CN103224838A - Esterification reaction tower for producing biodiesel - Google Patents
Esterification reaction tower for producing biodiesel Download PDFInfo
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- CN103224838A CN103224838A CN2013101858922A CN201310185892A CN103224838A CN 103224838 A CN103224838 A CN 103224838A CN 2013101858922 A CN2013101858922 A CN 2013101858922A CN 201310185892 A CN201310185892 A CN 201310185892A CN 103224838 A CN103224838 A CN 103224838A
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- tower body
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- phase methanol
- outlet
- esterification reaction
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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
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Abstract
The invention discloses an esterification reaction tower for producing biodiesel. The invention is characterized by mainly comprising a tower body, a redistributor, deflector plates, an access hole, a distributor, a gas-phase methanol inlet, a discharge port, a water outlet, a heat-conducting oil inlet, a heat-conducting oil outlet, a heat-conducting oil jacket, a feed port, a water inlet, a safety valve, a thermometer, a pressure meter and a gas-phase methanol outlet, wherein the outer bottom of the tower body is respectively provided with the gas-phase methanol inlet and water outlet; the distributor on the inner bottom is communicated with a pipeline of the gas-phase methanol inlet; the lower part is provided with the heat-conducting oil jacket, heat-conducting oil inlet, heat-conducting oil outlet and access hole; the inner top is provided with the redistributor; the inner cylindrical wall is uniformly distributed with the plurality of deflector plates; and the outer top is provided with the feed port, water inlet and gas-phase methanol outlet. The invention has the characteristics of no need of catalyst, no environmental pollution, low reaction pressure, low reaction temperature, low energy consumption, low investment and operating cost, wide application range of raw materials, high yield and the like.
Description
Affiliated technical field
The invention belongs to technical field of chemical, specifically a kind of esterification reaction tower of production biofuel.
Background technology
Growing tension along with the international energy situation, particularly carry out energetically under the background of energy-saving and emission-reduction in country, biofuel is as a kind of renewable new forms of energy, can be used as oil-fired substitute products, be subjected to the extensive concern of the whole society gradually, " biofuel " maximum characteristics are its recyclabilities, and resource is exhausted never.Biofuel can vegetables oil, animal oil is the raw material manufacturing, but many at present be raw materials for production with lipid acid, swill oil, city sewer oil, refining tankage.Discarded food oils are the animal and plant grease that can not eat again that food and drink restaurant and food processing enterprises produce in production, business process, comprise through repeatedly fry in shallow oil, depleted grease after the fried food, because these waste oils all enter sewer line or oil removal in the slag sewage lagoon, therefore be commonly called as sewer oil.Along with China's food service industry and food and restaurant service industry develop rapidly, the annual discarded food oils that produce are also more and more, and " utilizing again " production biofuel of discarded food oils is a kind of effective way of containment " poison oil ".Present domestic biodiesel technology respectively has characteristics, mainly contains three kinds of production technique, is respectively chemical method, supercritical methanol technology and biological enzyme.The chemical process comparative maturity, mainly contain soda acid Process, solid acid Process etc., belong to atmospheric preparation method, but need use bronsted lowry acids and bases bronsted lowry, exist serious environmental to pollute as catalyzer, influence quality product, acid-base catalysis process catalyst cost is lower, and is relatively good to the acidifying oil effect of high acid value, not good enough to the grease reaction effect of low acid value, and sulfuric acid process has certain corrosion and infringement to equipment, grease, environment, and product yield is low; The principle of solid acid technology is fallen acid value to the raw material glycerine esterification exactly, and equipment and grease are not had corrodibility, but need wash resultant methyl esters and glycerine, pickling and neutralization, so also produce the waste water that environment is caused environmental pollution, energy consumption is higher, and yield is lower, glycerin treatment cost height; Supercritical methanol technology arts demand High Temperature High Pressure, temperature of reaction 280-350 ℃, reaction pressure 4Mpa, speed of reaction is fast, transformation efficiency is high, pollution-free, adopt tubular reactor, successive reaction, the level of automation height reduces personnel selection, catalyst-free, but need initiator, to the equipment requirements height, investment and running cost height, to ingredient requirement height, poor selectivity, be suitable for abundant single vegetables oil, animal oil is the raw material manufacturing, when utilizing sewer oil to make raw material, need be to raw material processing treatment and sizing screening; Subcritical method technology, substantially with supercritical methanol technology technology, temperature, pressure reduce a little, and temperature of reaction 260-280 ℃, reaction pressure 2Mpa, catalyst-free, but long reaction time; The reaction conditions gentleness of biological process technology, adaptability to raw material is wide, non-pollutant discharge and need not washing, but its life-span for preparing used lipase is shorter usually, causes the catalytic process cost higher.A kind of technical matters of production biofuel has been invented by our company, mainly be by reaction that raw oil material, softening water are hydrolyzed, generate lipid acid, carry out esterification under certain condition with methyl alcohol again through the isolated lipid acid of wet cyclone, producing crude fatty acid methyl ester separates, utilize distillation tower that crude fatty acid methyl ester is distilled, separate obtaining fatty acid methyl ester---biofuel.The crucial preparation facilities of realizing this technical matters is an esterification reaction tower.
