CN100376657C - method for producing biologic diesel oil through use of tailings of animal and vegetable oils in high acid number - Google Patents
method for producing biologic diesel oil through use of tailings of animal and vegetable oils in high acid number Download PDFInfo
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- CN100376657C CN100376657C CNB2005101001394A CN200510100139A CN100376657C CN 100376657 C CN100376657 C CN 100376657C CN B2005101001394 A CNB2005101001394 A CN B2005101001394A CN 200510100139 A CN200510100139 A CN 200510100139A CN 100376657 C CN100376657 C CN 100376657C
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- oil
- high acid
- diesel oil
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- 239000002253 acid Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 235000015112 vegetable and seed oil Nutrition 0.000 title claims abstract description 14
- 239000008158 vegetable oil Substances 0.000 title claims abstract description 14
- 239000010775 animal oil Substances 0.000 title claims abstract description 13
- 239000002283 diesel fuel Substances 0.000 title claims abstract description 7
- 238000005886 esterification reaction Methods 0.000 claims abstract description 16
- 230000032050 esterification Effects 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 10
- 150000002148 esters Chemical class 0.000 claims abstract description 5
- 230000035484 reaction time Effects 0.000 claims abstract description 5
- 239000003054 catalyst Substances 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- 239000003921 oil Substances 0.000 claims description 27
- 235000019198 oils Nutrition 0.000 claims description 27
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical group S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 18
- 239000003225 biodiesel Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- -1 organic acid compound Chemical class 0.000 claims description 10
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 5
- 239000004141 Sodium laurylsulphate Substances 0.000 claims description 5
- 150000004996 alkyl benzenes Chemical group 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 5
- 239000011707 mineral Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 235000019333 sodium laurylsulphate Nutrition 0.000 claims description 5
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- QRMMMWOSHHVOCJ-UHFFFAOYSA-N 2,2-dimethylheptanoic acid Chemical compound CCCCCC(C)(C)C(O)=O QRMMMWOSHHVOCJ-UHFFFAOYSA-N 0.000 claims description 2
- 235000010469 Glycine max Nutrition 0.000 claims description 2
- 244000068988 Glycine max Species 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 claims description 2
- 238000005194 fractionation Methods 0.000 claims description 2
- 229940055577 oleyl alcohol Drugs 0.000 claims description 2
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims description 2
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims description 2
- 239000010499 rapseed oil Substances 0.000 claims description 2
- 238000004062 sedimentation Methods 0.000 claims description 2
- OBETXYAYXDNJHR-SSDOTTSWSA-M (2r)-2-ethylhexanoate Chemical compound CCCC[C@@H](CC)C([O-])=O OBETXYAYXDNJHR-SSDOTTSWSA-M 0.000 claims 1
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 claims 1
- 210000000582 semen Anatomy 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000002378 acidificating effect Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 230000001804 emulsifying effect Effects 0.000 abstract description 3
- 150000007524 organic acids Chemical class 0.000 abstract description 2
- 150000007522 mineralic acids Chemical class 0.000 abstract 2
- ALSTYHKOOCGGFT-UHFFFAOYSA-N cis-oleyl alcohol Natural products CCCCCCCCC=CCCCCCCCCO ALSTYHKOOCGGFT-UHFFFAOYSA-N 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 239000005416 organic matter Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- 239000002551 biofuel Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 4
- 235000019387 fatty acid methyl ester Nutrition 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 150000002632 lipids Chemical class 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000006136 alcoholysis reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 208000012839 conversion disease Diseases 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 235000012343 cottonseed oil Nutrition 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention relates to a method for producing biologic diesel oil by using tailings of animal and vegetable oil in high acid number. The present invention is characterized in that inorganic acid or a compounding substance of the inorganic acid and organic acid is used as catalyst which esterifies the tailings with high acid number under the condition of heating according to the general molar ratio of oleic alcohol, the esterification reaction time is three to five hours, an accelerating agent is added for 0.5 to 1 hour before the esterification is finished, the non-purpose product part is separated by settling and water washing methods to obtain qualified raw ester which is afterwards distilled and separated, and finally the biologic diesel oil of the finished product is obtained. The accelerating agent is a weakly acidic organic matter with certain emulsifying ability. Compared with the prior art, the present invention has the advantages of simple manufacturing process, convenient operation, stable product quality, good obtained economic benefit and little pollution.
Description
Technical field:
The present invention relates to a kind of production method of bio-diesel oil.
Background technology:
Petering out and human rapid increase of fossil energy to the fuel energy demand, becoming increasingly conspicuous of this contradiction, greatly excited people to seek the enthusiasm of the substitute energy of renewable cleaning, go into overdrive one after another in countries in the world, drop into huge fund and research and develop, biofuel (being fatty acid methyl ester) is arisen at the historic moment, and it is with its good recyclability, spatter property and splendid combustionproperty enjoy people's parent to look at.
Abroad, though biofuel industrialization, and obtain the great attention of national governments, the production cost of biofuel has restricted the fast development of biofuel industry undoubtedly much larger than petrifaction diesel.Many at home scientific research institutions and enterprise also in active research and exploitation biofuel, have many pieces of patents and paper publishing, and enterprise of existing a few family produce as a trial, but, no matter adopt conventional esterification, all there are many problems in biological enzyme or supercritical methanol technology, the production cycle that has is long, reaction conversion ratio is low, and the investment that has is excessive, and production cost is too high, thereby can't form industrialization rapidly, realize producing the scale operation of diesel oil.And the biofuel that the present invention produced can realize high yield, low cost, and products obtained therefrom is than the existing price advantage of petrifaction diesel, has environment-friendly advantage again.
Discarded oil plant (comprising the tankage and the out of date edible oil that produce in hogwash fat and the oil and fat refining process) for high acid value directly utilizes alkali as a catalyst that it is directly carried out the result that alcoholysis can not obtain satisfaction, common way is, utilize mineral acid or organic acid or the mixture of the two as catalyzer, itself and low-carbon alcohol are carried out esterification under certain conditions, to obtain the object fatty acid methyl ester, be biofuel, reaction formula is as follows:
(R is C
12-C
22)
A spot of list is still arranged in addition, similarly reaction also takes place with methyl alcohol in diglyceride, but this is not the emphasis that we discuss, so ignore, obviously, it is very favourable to improving conversion rate of esterification in time to remove the moisture content that generates in the reaction, the general method that adopts is nothing more than two kinds: increase the amount of methyl alcohol or add entrainer in time to remove moisture content, the former has wasted a large amount of methyl alcohol, the latter has lost the partially azeotropic agent and has increased recovery system, energy consumption also strengthens, and two kinds of methods have all restricted the production of biofuel because of the increase production cost.
Summary of the invention:
Goal of the invention of the present invention is the defective at the prior art scheme, provide a kind of technology simple, easy to operate, can obtain good economic benefit, that can reduce environmental pollution again utilizes high acid value animal and vegetable oil leftover production method of bio-diesel oil.
The present invention realizes like this, make catalyzer with mineral acid or mineral acid and organic acid compound, oleyl alcohol mol ratio routinely (promptly 1: 3～6) is carried out esterification to the high acid value oil leftover under the condition of heating, reaction time of esterification is 3～5 hours, finish to add in preceding 0.5～1 hour promotor closing on esterification, method by sedimentation, washing separates non-purpose product section at last, obtain qualified thick ester, the thick ester of fractionation by distillation then, obtain refined biometric diesel oil at last, promotor being has organism certain emulsifying capacity and weakly acidic.
We know, as substantially the most also being most economical esterification process, generally all adopt sulfuric acid to come enhance esterification as catalyzer, initial in esterification, big under the existence of abundant fatty acid because of its polarity, the polarity of reaction mixture is also big, fabulous with the vitriolic consistency, make esterification speed accelerate greatly, but carrying out along with reaction, lipid acid changes fatty acid methyl ester gradually into, in the whole reaction system, the polarity of mixture constantly reduces, sulfuric acid causes partly until all losing catalytic capability because of its solvability reduces, this moment, the simple sulfuric acid consumption that increases not only caused side reaction to increase, therefore final yield can not improve yet, the method that the present invention adopts is in the reaction later stage, again by adding a spot of certain emulsifying capacity of having, weakly acidic organism with special construction (is called for short: catalytic promoter) increase the solvability of sulfuric acid at reaction mixture, strengthen the catalysis efficiency of sulfuric acid in the reaction later stage, shorten the reaction times thereby reach, make every effort to maximum equilibrium conversion, thereby reach the purpose that reduces production cost.
Here, catalyzer is a sulfuric acid, and promotor is alkyl benzene sulphonate (ABS), at least a in the mixture of sodium lauryl sulphate, alkyl carboxylic acid that oil soluble is good.
Compared with the prior art the present invention has that technology is simple, easy to operate, constant product quality, can obtain good economic benefit, can reduce the advantage of environmental pollution again.
Embodiment:
Now in conjunction with the embodiments the present invention is described in further detail:
The present invention be achieved in that will remove the high acid value cotton oil lipid acid of mechanical impurity and moisture content drop into reactor by following proportioning, 5 back flow reaction 3-5hr under 80-90 ℃ of temperature finish to add in preceding 0.5～1 hour promotor closing on esterification.Detect acid number, qualified twice washing in back, otherwise proper extension reaction times, adopting packing tower at last is that 0.5-4mmHg carries out vacuum distilling in absolute pressure, collects 160-220 ℃ of fraction, i.e. biofuel.
High acid value waste oil: 100 parts
Methyl alcohol: 12～20 parts
Sulfuric acid: 3～8 parts
Promotor: 10%～35%wt of sulfuric acid consumption
The raw materials used tankage of the present invention for producing in rape oil, soya-bean oil, the cottonseed wet goods vegetable oil refining process, also available hogwash fat.
Promotor is alkyl benzene sulphonate (ABS), at least a in the mixture of sodium lauryl sulphate, alkyl carboxylic acid that oil soluble is good.Preferably by alkyl benzene sulphonate (ABS): 35～50 parts, sodium lauryl sulphate: 1～5 part, many alkyl carboxylic acids: 40～60 parts of formations.Many alkyl carboxylic acids are 2-ethyl acid or 2,6 one dimethyl enanthic acid or tert.-butylacetic acid or pentamethylene base butyric acid etc. and oil soluble homologue thereof.
(above-mentioned all shares are weight quota)
Adopt the biofuel of explained hereafter of the present invention, every index is after testing, and is very nearly the same with the standard of domestic No. 0 diesel oil, complete alternative petrifaction diesel, and can be directly used in various is in the mechanical type diesel vehicle of power with the petrifaction diesel.
Attached: the biofuel leading indicator that the inventive method is produced is as follows:
| Index name | Unit | Desired value |
| Colourity | Number | ≤1 |
| Sulphur content | ％(m/m) | 0.015 |
| Acid number | MgkoH/100ml | 51.22-53.47 |
| Density | (20℃)g/ml | 0.85-0.87 |
| The matter branch | ％(m/m) | 0.01 |
| Condensation point | ℃ | ≤-2 |
| Flash-point (remaining silent) | ℃ | ≥85 |
| Ketone sheet corrosion (50 ℃) | Level | ≤1 |
| Moisture content | ％(m/m) | Vestige |
| Mechanical impurity | Do not have | |
| Kinematic viscosity | Mm 2/s | 5.0-6.0 |
| Cetane value | ≥47 | |
| Boiling range | ℃ | 350 |
Claims (9)
1. one kind is utilized high acid value animal and vegetable oil leftover production method of bio-diesel oil, it is characterized in that making catalyzer with mineral acid or mineral acid and organic acid compound, oleyl alcohol mol ratio routinely, promptly 1: 3～6, under the condition of heating, the high acid value oil leftover is carried out esterification, reaction time of esterification is 3～5 hours, finish to add in preceding 0.5～1 hour promotor closing on esterification, at last by sedimentation, the method of washing separates non-purpose product section, obtain qualified thick ester, the thick ester of fractionation by distillation obtains refined biometric diesel oil at last then, and promotor is alkyl benzene sulphonate (ABS), the mixture of the alkyl carboxylic acid that sodium lauryl sulphate and oil soluble are good.
2. the high acid value animal and vegetable oil leftover production method of bio-diesel oil of utilizing according to claim 1 is characterized in that catalyzer is a sulfuric acid.
3. the high acid value animal and vegetable oil leftover production method of bio-diesel oil of utilizing according to claim 1 and 2 is characterized in that promotor is by alkyl benzene sulphonate (ABS): 35～50 parts and sodium lauryl sulphate: 1～5 part and many alkyl carboxylic acids: 40～60 parts of formations.
4. the high acid value animal and vegetable oil leftover production method of bio-diesel oil of utilizing according to claim 3 is characterized in that many alkyl carboxylic acids are 2 ethyl hexanoic acid or 2,6 one dimethyl enanthic acid or tert.-butylacetic acid or pentamethylene base butyric acid and oil soluble homologue thereof.
