CN208545336U - A kind of waste-heat recovery device in ethene hydroformylation reaction process - Google Patents
A kind of waste-heat recovery device in ethene hydroformylation reaction process Download PDFInfo
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- CN208545336U CN208545336U CN201820853604.4U CN201820853604U CN208545336U CN 208545336 U CN208545336 U CN 208545336U CN 201820853604 U CN201820853604 U CN 201820853604U CN 208545336 U CN208545336 U CN 208545336U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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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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Abstract
The utility model discloses the waste-heat recovery devices in a kind of ethene hydroformylation reaction process; including reactor; it further include drum and refrigeration unit; the shifting thermal medium outlet of the reactor is connect with the shifting thermal medium gas phase import of the drum; the shifting thermal medium gaseous phase outlet of the drum is connect with the shifting thermal medium inlet of the refrigeration unit; the shifting thermal medium liquid-phase outlet of the drum is connected with the shifting thermal medium inlet of the reactor, and the shifting thermal medium outlet of the refrigeration unit is connected with the shifting thermal medium fluid inlet of the drum.The utility model has the advantages that structure simple, stable operation, operating cost is low, high-efficiency and economic.
Description
Technical field
The utility model relates to waste-heat recovery devices, and in particular to the waste heat in a kind of ethene hydroformylation reaction process returns
Receiving apparatus.
Background technique
Ethene hydroformylation reaction is the main method for preparing a variety of important organic solvents and industrial chemicals, such as positive propionic aldehyde
With normal propyl alcohol using ethene hydroformylation method as primary synthetic methods, ethene hydroformylation method also known as oxo synthesis are with second
Alkene, carbon monoxide, hydrogen are raw material, and the method for generation propionic aldehyde, this method are mainly characterized by product under the effect of the catalyst
Purity is high, isomer-free generate, and separation is easy, are to produce the main method and developing direction of propionic aldehyde, and the production master of normal propyl alcohol
To include two parts: positive propionic aldehyde reacts the subtractive process for making thick propyl alcohol and thick propyl alcohol with hydrogen, and raw material is be positive propionic aldehyde and hydrogen
Gas.Carbonylation synthesis is strong exothermal reaction, and reaction heat is about 125kJ/mol, and the removal of heat is most important in reaction process.Second
Alkene hydroformylation reaction is divided into homogeneous catalyst technique and heterogeneous catalyst technique according to the difference of catalyst, such as Chinese patent public affairs
The number of opening CN105523891A, CN 105585437A, CN 104667976A, CN 102030622A, CN102336638A, the U.S.
Patent US4072709 etc..The heat that wherein homogeneous catalyst technological reaction releases takes reactor, reaction process out of by solvent
In the amount of heat that releases can not be utilized.Heterogeneous catalysis technological reaction temperature is low, and simultaneous reactions thermal discharge is especially big, causes
The ordinary shifting thermal medium of such as water, can not undergo phase transition in heat transfer process, and the shifting thermal efficiency is low, and reactor is easy temperature runaway；In addition,
The heat moved in thermal medium is difficult to effectively recycle, and recycling after typically exchanging heat with cooling water, this method causes
Heat waste, increases the operating cost of device.
Such as China Patent Publication No. CN107266289A, a kind of denomination of invention: dress using carbon dioxide production normal propyl alcohol
It sets and method.A kind of device and method using carbon dioxide production normal propyl alcohol of the disclosure of the invention, using carbon dioxide as raw material,
Including raw material mixed cell, buffer cell, reaction member, waste heat recovery unit, quenching unit, compression unit, separative unit,
PSA unit, positive propionic aldehyde production unit and normal propyl alcohol production unit.The invention using carbon dioxide preparation ethylene, carbon monoxide,
Hydrogen and the raw material supply for producing its product as the positive propionic aldehyde in downstream, normal propyl alcohol；Make fuel using exhaust gas caused by technique
Issue additional steam.Shortcoming is that the heat moved in thermal medium can not be recycled, and causes heat waste, increases the fortune of device
Row cost.
Summary of the invention
The purpose of this utility model be in view of the deficiencies of the prior art, provide a kind of simple structure, stable operation, operation at
Waste-heat recovery device in this low, high-efficiency and economic ethene hydroformylation reaction process.
In a kind of ethene hydroformylation reaction process that in order to achieve the above purposes, the technical solution adopted by the utility model is:
Waste-heat recovery device, including reactor further includes drum and refrigeration unit, the shifting thermal medium outlet of the reactor with it is described
The shifting thermal medium gas phase import of drum connects, the shifting thermal medium of shifting the thermal medium gaseous phase outlet and the refrigeration unit of the drum
Import connection, the shifting thermal medium liquid-phase outlet of the drum are connected with the shifting thermal medium inlet of the reactor, the refrigeration machine
The shifting thermal medium outlet of group is connected with the shifting thermal medium fluid inlet of the drum.
It is further:
As preferred embodiments of the present invention, the reactor is provided at least one and moves thermal medium outlet.
As preferred embodiments of the present invention, the reactor is preferably radial reactor.
As preferred embodiments of the present invention, the reactor preferably axially reactor.
As preferred embodiments of the present invention, the refrigeration unit is preferably lithium bromide absorption refrigerating set.
As preferred embodiments of the present invention, the drum is provided at least one and moves the import of thermal medium gas phase.
The ethene hydroformylation reaction occurred in reactor is strong exothermal reaction, and reaction temperature is at 70-180 DEG C.It reacted
The amount of heat generated in journey is undergone phase transition by a part of alkanes shifting thermal medium heat being carried away to drum.
Drum receives the shifting thermal medium of reactor, separates to the shifting thermal medium of gas phase and liquid phase, the shifting heat of liquid phase
Medium comes back to reactor, is saturated gaseous shifting thermal medium and is transported to refrigeration unit.
Refrigeration unit receives the gaseous state that drum comes and moves thermal medium, absorbs the heat that gaseous state moves thermal medium, and gaseous state is moved heat
Medium is cooled to after liquid moves thermal medium, is returned to drum and is entered back into reactor and is recycled.Refrigeration unit of the invention is excellent
It is selected as lithium bromide absorption refrigerating set, lithium bromide absorption refrigerating set is using lithium-bromide solution as absorber material, with water
For refrigerant solution, using water, evaporation endothermic achievees the purpose that refrigeration in high vacuum.Water as refrigerant is generally 15-35 DEG C and enters bromine
Change lithium unit, be cooled to 7-15 DEG C be delivered to other cooling equipment used as cold source.
Alkanes can be used in actual operation and move thermal medium for the device of the utility model, because ethene hydroformylation reacts
Temperature of reactor is lower, can release amount of heat during simultaneous reactions, hot as moving using water when reaction temperature is lower
It will not be undergone phase transition for 100 DEG C or less when medium, a large amount of reaction heat can not be taken out of to reactor, moved thermal medium and select alkanes
(such as propane, iso-butane, normal butane, hexane, pentane, isopentane etc.) can be undergone phase transition in the lower situation of reaction temperature
Medium effectively can take a large amount of reaction heat out of reactor.
Compared with prior art, the utility model has the advantages that
1, structure is simple, stable operation, and reactor is provided at least one and moves thermal medium outlet, and drum is provided at least one
A shifting thermal medium gas phase import, the heat in reaction process can effectively be removed, carry out reacting balance.
2, high-efficiency and economic, by refrigeration unit can by move thermal medium in heat be converted into cold water, for it is subsequent other
The equipment for needing cooling capacity improves the economy of device entirety.
Detailed description of the invention
Fig. 1 is the flow diagram of the waste-heat recovery device in the ethene hydroformylation reaction process of the utility model.
In figure, reactor 1, drum 2, refrigeration unit 3.
Specific embodiment
As shown in Figure 1, the waste-heat recovery device in the ethene hydroformylation reaction process of the utility model, including reactor
1, it further include drum 2 and refrigeration unit 3, the shifting thermal medium outlet of reactor 1 is connect with the shifting thermal medium gas phase import of drum 2,
The shifting thermal medium gaseous phase outlet of drum 2 is connect with the shifting thermal medium inlet of refrigeration unit 3, the shifting thermal medium liquid-phase outlet of drum 2
It is connected with the shifting thermal medium inlet of reactor 1, the shifting thermal medium outlet of refrigeration unit 3 and the shifting thermal medium fluid inlet of drum 2
It is connected.
Production procedure is (by taking the synthesis of propionic aldehyde as an example): feed ethylene and synthesis gas enter reactor 1 and carry out reaction generation
Propionic aldehyde and some other components, the liquid phase that the amount of heat released in reaction process is entered reactor 1 are moved thermal medium and are absorbed,
Liquid phase is moved during thermal medium absorption heat, and the shifting thermal medium of a part of liquid can mutually become gaseous state, and ratio is in 2-20%；Gas-liquid
The shifting thermal medium of phase leaves reactor 1 and enters drum 2, and the thermal medium that moves into the liquid phase of drum 2 carries out gas phase and liquid phase
Separation, the shifting thermal medium of liquid phase reenter reactor 1 and are recycled, and are saturated gaseous shifting thermal medium and are transported to refrigeration unit 3；
Gaseous state into refrigeration unit 3 moves thermal medium and is exchanged heat by refrigeration unit 3, becomes after liquid moves thermal medium from gaseous state, weight
New return drum 2 enters back into reactor 1 and is recycled.
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail, but the utility model
It is not limited in the embodiment described.
Embodiment 1
A kind of waste-heat recovery device in ethene hydroformylation reaction process, including reactor 1 (axial flow reactor, setting
Have a shifting thermal medium outlet), it further include drum 2 (being provided with a shifting thermal medium gas phase import) and 3 (lithium bromide of refrigeration unit
Absorption refrigeration unit), the shifting thermal medium outlet of reactor 1 is connect with the shifting thermal medium gas phase import of drum 2, the shifting of drum 2
Thermal medium gaseous phase outlet is connect with the shifting thermal medium inlet of refrigeration unit 3, the shifting thermal medium liquid-phase outlet and reactor 1 of drum 2
Shifting thermal medium inlet be connected, the shifting thermal medium outlet of refrigeration unit 3 is connected with the shifting thermal medium fluid inlet of drum 2.
Embodiment 2
A kind of waste-heat recovery device in ethene hydroformylation reaction process, including reactor 1 (radial reactor, setting
There are two move thermal medium outlet), it further include drum 2 (there are two move the import of thermal medium gas phase for setting) and 3 (lithium bromide of refrigeration unit
Absorption refrigeration unit), the shifting thermal medium outlet of reactor 1 is connect with the shifting thermal medium gas phase import of drum 2, the shifting of drum 2
Thermal medium gaseous phase outlet is connect with the shifting thermal medium inlet of refrigeration unit 3, the shifting thermal medium liquid-phase outlet and reactor 1 of drum 2
Shifting thermal medium inlet be connected, the shifting thermal medium outlet of refrigeration unit 3 is connected with the shifting thermal medium fluid inlet of drum 2.
Embodiment 3
A kind of waste-heat recovery device in ethene hydroformylation reaction process, including reactor 1 (radial reactor, setting
There are three move thermal medium outlet), it further include drum 2 (there are three move the import of thermal medium gas phase for setting) and 3 (lithium bromide of refrigeration unit
Absorption refrigeration unit), the shifting thermal medium outlet of reactor 1 is connect with the shifting thermal medium gas phase import of drum 2, the shifting of drum 2
Thermal medium gaseous phase outlet is connect with the shifting thermal medium inlet of refrigeration unit 3, the shifting thermal medium liquid-phase outlet and reactor 1 of drum 2
Shifting thermal medium inlet be connected, the shifting thermal medium outlet of refrigeration unit 3 is connected with the shifting thermal medium fluid inlet of drum 2.
Embodiment 4
A kind of waste-heat recovery device in ethene hydroformylation reaction process, including reactor 1 (radial reactor, setting
There are four move thermal medium outlet), it further include drum 2 (there are four move the import of thermal medium gas phase for setting) and 3 (lithium bromide of refrigeration unit
Absorption refrigeration unit), the shifting thermal medium outlet of reactor 1 is connect with the shifting thermal medium gas phase import of drum 2, the shifting of drum 2
Thermal medium gaseous phase outlet is connect with the shifting thermal medium inlet of refrigeration unit 3, the shifting thermal medium liquid-phase outlet and reactor 1 of drum 2
Shifting thermal medium inlet be connected, the shifting thermal medium outlet of refrigeration unit 3 is connected with the shifting thermal medium fluid inlet of drum 2.
Claims (6)
1. the waste-heat recovery device in a kind of ethene hydroformylation reaction process, including reactor, which is characterized in that further include vapour
Packet and refrigeration unit, the shifting thermal medium outlet of the reactor are connect with the shifting thermal medium gas phase import of the drum, the vapour
The shifting thermal medium gaseous phase outlet of packet is connect with the shifting thermal medium inlet of the refrigeration unit, and the shifting thermal medium liquid phase of the drum goes out
Mouth is connected with the shifting thermal medium inlet of the reactor, and the shifting thermal medium outlet of the refrigeration unit and the shifting heat of the drum are situated between
Matter fluid inlet is connected.
2. the waste-heat recovery device in ethene hydroformylation reaction process according to claim 1, which is characterized in that described
Reactor is provided at least one and moves thermal medium outlet.
3. the waste-heat recovery device in ethene hydroformylation reaction process according to claim 1, which is characterized in that described
Reactor is radial reactor.
4. the waste-heat recovery device in ethene hydroformylation reaction process according to claim 1, which is characterized in that described
Reactor is axial flow reactor.
5. the waste-heat recovery device in ethene hydroformylation reaction process according to claim 1, which is characterized in that described
Refrigeration unit is lithium bromide absorption refrigerating set.
6. the waste-heat recovery device in ethene hydroformylation reaction process according to claim 1, which is characterized in that described
Drum is provided at least one and moves the import of thermal medium gas phase.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820853604.4U CN208545336U (en) | 2018-06-04 | 2018-06-04 | A kind of waste-heat recovery device in ethene hydroformylation reaction process |
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| CN201820853604.4U CN208545336U (en) | 2018-06-04 | 2018-06-04 | A kind of waste-heat recovery device in ethene hydroformylation reaction process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108586213A (en) * | 2018-06-04 | 2018-09-28 | 宁波巨化化工科技有限公司 | A kind of waste-heat recovery device in ethene hydroformylation reaction process and its method |
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2018
- 2018-06-04 CN CN201820853604.4U patent/CN208545336U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108586213A (en) * | 2018-06-04 | 2018-09-28 | 宁波巨化化工科技有限公司 | A kind of waste-heat recovery device in ethene hydroformylation reaction process and its method |
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