oil for preparing the biodiesel, and the conversion rate is only 80.5 percent.
Example 1 the lower layer precipitate in the oil phase together with the residue was once rectified with methanol vapor, the esterification reaction continued during the rectification, and the esterification reaction product further cracked, and along with the rectification, the 100% residue carbon of the crude product of biodiesel separated at the bottom of the column was only 0.11%, while the 100% residue carbon of the crude product of biodiesel obtained by only once rectifying the residue in comparative example 2 was 0.48%, indicating that the crude product of biodiesel prepared in example 1 had good low temperature fluidity, and provided a good transition material for the preparation of biodiesel.
Through comparison of the example 1 with the comparative examples 2 and 3, the lower-layer precipitate in the oil phase and the filter residue in the kitchen waste in the example 1 are rich in components which can be used for preparing the biodiesel, the lower-layer precipitate and the filter residue in the oil phase are further subjected to an ester exchange reaction through methanol vapor treatment, methanol is removed through primary rectification, a crude product containing the biodiesel is separated from the bottom of the tower, and the weight of the crude product of the biodiesel obtained through the primary rectification in the example 1 is 1.34 times that of the crude product of the biodiesel obtained through the primary rectification of the filter residue in the comparative example 2. In the embodiment 1, the water phase is heated to remove water, the grease in the water phase is retained, and is mixed with the primary rectified crude product for secondary rectification, the required biodiesel is separated from the tower top, and the yield of the biodiesel is respectively increased by 1.6% and 4.2% compared with the biodiesel in a comparative example 2 and a comparative example 3.
The performance tests of the biodiesel prepared by the examples and comparative examples are shown in the following table 2.
TABLE 2
As can be seen from Table 2, the flash point of the biodiesel in example 1 reaches 137 ℃, the cetane number is high, the sulfur content is relatively low, and the sulfated ash content is also low, which shows that the biodiesel obtained by the preparation method of the invention has the advantages of low methanol content, good combustion performance, excellent ignition performance, and is an excellent environment-friendly clean energy source.
While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, so that the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.
Claims (5)
1. The method for preparing the biodiesel by the kitchen waste is characterized by comprising the following steps:
step one, instantly sterilizing kitchen waste at 120 ℃, performing filter pressing and standing to obtain an oil phase, a water phase and filter residues, performing microwave heating on the oil phase to 130 ℃ for dehydration, adding alkaline methanol, wherein the alkaline methanol contains 1 wt% of sodium hydroxide and 35 wt% of methanol, heating to 55 ℃, stirring for 1h to obtain a first reaction liquid, uniformly mixing the first reaction liquid and a ZSM-5 molecular sieve according to the mass ratio of 100:3, performing gradient heating to 120 ℃, keeping for 40min to obtain a second reaction liquid, performing gradient heating by taking 20 ℃ as a temperature gradient, keeping the temperature at 20 ℃ per liter for 5min, and performing centrifugal treatment on the second reaction liquid to obtain an upper layer liquid and a lower layer precipitate, wherein the addition amount of the alkaline methanol is 3 times of the weight of the oil phase after dehydration;
step two, mixing the lower-layer precipitate and the filter residue in the step one, carrying out vacuum dehydration treatment, then carrying out microwave heating to 290 ℃, introducing methanol vapor while stirring, wherein the introduction amount of the methanol vapor is 15L/min, collecting evaporated gas, carrying out primary rectification on the collected gas, and collecting tower bottom components of the primary rectification, wherein the tower top temperature of the primary rectification is 85 ℃ and the tower bottom temperature is 20 ℃;
step three, heating the water phase in the step one to 110 ℃ and keeping the temperature for 2 hours, then mixing the water phase with the tower bottom component of the primary rectification in the step two for secondary rectification, collecting the tower top component of the secondary rectification, uniformly mixing the tower top component with the supernatant obtained in the step one, and carrying out reduced pressure distillation to obtain the biodiesel, wherein the tower top temperature of the secondary rectification is 370 ℃ and the tower bottom temperature is 130 ℃.
2. The method for preparing biodiesel from kitchen waste according to claim 1, wherein the biodiesel prepared in the third step is subjected to two decolorization treatments in sequence, wherein a decolorizing agent accounting for 8% of the weight of oil is added in the first decolorization treatment, the temperature is kept at 90 ℃, the stirring is carried out for 30min, the decolorizing agent is removed by vacuum filtration, a decolorizing agent accounting for 5% of the weight of oil is added in the second decolorization treatment, the temperature is kept at 30 ℃, the stirring is carried out for 40min, and the decolorizing agent is removed by vacuum filtration, wherein the decolorizing agent is prepared by mixing zeolite powder, coconut shell activated carbon and attapulgite according to the mass ratio of 1:3: 5.
3. The method for preparing biodiesel by using kitchen waste according to claim 1, wherein the centrifugation treatment in the first step is carried out at a rotating speed of 4500r/min for 15 min.
4. The method for preparing biodiesel from kitchen waste according to claim 1, wherein the vacuum degree of vacuum dehydration in the second step is-0.08-0.065 MPa.
