CN217796057U - Continuous hydrogenation reaction device - Google Patents
Continuous hydrogenation reaction device Download PDFInfo
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- CN217796057U CN217796057U CN202221996322.2U CN202221996322U CN217796057U CN 217796057 U CN217796057 U CN 217796057U CN 202221996322 U CN202221996322 U CN 202221996322U CN 217796057 U CN217796057 U CN 217796057U
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Abstract
The utility model belongs to the technical field of the chemical industry equipment technique and specifically relates to a continuous hydrogenation device, including one-level hydrogenation cauldron, second grade hydrogenation cauldron and tertiary hydrogenation cauldron, and one-level hydrogenation cauldron, second grade hydrogenation cauldron and tertiary hydrogenation cauldron right side have set up one-level solid-liquid separator respectively, second grade solid-liquid separator and tertiary solid-liquid separator, one-level hydrogenation cauldron, one-level solid-liquid separator is connected respectively to the discharge gate of second grade hydrogenation cauldron and tertiary hydrogenation cauldron bottom, second grade solid-liquid separator and tertiary solid-liquid separator's feed inlet, and one-level solid-liquid separator, the discharge gate of second grade solid-liquid separator and tertiary solid-liquid separator bottom corresponds one-level hydrogenation cauldron through the circulating pipe connection respectively, the feed back mouth at second grade hydrogenation cauldron and tertiary hydrogenation cauldron top. The device uses one-level hydrogenation cauldron, second grade hydrogenation cauldron and tertiary hydrogenation cauldron to establish ties and sets up, realizes reacting step by step to the material, and the reaction is thorough, and the accessory substance is few, catalyst long service life, does not use flammable and explosive methyl alcohol solvent, possesses good security.
Description
Technical Field
The utility model relates to a chemical industry equipment technical field specifically is a continuous hydrogenation device.
Background
The hydrogenation is a strong exothermic reaction of gas-liquid phase with pressure, and the used main raw material hydrogen is flammable and explosive colorless gas. When the intermittent kettle type reaction is adopted, high-purity nitrogen is required for replacement until the oxygen content reaches the standard. The heat release is obvious in the early and middle stages of the reaction, the super-mild reaction and the over-high local temperature are easy to occur, side reactions are generated, the yield and the product quality are influenced, and unstable and dangerous intermediate products are generated. The catalyst has high price, low consumption and long service life, and is used for reducing the cost. In order to facilitate the reaction and prolong the service life of the catalyst, a solvent method is usually adopted for hydrogenation, and volatile, flammable, explosive and toxic methanol is generally used as a solvent. The hydrogenation product needs to be subjected to solvent recovery, water and a methanol solvent generated in the reaction process are mixed, and methanol-containing wastewater with low concentration and difficult biochemical treatment is generated, so that a continuous hydrogenation reaction device is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a continuous hydrogenation reaction unit, through using one-level hydrogenation cauldron, second grade hydrogenation cauldron and tertiary hydrogenation cauldron are as continuous hydrogenation reaction unit's structure, wherein, one-level hydrogenation cauldron, second grade hydrogenation cauldron and tertiary hydrogenation cauldron right side have set up one-level solid-liquid separator respectively, second grade solid-liquid separator and tertiary solid-liquid separator, material that can each grade hydrogenation cauldron react carries out solid-liquid separation, realize the recovery to the catalyst, and lead back corresponding hydrogenation cauldron through the circulating pump that corresponds with the catalyst that retrieves, realize the cyclic utilization to the catalyst, the hydrogenation pipe of setting can be one by one to one-level hydrogenation cauldron, second grade hydrogenation cauldron and tertiary hydrogenation cauldron carry out the hydrogenation, make the material at different levels carry out abundant reaction, the heating pipe has been set up on the filling tube of setting, this heating pipe is the tubular metal resonator surface cover establishes the insulating layer, and the outer winding electromagnetic heating coil of insulating layer, electromagnetic heating coil's setting can realize the heating to the filling tube, the circulation heating of material in the setting can realize the one-level hydrogenation cauldron, reaction efficiency accelerates, this equipment uses one-level hydrogenation cauldron and tertiary hydrogenation cauldron and the setting up the setting of electromagnetic heating coil, realize the heating reaction to the heating of filling tube, the material, the problem of the easy explosive reaction of catalyst, the background is thoroughly solved step by-step, the problem of the easy solvent, the easy-explosive, the life of the easy by-mass problem of the easy-up, the easy by-stage is good, the background problem, the easy by-mass of the high-stage methanol-mass is thoroughly.