Summary of the invention
The objective of the invention is: overcome in the existing production of biodiesel Technology, need catalyzer, environmental pollution is serious, reaction pressure, temperature are higher, to the equipment requirements height, investment and running cost height, to ingredient requirement height, poor selectivity, long reaction time, energy consumption height, the shortcoming of aspects such as yield is low, providing a kind of does not need to use catalyzer, non-environmental-pollution, reaction pressure and temperature of reaction lower, less energy consumption, and investment and running cost are low, the raw material scope of application is extensive, the esterification reaction tower of the production biofuel that yield is high.
The technical solution adopted for the present invention to solve the technical problems is: the esterification reaction tower of this production biofuel is mainly by tower body, heavily divide device, traverse baffle, access opening, sparger, gas-phase methanol import, discharge port, water outlet, heat conductive oil inlet, thermal oil outlet, thermal oil chuck, opening for feed, water-in, safety valve, thermometer, tensimeter, gas-phase methanol outlet to form; The outer bottom of described tower body is installed gas-phase methanol import, discharge port, water outlet respectively; The inner bottom part of described tower body is provided with sparger, and this sparger is connected with the pipeline of gas-phase methanol import; The Lower Half of described tower body is provided with thermal oil chuck, heat conductive oil inlet, thermal oil outlet, access opening; The inner top of described tower body is provided with and heavily divides device; Uniform distribution is provided with several traverse baffles on the interior drum wall of described tower body; The outer top of described tower body is provided with opening for feed, water-in, safety valve, thermometer, tensimeter, gas-phase methanol outlet.
The invention has the beneficial effects as follows: the esterification reaction tower that adopts the production biofuel of the present invention of said structure, the sparger that the tower body inner bottom part is provided with can enter the intravital gas-phase methanol of tower to the import of process gas-phase methanol and upwards be distributed in the lipid acid liquid comparatively equably; The heavily branch device that the tower body inner top is provided with can appropriate stop the discharge of gas-phase methanol; Uniform distribution is provided with several traverse baffles on the drum wall of tower body inside, gas-phase methanol is turned back in the baffling passage of its formation advance.Thereby increase the reaction times of gas-phase methanol and lipid acid liquid, improve speed of response, increase product yield.
Improve as the present invention, device was provided with thrust-augmenting nozzle in described heavy minute, the upper end of this thrust-augmenting nozzle is connected heavily to be divided on the device, insert below the lipid acid liquid level lower end, help reacting with lipid acid, improve speed of response heavily dividing the gas-phase methanol of collecting on the device to import in the lipid acid liquid, reduce the reaction times, improve product yield.
As a further improvement on the present invention, be provided with the thermal oil coil pipe in the described tower body, the two ends of this thermal oil coil pipe are connected with the thermal oil chuck respectively, can further improve heating efficiency and uniformity coefficient, improve speed of response, reduce the reaction times, improve product yield, reduce production energy consumption.
As a further improvement on the present invention, described traverse baffle and tower body are 20-30 ° of angle, help gas-phase methanol and the lipid acid liquid mixture forms eddy flow in tower body, strengthen gas-phase methanol and lipid acid liquid mixing effect, improve speed of response, reduce the reaction times, improve product yield.
Description of drawings
Be described further below in conjunction with the esterification reaction tower of drawings and Examples production biofuel of the present invention.
Accompanying drawing is the cross-sectional view of the esterification reaction tower embodiment of production biofuel of the present invention.
Among the figure: 1, gas-phase methanol outlet, 2, tensimeter, 3, heavily divide device, 4, thrust-augmenting nozzle, 5, thermal oil chuck, 6, the eddy flow plate, 7, access opening, 8, the gas-phase methanol import, 9, discharge port, 10, water outlet, 11, the thermal oil outlet, 12, heat conductive oil inlet, 13, thermometer, 14, safety valve, 15, thermal oil coil pipe, 16, tower body, 17, sparger, 18, opening for feed, 19, water-in, 20, the lipid acid liquid level.
Embodiment
As shown in drawings, the esterification reaction tower of this production biofuel is mainly by tower body 16, heavily divide device 3, traverse baffle 6, access opening 7, sparger 17, gas-phase methanol import 8, discharge port 9, water outlet 10, heat conductive oil inlet 11, thermal oil outlet 12, thermal oil chuck 5, opening for feed 18, water-in 19, safety valve 14, thermometer 13, tensimeter 2, gas-phase methanol outlet 1 to form; The outer bottom of described tower body 16 is installed gas-phase methanol import 8, discharge port 9, water outlet 10 respectively; The inner bottom part of described tower body 16 is provided with sparger 17, and this sparger 17 is connected with the pipeline of gas-phase methanol import 8; The Lower Half of described tower body 16 is provided with thermal oil chuck 5, heat conductive oil inlet 11, thermal oil outlet 12, access opening 7; The inner top of described tower body 16 is provided with and heavily divides device 3; Uniform distribution is provided with several traverse baffles 6 on the interior drum wall of described tower body 16; The outer top of described tower body 16 is provided with opening for feed 18, water-in 19, safety valve 14, thermometer 13, tensimeter 2, gas-phase methanol outlet 1.
