CN107694138A - Rectifier unit, method and its application for fusel oil - Google Patents
Rectifier unit, method and its application for fusel oil Download PDFInfo
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- CN107694138A CN107694138A CN201710942115.6A CN201710942115A CN107694138A CN 107694138 A CN107694138 A CN 107694138A CN 201710942115 A CN201710942115 A CN 201710942115A CN 107694138 A CN107694138 A CN 107694138A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
- B01D3/146—Multiple effect distillation
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
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Abstract
A kind of rectifier unit for fusel oil, method and its application, include the tower body group for separated processing, the reboiler being arranged between minor details tower body thermal source port in first section tower body releaser port in tower body group and tower body group, by reboiler to the first heat exchange for saving tower body releaser, meet the needs of minor details tower body thermal source in tower body group, batch distillation is no longer used, therefore reduces the consumption of heat.
Description
Technical field
The present invention relates to a kind of rectifier unit, method and its application, especially a kind of rectifier unit for fusel oil, side
Method and its application.
Background technology
Alcohol industry is basic material industry, and its product is used for food, chemical industry, military project, medicine and other fields：Fusel oil be with
Starch or molasses are one of accessory substance that raw material produces alcohol, are breaks down proteins and the secondary hydrolysis of mycoprotein in fermentation raw material
Product, be the general designation containing a variety of alcohols mixed liquors, the growing amount of fusel oil is related to fermentation raw material and technique, generally generates
Amount accounts for the 0.3%-0.8% of alcohol output.Fusel oil is a kind of pale yellow oily liquid, there is off-odor and toxicity, its master
It is the aldehyde of isoamyl alcohol, isobutanol, normal propyl alcohol, ethanol, water and a small amount of boiling point more than 135 DEG C, alcohol, ester, acid, unsaturated terpene to want composition
Vinyl compound etc., up to 22 kinds of complicated ingredients, it is high to be that raw material can go out tens of kinds of added values with deep processing development with fusel oil
Fine chemical product, these products suffer from being widely applied in the industries such as plastics, coating, feed, chemical industry, food, medicine,
In existing rectifier unit for fusel oil, method and its application, fusel oil separation generally uses batch distillation, fusel
Oil is beaten to stirring in drain sump from storage tank with pump, is added a certain proportion of Nacl i.e. dehydrating agent and is stirred dehydration, through sinking
Form sediment and separate.Recycled after salt and water are released, the fusel oil after dehydration is delivered to distillation still with pump, is heated by reboiler
Distillation, it is different according to the boiling point of component, distillation tower top temperature is controlled, different products can be obtained, the product of taking-up passes through
After condenser cooling, sampling analysis is qualified to enter pans, finally with being pumped into product storage tank or barreled export trade.Underproof time
Into distillation still, continue to heat up, heat, separate.Existing device is distillation indirectly, and the quantity of steam of consumption is big and can not continuously give birth to
Production, is not convenient to use Automated condtrol, and the lifting of the yield and quality to product has very big restriction, and the partial devices also having are adopted
It is atmospheric distillation mode, a tower isolates a kind of component, solves continuous production, the problem of being easy to Automated condtrol,
But steam consumption is big.
Based on existing technical problem, technical characteristic and technique effect, application technical scheme of the invention is made.
The content of the invention
The object of the present invention is a kind of rectifier unit for fusel oil,
The object of the present invention is a kind of rectificating method for fusel oil,
The object of the present invention is the application of a kind of rectifier unit for fusel oil and method.
In order to overcome above-mentioned technical disadvantages, it is an object of the invention to provide a kind of rectifier unit for fusel oil, method
And its application, therefore reduce the consumption of heat.
To reach above-mentioned purpose, the present invention adopts the technical scheme that：A kind of rectifier unit for fusel oil, include
Tower body group for separated processing, it is arranged to and minor details tower body in first section tower body releaser port and tower body group in tower body group
Reboiler between thermal source port.
Due to devising tower body group and reboiler, by reboiler to the first heat exchange for saving tower body releaser, meet tower
The needs of minor details tower body thermal source in body group, no longer using batch distillation, therefore reduce the consumption of heat.
The present invention is devised, and tower body group is mutually interconnected with reboiler in the way of extraction heat energy is set between tower body
Connect.
