CN101434850A - Environment-protective biodiesel preparation - Google Patents
Environment-protective biodiesel preparation Download PDFInfo
- Publication number
- CN101434850A CN101434850A CNA2008101115543A CN200810111554A CN101434850A CN 101434850 A CN101434850 A CN 101434850A CN A2008101115543 A CNA2008101115543 A CN A2008101115543A CN 200810111554 A CN200810111554 A CN 200810111554A CN 101434850 A CN101434850 A CN 101434850A
- Authority
- CN
- China
- Prior art keywords
- oil
- reaction
- magnesium
- filter
- water
- 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.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P30/00—Technologies relating to oil refining and petrochemical industry
- Y02P30/20—Technologies relating to oil refining and petrochemical industry using bio-feedstock
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
Landscapes
- Liquid Carbonaceous Fuels (AREA)
- Fats And Perfumes (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
The invention provides a preparation method for preparing environmental-protection bio-diesel, which is one of the preparation methods of bio-diesel. In the prior art, when the bio-diesel is prepared by waste oil and waste dining oil, sulphuric acid is used as a catalyst, the sulphuric acid slag is generated after the reaction and when the waste oil and the waste dining oil are used for pre-disposal, sulphuric acid slag solution generated in pickling process can cause pollution to the environment. The preparation method aims at preparing the bio-diesel and sending the generated waste sulphuric acid slag and light-burned magnesia (magnesia) into a stainless steel stirring kettle simultaneously for carrying out stirring, thus achieving sufficient reaction and generating the magnesium sulphate. The flow sheet for the disposal process of the sulphuric acid slag solution is shown in figure 1.
Description
Environment-protective biodiesel belongs to a kind of of preparation method of biological diesel oil.
In existing technology, when manufacturing biofuel,, therefore when producing, must carry out pre-treatment (through overpickling, alkali cleaning, filtration) unwatering and impurity to sewer oil and discarded food and drink oil because acidity is bigger with sewer oil and discarded food and drink oil.Shown in pretreated oil (hereinafter to be referred as stock oil) technical process Fig. 3.
Purpose of the present invention is with acid sludge and magnesia unslacked (magnesium oxide) powder except that the system biofuel, carries out environmental protection treatment and sends in the stainless steel stirring tank, makes waste sulphuric acid residue and magnesia unslacked (magnesium oxide) powder, feeds steam, reaches abundant reaction and generates sal epsom.The sulfate slag liquor treating process as shown in Figure 1.Reaction formula
Through washing, cross and filter out impurity again, the magnesium sulfate solution with after filtering carries out vacuum-drying and makes crystalline sulfuric acid magnesium.
The present invention carries out pre-treatment earlier with sewer oil and discarded food and drink oil, pump into the tapered still of pickling, be heated to 80 ℃ and begin to stir then, slowly inject the vitriol oil then, injection rate is 2% of an oil mass, stirs 30min, stop heating and stirring then, static 2 hours, emit lower floor's acid sludge in the stainless steel stirring tank with magnesia unslacked (magnesium oxide) powder, add-on is equal to the acid sludge amount.Begin to stir, feed steam, make still internal reaction thing fully react generation sal epsom, 20% water of the reaction-ure mixture that reinjects with the sal epsom dissolving, filters out magnesium sulfate solution through filter, sends into vacuum-drying and obtains crystalline sulfuric acid magnesium.
In the taper still, inject the hydrogen peroxide (H of raw material oil mass 4% again
2O
2), concentration is 30%, stirs while adding, and temperature remains on 80 ℃, stirs 40min, stops heating and stirring then, and static 30min emits lower floor's sewage, uses 3% concentration hydrogen sodium oxide (N again
2OH) aqueous solution, injection rate is 20% of an oil mass, stirs while adding, and the time is 10min, stops then stirring, and static 10min emits lower layer of water, surplus stock oil in the taper still is filtered through filter again, makes the used stock oil of biofuel.
Stock oil is pumped in the biofuel reactor, and adding methyl alcohol (concentration 99.9%), the methyl alcohol add-on is 14% of an oil mass, be warmed up to 80 ℃ and begin to stir then, 2% vitriol oil (concentration is 98%) that slowly adds oil mass, catalyzer keeps 80 ℃ of temperature, and pressure remains on 0.2Mpa-0.4Mpa, reaction times is 3h4h, stops then heating up and stirring.The biodiesel processes schema as shown in Figure 3, Fig. 1 is a sulfate slag liquor treating process schema; Fig. 2 is sewer oil and discarded food and drink oil pretreatment technology schema; Fig. 3 is an environment friendly biological oil process flow sheet.
