CN103265993B - Method for preparing solid alcohol by using waste cooking oil as raw material - Google Patents
Method for preparing solid alcohol by using waste cooking oil as raw material Download PDFInfo
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- CN103265993B CN103265993B CN201310238229.4A CN201310238229A CN103265993B CN 103265993 B CN103265993 B CN 103265993B CN 201310238229 A CN201310238229 A CN 201310238229A CN 103265993 B CN103265993 B CN 103265993B
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- oil
- cooking oil
- waste cooking
- waste
- saponification
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- 239000002699 waste material Substances 0.000 title claims abstract description 48
- 239000007787 solid Substances 0.000 title claims abstract description 29
- 239000008162 cooking oil Substances 0.000 title claims abstract description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000002994 raw material Substances 0.000 title claims abstract description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 45
- 238000007127 saponification reaction Methods 0.000 claims abstract description 25
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000000967 suction filtration Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 6
- 239000011780 sodium chloride Substances 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 38
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 235000013305 food Nutrition 0.000 claims description 3
- 235000021168 barbecue Nutrition 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 238000004061 bleaching Methods 0.000 abstract 1
- 239000004927 clay Substances 0.000 abstract 1
- 239000000701 coagulant Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 abstract 1
- 238000005185 salting out Methods 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 description 7
- 235000021355 Stearic acid Nutrition 0.000 description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 4
- 239000008117 stearic acid Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000344 soap Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- 239000003925 fat Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 235000021313 oleic acid Nutrition 0.000 description 2
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 description 2
- 239000004449 solid propellant Substances 0.000 description 2
- 241001672694 Citrus reticulata Species 0.000 description 1
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 description 1
- 239000003225 biodiesel Substances 0.000 description 1
- 239000002551 biofuel Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010773 plant oil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- UFTFJSFQGQCHQW-UHFFFAOYSA-N triformin Chemical compound O=COCC(OC=O)COC=O UFTFJSFQGQCHQW-UHFFFAOYSA-N 0.000 description 1
- 125000005457 triglyceride group Chemical group 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Fats And Perfumes (AREA)
Abstract
The invention discloses a method for preparing solid alcohol by using waste cooking oil as a raw material. After the waste cooking oil is preprocessed with bleaching clay, the saponification is performed under the effect of sodium hydroxide, and a saponification product is obtained after sodium chloride salting-out, suction filtration and drying; and then the saponification product is used as a coagulating agent, alcohol is added at certain temperature to dissolve, and the solid alcohol is formed after injection molding and cooling. The method has the advantages of simple process and low cost, the obtained solid alcohol has the advantages of long burning time and flame stabilization, and additionally, the waste cooking oil can be effectively recycled and prevented from flowing back onto dining tables again and causing secondary pollution.
Description
Technical field
The present invention relates to a kind of recycling of waste cooking oil and the preparation method of solid alcohol, relate to resource recycling and solid fuel field.
Background technology
What waste oil from restaurant referred to that restaurant unit etc. produces in production and operation can not be edible again animal-plant oil, contain multiple harmful composition.If do not recycled, not only waste valuable natural resources, also can cause secondary pollution, or again flow into dining table by lawless person, the people's health is caused to grave danger.Therefore, the comprehensive utilization of this class waste oil can be turned waste into wealth, be turned harm into good, have important practical significance.
Current, China mainly contains following approach to the recycling of waste oil from restaurant: (1) Directly saponification is produced soap and washing powder; (2) Chemicals such as stearic acid, oleic acid, glycerine are prepared in waste oil hydrolysis; (3) waste oil under catalyst action through transesterification reaction prepare biofuel etc. [Wei Zhengyan, Shang Xueling. the technical study of waste cooking oil and peel of Citrus reticulata Blanco soap system. Xinxiang University's journal (natural science edition), 2010,27,49-50; Guo Tao, Du Leilei, ten thousand brightness, what is conquered east. and waste cooking oil is prepared the research of stearic acid and oleic acid, food science and technology, 2009,34,109-112; Dong Hong, Gao Jianfeng, Gu Guoli, Deng Xiaoyan. the research of waste cooking oil preparing biological diesel oil. agricultural engineering technology (New Energy Industry), 2009,4,31-33].Although these several approach can effective recycling waste oil from restaurant, all has some problem, as too low in the added value of product such as soap, stearic acid, production of biodiesel technical difficulty is large etc.Therefore, be necessary the new way of the recycling of further exploring waste oil from restaurant fat.
Solid alcohol is a kind of novel solid fuel, compared with liquid ethanol fuel, has combustion time long, homogeneous flame temperature, and calorific value deviation is less, facilitates the advantages such as attractive in appearance, safety is portable, is widely used in the occasions such as catering trade, tourism and field work.The preparation method of current main-stream uses stearic acid to react the rear sodium stearate generating with sodium hydroxide as alcohol solidifying agent.And the predecessor of waste oil is natural fats and oils, its main component is triglyceride level, and triglyceride level saponification can generate the mixture of sodium stearate and sodium oleate.Therefore, the saponification resultant of waste oil has the possibility as solid alcohol peptizer.But, up to now, do not find the report take waste oil from restaurant as raw material synthesis of solid alcohol.
Summary of the invention
The object of the invention is to provide a kind of method of preparing solid alcohol take waste cooking oil as raw material, this law can be by comparatively simple preparation method, obtain cheap solid alcohol fuel, the waste cooking oil of energy effective recycling simultaneously, prevents that it from again flowing into dining table and causing secondary pollution.
Concrete steps are:
(1) will in waste cooking oil, add the Fuller's earth powder of waste oil massfraction 5%, heat 25 minutes in the constant temperature oil bath of 120 ° of C, cooled and filtered obtains pretreated waste cooking oil.
(2) the ratio weighing sodium hydroxide that is 2:1 in the mass ratio of waste cooking oil and sodium hydroxide, is formulated as massfraction and is 20% sodium hydroxide solution.
(3) pretreated waste cooking oil step (1) being made mixes with the sodium hydroxide solution of step (2), and saponification reaction is carried out in heating, and the saponification reaction time is 4 hours, and saponification temperature is 80 ~ 100 ° of C, after saponification reaction completes, obtains saponification mixture.
(4) solid sodium chloride of waste cooking oil quality 60% is joined in the saponification mixture that step (3) makes and saltout, then carry out while hot suction filtration, the product after suction filtration is placed in to thermostatic drying chamber, under 105 ° of C, be dried 4 hours, take out coolingly, obtain saponification resultant.
(5) take ethanolic soln that the massfraction of 3 times of waste cooking oil quality is 95% and join in saponification resultant prepared by step (4), casting after oil bath heating for dissolving under 80 ° of C, the figurate solid alcohol of cooling rear formation tool.
Described waste cooking oil is: the waste oil of restaurant unit in the oily end or the smoke exhaust ventilator oil trap of repeatedly frying oil superseded after barbecue food materials, restaurant unit culinary art.
The solid alcohol that the present invention makes is translucent gelinite, and good uniformity is at room temperature stable, is convenient for carrying, cheap.This solid alcohol is easy to light, combustion time is long, be 80s average every gram of alcohol combustion time, even flame, free from extraneous odour, black smoke when burning, can be for general catering trade, tourism and field work occasion, the about 0.25g waste cooking oil of this solid alcohol energy effective recycling of every production 1g simultaneously, can effectively prevent that waste cooking oil from again flowing into dining table and causing secondary pollution.
Embodiment
Embodiment 1:
(1) take waste oil 5 g in smoke exhaust ventilator oil trap, add 0.25 g Fuller's earth powder, in the oil bath of 120 ° of C, heat cooled and filtered 25 minutes.
(2) taking 2.5g sodium hydroxide is dissolved in 10 g water and makes sodium hydroxide solution.
(3) step (2) gained sodium hydroxide solution and step (1) waste oil after treatment are mixed in 100 mL flasks to reacting by heating 4 hours under 80 ° of C oil baths.
(4) add while stirring while hot 3g solid sodium chloride to saltout step (3) products therefrom, suction filtration while hot subsequently, is placed in thermostatic drying chamber by gained solid, under 105 ° of C dry 4 hours, take out cooling after.
(5), toward the ethanolic soln that adds 15 g massfractions 95% in step (4) gained saponification resultant, under 80 ° of C oil baths after heating for dissolving, casting, obtains solid alcohol after cooling.
Embodiment 2:
(1) take frying waste oil 50 g of street restaurant, add 2.5 g Fuller's earth powder, in the oil bath of 120 ° of C, heat cooled and filtered 25 minutes.
(2) in step (1) product, add sodium hydroxide solution 125 g of massfraction 20 %, reacting by heating 4 hours under 100 ° of C oil baths.
(3) add while stirring while hot 30 g solid sodium chloride to saltout step (2) product, suction filtration while hot subsequently, is placed in thermostatic drying chamber by gained solid, under 105 ° of C dry 4 hours, takes out cooling.
(4) in step (3) gained saponification resultant, add 150 g massfraction 95% ethanolic solns, under 80 ° of C oil baths after heating for dissolving, casting, obtains solid alcohol after cooling.
Embodiment 3:
(1) take the g of the oily ends 10 that restaurant unit is cooked, add 0.5 g Fuller's earth powder, in the oil bath of 120 ° of C, heat cooled and filtered 25 minutes.