5. The method for preparing biodiesel by using the kitchen waste according to claim 1, wherein the pressure of the reduced pressure distillation in the third step is 1.0 kPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010568765.0A CN111676070B (en) | 2020-06-19 | 2020-06-19 | Method for preparing biodiesel from kitchen waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010568765.0A CN111676070B (en) | 2020-06-19 | 2020-06-19 | Method for preparing biodiesel from kitchen waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111676070A CN111676070A (en) | 2020-09-18 |
| CN111676070B true CN111676070B (en) | 2021-03-30 |
Family
ID=72436717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010568765.0A Active CN111676070B (en) | 2020-06-19 | 2020-06-19 | Method for preparing biodiesel from kitchen waste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111676070B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005350630A (en) * | 2004-06-14 | 2005-12-22 | Electric Power Dev Co Ltd | Technique for producing low-exhaust type biodiesel fuel |
| CN101148599A (en) * | 2007-10-06 | 2008-03-26 | 南昌大学 | Method for preparing biological diesel oil from waste animals and plants grease with high acid value |
| CN101358140A (en) * | 2007-08-02 | 2009-02-04 | 姜皓 | Synthetic process of bio diesel oil and equipment |
| CN102371266A (en) * | 2010-08-23 | 2012-03-14 | 青岛福瑞斯生物能源科技开发有限公司 | Resource utilization method of kitchen waste |
| CN103480629A (en) * | 2013-09-11 | 2014-01-01 | 同济大学 | Microwave hydrothermal deoiling method for food waste solid-phase |
| CN104560226A (en) * | 2014-11-04 | 2015-04-29 | 华文蔚 | Preparation method of biodiesel |
| CN105505557A (en) * | 2015-11-25 | 2016-04-20 | 中国科学院广州能源研究所 | Apparatus for continuously extracting and separating kitchen waste grease |
| CN107892995A (en) * | 2017-11-27 | 2018-04-10 | 四川蓝邦新能源科技有限公司 | A kind of method that biodiesel is produced using waste oil in kitchen waste |
| CN108372180A (en) * | 2018-02-05 | 2018-08-07 | 宜兴市欧亚华都环境工程有限公司 | A kind of processing method of changing food waste into resources |
| CN110055138A (en) * | 2019-04-30 | 2019-07-26 | 广州市广环环保科技有限公司 | A method of utilizing kitchen garbage preparing biological diesel oil and glycerol |
-
2020
- 2020-06-19 CN CN202010568765.0A patent/CN111676070B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005350630A (en) * | 2004-06-14 | 2005-12-22 | Electric Power Dev Co Ltd | Technique for producing low-exhaust type biodiesel fuel |
| CN101358140A (en) * | 2007-08-02 | 2009-02-04 | 姜皓 | Synthetic process of bio diesel oil and equipment |
| CN101148599A (en) * | 2007-10-06 | 2008-03-26 | 南昌大学 | Method for preparing biological diesel oil from waste animals and plants grease with high acid value |
| CN102371266A (en) * | 2010-08-23 | 2012-03-14 | 青岛福瑞斯生物能源科技开发有限公司 | Resource utilization method of kitchen waste |
| CN103480629A (en) * | 2013-09-11 | 2014-01-01 | 同济大学 | Microwave hydrothermal deoiling method for food waste solid-phase |
| CN104560226A (en) * | 2014-11-04 | 2015-04-29 | 华文蔚 | Preparation method of biodiesel |
| CN105505557A (en) * | 2015-11-25 | 2016-04-20 | 中国科学院广州能源研究所 | Apparatus for continuously extracting and separating kitchen waste grease |
| CN107892995A (en) * | 2017-11-27 | 2018-04-10 | 四川蓝邦新能源科技有限公司 | A kind of method that biodiesel is produced using waste oil in kitchen waste |
| CN108372180A (en) * | 2018-02-05 | 2018-08-07 | 宜兴市欧亚华都环境工程有限公司 | A kind of processing method of changing food waste into resources |
| CN110055138A (en) * | 2019-04-30 | 2019-07-26 | 广州市广环环保科技有限公司 | A method of utilizing kitchen garbage preparing biological diesel oil and glycerol |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111676070A (en) | 2020-09-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7857872B2 (en) | Co-production of biodiesel and an enriched food product from distillers grains | |
| WO2008122029A1 (en) | Simultaneous esterification and alcohol ysis/hydrolysis of oil-containing materials with cellulosic and peptidic content | |
| WO2008120223A2 (en) | An integrated process for the preparation of fatty acid methyl ester (biodiesel) | |
| CN102311883A (en) | Method for preparing high-purity biodiesel | |
| CN1741982A (en) | Method and device for producing biodiesel | |
| CN105219813B (en) | A kind of method that enzyme process prepares bis- oleic acid -2- palmitic acid of 1,3-, three ester in subcritical system | |
| CN102021082A (en) | Method for preparing fatty acid methyl ester and glycerol from kitchen waste oil by utilizing acid-base two-step method | |
| US20100087670A1 (en) | Process for preparing a bio-diesel | |
| CN101691521A (en) | Decoloration technology of biological diesel oil | |
| Mata et al. | Valorization of waste frying oils and animal fats for biodiesel production | |
| CN102876465A (en) | Method for preparing biodiesel by using kitchen waste oil | |
| CN102295961B (en) | Lubricity additive of low-sulfur diesel oil and preparation method thereof | |
| CN105001297A (en) | Method for extracting phytosterol from plant pitch | |
| WO2018121408A1 (en) | Method for co-producing and processing biological energy with oil crops | |
| CN111718391B (en) | Residual oil treatment method for recovering sterol | |
| CN1844319A (en) | Process for preparing bio- diesel oil by conversion of subcritical - supercritical fluid | |
| CN111676070B (en) | Method for preparing biodiesel from kitchen waste | |
| CN105001922B (en) | The preparation method of biodiesel | |
| CN106190277B (en) | A kind of method that catalytic cracking prepares biomass fuel | |
| CN107446631B (en) | Environment-friendly biological liquid fuel and preparation method thereof | |
| CN110511823A (en) | A method of second generation biodiesel is prepared with food processing waste oil | |
| CN101104810A (en) | Preparation method for biological diesel oil | |
| CN102492561A (en) | Method for preparing bio-diesel by using fresh rice bran | |
| CN106107847B (en) | Peanut kernel whole particle degreasing process | |
| CN112159727B (en) | Esterification method of waste oil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |