CN215429071U

CN215429071U - Bionic turbulence device for olefin hydroformylation

Info

Publication number: CN215429071U
Application number: CN202120416675.XU
Authority: CN
Inventors: 孙清; 赵陆海波; 唐志永
Original assignee: Shanghai Ruicheng Carbon Energy Technology Co ltd
Current assignee: Shanghai Ruicheng Carbon Energy Technology Co ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2022-01-07
Anticipated expiration: 2031-02-25

Abstract

The utility model relates to the technical field of olefin hydroformylation, in particular to a bionic turbulence device for olefin hydroformylation, which comprises: the device comprises a reaction kettle, a guide cylinder and a turbulence cylinder, wherein the guide cylinder is arranged in the reaction kettle, and a turbulence space is formed between the inner wall of the reaction kettle and the outer wall of the guide cylinder; the turbulence barrel is sleeved outside the turbulence barrel, a plurality of layers of scale-shaped turbulence ports are arranged on the turbulence barrel, and the turbulence ports are arranged alternately. Each flow disturbing port is provided with a flow distributing assembly for strengthening mixing; the shunting assembly comprises a fixing piece and a scale plate connected to the bottom end of the fixing piece. The device cup joints the vortex section of thick bamboo on the draft tube outer wall, utilizes the vortex mouth of irregular scale form to strengthen the gas-liquid mixture in the reation kettle, and can increase gas-liquid area of contact, improves gas-liquid mass transfer efficiency, has increased the dwell time of bubble in reation kettle, improves reaction efficiency.

Description

Bionic turbulence device for olefin hydroformylation

Technical Field

The utility model relates to the technical field of olefin hydroformylation, in particular to a bionic turbulent flow device for olefin hydroformylation.

Background

At present, aldehydes are used as important chemical products and chemical raw materials, are mainly used for generating chemical intermediates such as acid, alcohol, ketoxime, olefine aldehyde and the like and high molecular monomers, and have wide application in the industries such as medicines, pesticide raw materials, engineering plastics, coatings, light textile auxiliaries and the like. In recent years, the demand of aldehyde products in domestic and foreign markets is still increasing.

Currently, in the industrial hydroformylation technology, under the condition of maintaining a certain temperature and pressure under a noble metal complex catalyst system, raw material olefin and synthesis gas H2/CO enter a catalyst solution in a reactor to react in a liquid phase to generate aldehyde or alcohol. The hydroformylation reactor requires good gas-liquid two-phase behavior, the traditional stirred tank reactor is complex in design and low in energy conversion efficiency, and meanwhile, moving parts cause high maintenance cost and high sealing requirement on the reactor; the bubble column reactor has poor mixing uniformity, bubbles blown by the gas distributor are not uniformly distributed in the reactor, and the bubble column reactor has large size, high flowing speed and poor mass transfer performance. In view of this, we propose a bionic turbolator for hydroformylation of olefins.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an olefin hydroformylation bionic turbulence device to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

a biomimetic spoiler device for hydroformylation of olefins, the biomimetic spoiler device comprising: the device comprises a reaction kettle, a guide cylinder and a turbulence cylinder, wherein the guide cylinder is arranged in the reaction kettle, and a turbulence space is formed between the inner wall of the reaction kettle and the outer wall of the guide cylinder;

the turbulence barrel is sleeved outside the turbulence barrel, a plurality of layers of scale-shaped turbulence ports are arranged on the turbulence barrel, and the turbulence ports are arranged alternately.

Preferably, a feed inlet is formed in the top of the guide shell and used for inputting reaction raw materials into the reaction kettle through the feed inlet to perform reaction;

and a discharge hole is formed in the bottom of the reaction kettle and used for discharging reaction products and unreacted raw materials from the reaction kettle.

Preferably, a baffle is further arranged in the reaction kettle, and the baffle is arranged under the opening at the bottom end of the guide cylinder.

Preferably, each flow disturbing port is provided with a flow dividing assembly;

the shunt subassembly includes the mounting, and connects the apron of mounting bottom, the mounting articulates the last edge of vortex mouth, the apron lock is in vortex mouth position.

Preferably, the fixing piece is hinged to the upper edge of the flow disturbing port through a hinge;

the apron is provided with a plurality of perforations.

Preferably, the perforated buckle is arranged in a small inside and a large outside.

Compared with the prior art, the utility model has the beneficial effects that: this bionical vortex device of olefin hydroformylation, cup joint the vortex section of thick bamboo on the draft tube outer wall, be provided with the alternately vortex mouth of arranging of crisscross on the vortex section of thick bamboo, the gas-liquid mixture in the reation kettle has been strengthened to the vortex mouth that utilizes irregular scale form, and simultaneously, the uneven perforation of size of arranging on the apron of vortex mouth position, utilize the perforation on the apron, break into the micro bubble with the big bubble in the gas-liquid two-phase, increase gas-liquid area of contact, improve gas-liquid mass transfer efficiency, the dwell time of bubble in reation kettle has been increased, and the reaction efficiency is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an internal cross-sectional view of the overall structure of the present invention;

FIG. 3 is a schematic structural view of a draft tube according to the present invention;

FIG. 4 is a schematic structural view of a baffle cylinder according to the present invention;

FIG. 5 is a side view of a partial structure of a flow-disturbing port according to the present invention;

fig. 6 is a schematic structural view of the shunt assembly of the present invention.

In the figure: 1. a reaction kettle; 11. a discharge port; 12. a baffle plate; 2. a draft tube; 21. a feed inlet; 3. a turbulence cylinder; 31. a flow-disturbing port; 4. a flow diversion assembly; 41. a fixing member; 411. a hinge; 42. a scale plate; 421. and (6) perforating.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate. In the description of the present invention, "plurality" means two or more unless specifically limited otherwise.

A bionic turbulent flow device for olefin hydroformylation, as shown in fig. 1-4, the bionic turbulent flow device comprising: the device comprises a reaction kettle 1, a guide cylinder 2 and a turbulence cylinder 3, wherein a discharge hole 11 is formed in the bottom of the reaction kettle 1 and used for discharging reaction products and unreacted raw materials from the reaction kettle 1; the top of the guide shell 2 is provided with a feed inlet 21 for inputting reaction raw materials into the reaction kettle 1 through the feed inlet 21 for reaction; the guide cylinder 2 is arranged in the reaction kettle 1, a turbulent flow space is formed between the inner wall of the reaction kettle 1 and the outer wall of the guide cylinder 2, a baffle 12 is further arranged in the reaction kettle 1, and the baffle 12 is arranged right below an opening at the bottom end of the guide cylinder 2; the turbulence cylinder 3 is sleeved outside the draft tube 2, a plurality of layers of scale-shaped turbulence ports 31 are arranged on the turbulence cylinder 3, and the layers of the turbulence ports 31 are arranged alternately.

Thus, hydroformylation of the desired olefins and synthesis gas (H)₂The material of/CO) sprays downwards through feed inlet 21, most fluid baffles to draft tube 2 and reation kettle 1 in the vortex space between under the effect of baffle 12, because be provided with the vortex mouth 31 of a plurality of scales on the vortex tube 3, make 3 surperficial unsmooths of vortex tube, play if using of vortex, and bubble and vortex mouth 31 bump and produce tiny bubble, promote going on of reaction, increase the area and the dwell time of material contact, the reaction efficiency of hydroformylation reaction has been improved, the gas-liquid mixture after the rise flows into draft tube 2's inner space from draft tube 2 upper end once more, flow out reation kettle 1 through bottom discharge gate 11 behind the circulation many times and get into the circulation pipeline of next stage.

As shown in fig. 5 and 6, a flow dividing assembly 4 is arranged on each flow disturbing port 31; the flow dividing assembly 4 comprises a fixing member 41 and a scale plate 42 connected to the bottom end of the fixing member 41, the fixing member 41 is hinged to the upper edge of the spoiler 31, and the scale plate 42 is buckled at the spoiler 31. The apron 42 improves the turbulence degree in the reaction kettle 1, strengthens gas-liquid mixing and improves the uniformity of material mixing in the kettle.

It should be noted that the fixing member 41 is hinged to the upper edge of the turbulent flow port 31 through a hinge 411, so that the fixing member 41 can be conveniently installed and fixed; a plurality of perforations 421 are arranged on the apron 42, the buckles of the perforations 421 are arranged in a small manner and in a large manner, the large bubbles in the liquid phase are broken into micro bubbles by the perforations 421 in a small manner and in a large manner, the micro bubbles are dispersed in the reaction kettle 1, the contact area of the gas-liquid phase interface is increased, the residence time is increased, and the reaction efficiency of the hydroformylation reaction is improved

When the bionic turbulence device for olefin hydroformylation is used, most of fluid is baffled into a turbulence space between the guide cylinder 2 and the reaction kettle 1 under the action of the baffle 12, because the turbulence cylinder 3 is provided with the plurality of flaky turbulence ports 31, the surface of the turbulence cylinder 3 is uneven, if turbulence is used, and the bubbles collide with the turbulence ports 31 to generate micro bubbles, so that the reaction is promoted, the contact area and the residence time of materials are increased, the reaction efficiency of the hydroformylation reaction is improved, the raised gas-liquid mixture flows into the inner space of the guide cylinder 2 from the upper end of the guide cylinder 2 again, and flows out of the reaction kettle 1 through the bottom discharge port 11 after being circulated for multiple times and enters a next-stage circulation pipeline;

in addition, all be provided with on every spoiler mouth 31 on the spoiler cylinder 3 and be used for cutting the reposition of redundant personnel subassembly 4 of bubble, utilize apron 42 to cut the bubble, and reduce the air current velocity of flow, increase its dwell time in the spoiler space, further make alkene hydroformylation react fully.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A bionic flow perturbation device for olefin hydroformylation is characterized in that the bionic flow perturbation device comprises: the device comprises a reaction kettle (1), a guide cylinder (2) and a turbulence cylinder (3), wherein the guide cylinder (2) is arranged in the reaction kettle (1), and a turbulence space is formed between the inner wall of the reaction kettle (1) and the outer wall of the guide cylinder (2);

the turbulence cylinder (3) is sleeved outside the flow guide cylinder (2), a plurality of layers of scale-shaped turbulence ports (31) are arranged on the turbulence cylinder (3), and the turbulence ports (31) are arranged at intervals.

2. The bionic flow perturbation device for olefin hydroformylation as claimed in claim 1, wherein: the top of the guide shell (2) is provided with a feed inlet (21) for inputting reaction raw materials into the reaction kettle (1) through the feed inlet (21) for reaction;

the bottom of the reaction kettle (1) is provided with a discharge hole (11) for discharging reaction products and unreacted raw materials from the reaction kettle (1).

3. The bionic flow perturbation device for olefin hydroformylation as claimed in claim 1, wherein: still be provided with baffle (12) in reation kettle (1), just baffle (12) set up under draft tube (2) bottom opening.

4. The bionic flow perturbation device for olefin hydroformylation as claimed in claim 1, wherein: each flow disturbing port (31) is provided with a flow dividing assembly (4);

reposition of redundant personnel subassembly (4) are including mounting (41), and connect in apron (42) of mounting (41) bottom, mounting (41) articulate the last edge of turbulent flow mouth (31), apron (42) lock is in turbulent flow mouth (31) position.

5. The bionic flow perturbation device for olefin hydroformylation as claimed in claim 4, wherein: the fixing piece (41) is hinged to the upper edge of the flow disturbing port (31) through a hinge (411);

a plurality of perforations (421) are arranged on the apron (42).

6. The bionic flow perturbation device for olefin hydroformylation as claimed in claim 5, wherein: the buckle of the perforation (421) is arranged in a small inside and a big outside.