The present invention devises, in tower body group the pressure of first section tower body and the pressure of minor details tower body in tower body group be arranged to according to
The mode successively decreased is distributed.
The present invention devises, and also includes the first condenser and the second condenser, and tower body group is arranged to include the first tower
Body, the second tower body and the 3rd tower body,
The bottom port that raw material input port and the first tower body are provided with the middle part of the first tower body is arranged to first point
From thing port, the top port of the first tower body is arranged to connect with the input port of reboiler and the output port of reboiler point
It is not arranged to connect with the backflow of the top port of the first tower body and the Centronics port of the second tower body connects, the bottom end of the second tower body
Mouth is arranged to the second isolate port and the top port of the second tower body and is arranged to connect with the input port of the second condenser,
The output port of second condenser be respectively set to the top port of the second tower body backflow connect, the Centronics port of the 3rd tower body
Connect and the bottom port of the 3rd tower body is arranged to the 4th isolate port, the top port of the 3rd tower body is arranged to and first
The input port connection of condenser and the output port of the first condenser are arranged to and the top port of the 3rd tower body backflow company
Logical, the output port of the first condenser is arranged to the 3rd isolate port, and the heat of reboiler is arranged to and the 3rd by switching port
The thermal source port connection of tower body.
The present invention devises, and the first tower body, the second tower body and the 3rd tower body are respectively set to separated tower.
The present invention devises, and the first tower body is arranged to positive-pressure type tower body and the second tower body and the 3rd tower body are respectively set to
Normal pressure or suction type tower body.
The present invention devises, and reboiler is arranged to the input port of heat exchanger and reboiler and output port is arranged to
Thermal source switching port.
The present invention devises, and the first condenser and the second condenser are respectively set to heat abstractor.
The present invention is devised, and the first tower body and the second tower body and the 3rd tower body are arranged to according to formation isolate discharge port
The mode of group is distributed and the first tower body and the 3rd tower body and reboiler are arranged in the way of heat conversion divide among formed
Cloth.
The present invention devises, a kind of rectificating method for fusel oil, and its step is：Fusel oil is 0.2- in pressure
0.4MPa, temperature are that 130-150 °C of the first tower body obtains isoamyl alcohol, and the releaser of the first tower body is 0.1- in pressure
0.15MPa, temperature are that 108-115 °C of the second tower body obtains isobutanol, and the releaser of the second tower body is 0.04- in pressure
0.1MPa, the 3rd tower body that temperature is 97-106 °C obtain normal propyl alcohol and ethanol.
The present invention devises, and its step is：
The fusel oil of alcohol separated is injected into the first tower body, keep the first tower body in pressure for 0.2-0.4MPa,
Temperature is 130-150 °C, and isolate isoamyl alcohol, the top port output of the first tower body are obtained in the bottom port of the first tower body
By being input to after the heat exchange of reboiler in the second tower body, the pressure in the second tower body of holding is 0.1-0.15MPa, temperature is
108-115 °C, isolate isobutanol is obtained in the bottom port of the second tower body, the top port output of the second tower body passes through
It is input to after the radiating of two condensers in the 3rd tower body, the pressure in the 3rd tower body of holding is 0.04-0.1MPa, temperature 97-
106 °C, isolate normal propyl alcohol is obtained in the bottom port of the 3rd tower body, the top port output of the 3rd tower body is cold by first
After the radiating of condenser isolate ethanol is obtained in output port.
The present invention devises, and its step is：
The fusel oil of alcohol separated is injected into the first tower body, it is 0.36MPa, temperature to keep the pressure in the first tower body
For 138 °C, isolate isoamyl alcohol is obtained in the bottom port of the first tower body, the top port output of the first tower body by boiling again
It is input to after the heat exchange of device in the second tower body, the pressure in the second tower body of holding is 0.14MPa, temperature is 115 °C, second
The bottom port of tower body obtains isolate isobutanol, after the radiating of the top port output of the second tower body by the second condenser
It is input in the 3rd tower body, the pressure in the 3rd tower body of holding is 0.05MPa, temperature is 100 °C, at the bottom end of the 3rd tower body
Mouth obtains isolate normal propyl alcohol, is obtained after the radiating that the top port output of the 3rd tower body passes through the first condenser in output port
To isolate ethanol.
The present invention is devised, and a kind of rectifier unit and method for fusel oil is produced in alcohol distillation residue fusel oil
The application of isoamyl alcohol, isobutanol, normal propyl alcohol and ethanol.
The present invention devises, and a kind of rectifier unit and method for fusel oil is 0.2- in fusel oil successively pressure
It is 108-115 °C that the distillation that 0.4MPa, temperature are 130-150 °C, which handles to obtain isoamyl alcohol, pressure 0.1-0.15PMa, temperature,
Distillation handle to obtain the distillation that isobutanol, pressure 0.04-0.1MPa, temperature are 97-106 °C and handle to obtain normal propyl alcohol and second
The application of alcohol.
The technical effects of the invention are that：After the mode using differential distillation, the quantity of steam used reduces about 20%, follows
The usage amount of ring water reduces about 20%, and compared with air-distillation mode, the quantity and floor space of equipment have been reduced, and improves pressure
Power, appropriate raising is had to the quality of separation component, moisture can use azeotropic dehydration method, quick lime evaporation, salt condensation for removing water
Method or the removing of adsorption dewatering technology.Aldehyde and unsaturated terpene compound easily quilt in non alcohol impurity contained by thick fusel oil after dehydration
Oxidant destroys, and from alkalinity potassium permanganate, formoxy- chemical conversion acid is dissolved in alkali and is removed, and the unsaturation of oxidable terpenes
Double bond., almost can be all cleared by organic base with sulfuric acid treatment for organic bases such as pyridines, residual acid is neutralized with calcium oxide.By
Chemical subtraction refines, and isobutanol, isoamyl alcohol content slightly increase.Fusel oil acid number after refined generally reduces, and color and luster is changed into nothing
Color is transparent, this product quality to next rectification working process improve it is highly beneficial, in rectification working process, the alcohol that contains in fusel oil
Class component is a lot, can according to the actual demand of user oneself, isolate oneself needs component, remaining can be used as liquid waste processing or
Person separately does him and used, and the component ratio in fusel oil is different with boiling point, is greatly classified into a few class components, the characteristic of each component
Such as following table：
| Project | Isoamyl alcohol is 1. | Isobutanol is 2. | Ethanol is 3. | Normal propyl alcohol is 4. |
| Molecular weight | 88 | 74 | 46 | 60 |
| Boiling point DEG C | 130 | 108 | 78 | 97 |
| Density g/ml | 0.809 | 0.802 | 0.789 | 0.8 |
In the technical program, between tower body set extraction heat energy tower body group and reboiler be important technical characteristic, with
Rectifier unit in fusel oil, in the technical field of method and its application, there is novelty, creativeness and practicality, in this skill
Term in art scheme is all that can be explained and understood with patent document in the art.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the rectifier unit for fusel oil of the present invention.
Embodiment
According to guidelines for examination, such as " having ", "comprising" and " comprising " term used in the present invention should be understood
Not allot the presence or addition of one or more of the other element or its combination.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It is be combined with each other into conflict can.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
A kind of rectifier unit for fusel oil, Fig. 1 are one embodiment of the present of invention, and this reality is illustrated with reference to accompanying drawing
Example is applied, includes the first tower body 1, the second tower body 2, the 3rd tower body 3, reboiler 4, the first condenser 5 and the second condenser 6,
The bottom port that raw material input port and the first tower body 1 are provided with the middle part of the first tower body 1 is arranged to first
Isolate port, the top port of the first tower body 1 is arranged to connect with the input port of reboiler 4 and the output of reboiler 4
Port is respectively set to connect with the backflow of the top port of the first tower body 1 and the Centronics port of the second tower body 2 connects, the second tower body
2 bottom port is arranged to the second isolate port and the top port of the second tower body 2 and is arranged to defeated with the second condenser 6
Inbound port connects, and the output port of the second condenser 6 is respectively set to connect with the backflow of the top port of the second tower body 2, the 3rd
The Centronics port of tower body 3 connects and the bottom port of the 3rd tower body 3 is arranged to the 4th isolate port, the top of the 3rd tower body 3
End port is arranged to connect with the input port of the first condenser 5 and the output port of the first condenser 5 is arranged to and the 3rd
The top port backflow connection of tower body 3, the output port of the first condenser 5 are arranged to the 3rd isolate port, the heat of reboiler 4
It is arranged to connect with the thermal source port of the 3rd tower body 3 by switching port.
In the present embodiment, the first tower body 1, the second tower body 2 and the 3rd tower body 3 are respectively set to separated tower.
By the first tower body 1, the support tie point to the tower body 3 of reboiler 4 and the 3rd is formd, by the first tower body 1, is realized
To the output of the first isolate, the connection with reboiler 4 is realized, by the second tower body 2, form to the second condenser 6
Support tie point, by the second tower body 2, realize the output to the second isolate, by the 3rd tower body 3, form cold to first
The support tie point of condenser 5, by the 3rd tower body 3, the output to third and fourth isolate is realized, realized and the first condenser 5
Connection.
In the present embodiment, the first tower body 1 is arranged to positive-pressure type tower body and the second tower body 2 and the 3rd tower body 3 are set respectively
It is set to normal pressure or suction type tower body.
By the first tower body 1, connecting and as the thermal source of the 3rd tower body 3 to reboiler 4 is realized.
In the present embodiment, reboiler 4 is arranged to the input port of heat exchanger and reboiler 4 and output port is set
For thermal source switching port.
By reboiler 4, the support tie point to the 3rd tower body 3 is formd, by reboiler 4, is realized and the 3rd tower body 3
Connection.
In the present embodiment, the first condenser 5 and the second condenser 6 are respectively set to heat abstractor.
By the second condenser 6, form the support tie point to the 3rd tower body 3, by the second condenser 6, realize with
The connection of 3rd tower body 3, by the first condenser 5, realize the port discharge to isolate.
In the present embodiment, the first tower body 1 and the second tower body 2 and the 3rd tower body 3 are arranged to according to formation isolate discharge
The mode of port set is distributed and the first tower body 1 and the 3rd tower body 3 are arranged to according to heat conversion among being formed with reboiler 4
Mode is distributed.
With reference to embodiment, the present invention is further described, following examples are intended to illustrate invention rather than to this
The further restriction of invention.A kind of rectificating method for fusel oil, one embodiment, its step are：
The fusel oil of alcohol separated is injected into the first tower body 1, it is 0.2MPa, temperature to keep the pressure in the first tower body 1
Spend for 130 °C, isolate isoamyl alcohol is obtained in the bottom port of the first tower body 1, the top port output of the first tower body 1 passes through
It is input to after the heat exchange of reboiler 4 in second tower body 2, the pressure in the second tower body 2 of holding is 0.1MPa, temperature is 108 °C,
Isolate isobutanol is obtained in the bottom port of the second tower body 2, the top port output of the second tower body 2 passes through the second condenser
It is input to after 6 radiating in the 3rd tower body 3, the pressure in the 3rd tower body 3 of holding is 0.04MPa, temperature is 97 °C, in the 3rd tower
The bottom port of body 3 obtains isolate normal propyl alcohol, the radiating that the top port output of the 3rd tower body 3 passes through the first condenser 5
Afterwards isolate ethanol is obtained in output port.
After such a differential pressure mode, the usage amount of steam more all by the way of normal pressure, saves 20% or so, heat
After recycling, recirculated water saves 20% or so.
3rd embodiment, its step are：
The fusel oil of alcohol separated is injected into the first tower body 1, it is 0.4MPa, temperature to keep the pressure in the first tower body 1
Spend for 150 °C, isolate isoamyl alcohol is obtained in the bottom port of the first tower body 1, the top port output of the first tower body 1 passes through
It is input to after the heat exchange of reboiler 4 in second tower body 2, the pressure in the second tower body 2 of holding is 0.15MPa, temperature is 115 °
C, isolate isobutanol is obtained in the bottom port of the second tower body 2, and the top port output of the second tower body 2 passes through the second condensation
It is input to after the radiating of device 6 in the 3rd tower body 3, the pressure in the 3rd tower body 3 of holding is 0.1MPa, temperature is 106 °C, the 3rd
The bottom port of tower body 3 obtains isolate normal propyl alcohol, top port output the dissipating by the first condenser 5 of the 3rd tower body 3
After heat isolate ethanol is obtained in output port.
3rd embodiment, its step are：
The fusel oil of alcohol separated is injected into the first tower body 1, it is 0.2- to keep the pressure in the first tower body 1
0.4MPa, temperature are 130-150 °C, and isolate isoamyl alcohol, the top of the first tower body 1 are obtained in the bottom port of the first tower body 1
Port output is input to after the heat exchange by reboiler 4 in second tower body 2, and it is 0.1- to keep the pressure in the second tower body 2
0.15MPa, temperature are 108-115 °C, and isolate isobutanol, the top of the second tower body 2 are obtained in the bottom port of the second tower body 2
Port output is input in the 3rd tower body 3 after the radiating by the second condenser 6, and the pressure in the 3rd tower body 3 of holding is
0.04-0.1MPa, temperature are 97-106 °C, and isolate normal propyl alcohol is obtained in the bottom port of the 3rd tower body 3, the 3rd tower body 3
After the radiating that top port output passes through the first condenser 5 isolate ethanol is obtained in output port.
4th embodiment, its step are：
The fusel oil of alcohol separated is injected into the first tower body 1, it is 0.3MPa, temperature to keep the pressure in the first tower body 1
Spend for 140 °C, isolate isoamyl alcohol is obtained in the bottom port of the first tower body 1, the top port output of the first tower body 1 passes through
It is input to after the heat exchange of reboiler 4 in second tower body 2, the pressure in the second tower body 2 of holding is 0.12MPa, temperature is 112 °
C, isolate isobutanol is obtained in the bottom port of the second tower body 2, and the top port output of the second tower body 2 passes through the second condensation
It is input to after the radiating of device 6 in the 3rd tower body 3, to keep the pressure in the 3rd tower body 3 be 0.07MPa, temperature is 101 °C, the
The bottom port of three tower bodies 3 obtains isolate normal propyl alcohol, and the top port output of the 3rd tower body 3 passes through the first condenser 5
After radiating isolate ethanol is obtained in output port.
5th embodiment, its step are：
The fusel oil of alcohol separated is injected into the first tower body 1, it is 0.36MPa, temperature to keep the pressure in the first tower body 1
Spend for 138 °C, isolate isoamyl alcohol is obtained in the bottom port of the first tower body 1, the top port output of the first tower body 1 passes through
It is input to after the heat exchange of reboiler 4 in second tower body 2, the pressure in the second tower body 2 of holding is 0.14MPa, temperature is 115 °
C, isolate isobutanol is obtained in the bottom port of the second tower body 2, and the top port output of the second tower body 2 passes through the second condensation
It is input to after the radiating of device 6 in the 3rd tower body 3, to keep the pressure in the 3rd tower body 3 be 0.05MPa, temperature is 100 °C, the
The bottom port of three tower bodies 3 obtains isolate normal propyl alcohol, and the top port output of the 3rd tower body 3 passes through the first condenser 5
After radiating isolate ethanol is obtained in output port.
For the outfit of each technique of the 5th embodiment of the rectificating method of fusel oil, to the purity and output of normal propyl alcohol
Than best.
A kind of rectifier unit and method for fusel oil produces isoamyl alcohol, isobutyl in alcohol distillation residue fusel oil
The application of alcohol, normal propyl alcohol and ethanol
One embodiment, a kind of rectifier unit and method for fusel oil are 0.2MPa, temperature in fusel oil successively pressure
Handle to obtain isoamyl alcohol for 130 °C of distillations, pressure 0.1PMa, the distillation that temperature is 108 °C handle to obtain isobutanol, pressure
Handle to obtain the application of normal propyl alcohol and ethanol for the distillation that 0.04MPa, temperature are 97 °C.
Second embodiment, a kind of rectifier unit and method for fusel oil fusel oil successively pressure be 0.4MPa,
Temperature is that 150 °C of distillation handles to obtain isoamyl alcohol, pressure 0.15PMa, the distillation that temperature is 115 °C handle to obtain isobutyl
Alcohol, pressure 0.1MPa, the distillation that temperature is 106 °C handle to obtain the application of normal propyl alcohol and ethanol.
3rd embodiment, a kind of rectifier unit and method for fusel oil are 0.2- in fusel oil successively pressure
It is 108-115 °C that the distillation that 0.4MPa, temperature are 130-150 °C, which handles to obtain isoamyl alcohol, pressure 0.1-0.15PMa, temperature,
Distillation handle to obtain the distillation that isobutanol, pressure 0.04-0.1MPa, temperature are 97-106 °C and handle to obtain normal propyl alcohol and second
The application of alcohol.
4th embodiment, a kind of rectifier unit and method for fusel oil fusel oil successively pressure be 0.3MPa,
Temperature is that 140 °C of distillation handles to obtain isoamyl alcohol, pressure 0.13PMa, the distillation that temperature is 113 °C handle to obtain isobutyl
Alcohol, pressure 0.07MPa, the distillation that temperature is 102 °C handle to obtain the application of normal propyl alcohol and ethanol.
The present invention has lower feature：
1st, due to devising tower body group and reboiler 4, by reboiler 4 to the first heat exchange for saving tower body releaser, tower is met
The needs of minor details tower body thermal source in body group, no longer using batch distillation, therefore reduce the consumption of heat.
2nd, due to devising the first condenser 5, the temperature needs of the separated of the 3rd tower body 3 are met.
3rd, due to devising the second condenser 6, the precipitation needs of isolate are met.
4th, due to devising the first tower body 1, the second tower body 2 and the 3rd tower body 3, by the difference of internal pressure, realize
Successional separated processing.
5th, the restriction of number range has been carried out to planform due to devising, has made technical side of the number range for the present invention
Technical characteristic in case, is not the technical characteristic for being calculated by formula or being drawn by limited number of time experiment, and experiment shows the numerical value
The technical characteristic of scope achieves good technique effect.
6th, due to devising the technical characteristic of the present invention, in the effect of the independent and mutual set of technical characteristic,
Shown by experiment, property indices of the invention are at least 1.7 times for existing property indices, have by assessing
There is good market value.
It is also other to be all with the tower body groups of setting extraction heat energy and reboiler 4 couple between tower body technical characteristic
One of embodiments of the invention, and each technical characteristic of embodiment described above can be combined arbitrarily, it is special to meet
The requirement of sharp method, patent regulation and guidelines for examination, it is no longer all possible to each technical characteristic in above-described embodiment
The embodiment of combination is all described.
Above-described embodiment is that rectifier unit provided by the present invention for fusel oil, one kind of method and its application are real
Existing form, according to other deformations of scheme provided by the present invention, increase and either reduce composition therein or step or incite somebody to action this
Invent for other technical fields close with the present invention, belong to protection scope of the present invention.
Claims (10)
1. a kind of rectifier unit for fusel oil, it is characterized in that：Include the tower body group for separated processing, be arranged to
With the reboiler between minor details tower body thermal source port in first section tower body releaser port in tower body group and tower body group（4）.
2. the rectifier unit according to claim 1 for fusel oil, it is characterized in that：Extracted according to being set between tower body
The mode of heat energy is tower body group and reboiler（4）It is coupled to each other.
3. the rectifier unit according to claim 1 for fusel oil, it is characterized in that：The pressure of first section tower body in tower body group
It is arranged to be distributed in the way of successively decreasing with the pressure of minor details tower body in tower body group.
4. the rectifier unit according to claim 1 for fusel oil, it is characterized in that：Also include the first condenser（5）
With the second condenser（6）, tower body group is arranged to include the first tower body（1）, the second tower body（2）With the 3rd tower body（3）,
In the first tower body（1）Middle part be provided with raw material input port and the first tower body（1）Bottom port be arranged to
First isolate port, the first tower body（1）Top port be arranged to and reboiler（4）Input port connection and reboiler
（4）Output port be respectively set to and the first tower body（1）Top port backflow connection and the second tower body（2）Centronics port
Connection, the second tower body（2）Bottom port be arranged to the second isolate port and the second tower body（2）Top port be arranged to
With the second condenser（6）Input port connection, the second condenser（6）Output port be respectively set to and the second tower body（2）
Top port backflow connection, the 3rd tower body（3）Centronics port connection and the 3rd tower body（3）Bottom port be arranged to
Four isolate ports, the 3rd tower body（3）Top port be arranged to and the first condenser（5）Input port connection and first
Condenser（5）Output port be arranged to and the 3rd tower body（3）Top port backflow connection, the first condenser（5）Output
Port is arranged to the 3rd isolate port, reboiler（4）Heat be arranged to and the 3rd tower body by switching port（3）Thermal source port
Connection.
