CN103265993A - 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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- CN103265993A CN103265993A CN2013102382294A CN201310238229A CN103265993A CN 103265993 A CN103265993 A CN 103265993A CN 2013102382294 A CN2013102382294 A CN 2013102382294A CN 201310238229 A CN201310238229 A CN 201310238229A CN 103265993 A CN103265993 A CN 103265993A
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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
Catering trade waste oil refers to the animal-plant oil that can not eat again that restaurant unit etc. produces in production and operation, contain multiple harmful composition.If do not recycled, not only waste valuable natural resources, also can cause secondary pollution, or flow into dining table again by the lawless person, the people's health is caused grave danger.Therefore, can turn waste into wealth, turn harm into good the comprehensive utilization of this class waste oil, have important practical significance.
Current, China mainly contains following approach to the recycling of catering trade waste oil: (1) directly saponification produces soap and washing powder; (2) the waste oil hydrolysis prepares Chemicals such as stearic acid, oleic acid, glycerine; (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 prepares the research of stearic acid and oleic acid, food science and technology, 2009,34,109-112; Dong Hong, Gao Jianfeng, Gu Guoli, Deng Xiaoyan. waste cooking oil is produced the research of biofuel. agricultural engineering technology (new forms of energy industry), 2009,4,31-33].Though these several approach can both effective recycling catering trade waste oil, all has some problem, low excessively as added values of product such as soap, stearic acid, the production of biodiesel technical difficulty is big etc.Therefore, be necessary further to explore the new way of the recycling of catering trade waste oil.
Solid alcohol is a kind of novel solid fuel, compares with liquid ethanol fuel, and it is long to have a combustion time, and flame temperature is even, and the calorific value deviation is less, and convenient attractive in appearance, advantage such as safety is portable is widely used in occasions such as catering trade, tourism and field work.The preparation method of current main-stream is to use the sodium stearate of stearic acid and sodium hydroxide reaction back generation as the alcohol solidifying agent.And the predecessor of waste oil is natural fats and oils, and its main component is triglyceride level, and the triglyceride level saponification can generate the mixture of sodium stearate and sodium oleate.Therefore, the saponification resultant of waste oil has the possibility as the solid alcohol peptizer.Yet, up to now, do not find with catering trade waste oil to be the report of raw material synthesis of solid alcohol.
Summary of the invention
It is the method for feedstock production solid alcohol with the waste cooking oil that the object of the invention is to provide a kind of, 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 flowing into dining table again and causing secondary pollution.
Concrete steps are:
(1) will add the Fuller's earth powder of waste oil massfraction 5% in the waste cooking oil, heating is 25 minutes in the constant temperature oil bath of 120 ° of C, and cooled and filtered obtains pretreated waste cooking oil.
(2) mass ratio in waste cooking oil and sodium hydroxide is the ratio weighing sodium hydroxide of 2:1, is formulated as massfraction and is 20% sodium hydroxide solution.
(3) the pretreated waste cooking oil that step (1) is 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, obtains saponification mixture after saponification reaction is finished.
(4) solid sodium chloride of waste cooking oil quality 60% is joined in the saponification mixture that step (2) makes and saltout, carry out suction filtration then while hot, the product behind the suction filtration is placed thermostatic drying chamber, drying is 4 hours under 105 ° of C, take out cooling, obtain saponification resultant.
(5) massfraction that takes by weighing 3 times of waste cooking oil quality is that 95% ethanolic soln joins in the saponification resultant of step (3) preparation, casting after oil bath heating for dissolving under 80 ° of C, and the cooling back forms the solid alcohol with solid shape.
Described waste cooking oil is: the oil that restaurant unit is eliminated after repeatedly food materials are roasted in frying, the oily end of restaurant unit culinary art or the waste oil in the smoke exhaust ventilator oil trap.
The solid alcohol that the present invention makes is translucent gelinite, and good uniformity is at room temperature stable, is convenient for carrying, and is cheap.This solid alcohol is easy to light, combustion time is long, average every gram alcohol combustion time is 80s, flame is even, free from extraneous odour, black smoke during burning, can be used 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 prevent effectively that waste cooking oil from flowing into dining table again and causing secondary pollution.
Embodiment
Embodiment 1:
(1) take by weighing waste oil 5 g in the smoke exhaust ventilator oil trap, add 0.25 g Fuller's earth powder, heating is 25 minutes in the oil bath of 120 ° of C, cooled and filtered.
(2) taking by weighing 2.5g sodium hydroxide is dissolved in the 10 g water and makes sodium hydroxide solution.
(3) waste oil after step (2) gained sodium hydroxide solution and step (1) processing is mixed in 100 mL flasks, reacting by heating is 4 hours under 80 ° of C oil baths.
(4) step (2) products therefrom is added the 3g solid sodium chloride while hot while stirring and saltout, suction filtration while hot places thermostatic drying chamber with the gained solid subsequently, under 105 ° of C dry 4 hours, take out cooling after.
(5) add the ethanolic soln of 15 g massfractions 95% in step (3) the gained saponification resultant, after heating for dissolving under 80 ° of C oil baths, casting namely obtains solid alcohol after the cooling.
Embodiment 2:
(1) take by weighing street restaurant's frying with waste oil 50 g, add 2.5 g Fuller's earth powder, heating is 25 minutes in the oil bath of 120 ° of C, cooled and filtered.
(2) sodium hydroxide solution 125 g of adding massfraction 20 % in step (1) product, reacting by heating is 4 hours under 100 ° of C oil baths.
(3) step (2) product is added 30 g solid sodium chloride while hot while stirring and saltout, suction filtration while hot places thermostatic drying chamber with the gained solid subsequently, under 105 ° of C dry 4 hours, takes out cooling.
(4) add 150 g massfractions, 95% ethanolic soln in step (3) gained saponification resultant, after heating for dissolving under 80 ° of C oil baths, casting namely obtains solid alcohol after the cooling.
Embodiment 3:
(1) take by weighing the g of the oily ends 10 that restaurant unit is cooked, add 0.5 g Fuller's earth powder, heating is 25 minutes in the oil bath of 120 ° of C, cooled and filtered.
(2) sodium hydroxide solution of adding 25 g massfractions 20 % in step (1) product, reacting by heating is 4 hours under 90 ° of C oil baths.
(3) step (2) product is added 6 g solid sodium chloride while hot while stirring and saltout, suction filtration while hot places thermostatic drying chamber with the gained solid subsequently, under 105 ° of C dry 4 hours, takes out cooling.
(4) add the ethanolic soln of 30 g massfractions 95% in step (3) the gained saponification resultant, after heating for dissolving under 80 ° of C oil baths, casting namely obtains solid alcohol after the cooling.
Claims (2)
1. one kind is the method for feedstock production solid alcohol with the waste cooking oil, it is characterized in that concrete steps are:
(1) will add the Fuller's earth powder of waste oil massfraction 5% in the waste cooking oil, heating is 25 minutes in the constant temperature oil bath of 120 ° of C, and cooled and filtered obtains pretreated waste cooking oil;
(2) mass ratio in waste cooking oil and sodium hydroxide is the ratio weighing sodium hydroxide of 2:1, is formulated as massfraction and is 20% sodium hydroxide solution;
(3) the pretreated waste cooking oil that step (1) is 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, obtains saponification mixture after saponification reaction is finished;
(4) solid sodium chloride of waste oil quality 60% is joined in the saponification mixture that step (2) makes and saltout, carry out suction filtration then while hot, the product behind the suction filtration is placed thermostatic drying chamber, drying is 4 hours under 105 ° of C, take out cooling, obtain saponification resultant;
(5) massfraction that takes by weighing 3 times of waste oil quality is that 95% ethanolic soln joins in the saponification resultant of step (3) preparation, casting after oil bath heating for dissolving under 80 ° of C, and the cooling back forms the solid alcohol with solid shape.
2. according to claim 1 is the method for feedstock production solid alcohol with the waste cooking oil, it is characterized in that described waste cooking oil is: the oil that restaurant unit is eliminated after repeatedly food materials are roasted in frying, the oily end of restaurant unit culinary art or the waste oil in the smoke exhaust ventilator oil trap.
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Cited By (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 |
| CN104804795A (en) * | 2015-03-31 | 2015-07-29 | 桂林理工大学 | Solid alcohol adopting waste cooking oil as raw material, preparation method of solid alcohol and equipment |
| CN104862080A (en) * | 2015-05-21 | 2015-08-26 | 贵阳市民族中学 | Method for producing hot pot fuel from gutter oil used 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 |
-
2013
- 2013-06-17 CN CN201310238229.4A patent/CN103265993B/en active Active
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 |
Cited By (8)
| 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 |
| WO2015061927A1 (en) * | 2013-10-31 | 2015-05-07 | 孙立 | Method for producing solid fuels with gutter oil |
| CN104804795A (en) * | 2015-03-31 | 2015-07-29 | 桂林理工大学 | Solid alcohol adopting waste cooking oil as raw material, preparation method of solid alcohol and equipment |
| CN104862080A (en) * | 2015-05-21 | 2015-08-26 | 贵阳市民族中学 | Method for producing hot pot fuel from gutter oil used 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 |
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| CN103265993B (en) | 2014-05-14 |
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