CN100500809C - Pre-treating process for preparing biological diesel oil with waste animal and vegetable oil - Google Patents
Pre-treating process for preparing biological diesel oil with waste animal and vegetable oil Download PDFInfo
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- CN100500809C CN100500809C CNB2006101167163A CN200610116716A CN100500809C CN 100500809 C CN100500809 C CN 100500809C CN B2006101167163 A CNB2006101167163 A CN B2006101167163A CN 200610116716 A CN200610116716 A CN 200610116716A CN 100500809 C CN100500809 C CN 100500809C
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- Prior art keywords
- oil
- diesel oil
- treating process
- preparing biological
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- 241001465754 Metazoa Species 0.000 title claims abstract description 21
- 239000002699 waste material Substances 0.000 title claims abstract description 21
- 239000002283 diesel fuel Substances 0.000 title claims abstract description 13
- 239000010775 animal oil Substances 0.000 title abstract description 10
- 235000015112 vegetable and seed oil Nutrition 0.000 title abstract description 10
- 239000008158 vegetable oil Substances 0.000 title abstract description 10
- 238000004519 manufacturing process Methods 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000005516 engineering process Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 238000001704 evaporation Methods 0.000 claims abstract description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 5
- 229930195729 fatty acid Natural products 0.000 claims abstract description 5
- 239000000194 fatty acid Substances 0.000 claims abstract description 5
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 5
- 150000003839 salts Chemical class 0.000 claims abstract description 5
- 238000001291 vacuum drying Methods 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims description 26
- 239000004519 grease Substances 0.000 claims description 13
- 150000002632 lipids Chemical class 0.000 claims description 13
- 238000004821 distillation Methods 0.000 claims description 10
- 125000005908 glyceryl ester group Chemical group 0.000 claims description 10
- 230000008020 evaporation Effects 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 4
- 239000002075 main ingredient Substances 0.000 claims description 4
- 238000009877 rendering Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000009834 vaporization Methods 0.000 claims description 2
- 230000008016 vaporization Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 16
- 235000019198 oils Nutrition 0.000 abstract description 16
- 125000005456 glyceride group Chemical group 0.000 abstract description 2
- 230000036571 hydration Effects 0.000 abstract 1
- 238000006703 hydration reaction Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 238000007670 refining Methods 0.000 abstract 1
- 238000005185 salting out Methods 0.000 abstract 1
- 230000032050 esterification Effects 0.000 description 12
- 238000005886 esterification reaction Methods 0.000 description 12
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 8
- 239000002551 biofuel Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 235000011187 glycerol Nutrition 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 150000004702 methyl esters Chemical class 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000005809 transesterification reaction Methods 0.000 description 3
- 235000019387 fatty acid methyl ester Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 239000003225 biodiesel Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 238000010931 ester hydrolysis Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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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
-
- 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
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- Fats And Perfumes (AREA)
Abstract
The present invention is pre-treating process of waste animal and vegetable oil for preparing biological diesel oil, and features that the technological process includes the following steps: clarifying the material oil in a clarifying tank; pumping the clarified oil into oil refining tank; adding water, salt or sulfuric acid for hydration, salting out or aciding out; stilling to layer; taking the upper layer of oil phase to vacuum drier for vacuum drying; filtering; and vacuum evaporating and/or distilling to obtain product with fatty acid and glyceride as two main components. Compared with available technology, the present invention has the advantages of simple technological process, low cost, low power consumption, high product purity, etc.
Description
[technical field]
What the present invention relates to is the preconditioning technique field of waste animal and vegetable oil, specifically a kind of pre-treating process of preparing biological diesel oil from waste animals and plants grease.