5. the rectifier unit according to claim 4 for fusel oil, it is characterized in that：First tower body（1）, the second tower body
（2）With the 3rd tower body（3）Separated tower is respectively set to,
Or first tower body（1）It is arranged to positive-pressure type tower body and the second tower body（2）With the 3rd tower body（3）Be respectively set to normal pressure or
Suction type tower body,
Or reboiler（4）It is arranged to heat exchanger and reboiler（4）Input port and output port be arranged to thermal source exchange
Port.
6. the rectifier unit according to claim 4 for fusel oil, it is characterized in that：First condenser（5）It is cold with second
Condenser（6）It is respectively set to heat abstractor.
7. the rectifier unit according to claim 4 for fusel oil, it is characterized in that：First tower body（1）With the second tower body
（2）With the 3rd tower body（3）It is arranged to be distributed in the way of isolate discharge port group is formed and the first tower body（1）With the 3rd
Tower body（3）With reboiler（4）It is arranged to be distributed in the way of middle heat conversion is formed.
8. a kind of rectificating method for fusel oil, its step are：Fusel oil pressure be 0.2-0.4MPa, temperature 130-
150 °C of the first tower body（1）Obtain isoamyl alcohol, the first tower body（1）Releaser pressure be 0.1-0.15MPa, temperature be
108-115 °C of the second tower body（2）Obtain isobutanol, the second tower body（2）Releaser pressure be 0.04-0.1MPa, temperature
For 97-106 °C of the 3rd tower body（3）Obtain normal propyl alcohol and ethanol.
9. the rectificating method according to claim 8 for fusel oil, it is characterized in that：
Its step is：The fusel oil of alcohol separated is injected into the first tower body（1）In, keep the first tower body（1）In pressure
It is strong be 0.2-0.4MPa, temperature be 130-150 °C, in the first tower body（1）Bottom port obtain isolate isoamyl alcohol, the first tower
Body（1）Top port output pass through reboiler（4）Heat exchange after be input to the second tower body（2）In, keep the second tower body
（2）In pressure be 0.1-0.15MPa, temperature be 108-115 °C, in the second tower body（2）To obtain isolate different for bottom port
Butanol, the second tower body（2）Top port output pass through the second condenser（6）Radiating after be input to the 3rd tower body（3）In,
Keep the 3rd tower body（3）In pressure be 0.04-0.1MPa, temperature be 97-106 °C, in the 3rd tower body（3）Bottom port obtain
To isolate normal propyl alcohol, the 3rd tower body（3）Top port output pass through the first condenser（5）Radiating after in output port
Isolate ethanol is obtained,
Or its step is：
The fusel oil of alcohol separated is injected into the first tower body（1）In, keep the first tower body（1）In pressure be
0.36MPa, temperature are 138 °C, in the first tower body（1）Bottom port obtain isolate isoamyl alcohol, the first tower body（1）Top
Port output passes through reboiler（4）Heat exchange after be input to the second tower body（2）In, keep the second tower body（2）In pressure
It it is 115 °C for 0.14MPa, temperature, in the second tower body（2）Bottom port obtain isolate isobutanol, the second tower body（2）Top
End port output passes through the second condenser（6）Radiating after be input to the 3rd tower body（3）In, keep the 3rd tower body（3）In
Pressure is 0.05MPa, temperature is 100 °C, in the 3rd tower body（3）Bottom port obtain isolate normal propyl alcohol, the 3rd tower body（3）
Top port output pass through the first condenser（5）Radiating after in output port obtain isolate ethanol.
10. a kind of rectifier unit and method for fusel oil alcohol distillation residue fusel oil produce isoamyl alcohol, isobutanol,
The application of normal propyl alcohol and ethanol,
Or a kind of rectifier unit and method for fusel oil fusel oil successively pressure be 0.2-0.4MPa, temperature 130-
150 °C of distillation, which handles to obtain the distillation that isoamyl alcohol, pressure 0.1-0.15PMa, temperature are 108-115 °C, to be handled to obtain isobutyl
The distillation that alcohol, pressure 0.04-0.1MPa, temperature are 97-106 °C handles to obtain the application of normal propyl alcohol and ethanol.
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