Reaction formula:
Open the distillation valve, do not participate in the methanol vapor of reaction, enter into methyl alcohol storage cylinder (reclaiming stand-by) by distillation tower, water cooler, branch gold-plating cylinder.
With pump the reactant in the biofuel reactor is pumped in the taper slurry tank then, static 2h emits sulfate slag liquid, be sent to stainless steel stirring tank and equivalent magnesia unslacked (magnesium oxide) powder, by steam and begin stirring reaction and generate sal epsom, the water of reaction-ure mixture 20% reinjects, with the sal epsom dissolving, filter out magnesium sulfate solution through filter, send into vacuum-drying and obtain crystalline sulfuric acid magnesium.
Inject 80 ℃ of warm water again in taper sedimentation still, water injection rate is 12% of an oil mass, and marginal not is gone into the limit and stirred 10min, and static 1h emits raw glycerine water and enters glycerine flash distillation still and be warmed to 105 ℃ and vacuumize, and makes glycerine.
In the taper still, inject the hydrogen peroxide (H of raw material oil mass 4% again
2O
2) concentration is 3%, the flavor that decolours stirs while adding, and temperature keeps about 80 ℃, stirs 40min, and static then 30min puts down a layer sewage.
Emit taper still internal reaction thing and enter filter filtration obtain fatty acid methyl esters-biofuel.
Embodiment: 860 kilograms and 130 kilograms methyl alcohol of the stock oil that pre-treatment is good (concentration 99.9%) are pumped in the biofuel reactor, are warmed up to 80 ℃ and begin to stir, and slowly add the vitriol oil (H of 2% (17.2 kilograms) of oil mass
2SO
4) concentration is 98%, temperature keeps 80 ℃, pressure is at 0.2MPa-0.4MPa, reaction times is 3h-4h, stop then heating up and stirring, open the distillation valve, the methanol vapor that participates in reaction through distillation tower, water cooler, be cooled to methanol liquid and enter fractionating tank to hold-up vessel (reclaiming stand-by).
And then the reactant in the biofuel reactor is pumped in the taper slurry tank with pump, static 2h, emit following sulfate slag liquid and deliver in the stainless steel stirring tank magnesia unslacked (magnesium oxide) powder with equivalent, stir by steam and make still internal reaction thing reach abundant reaction to generate sal epsom.Inject reaction-ure mixture 20% water then, sal epsom is dissolved in the water, filter out magnesium sulfate solution through filter and send into and make crystalline sulfuric acid magnesium in the Vacuumdrier.
Inject 80 ℃ of warm water again in the taper slurry tank, water injection rate is an oil mass 12%, and marginal not is gone into the limit and stirred 10min, and static 1h emits the lower coarse glycerol liquor, sends in the glycerine flash distillation still, is warmed to 105 ℃ and vacuumizes and obtain concentrating glycerine.
Reactant in the tapered slurry tank of biofuel is all emitted, filter obtain fatty acid methyl alcohol---biofuel through filter.
Claims (5)
1, a kind of environment-protective biodiesel preparation method, its key step is:
A), sewer oil and discarded food and drink oil are carried out pre-treatment, carry out pickling (can produce sulfate slag liquid), alkali cleaning, filter and make the needed stock oil of biofuel.
B), with raw material and methyl alcohol (CH
3OH) and the catalyzer vitriol oil (H
2O
4) join in the biofuel reactor, carry out esterification, generate fatty acid methyl ester, can produce sulfate slag liquid after the reaction simultaneously, and not participate in the methyl alcohol of reaction, by distillation tower, water cooler, recycling.
The raw glycerine water of c), emitting in the sedimentation still enters and carries out drying in the flash distillation still and make concentrated glycerine.
D) reacted fatty acid methyl ester filters through filter and makes fatty acid methyl ester---biofuel.
2, sulfate slag liquor treating process step is according to claim 1:
Send in the stainless steel stirring tank magnesia unslacked (magnesium oxide) powder of sulfate slag liquid and equivalent by steam and begin to stir, reach abundant reaction, reaction generates sal epsom, the water of reaction-ure mixture 20% reinjects, sal epsom is dissolved, filter out magnesium sulfate solution through filter, send into vacuum-drying and obtain crystalline sulfuric acid magnesium.
3, pressing claim 1 and 2 described sulfate slag liquid and magnesia unslacked (magnesium oxide) powder is the 1:1 proportioning by weight.