In order to achieve the above object, the utility model provides a following technical scheme:
a continuous hydrogenation reaction apparatus comprising:
the raw material purification mechanism comprises a first-stage hydrogenation kettle, a second-stage hydrogenation kettle and a third-stage hydrogenation kettle, the first-stage hydrogenation kettle, a first-stage solid-liquid separator, a second-stage solid-liquid separator and a third-stage solid-liquid separator are arranged on the right side of the second-stage hydrogenation kettle and the right side of the third-stage hydrogenation kettle respectively, the first-stage hydrogenation kettle, discharge ports at the bottoms of the second-stage hydrogenation kettle and the third-stage hydrogenation kettle are connected with feed inlets of the first-stage solid-liquid separator, the second-stage solid-liquid separator and the third-stage solid-liquid separator respectively, and discharge ports at the bottoms of the first-stage solid-liquid separator, the second-stage solid-liquid separator and the third-stage solid-liquid separator are connected with feed back ports corresponding to the tops of the first-stage hydrogenation kettle, the second-stage hydrogenation kettle and the third-stage hydrogenation kettle through circulating pipes respectively;
the continuous hydrogenation mechanism comprises a hydrogenation pipe, three groups of tee joints are arranged on the hydrogenation pipe, an air supply pipe for connecting the first-stage hydrogenation kettle, the second-stage hydrogenation kettle and the third-stage hydrogenation kettle is arranged at the bottom of each tee joint, and a switch valve is arranged on the air supply pipe.
As a preferable scheme, a first-stage circulating pump, a second-stage circulating pump and a third-stage circulating pump are respectively arranged on circulating pipes at the bottoms of the first-stage solid-liquid separator, the second-stage solid-liquid separator and the third-stage solid-liquid separator.
As a preferred scheme, a liquid outlet at the top of the third-stage solid-liquid separator is connected with a feed inlet of the fourth-stage solid-liquid separator through a pipeline, and a gas phase of the fourth-stage solid-liquid separator is connected with the first-stage hydrogenation kettle through a pipeline.
As an optimal scheme, the device further comprises a feeding mechanism, wherein the feeding mechanism comprises a catalyst adding pipe and a feeding pipe which are arranged at the top of the one-stage hydrogenation kettle, a heating pipe is arranged on the feeding pipe, a feeding tee joint is arranged on the left side of the heating pipe on the feeding pipe, and a bottom pipe orifice of the feeding tee joint is connected with a discharge pipe orifice of the one-stage hydrogenation kettle through a return pipe.
As a preferred scheme, solenoid valves are arranged at the left end and the bottom pipe orifice of the feeding tee joint.
Preferably, a reflux pump is arranged on the reflux pipe.
As a preferred scheme, the filling tube is a metal tube, an insulating layer is sleeved on the surface of the filling tube, and an electromagnetic heating coil is wound outside the insulating layer.
As a preferred scheme, stirrers are arranged inside the first-stage hydrogenation kettle, the second-stage hydrogenation kettle and the third-stage hydrogenation kettle.
By the above technical scheme the utility model provides a can see out, the utility model provides a pair of continuous hydrogenation device, beneficial effect is: the device comprises a first-stage hydrogenation kettle, a second-stage hydrogenation kettle and a third-stage hydrogenation kettle, wherein the first-stage hydrogenation kettle, the second-stage hydrogenation kettle and the third-stage hydrogenation kettle are respectively provided with a first-stage solid-liquid separator, a second-stage solid-liquid separator and a third-stage solid-liquid separator on the right side, solid-liquid separation can be carried out on materials after reaction of the first-stage hydrogenation kettle, recovery of a catalyst is realized, the recovered catalyst is led back to the corresponding hydrogenation kettle through a corresponding circulating pump again, recycling of the catalyst is realized, the arranged hydrogenation pipe can be used for one-stage hydrogenation kettle one by one, hydrogenation of the second-stage hydrogenation kettle and the third-stage hydrogenation kettle is realized, full reaction can be carried out on all stages of materials, a heating pipe is arranged on the arranged feeding pipe, the heating pipe is a metal pipe, an insulating layer is sleeved on the surface of the feeding pipe, an electromagnetic heating coil is wound outside the insulating layer, heating of the feeding pipe can be realized through arrangement of the electromagnetic heating coil, circulation heating of the arranged materials in the first-stage hydrogenation kettle can be realized, reaction efficiency is accelerated, the arranged, the device is used for one-stage hydrogenation kettle and the third-stage hydrogenation kettle, a reflux pipe is serially arranged, the first-stage hydrogenation kettle and the second-stage hydrogenation kettle is used for realizing step reaction of a thorough reaction of materials, fewer byproducts, the catalyst has long service life, and is safe reflux pipe, and has good methanol.