(2) in step (1) product, add the sodium hydroxide solution of 25 g massfraction 20 %, reacting by heating 4 hours under 90 ° of C oil baths.
(3) add while stirring while hot 6 g solid sodium chloride to saltout step (2) product, suction filtration while hot subsequently, is placed in thermostatic drying chamber by gained solid, under 105 ° of C dry 4 hours, takes out cooling.
(4), toward the ethanolic soln that adds 30 g massfractions 95% in step (3) gained saponification resultant, under 80 ° of C oil baths after heating for dissolving, casting, obtains solid alcohol after cooling.
Claims (2)
1. prepare a method for solid alcohol take waste cooking oil as raw material, it is characterized in that concrete steps are:
(1) will in waste cooking oil, add the Fuller's earth powder of waste oil massfraction 5%, heat 25 minutes in the constant temperature oil bath of 120 ° of C, cooled and filtered obtains pretreated waste cooking oil;
(2) the ratio weighing sodium hydroxide that is 2:1 in the mass ratio of waste cooking oil and sodium hydroxide, is formulated as massfraction and is 20% sodium hydroxide solution;
(3) pretreated waste cooking oil step (1) being made mixes with the sodium hydroxide solution of step (2), and saponification reaction is carried out in heating, and the saponification reaction time is 4 hours, and saponification temperature is 80 ~ 100 ° of C, after saponification reaction completes, obtains saponification mixture;
(4) solid sodium chloride of waste oil quality 60% is joined in the saponification mixture that step (3) makes and saltout, then carry out while hot suction filtration, the product after suction filtration is placed in to thermostatic drying chamber, under 105 ° of C, be dried 4 hours, take out coolingly, obtain saponification resultant;
(5) take ethanolic soln that the massfraction of 3 times of waste oil quality is 95% and join in saponification resultant prepared by step (4), casting after oil bath heating for dissolving under 80 ° of C, the figurate solid alcohol of cooling rear formation tool.
2. the method for preparing solid alcohol take waste cooking oil as raw material according to claim 1, is characterized in that described waste cooking oil is: the waste oil of restaurant unit in the oily end or the smoke exhaust ventilator oil trap of repeatedly frying oil superseded after barbecue food materials, restaurant unit culinary art.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310238229.4A CN103265993B (en) | 2013-06-17 | 2013-06-17 | Method for preparing solid alcohol by using waste cooking oil as raw material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310238229.4A CN103265993B (en) | 2013-06-17 | 2013-06-17 | Method for preparing solid alcohol by using waste cooking oil as raw material |
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| Publication Number | Publication Date |
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| CN103265993A CN103265993A (en) | 2013-08-28 |
| CN103265993B true CN103265993B (en) | 2014-05-14 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593113A (en) * | 2013-10-31 | 2015-05-06 | 孙立 | Method for producing solid fuel from swill-cooked dirty oil |
| CN104804795B (en) * | 2015-03-31 | 2018-07-03 | 桂林理工大学 | It is a kind of using waste cooking oil as solid alcohol of raw material and preparation method thereof and equipment |
| CN104862080B (en) * | 2015-05-21 | 2018-04-06 | 贵阳市民族中学 | A kind of method that fuel for chafing dish is made using gutter oil as raw material |
| CN105331419A (en) * | 2015-12-07 | 2016-02-17 | 洛阳理工学院 | Method for preparing solid fuel by means of high-concentration organic waste liquid |
| CN106417376A (en) * | 2016-09-14 | 2017-02-22 | 刘锦龙 | Method for preparing cockroach-repelling biological environment-friendly soap from waste kitchen oil |
| CN112391217A (en) * | 2020-11-07 | 2021-02-23 | 扬州市江都区中天旅游用品有限公司 | Biomass solid alcohol fuel with high combustion value |
| TWI773305B (en) * | 2021-05-07 | 2022-08-01 | 賴彥光 | Environmental protection fuel and method for manufacturing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069057A (en) * | 1991-07-31 | 1993-02-17 | 曹云德 | Petrochemical industry synthetic domestic fuel |
| CN101717680A (en) * | 2009-11-05 | 2010-06-02 | 华侨大学 | Method for preparing adsorption solid alcohol |
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- 2013-06-17 CN CN201310238229.4A patent/CN103265993B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069057A (en) * | 1991-07-31 | 1993-02-17 | 曹云德 | Petrochemical industry synthetic domestic fuel |
| CN101717680A (en) * | 2009-11-05 | 2010-06-02 | 华侨大学 | Method for preparing adsorption solid alcohol |
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| CN103265993A (en) | 2013-08-28 |
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Granted publication date: 20140514 |