4, be sulfate slag liquid and magnesia unslacked (magnesium oxide) powder total amount 20% sal epsom that is dissolved in water by the described water injection rate of claim 2, generate Adlerika.
5, described by claim 2 and 4, magnesium sulfate solution is sent into Vacuumdrier carry out drying, make crystalline sulfuric acid magnesium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101115543A CN101434850A (en) | 2008-06-06 | 2008-06-06 | Environment-protective biodiesel preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101115543A CN101434850A (en) | 2008-06-06 | 2008-06-06 | Environment-protective biodiesel preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101434850A true CN101434850A (en) | 2009-05-20 |
Family
ID=40709490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101115543A Pending CN101434850A (en) | 2008-06-06 | 2008-06-06 | Environment-protective biodiesel preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101434850A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798517A (en) * | 2010-03-30 | 2010-08-11 | 郑辉 | Method for preparing biodiesel by cracking composite catalyst |
| CN104232141A (en) * | 2014-09-28 | 2014-12-24 | 深圳市日东生物能源有限公司 | Method for preparing biodiesel from illegal cooking oil, acid oil and waste animal and plant grease |
| CN113337337A (en) * | 2021-03-31 | 2021-09-03 | 武汉工程大学 | Regeneration treatment method of waste oil |
-
2008
- 2008-06-06 CN CNA2008101115543A patent/CN101434850A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798517A (en) * | 2010-03-30 | 2010-08-11 | 郑辉 | Method for preparing biodiesel by cracking composite catalyst |
| CN104232141A (en) * | 2014-09-28 | 2014-12-24 | 深圳市日东生物能源有限公司 | Method for preparing biodiesel from illegal cooking oil, acid oil and waste animal and plant grease |
| CN104232141B (en) * | 2014-09-28 | 2015-12-09 | 深圳市日东生物能源有限公司 | A kind of method of sewer oil, acidification oil, preparing biological diesel oil from waste animals and plants grease |
| CN113337337A (en) * | 2021-03-31 | 2021-09-03 | 武汉工程大学 | Regeneration treatment method of waste oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101906355B (en) | Method for preparing biodiesel by utilizing food waste recycling oil | |
| CN102417285B (en) | Continuous pyrohydrolysis device and method for high-solid-content biological sludge | |
| CN100500810C (en) | Process for preparing biodiesel oil | |
| CN101880602A (en) | Method for preparing biodiesel by using high acid value oil | |
| CN105143115A (en) | Wet oxidation of biomass | |
| CN101245252B (en) | Method for producing biodiesel by using waste oil | |
| CN101434850A (en) | Environment-protective biodiesel preparation | |
| CN111440134B (en) | Method and device for coproducing furfural and levulinic acid through biomass fractional hydrolysis | |
| CN102041177B (en) | Method for preparing biodiesel | |
| CN100355860C (en) | Process for preparing bio- diesel oil by two-step catalysis of acid-containing fat | |
| CN101157868B (en) | Method for producing low freezing point biodiesel by employing waste animal and vegetable oil coupling and special device | |
| CN105502842A (en) | Wastewater Fenton oxidation-biological combined treatment method and device capable of recycling sludge | |
| CN103087788B (en) | Method for preparing biodiesel by using high-acid value oil | |
| CN100365100C (en) | Method of preparing biological diesel oil by methanol critical low alkali process | |
| CN114410383B (en) | Method for preparing biodiesel by using waste grease | |
| CN103012065B (en) | Method for preparing high-concentration polyhydric alcohol by circularly hydrolyzing and hydrogenating biomass | |
| CN106190591A (en) | The esterification of a kind of biodiesel, ester exchange reaction method | |
| CN102471053B (en) | Method and facility for converting carbon monoxide and water into carbon dioxide and hydrogen, with the removal of at least one product gas | |
| CN108727308A (en) | A kind of technique that the different monooctyl ester of epoxyfatty acid is prepared based on biodiesel | |
| JP5358351B2 (en) | Biodiesel fuel production equipment | |
| CN113846128A (en) | Process flow for preparing biodiesel by liquid enzyme method | |
| CN102229864B (en) | Method for producing biodiesel with hogwash oil of high acid value | |
| KR101565709B1 (en) | Method for biodiesel, biogas and solid fuel from wastewater sludge and equipment comprising the same | |
| CN105087660A (en) | Closed-loop circulating production method for co-production of straw ethanol and methane | |
| CN102182095B (en) | Method for recycling ethanol pulping waste liquor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Wenxiang Document name: Notification that Application Deemed not to be Proposed |
|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090520 |