The crucial preparation facilities reaction tower of the technical matters of the production biofuel of the present invention of employing said structure, the sparger 17 that tower body 16 inner bottom parts are provided with can upwards be distributed to the gas-phase methanol that enters in the tower body 16 through gas-phase methanol import 8 in the lipid acid liquid comparatively equably; The heavily branch device 3 that tower body 16 inner tops are provided with can appropriate stop the discharge of gas-phase methanol; Uniform distribution is provided with several traverse baffles 6 on the drum wall of tower body 16 inside, gas-phase methanol is turned back in the baffling passage of its formation advance.Thereby increase the reaction times of gas-phase methanol and lipid acid liquid, improve speed of response, increase product yield.
As shown in drawings, improvement as the crucial preparation facilities of production biofuel of the present invention, device 3 was provided with thrust-augmenting nozzle 4 in described heavy minute, the upper end of this thrust-augmenting nozzle 4 is connected heavily to be divided on the device 3, and the lipid acid liquid level is inserted below 20 in the lower end, helps heavily dividing the gas-phase methanol of collecting on the device 3 to import in the lipid acid liquid, react with lipid acid, improve speed of response, reduce the reaction times, improve product yield.
As shown in drawings, further improvement as the crucial preparation facilities of production biofuel of the present invention, be provided with thermal oil coil pipe 15 in the described tower body 16, the two ends of this thermal oil coil pipe 15 are connected with thermal oil chuck 5 respectively, can further improve heating efficiency and uniformity coefficient, improve speed of response, reduce the reaction times, improve product yield, reduce production energy consumption.
As shown in drawings, further improvement as the crucial preparation facilities of production biofuel of the present invention, described traverse baffle 6 is 20-30 ° of angle with tower body 16, help gas-phase methanol and lipid acid liquid mixture and in tower body 16, form eddy flow, strengthen gas-phase methanol and lipid acid liquid mixing effect, improve speed of response, reduce the reaction times, improve product yield.
Claims (5)
1. esterification reaction tower of producing biofuel is characterized in that: this esterification reaction tower is mainly by tower body (16), heavily divide device (3), traverse baffle (6), access opening (7), sparger (17), gas-phase methanol import (8), discharge port (9), water outlet (10), heat conductive oil inlet (11), thermal oil outlet (12), thermal oil chuck (5), opening for feed (18), water-in (19), safety valve (14), thermometer (13), tensimeter (2), gas-phase methanol outlet (1) to form; The outer bottom of described tower body (16) is installed gas-phase methanol import (8), discharge port (9), water outlet (10) respectively; The inner bottom part of described tower body (16) is provided with sparger (17), and this sparger (17) is connected with the pipeline of gas-phase methanol import (8); The Lower Half of described tower body (16) is provided with thermal oil chuck (5), heat conductive oil inlet (11), thermal oil outlet (12), access opening (7); The inner top of described tower body (16) is provided with and heavily divides device (3); Uniform distribution is provided with several traverse baffles (6) on the interior drum wall of described tower body (16); The outer top of described tower body (16) is provided with opening for feed (18), water-in (19), safety valve (14), thermometer (13), tensimeter (2), gas-phase methanol outlet (1).
2. the esterification reaction tower of production biofuel according to claim 1, it is characterized in that: described heavy minute device (3) be provided with some thrust-augmenting nozzles (4), the upper end of this thrust-augmenting nozzle (4) is connected heavily divides device (on 3), and insert below the lipid acid liquid level (20) lower end.
3. the esterification reaction tower of production biofuel according to claim 1 and 2 is characterized in that: be provided with thermal oil coil pipe (15) in the described tower body (16), the two ends of this thermal oil coil pipe (15) are connected with thermal oil chuck (5) respectively.
4. the esterification reaction tower of production biofuel according to claim 1 and 2 is characterized in that: described traverse baffle (6) is 20-30 ° of angle with tower body (16).
5. the esterification reaction tower of production biofuel according to claim 3 is characterized in that: described traverse baffle (6) is 20-30 ° of angle with tower body (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101858922A CN103224838A (en) | 2013-05-20 | 2013-05-20 | Esterification reaction tower for producing biodiesel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101858922A CN103224838A (en) | 2013-05-20 | 2013-05-20 | Esterification reaction tower for producing biodiesel |
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| CN103224838A true CN103224838A (en) | 2013-07-31 |
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| CN2013101858922A Pending CN103224838A (en) | 2013-05-20 | 2013-05-20 | Esterification reaction tower for producing biodiesel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190591A (en) * | 2015-08-27 | 2016-12-07 | 上海中器环保科技有限公司 | The esterification of a kind of biodiesel, ester exchange reaction method |
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2013
- 2013-05-20 CN CN2013101858922A patent/CN103224838A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106190591A (en) * | 2015-08-27 | 2016-12-07 | 上海中器环保科技有限公司 | The esterification of a kind of biodiesel, ester exchange reaction method |
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Application publication date: 20130731 |