[technical background]
As everyone knows, existing pre-processing device to waste animal and vegetable oil mainly is made of settling tank, filter plant and separating device, method commonly used in the technology has: 1, precipitation, oil skimming operation, generally put into settling tank with a constant volume, place a couple of days, skim the oiliness material from liquid level again; 2, filter, remove miscellaneous operation, general owing at present preparation biofuel pretreatment technology is not also caused enough attention, the research report is few through carrying out filter operation after the dehydration, and the oil product kind that relates to is single, so technology is simple, coarse; 3, hydrolysis operation is separated waste animal and vegetable oil usually through highly pressured hydrolysis, middle setting-out.Use the glyceryl ester hydrolysis to generate the mixture of croude fatty acids and glycerol liquor.Separate again through layering croude fatty acids is obtained the higher AV of purity through distillation procedure 180 croude fatty acids carries out the esterification technique operation again.
Said apparatus and method can only be removed solid impurity, reduce the moisture of raw material abendoned oil.But often can not remove and the separation of organic substances component.Carry out sedimentation, oil skimming to the preliminary treatment of solid mechanical impurity as waste animal and vegetable oil is adopted, dewatering removes moisture content again, enters esterification technique at last.Since only adopt simple process operation, to the complex component of raw material waste animal and vegetable oil, and the difference of the physico-chemical property of following, will produce very big influence to adopting esterification and ester exchange process.Can not satisfy the requirement of stably manufactured and quality product.As waste animal and vegetable oil is adopted be hydrolyzed isolate subnatant water and glycerine after, distill again, obtain lipid acid then, carry out esterification at last again, make biofuel (fatty acid methyl ester).This method major defect is that operation is many, and facility investment is big, and especially energy expenditure is big; Hydrolysis time is long; Glycerol liquor concentration is low, utilizes difficulty.
[summary of the invention]
The object of the present invention is to provide a kind of technology simple, can be widely used in the pretreatment technology of the preparation biofuel of different sorts waste animal and vegetable oil.
For achieving the above object, design a kind of pre-treating process of preparing biological diesel oil from waste animals and plants grease, processing step is: pour stock oil at oil-filtering box, after pump enters rendering tank, adding entry or salt or sulfuric acid carries out aquation, saltouts or acid out, standing demix, remove subnatant, upper oil phase is sent into vacuum drier, pass through filter then, filter the back and under high vacuum, evaporate, distill or evaporate and distill combination process, thereby obtain lipid acid and two kinds of main ingredients of glyceryl ester, and enter esterification technique at last respectively.
Aquation, saltout and the technical requirements and the technical parameter of acid out technology: the amount of water during aquation is the heavy 5%-8% of material; Can add its add-on of solid salt when saltouing is the heavy 0.2%-0.3% of material; Can directly add the 98% above vitriol oil during acid out, add-on is the heavy 0.2%-0.3% of material.But add-on should be done suitable adjustment according to the material quality.
Vacuum drying technical requirements and technical parameter: vacuum drying temperature is at 90 ℃-110 ℃, and absolute pressure is below 8Kpa.
The technical requirements of filtration process and technical parameter: its filtration temperature is selected suitable filter according to impurity content and granularity about 80 ℃, reach the requirement of ether insolubles 0.1%.
The technical requirements of evaporation technology and technical parameter: it is selected with efficient rotor segment film type evaporated form, and its vaporization temperature is at 220 ℃-250 ℃.
The technical requirements of distil process and technical parameter: add the superheated open steam in the distillation plant, add-on is the heavy 1%-3% of material, presenting material fully stirs with material and fully contacts with steam, reach the purpose of stripping (distillation) lipid acid, temperature of charge is more than 160 ℃ during distillation, and gas phase temperature should be less than 250 ℃.
Described lipid acid AV〉180.
Described glyceryl ester AV＜3.
