CN205740825U - A kind of ethanol coupling synthesizer - Google Patents
A kind of ethanol coupling synthesizer Download PDFInfo
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- CN205740825U CN205740825U CN201620482714.5U CN201620482714U CN205740825U CN 205740825 U CN205740825 U CN 205740825U CN 201620482714 U CN201620482714 U CN 201620482714U CN 205740825 U CN205740825 U CN 205740825U
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
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Abstract
The utility model discloses a kind of ethanol coupling synthesizer, including for the acetic acid hydrogenation unit of synthesizing alcohol and acetate hydrogenation unit, for realizing rectification and purification unit that coarse ethanol purifies, for realizing the compression Cycle Unit of reaction end gas pressurization coupling；Described acetic acid hydrogenation unit includes preheating device I A, preheating device I B, vapourizing unit I, reactor I and gas-liquid separator I；Described acetate hydrogenation unit includes preheating device II A, preheating device II B, vapourizing unit II, reactor II and gas-liquid separator II；Described compression Cycle Unit includes primary cycle compressor and secondary cycle compressor.This utility model is arranged rationally, equipment conventional, and reaction raw materials hydrogen has carried out deep exploitation, and reaction end gas circulates, and considerably increases raw material availability and reaction yield；The heat that efficient recovery catalytic reaction produces, preheats reactor feed gas, reduces energy consumption of reaction so that energy consumption of reaction significantly reduces.
Description
Technical field
This utility model relates to a kind of ethanol coupling synthesizer, belongs to technical field of chemical synthesis.
Background technology
Ethanol be find the earliest, a kind of fatty alcohol that purposes is the widest, be also the main component of wine.Under room temperature, ethanol is nothing
Color, volatile, inflammable liquid.Ethanol of many uses, such as can be used to produce acetaldehyde, ether, ethyl acetate, ethamine,
The multiple industrial chemicals such as oxirane, in disinfectant, beverage, diluent, environmental protection coating material, pesticide, medicine, rubber, plastics, artificial
The multiple fields such as fiber, detergent is all widely used.
The traditional industry production method of ethanol is fermentation method and ethylene hydration method.But, due to a large amount of consumption to grain
With improving constantly of production cost of ethylene, therefore, both approaches cannot be produced in enormous quantities.In recent years, along with methanol carbonyl
The fast development of technology, acetate yield significantly improves, and the price of acetic acid is substantially reduced.Acetic acid is former as a kind of important chemical industry
Material, although prepare at industrial chemicals, be widely used in the industry such as pesticide, medicine intermediate, but acetic acid production capacity still has the biggest
Surplus, the exploitation having purposes under Dichlorodiphenyl Acetate is extremely urgent.Using acetic acid to have two kinds as the approach of raw material production ethanol, one is vinegar
Acid direct hydrogenation generates ethanol；Another kind is that acetic acid first generates acetate after esterification, then is hydrogenated to ethanol by acetate.But
Be, with the method for production of acetic acid ethanol, owing to catalytic hydrogenation conditions is more harsh, raw material availability is low, production process yield not
High so that production cost is higher, therefore inhibits its large-scale promotion.
Utility model content
For solving the problems referred to above that prior art exists, the purpose of this utility model is to provide a kind of ethanol coupling synthesis
Device, is circulated utilization to raw material, rationally reclaims reaction heat, and originally utilization rate is high, production cost is low.
For achieving the above object, the technical scheme that this utility model is used is:
A kind of ethanol coupling synthesizer, including for the acetic acid hydrogenation unit of synthesizing alcohol and acetate hydrogenation unit,
For realizing the rectification and purification unit that coarse ethanol purifies, the compression Cycle Unit coupled for realizing reaction end gas to pressurize；
Described acetic acid hydrogenation unit includes preheating device I A, preheating device I B, vapourizing unit I, reactor I and gas-liquid separation
Device I；The entrance of described preheating device I A connects acetic acid conveyance conduit, and its outlet is to vapourizing unit I；Described preheating device I B
Entrance connect hydrogen delivery tube road, its outlet is also communicated to vapourizing unit I；The discharging opening of vapourizing unit I passes through pipeline communication
Charging aperture to reactor I, the discharging opening of reactor I charging aperture by pipeline communication gas-liquid separator I；Gas-liquid separation
Liquid outlet opening bottom device I is communicated to rectification and purification unit, and the air vent on its top is communicated to acetate hydrogenation unit；
Described acetate hydrogenation unit includes that preheating device II A, preheating device II B, vapourizing unit II, reactor II are gentle
Liquid/gas separator II；The entrance of described preheating device II A connects acetate conveyance conduit, and its outlet is to vapourizing unit II；Institute
The entrance stating preheating device II B connects the air vent of gas-liquid separator I, and its outlet is also communicated to vapourizing unit II；Vapourizing unit
The discharging opening of II passes through pipeline communication gas-liquid by the charging aperture bottom pipeline communication to reactor II, the discharging opening of reactor II
Separator II；Liquid outlet opening bottom gas-liquid separator II is communicated to rectification and purification unit, and the air vent on its top is through pipeline
Connect compression Cycle Unit, be finally communicated to hydrogen delivery tube road；
Described compression Cycle Unit includes primary cycle compressor and secondary cycle compressor.
Further improvement of the utility model is: described acetic acid hydrogenation unit also includes for reclaiming reaction gas waste heat
Heat-exchange unit I；The tube-side inlet of heat-exchange unit I connects the outlet of vapourizing unit I, the bottom of its tube side outlet coupled reaction device I
Charging aperture；The shell side inlet of heat-exchange unit I is connected with the top discharge mouth of reactor I, and its shell-side outlet is communicated to gas-liquid separation
The top entry of device I.
Further improvement of the utility model is: described reactor I is fixed bed isothermal reactor.
Further improvement of the utility model is: described acetate hydrogenation unit also includes for reclaiming reaction gas waste heat
Heat-exchange unit II；The tube-side inlet of heat-exchange unit II connects the outlet of vapourizing unit II, its tube side outlet coupled reaction device II
Bottom feed mouth；The shell side inlet of heat-exchange unit II is connected with the top discharge mouth of reactor II, and its shell-side outlet is communicated to
The top entry of gas-liquid separator II.
Further improvement of the utility model is: described reactor II is isothermal reactor, is inside provided for reclaiming instead
Answering the cooling coil of heat, cooling coil connects drum.
Further improvement of the utility model is: described gas-liquid separator I air vent institute's connecting leg road has Liang Ge branch,
First lateral is directly communicated to preheating device II, and the second lateral is communicated to primary cycle compressor；Described gas-liquid is divided
Directly being communicated to primary cycle compressor from device II air vent institute's connecting leg road, the outlet of primary cycle compressor connects secondary cycle
The entrance of compressor, the outlet of secondary cycle compressor is to hydrogen delivery tube road.
The beneficial effects of the utility model are:
This utility model provides a kind of ethanol coupling synthesizer, arranges reasonable, equipment routine, former to superfluous reaction
Material hydrogen has carried out deep exploitation, and reaction end gas recycles in synthesizer, considerably increases the utilization rate of raw material with anti-
Answer yield, reduce discharge amount of exhaust gas；The heat that efficient recovery catalytic reaction produces, preheats reactor feed gas, reduces
Energy consumption of reaction so that energy consumption of reaction significantly reduces.This utility model can also simultaneously by-product high-quality steam, increase factory and add
Value.
This utility model is flexible and changeable, and acetic acid hydrogenation unit, acetate hydrogenation unit are connected with rectification and purification unit respectively
Connecing, acetic acid hydrogenation unit, acetate hydrogenation unit connect each other and independent of one another.When large-scale continuous production ethanol, by vinegar
Acid hydrogenation unit, the coupling of acetate hydrogenation unit use, it is possible to significantly improve raw material availability, reduce energy consumption and cost.
If only during alcohol production amount seldom or only single batch reaction, can only select any of which unit synthesizing alcohol, it is to avoid whole device
Run the energy resource consumption brought.
The tail gas of acetic acid hydrogenation unit enters acetate hydrogenation unit as raw material, and the tail gas of acetate hydrogenation unit is through pressure
The compression of contracting Cycle Unit, returning to acetic acid hydrogenation unit and uses as part material, whole reaction system does not has outside waste gas to arrange, and reacts
Raw material constantly circulates in device, deep reaction；Compression Cycle Unit makes the pressure of tail gas and heat obtain reasonably returning
Receiving and utilize, increase the unstripped gas temperature entering acetic acid hydrogenation unit, reduce the energy input of vapourizing unit, gas circulating load is little, pressure
Contracting Cycle Unit low in energy consumption, service life is long.Described reactor I is fixed bed isothermal reactor, it is possible to keep in reactor I
Reaction bed temperature, improve catalytic reaction efficiency.Described reactor II is provided with the coil pipe for reclaiming reaction heat, a side
In the beneficially holding reactor II of face, reaction bed temperature is constant, it is simple to technology controlling and process, it is ensured that course of reaction and product quality
Stablize, on the other hand can by-product a large amount of high pressure high-grade steam simultaneously, provide thermal source for other workshop section of factory.
Coarse ethanol purity obtained by this utility model is high, and rectification difficulty is low, and itself has higher temperature, enters
Without preheating again after rectification and purification workshop section, reduce rectification section energy consumption.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Wherein, 11, acetic acid conveyance conduit, 12, preheating device I A, 13, hydrogen delivery tube road, 14, preheating device I B, 15,
Vapourizing unit I, 16, reactor I, 17, gas-liquid separator I, 18, heat-exchange unit I, 21, acetate conveyance conduit, 22, pre-hot charging
Put II A, 23, preheating device II B, 24, vapourizing unit II, 25, reactor II, 26, gas-liquid separator II, 27, heat-exchange unit II,
28, drum, 3, rectification and purification unit, 4, primary cycle compressor, 5, secondary cycle compressor；
The traffic direction of direction of arrow instruction material in figure.
Detailed description of the invention
Below by specific embodiment, this utility model is described in further detail, but embodiment is not this utility model
The restriction of protection domain.
A kind of ethanol coupling synthesizer, as it is shown in figure 1, include that acetic acid hydrogenation unit, acetate hydrogenation unit, rectification carry
Pure unit and compression Cycle Unit.Wherein, acetic acid hydrogenation unit and acetate hydrogenation unit are used for synthesizing coarse ethanol, rectification and purification
Unit for carrying out refined purification to coarse ethanol, and compression Cycle Unit for carrying out pressurization coupling, re-using to reaction end gas.
Described acetic acid hydrogenation unit includes preheating device I A12, preheating device I B14, vapourizing unit I 15, heat-exchange unit I
18, reactor I 16 and gas-liquid separator I 17.Wherein, preheating device I A12, preheating device I B14 are for being arranged in parallel, for respectively
Two kinds of raw materials are preheated；Vapourizing unit I 15 is used for making two bursts of feed vaporization mix homogeneously；Heat-exchange unit I 18 is used for back
Receive reaction gas waste heat, the material mixed gas entering reactor II is heated up；Reactor I 16 adds for the catalysis realizing acetic acid
Hydrogen, generation ethanol；Gas-liquid separator I 17, for product is carried out gas-liquid separation, extracts coarse ethanol.Acetic acid hydrogenation unit
The concrete annexation of each equipment is:
The entrance of described preheating device I A12 connects acetic acid conveyance conduit 11, and its outlet enters to vapourizing unit I 15
Material mouth.The entrance of described preheating device I B14 connects hydrogen delivery tube road 13, the charging of its outlet to vapourizing unit I 15
Mouthful.The tube-side inlet of the outlet heat-exchange unit I 18 of vapourizing unit I 15, the tube side outlet coupled reaction device of heat-exchange unit I 18
The bottom feed mouth of I 16.The top discharge mouth of reactor I 16 is connected with the shell side inlet of heat-exchange unit I 18, heat-exchange unit I
The shell-side outlet of 18 is communicated to the top entry of gas-liquid separator I 17.The liquid outlet opening of gas-liquid separator is communicated to rectification and carries
Pure unit 3, its upper air vent institute's connecting leg road has Liang Ge branch, and the first lateral is directly communicated to preheating device II 23 will
Hydrogen rich off gas feeding acetate hydrogenation unit is as unstripped gas, and the second lateral is communicated to primary cycle compressor 4.
Described acetate hydrogenation unit includes preheating device II A22, preheating device II B23, vapourizing unit II 24, heat exchanger
Organize II 27, reactor II 25 and gas-liquid separator II 26.Wherein, preheating device II A22, preheating device II B23 for being arranged in parallel,
For respectively two kinds of raw materials being preheated；Vapourizing unit II 24 is used for making two bursts of feed vaporization mix homogeneously；Heat-exchange unit
II 27 for reclaiming reaction gas waste heat, heating up the material mixed gas entering reactor II；Reactor II 25 is used for realizing
The catalytic hydrogenation of acetate, generation ethanol；Gas-liquid separator II 26, for product is carried out gas-liquid separation, extracts thick second
Alcohol.The concrete annexation of each equipment of acetate hydrogenation unit is:
The entrance of described preheating device II A22 connects acetate conveyance conduit 21, and its outlet is to vapourizing unit II 24
Charging aperture.The entrance of described preheating device II B23 connects the air vent of gas-liquid separator I 17, the i.e. richness of acetic acid hydrogenation unit
Hydrogen tail gas is also communicated to vapourizing unit II 24 as the reaction raw materials of acetate hydrogenation unit, the outlet of preheating device II B23
Charging aperture.The discharging opening of described vapourizing unit II 24 tube side through heat-exchange unit II 27 and the bottom feed mouth of reactor II 25
It is connected.The top discharge mouth of reactor II 25 connects the shell side of heat-exchange unit II 27, and shell-side outlet is communicated to gas-liquid separator II
The entrance of 26；Liquid outlet opening bottom gas-liquid separator II 26 is communicated to rectification and purification unit 3, and the air vent on its top is through pipe
Road is directly communicated to primary cycle compressor 4；The entrance of the outlet secondary cycle compressor 5 of primary cycle compressor 4, two
The outlet of level recycle compressor 5 is to hydrogen delivery tube road 13.
Described reactor I 16 is fixed bed isothermal reactor.Described reactor II 25 is isothermal reactor, is inside provided for
Reclaiming the cooling coil of reaction heat, cooling coil connects drum 28, byproduct steam.
Use process of the present utility model is:
Acetic acid from acetic acid conveyance conduit, the hydrogen from hydrogen delivery tube road respectively enter preheating device I A, preheating
Device I B preheats, is then fed in vapourizing unit I vaporizing, mixing, reaction mixture gas enter heat-exchange unit I tube side,
Drawing temperature rising after the heat of the product of flowing in shell side, enter reactor I, reaction mixture gas is through reactor I
Beds, generation catalytic hydrogenation reaction produce ethanol, and the shell side of heat-exchange unit I is discharged, entered to product by discharging opening
Recovery waste heat, separates subsequently in gas-liquid separation device I, and isolated coarse ethanol is liquid, delivers to rectification and purification list
Unit purifies further, and in isolated tail gas, the raw material rich in hydrogen, as acetate hydrogenation unit uses, and is sent directly into
Preheating device II B；
Acetate from acetate conveyance conduit, the hydrogen rich off gas from acetic acid hydrogenation unit respectively enter preheating device
Preheating in II A, preheating device II B, be then fed in vapourizing unit II vaporizing, mixing, reaction mixture gas enters heat exchanger
In the tube side of group II, absorption shell side, after the heat of the product of flowing, temperature raises, and enters reactor II, reaction mixture gas warp
Crossing the beds of reactor II, occur catalytic hydrogenation reaction to produce ethanol, and byproduct steam, product is arranged by discharging opening
Go out, enter the shell side recovery waste heat of heat-exchange unit II, separate subsequently in gas-liquid separation device II, isolated thick second
Alcohol is liquid, delivers to rectification and purification unit and purifies further, and isolated tail gas enters primary cycle compressor, with acetic acid
The part hydrogen rich off gas that hydrogenation unit is discharged carries out secondary pressurized, secondary through overcompression, feeding secondary cycle compressor together
Tail gas after pressurization send back to hydrogen delivery tube road, as acetic acid hydrogenation unit unstripped gas recycle.
Above-described embodiment is used for illustrating this utility model rather than limiting this utility model, in this practicality
In novel scope of the claims, any modification, equivalent substitution and improvement that this utility model is made, both fall within this reality
With novel protection domain.
Claims (6)
1. an ethanol coupling synthesizer, it is characterised in that: include the acetic acid hydrogenation unit for synthesizing alcohol and acetate
Hydrogenation unit, for realize coarse ethanol purify rectification and purification unit (3), for realize reaction end gas pressurization coupling compression follow
Ring unit；
Described acetic acid hydrogenation unit includes preheating device I A (12), preheating device I B (14), vapourizing unit I (15), reactor I
And gas-liquid separator I (17) (16)；The entrance of described preheating device I A (12) connects acetic acid conveyance conduit (11), its outlet
To vapourizing unit I (15)；The entrance of described preheating device I B (14) connects hydrogen delivery tube road (13), and its outlet is also communicated to vapour
Gasifying device I (15)；The discharging opening of vapourizing unit I (15) is by the charging aperture of pipeline communication to reactor I (16) bottom, reactor
The discharging opening of I (16) charging aperture by pipeline communication gas-liquid separator I (17)；The liquid discharge of gas-liquid separator I (17) bottom
Material mouth is communicated to rectification and purification unit (3), and the air vent on its top is communicated to acetate hydrogenation unit；
Described acetate hydrogenation unit includes preheating device II A (22), preheating device II B (23), vapourizing unit II (24), reaction
Device II (25) and gas-liquid separator II (26)；The entrance of described preheating device II A (22) connects acetate conveyance conduit (21), its
Outlet is to vapourizing unit II (24)；The entrance of described preheating device II B (23) connects the aerofluxus of gas-liquid separator I (17)
Mouthful, its outlet is also communicated to vapourizing unit II (24)；The discharging opening of vapourizing unit II (24) passes through pipeline communication to reactor II
(25) charging aperture of bottom, the discharging opening of reactor II (25) passes through pipeline communication gas-liquid separator II (26)；Gas-liquid separator
The liquid outlet opening of II (26) bottom is communicated to rectification and purification unit (3), and the air vent on its top connects compression circulation through pipeline
Unit, finally it is communicated to hydrogen delivery tube road (13)；
Described compression Cycle Unit includes primary cycle compressor (4) and secondary cycle compressor (5).
2. a kind of ethanol coupling synthesizer as claimed in claim 1, it is characterised in that: described acetic acid hydrogenation unit also includes
For reclaiming the heat-exchange unit I (18) of reaction gas waste heat；The tube-side inlet of heat-exchange unit I (18) connects vapourizing unit I (15)
Outlet, the bottom feed mouth of its tube side outlet coupled reaction device I (16)；The shell side inlet of heat-exchange unit I (18) and reactor I
(16) top discharge mouth is connected, and its shell-side outlet is communicated to the top entry of gas-liquid separator I (17).
3. a kind of ethanol coupling synthesizer as claimed in claim 1, it is characterised in that: described reactor I (16) is fixing
Bed isothermal reactor.
4. a kind of ethanol coupling synthesizer as claimed in claim 1, it is characterised in that: described acetate hydrogenation unit is also wrapped
Include the heat-exchange unit II (27) for reclaiming reaction gas waste heat；The tube-side inlet of heat-exchange unit II (27) connects vapourizing unit II
(24) outlet, the bottom feed mouth of its tube side outlet coupled reaction device II (25)；The shell side inlet of heat-exchange unit II (27) with
The top discharge mouth of reactor II (25) is connected, and its shell-side outlet is communicated to the top entry of gas-liquid separator II (26).
5. a kind of ethanol coupling synthesizer as claimed in claim 1, it is characterised in that: described reactor II (25) is isothermal
Reactor, is inside provided for reclaiming the cooling coil of reaction heat, and cooling coil connects drum (28).
6. a kind of ethanol coupling synthesizer as claimed in claim 1, it is characterised in that: described gas-liquid separator I (17) is arranged
QI KOU institute's connecting leg road has Liang Ge branch, and the first lateral is directly communicated to preheating device II B (23), and the second lateral is even
Pass to primary cycle compressor (4)；Described gas-liquid separator II (26) air vent institute's connecting leg road is directly communicated to primary cycle pressure
Contracting machine (4), the outlet of primary cycle compressor (4) connects the entrance of secondary cycle compressor (5), secondary cycle pressure by pipeline
The outlet of contracting machine (5) is to hydrogen delivery tube road (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620482714.5U CN205740825U (en) | 2016-05-25 | 2016-05-25 | A kind of ethanol coupling synthesizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620482714.5U CN205740825U (en) | 2016-05-25 | 2016-05-25 | A kind of ethanol coupling synthesizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205740825U true CN205740825U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620482714.5U Active CN205740825U (en) | 2016-05-25 | 2016-05-25 | A kind of ethanol coupling synthesizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205740825U (en) |
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2016
- 2016-05-25 CN CN201620482714.5U patent/CN205740825U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 463800 south side of Xingye Road East, Shangcai, Zhumadian, Henan Patentee after: Henan Shunda Amperex Technology Limited Address before: 463000 439 Zhonghua Road, Yicheng District, Zhumadian, Henan Patentee before: Henan Shunda Chemical Industry Science Co., Ltd |
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| CP03 | Change of name, title or address |