5. the high acid value animal and vegetable oil leftover production method of bio-diesel oil of utilizing according to claim 1 and 2 is characterized in that the high acid value oil leftover is the tankage that produce in rape oil, soya-bean oil, the Oleum Gossypii semen refining process and in the hogwash fat one or more.
6. the high acid value animal and vegetable oil leftover production method of bio-diesel oil of utilizing according to claim 1 and 2 is characterized in that temperature of reaction is 80-90 ℃.
7. the high acid value animal and vegetable oil leftover production method of bio-diesel oil of utilizing according to claim 1 and 2 is characterized in that catalyst consumption is the 3-8% of high acid value oil leftover weight.
8. the high acid value animal and vegetable oil leftover production method of bio-diesel oil of utilizing according to claim 7 is characterized in that accelerator level is 10%～35%wt of catalyst levels.
9. the high acid value animal and vegetable oil leftover production method of bio-diesel oil of utilizing according to claim 1 and 2 is characterized in that distillation employing packing tower carries out vacuum distilling, and absolute pressure is 0.5-4mmHg during vacuum distilling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101001394A CN100376657C (en) | 2005-09-28 | 2005-09-28 | method for producing biologic diesel oil through use of tailings of animal and vegetable oils in high acid number |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101001394A CN100376657C (en) | 2005-09-28 | 2005-09-28 | method for producing biologic diesel oil through use of tailings of animal and vegetable oils in high acid number |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1760336A CN1760336A (en) | 2006-04-19 |
| CN100376657C true CN100376657C (en) | 2008-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005101001394A Expired - Fee Related CN100376657C (en) | 2005-09-28 | 2005-09-28 | method for producing biologic diesel oil through use of tailings of animal and vegetable oils in high acid number |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432187C (en) * | 2006-09-21 | 2008-11-12 | 郑州新力德粮油科技有限公司 | Production process of biological diesel oil |
| CN101298055B (en) * | 2008-06-13 | 2010-06-09 | 东南大学 | Catalyst for preparing biological diesel oil from high acid value waste animal and plant oil and preparation thereof |
| CN101921631B (en) * | 2009-06-15 | 2014-08-20 | 尉氏县挺凯植物胶化工厂有限公司 | Production method of biodiesel |
| CN101805671A (en) * | 2010-04-09 | 2010-08-18 | 上海中器环保科技有限公司 | Method for using waste oil for carrying out one-step method acid catalysis to prepare biodiesel |
| CN104745309B (en) * | 2013-12-27 | 2018-04-13 | 中国石油化工股份有限公司 | A kind of method for improving biodiesel yield |
| FR3059327B1 (en) | 2016-11-25 | 2021-10-15 | Arkema France | ACID COMPOSITION FOR TREATMENT OF FATTY ACIDS |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1473907A (en) * | 2002-08-07 | 2004-02-11 | 四川古杉油脂化学有限公司 | Process for producing biological diesel oil |
| US6719815B2 (en) * | 1999-12-27 | 2004-04-13 | Purac Biochem B.V. | Fuel composition |
| CN1560197A (en) * | 2004-03-05 | 2005-01-05 | 王聚亮 | Process of preparing biologic diesel oil by swill oil |
-
2005
- 2005-09-28 CN CNB2005101001394A patent/CN100376657C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6719815B2 (en) * | 1999-12-27 | 2004-04-13 | Purac Biochem B.V. | Fuel composition |
| CN1473907A (en) * | 2002-08-07 | 2004-02-11 | 四川古杉油脂化学有限公司 | Process for producing biological diesel oil |
| CN1560197A (en) * | 2004-03-05 | 2005-01-05 | 王聚亮 | Process of preparing biologic diesel oil by swill oil |
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| CN1760336A (en) | 2006-04-19 |
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Address after: 528100, Guangdong City, Foshan Province Sanshui District southwest Street South Village Committee resources (former paint factory) Patentee after: Foshan Zhenghe Bio-Energy Co., Ltd. Address before: 528100, Guangdong City, Foshan Province Sanshui District southwest Street South Village Committee resources (former paint factory) Patentee before: Foshan Sanshui Zhenghe Fine Chemical Co., Ltd. |
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Granted publication date: 20080326 Termination date: 20140928 |
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