Waste animal and vegetable oil itself is a kind of mixture that contains different quantities glyceryl ester and lipid acid, and its reaction in producing biofuel (fatty acid methyl ester) process of these two kinds of materials is respectively esterification and transesterification reaction.Therefore its reaction product also is not quite similar, and two kinds of main ingredients of stock oil is separated in preprocessing process, adopts different technology conditions and method to react again respectively, will help reacting fully, produce the assurance of stable and quality product.The present invention adopts evaporation, distillation or novel evaporation/distillation associated plant, stock oil main ingredient lipid acid (AV〉180) is separated (when raw material condition is relatively poor with low acid number grease (AV＜3), to low acid number oil component, sometimes also will make its acid number reach AV＜3 by adding the alkali neutralization reaction), and then carry out esterification and transesterification reaction respectively and will obtain gratifying effect.Under normal circumstances, the methyl esters content of its reaction generation all can reach more than 98%.
The present invention compared with prior art has the following advantages: technological operation is simple, number of devices is few, investment is saved relatively, consuming little energy, applied widely, the lipid acid of gained and glyceryl ester purity height, thus lay a good foundation the final purpose that realizes improving biodiesel production rate for esterification (transesterify) technology.
[description of drawings]
Fig. 1 is a process flow sheet of the present invention.
Referring to Fig. 1,1 for removal of impurities, and 2 be aquation, and 3 be dry, and 4 for filtering, and 5 for evaporating, distill, 6 be lipid acid, glyceride.
[embodiment]
Example one: 50 kilograms of the sewer oils of collecting in the area, Shanghai, its water content 70%, greasy acid number AV is 140, the grease (because of removing moisture and solid impurity) that obtains 14.00 kilograms through this processes enters evaporation/distillation associated plant acquisition: AV〉glyceryl ester of 180 9.50 kilograms and 4.30 kilograms AV＜3 of lipid acid, and enter esterification step respectively.
Example two: 50 kilograms of the food and drink abendoned oils of collecting in the area, Shanghai, its water content 30%.Greasy acid number AV is 20, obtains 34.20 kilograms of greases through this processes and enters evaporation/distillation associated plant acquisition: AV〉glyceryl ester of 180 3.30 kilograms and 30.50 kilograms AV＜3 of lipid acid, and enter esterification step respectively.
Example three: with the AV of pretreatment technology gained of the present invention is after 198 lipid acid enters esterification step, to use the biological enzyme reaction, and methyl ester conversion rate is up to 99%.
Example four: with the AV of pretreatment technology gained of the present invention is after 2.20 glyceryl ester enters esterification step, to use basic catalyst to carry out transesterification reaction, and methyl ester conversion rate is up to 98%.
Claims (8)
1. the pre-treating process of a preparing biological diesel oil from waste animals and plants grease, it is characterized in that processing step is: pour stock oil at oil-filtering box, after pump enters rendering tank, add entry or salt or sulfuric acid and carry out aquation, saltout or acid out, standing demix is removed subnatant, upper oil phase is sent into vacuum drier, pass through filter then, filter the back and under high vacuum, evaporate, distill or evaporate and distill combination process, thereby obtain lipid acid and two kinds of main ingredients of glyceryl ester.
2. the pre-treating process of a kind of preparing biological diesel oil from waste animals and plants grease as claimed in claim 1, it is characterized in that aquation, saltout and the technical requirements and the technical parameter of acid out technology: the amount of water during aquation is the heavy 5%-8% of material; Can add its add-on of solid salt when saltouing and be material heavy 0.2%; Can directly add the 98% above vitriol oil during acid out, add-on be material heavy 0.2%, but add-on should be done suitable adjustment according to the material quality.
3. the pre-treating process of a kind of preparing biological diesel oil from waste animals and plants grease as claimed in claim 1, it is characterized in that vacuum drying technical requirements and technical parameter: vacuum drying temperature is at 90 ℃-110 ℃, and absolute pressure is below 8Kpa.
4. the pre-treating process of a kind of preparing biological diesel oil from waste animals and plants grease as claimed in claim 1, the technical requirements and the technical parameter that it is characterized in that filtration process: its filtration temperature is about 80 ℃, select suitable filter according to impurity content and granularity, reach 0.1% the requirement that the ether insolubles accounts for filtering solution.