Drawings
FIG. 1 is a schematic view of the overall structure of a continuous hydrogenation reactor of the present invention.
In the figure: 1. a first-stage hydrogenation kettle; 11. a first stage solid-liquid separator; 12. a first-stage circulating pump; 2. a catalyst addition pipe; 21. a feed tube; 22. heating a tube; 23. a return pipe; 24. a reflux pump; 3. a second-stage hydrogenation kettle; 31. a secondary solid-liquid separator; 32. a secondary circulating pump; 4. a third-stage hydrogenation kettle; 41. a third stage solid-liquid separator; 42. a three-stage circulating pump; 43. a four-stage solid-liquid separator; 5. a circulation pipe; 6. a hydrogenation pipe; 61. a gas supply pipe; 62. and (4) switching on and off the valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a continuous hydrogenation apparatus, including:
the raw material purification mechanism comprises a first-stage hydrogenation kettle 1, a second-stage hydrogenation kettle 3 and a third-stage hydrogenation kettle 4, wherein a first-stage solid-liquid separator 11, a second-stage solid-liquid separator 31 and a third-stage solid-liquid separator 41 are respectively arranged on the right sides of the first-stage hydrogenation kettle 1, the second-stage hydrogenation kettle 3 and the third-stage hydrogenation kettle 4, discharge ports at the bottoms of the first-stage hydrogenation kettle 1, the second-stage hydrogenation kettle 3 and the third-stage hydrogenation kettle 4 are respectively connected with feed inlets of the first-stage solid-liquid separator 11, the second-stage solid-liquid separator 31 and the third-stage solid-liquid separator 41, discharge ports at the bottoms of the first-stage solid-liquid separator 11, the second-stage solid-liquid separator 31 and the third-stage solid-liquid separator 41 are respectively connected with return ports corresponding to the tops of the first-stage hydrogenation kettle 1, the second-stage hydrogenation kettle 3 and the third-stage hydrogenation kettle 4 through circulating pipes 5, and a first-stage circulating pump 12, a second-stage circulating pump 32 and a third-stage circulating pump 42 are respectively arranged on the circulating pipes 5 at the bottoms of the first-stage solid-liquid separator 11, the second-stage solid-liquid separator 31 and the third-stage solid-liquid separator 41;
continuous hydrogenation mechanism, continuous hydrogenation mechanism include hydrogenation pipe 6, are provided with three groups of tee joints on the hydrogenation pipe 6, and the tee joint bottom has set up the air supply pipe 61 of connecting one-level hydrogenation cauldron 1, second grade hydrogenation cauldron 3 and tertiary hydrogenation cauldron 4 respectively to be provided with ooff valve 62 on the air supply pipe 61.
In the device, a liquid outlet at the top of the third-stage solid-liquid separator 41 is connected with a feed inlet of the fourth-stage solid-liquid separator 43 through a pipeline, and a gas phase of the fourth-stage solid-liquid separator 43 is connected with the first-stage hydrogenation kettle 1 through a pipeline.
Still include feeding mechanism, feeding mechanism adds pipe 2 and filling tube 21 including the catalyst that sets up at 1 top in one-level hydrogenation cauldron, be provided with heating pipe 22 on the filling tube 21, be provided with the feeding tee bend in heating pipe 22 left side on the filling tube 21, the three-way bottom mouth of pipe of feeding passes through the ejection of compact mouth of pipe that back flow 23 connects one-level hydrogenation cauldron 1, feeding tee bend left end and bottom mouth of pipe department have all set up the solenoid valve, be provided with backwash pump 24 on the back flow 23, filling tube 21 is the tubular metal resonator, the insulating layer is established to 21 cover of filling tube, and the winding electromagnetic heating coil outside the insulating layer.
In the device, the first-stage hydrogenation kettle 1, the second-stage hydrogenation kettle 3 and the third-stage hydrogenation kettle 4 are internally provided with stirrers.
The embodiments of the present invention will be described in further detail below with reference to the attached drawings:
referring to FIG. 1, the reactor comprises a first-stage hydrogenation kettle 1, a second-stage hydrogenation kettle 3, a third-stage hydrogenation kettle 4 and a hydrogenation pipe 6, wherein a first-stage solid-liquid separator 11, a second-stage solid-liquid separator 31 and a third-stage solid-liquid separator 41 are respectively arranged at the right side of the first-stage hydrogenation kettle 1, the second-stage hydrogenation kettle 3 and the third-stage hydrogenation kettle 4, discharge ports at the bottom of the first-stage hydrogenation kettle 1, the second-stage hydrogenation kettle 3 and the third-stage hydrogenation kettle 4 are respectively connected with feed inlets of the first-stage solid-liquid separator 11, the second-stage solid-liquid separator 31 and the third-stage solid-liquid separator 41, discharge ports at the bottom of the first-stage solid-liquid separator 11, the second-stage solid-liquid separator 31 and the third-stage solid-liquid separator 41 are respectively connected with return ports at the top of the first-stage hydrogenation kettle 1, the second-stage hydrogenation kettle 3 and the third-stage hydrogenation kettle 4 through a circulation pipe 5, one-level solid-liquid separator 11, one-level circulating pump 12 has been set up respectively on the circulating pipe 5 of second grade solid-liquid separator 31 and tertiary solid-liquid separator 41 bottom, second grade circulating pump 32 and tertiary circulating pump 42, be provided with three tee bend on the hydrogenation pipe 6, and the tee bend bottom has set up the air supply pipe 61 of connecting one-level hydrogenation cauldron 1 respectively, second grade hydrogenation cauldron 3 and tertiary hydrogenation cauldron 4, and be provided with ooff valve 62 on the air supply pipe 61, the liquid outlet at tertiary solid-liquid separator 41 top passes through the feed inlet of pipe connection level four solid-liquid separator 43, and level four solid-liquid separator 43 gaseous phase passes through pipe connection level one-level hydrogenation cauldron 1.
Wherein, the inside agitator that all is provided with of one-level hydrogenation cauldron 1, second grade hydrogenation cauldron 3 and tertiary hydrogenation cauldron 4, the setting of agitator is used for the stirring to the inside material of one-level hydrogenation cauldron 1, second grade hydrogenation cauldron 3 and tertiary hydrogenation cauldron 4, reaction efficiency with higher speed.
Please refer to fig. 1, the top of the first-stage hydrogenation reactor 1 is provided with a catalyst adding pipe 2 and a feeding pipe 21 respectively, the feeding pipe 21 is provided with a heating pipe 22, the feeding pipe 21 is provided with a feeding tee joint on the left side of the heating pipe 22, the bottom pipe orifice of the feeding tee joint is connected with the discharging pipe orifice of the first-stage hydrogenation reactor 1 through a return pipe 23, the left end and the bottom pipe orifice of the feeding tee joint are provided with electromagnetic valves, the return pipe 23 is provided with a reflux pump 24, the feeding pipe 21 is a metal pipe, an insulating layer is sleeved on the surface of the feeding pipe 21, and the insulating layer is wound with an electromagnetic heating coil.
The working principle of the embodiment is as follows: through using one-level hydrogenation cauldron, second grade hydrogenation cauldron and tertiary hydrogenation cauldron are as continuous hydrogenation reaction unit's structure, wherein, one-level hydrogenation cauldron, second grade hydrogenation cauldron and tertiary hydrogenation cauldron right side have set up one-level solid-liquid separator respectively, second grade solid-liquid separator and tertiary solid-liquid separator, can carry out solid-liquid separation by the material after each grade hydrogenation cauldron reaction, the realization is to the recovery of catalyst, and lead the catalyst of retrieving back to corresponding hydrogenation cauldron again through corresponding circulating pump, realize the cyclic utilization to the catalyst, the hydrogenation pipe that sets up can be one by one to one-level hydrogenation cauldron, second grade hydrogenation cauldron and tertiary hydrogenation cauldron hydrogenate, make each grade material can carry out abundant reaction, the heating pipe has been set up on the filling tube that sets up, this heating pipe is the tubular metal resonator, the insulating layer is established to filling tube surface cover, and twine electromagnetic heating coil outside the insulating layer, electromagnetic heating coil's setting can realize the heating to the filling tube, the cyclic heating of material in the one-level hydrogenation cauldron can be realized, reaction efficiency accelerates, the equipment, use one-level hydrogenation cauldron, second grade hydrogenation cauldron and tertiary hydrogenation cauldron establish ties, realize the reaction to the material step by step, the by-step reaction, the by-product is few, long service life, the safety reflux that the flammable solvent that does not easily explodes is good.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A continuous hydrogenation reaction device is characterized in that: the method comprises the following steps:
the raw material purification mechanism comprises a first-stage hydrogenation kettle (1), a second-stage hydrogenation kettle (3) and a third-stage hydrogenation kettle (4), wherein a first-stage solid-liquid separator (11), a second-stage solid-liquid separator (31) and a third-stage solid-liquid separator (41) are respectively arranged on the right sides of the first-stage hydrogenation kettle (1), the second-stage hydrogenation kettle (3) and the third-stage hydrogenation kettle (4), discharge ports at the bottoms of the first-stage hydrogenation kettle (1), the second-stage hydrogenation kettle (3) and the third-stage hydrogenation kettle (4) are respectively connected with feed ports of the first-stage solid-liquid separator (11), the second-stage solid-liquid separator (31) and the third-stage solid-liquid separator (41), and discharge ports at the bottoms of the first-stage solid-liquid separator (11), the second-liquid separator (31) and the third-stage solid-liquid separator (41) are respectively connected with return ports corresponding to the tops of the first-stage hydrogenation kettle (1), the second-stage hydrogenation kettle (3) and the third-stage hydrogenation kettle (4) through a circulating pipe (5);
continuous hydrogenation mechanism, continuous hydrogenation mechanism includes hydrogenation pipe (6), be provided with three tee bend of group on hydrogenation pipe (6), and the tee bend bottom has set up air supply pipe (61) of connecting one-level hydrogenation cauldron (1), second grade hydrogenation cauldron (3) and tertiary hydrogenation cauldron (4) respectively to be provided with ooff valve (62) on air supply pipe (61).
2. The continuous hydrogenation reaction device according to claim 1, wherein: and a primary circulating pump (12), a secondary circulating pump (32) and a tertiary circulating pump (42) are respectively arranged on the circulating pipes (5) at the bottoms of the primary solid-liquid separator (11), the secondary solid-liquid separator (31) and the tertiary solid-liquid separator (41).
3. The continuous hydrogenation reaction device according to claim 1, wherein: and a liquid outlet at the top of the third-stage solid-liquid separator (41) is connected with a feed inlet of the fourth-stage solid-liquid separator (43) through a pipeline, and a gas phase of the fourth-stage solid-liquid separator (43) is connected with the first-stage hydrogenation kettle (1) through a pipeline.
4. The continuous hydrogenation reaction device according to claim 1, wherein: still include reinforced mechanism, reinforced mechanism adds pipe (2) and filling tube (21) including the catalyst that sets up at one-level hydrogenation cauldron (1) top, be provided with heating pipe (22) on filling tube (21), be provided with the feeding tee bend on heating pipe (22) left side on filling tube (21), the ejection of compact mouth of pipe that one-level hydrogenation cauldron (1) was connected through back flow (23) to the three-way bottom mouth of pipe of feeding.
5. The continuous hydrogenation reaction device according to claim 4, wherein: solenoid valves are arranged at the left end of the feeding tee joint and the opening of the bottom pipe.
6. The continuous hydrogenation reaction device according to claim 4, wherein: a reflux pump (24) is arranged on the reflux pipe (23).
7. The continuous hydrogenation reaction device according to claim 4, wherein: the filling tube (21) is the tubular metal resonator, insulating layer is established to filling tube (21) surface cover, and the outer winding electromagnetic heating coil of insulating layer.
8. The continuous hydrogenation reaction device according to claim 1, wherein: still including reinforced mechanism, one-level hydrogenation cauldron (1), second grade hydrogenation cauldron (3) and tertiary hydrogenation cauldron (4) are inside all to be provided with the agitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221996322.2U CN217796057U (en) | 2022-07-29 | 2022-07-29 | Continuous hydrogenation reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221996322.2U CN217796057U (en) | 2022-07-29 | 2022-07-29 | Continuous hydrogenation reaction device |
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| Publication Number | Publication Date |
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| CN217796057U true CN217796057U (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221996322.2U Active CN217796057U (en) | 2022-07-29 | 2022-07-29 | Continuous hydrogenation reaction device |
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| CN (1) | CN217796057U (en) |
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2022
- 2022-07-29 CN CN202221996322.2U patent/CN217796057U/en active Active
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