5. the pre-treating process of a kind of preparing biological diesel oil from waste animals and plants grease as claimed in claim 1, the technical requirements and the technical parameter that it is characterized in that evaporation technology: it is selected with efficient rotor segment film type evaporated form, and its vaporization temperature is at 220 ℃-250 ℃.
6. the pre-treating process of a kind of preparing biological diesel oil from waste animals and plants grease as claimed in claim 1, the technical requirements and the technical parameter that it is characterized in that distil process: add the superheated open steam in the distillation plant, add-on is the heavy 1%-3% of material, presenting material fully stirs with material and fully contacts with steam, reach the purpose of distilled fatty acid, temperature of charge is more than 160 ℃ during distillation, and gas phase temperature should be less than 250 ℃.
7. the pre-treating process of a kind of preparing biological diesel oil from waste animals and plants grease as claimed in claim 1 is characterized in that described lipid acid acid number AV〉180.
8. the pre-treating process of a kind of preparing biological diesel oil from waste animals and plants grease as claimed in claim 1 is characterized in that described glyceryl ester acid number AV＜3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101167163A CN100500809C (en) | 2006-09-29 | 2006-09-29 | Pre-treating process for preparing biological diesel oil with waste animal and vegetable oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101167163A CN100500809C (en) | 2006-09-29 | 2006-09-29 | Pre-treating process for preparing biological diesel oil with waste animal and vegetable oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1931963A CN1931963A (en) | 2007-03-21 |
| CN100500809C true CN100500809C (en) | 2009-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101167163A Expired - Fee Related CN100500809C (en) | 2006-09-29 | 2006-09-29 | Pre-treating process for preparing biological diesel oil with waste animal and vegetable oil |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550349A (en) * | 2008-03-31 | 2009-10-07 | 西安市宝润实业发展有限公司 | Method for preparing biodiesel by supercritical technology |
| CN101260312B (en) * | 2008-04-29 | 2013-07-03 | 邓楚柏 | Method for producing biological diesel oil |
| KR101418283B1 (en) | 2014-02-26 | 2014-07-10 | 포시즌이앤이 주식회사 | Fatty acid production using waste cooking device |
| CN109126813A (en) * | 2018-09-17 | 2019-01-04 | 龙岩卓越新能源股份有限公司 | Utilize the method for waste animal and plant fat production atoleine |
| CN109897731A (en) * | 2019-04-10 | 2019-06-18 | 淮南泉润环保科技有限公司 | A method of utilizing preparing fatty acid by illegal cooking oil |
| CN111909793A (en) * | 2020-08-14 | 2020-11-10 | 易高生物化工科技(张家港)有限公司 | Pretreatment method of high-chlorine waste grease |
| CN111876265A (en) * | 2020-08-19 | 2020-11-03 | 四川金尚环保科技有限公司 | High-chlorine-content intermittent large-scale waste animal and vegetable oil pretreatment system and method |
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2006
- 2006-09-29 CN CNB2006101167163A patent/CN100500809C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1931963A (en) | 2007-03-21 |
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| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI LVMING ENVIRONMENTAL PROTECTION TECHNOLO Free format text: FORMER OWNER: YE ZHENGYAO; APPLICANT Effective date: 20070803 |
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Effective date of registration: 20070803 Address after: 200335 No. 201, Lane 99, Coke Road, Shanghai, Changning District Applicant after: Shanghai Luming Environmental Protection Science Co., Ltd. Address before: 200335 No. 201, Lane 99, Coke Road, Shanghai, Changning District Applicant before: Ye Zhengyao Co-applicant before: Tao Jun |
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Effective date of registration: 20090605 Address after: Room fourth, building 18-30, No. 88, Lane 115, Min Min Road, Shanghai, Minhang District Patentee after: Shanghai Lvming Environmental Protection Technology Co., Ltd. Address before: No. 201, Lane 99, Coke Road, Shanghai, Changning District Patentee before: Shanghai Luming Environmental Protection Science Co., Ltd. |
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