CN213854414U - Hydrogenation device - Google Patents
Hydrogenation device Download PDFInfo
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- CN213854414U CN213854414U CN202021799898.0U CN202021799898U CN213854414U CN 213854414 U CN213854414 U CN 213854414U CN 202021799898 U CN202021799898 U CN 202021799898U CN 213854414 U CN213854414 U CN 213854414U
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Abstract
The utility model provides a hydrogenation device, including withstand voltage reation kettle and with air feed unit and the feeding unit that withstand voltage reation kettle links to each other, withstand voltage reation kettle is including heating stirring unit and temperature sensor, the air feed unit with withstand voltage reation kettle passes through the intake pipe and links to each other, be used for to provide hydrogen in the withstand voltage reation kettle, be provided with gas flowmeter in the intake pipe, the feeding unit pass through the inlet pipe with withstand voltage reation kettle links to each other, be used for to provide the raw materials of treating the hydrogenation in the withstand voltage reation kettle, be provided with the charge-in pump on the inlet pipe. The utility model discloses can reduce the area of equipment, improve unit volume's hydrogenation effect and reduce the device of unit volume's raw materials quantity.
Description
Technical Field
The utility model belongs to the technical field of the chemical industry, concretely relates to hydrogenation device can reduce the device volume, improves hydrogenation efficiency.
Background
The hydrogenation reaction is a reaction process widely applied in petrochemical industry and chemical pharmacy, the hydrogenation reaction is carried out in a reaction kettle, and hydrogen and materials are contacted and reacted in a solid or liquid catalyst to generate a required product.
Among the prior art, hydrogen lets in reation kettle from reation kettle's bottom, forms the bubble through the inside axial-flow type stirring of reation kettle, and the small part bubble reacts at the catalyst surface with solution, and remaining bubble rises to the surface of solution because of buoyancy, and the area of contact of bubble and solution is little, and the utilization ratio of hydrogen is low, and reaction rate is slow, and current hydrogenation device is with high costs, the size is huge, and unit volume output is low, and the operation is complicated, and it is slower to obtain the experimental result.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned problem among the prior art, the utility model provides a simple and easy hydrogenation device can reduce the area of equipment, improves the hydrogenation effect of unit volume and reduces the device of unit volume's raw materials quantity.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a hydrogenation device, including withstand voltage reation kettle and with air feed unit and the feeding unit that withstand voltage reation kettle links to each other, withstand voltage reation kettle is including heating stirring unit and temperature sensor, the air feed unit with withstand voltage reation kettle passes through the intake pipe and links to each other, be used for to provide hydrogen in the withstand voltage reation kettle, be provided with gas flowmeter in the intake pipe, the feeding unit pass through the inlet pipe with withstand voltage reation kettle links to each other, be used for to provide the raw materials of treating the hydrogenation in the withstand voltage reation kettle, be provided with the charge-in pump on the inlet pipe.
In some embodiments, the gas supply unit further comprises a nitrogen gas source for replacing the gas in the pressure-resistant reaction vessel.
In some embodiments, the heating and stirring unit includes a magnetic stirring electric furnace disposed below the pressure-resistant reaction vessel, and a magnetic stirrer placed in the pressure-resistant reaction vessel.
In some embodiments, the heating and stirring unit comprises a heating electric furnace and a stirrer, the heating electric furnace is arranged below the pressure-resistant reaction kettle, and the stirrer is arranged at the top of the pressure-resistant reaction kettle.
In some embodiments, the heating and stirring unit comprises a hot oil bath, and the pressure resistant reaction vessel is placed in the hot oil bath.
In some embodiments, the pressure-resistant reaction vessel further comprises an auxiliary heating unit disposed on an outer wall of the pressure-resistant reaction vessel.
In some embodiments, the auxiliary heating unit includes an electric tracing band.
In some embodiments, the auxiliary heating unit is a heat conduction oil heating unit, the outer wall of the pressure-resistant reaction kettle comprises an interlayer, and heat conduction oil is filled in the interlayer.
In some embodiments, the feed pump is a peristaltic pump.
In some embodiments, the hydrogenation apparatus further comprises a tail gas treatment unit for treating a tail gas produced in the hydrogenation reaction.
Compared with the prior art, the utility model discloses a hydrogenation device has following beneficial effect:
the hydrogenation device of the utility model has simple operation, portability, small occupied area and 1m3The simple hydrogenation device can be built in space, has wide adaptability, and can be applied to places such as laboratories of colleges and universities, scientific research institutions, enterprise research and development centers and the like needing to obtain quick evaluation results.
Adopt the utility model discloses a hydrogenation unit, hydrogenation efficiency is high, and the raw materials quantity is few, and the evaluation time is short.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
fig. 1 is a schematic structural diagram of a hydrogenation apparatus in an embodiment of the present invention.
Description of reference numerals:
1-pressure resistant reaction kettle; 2-a magnetic stirring electric furnace; 3-magnetic stirring; 4-an auxiliary heating unit; 5-a temperature sensor; 6-kettle cover; 7, 8-inlet valve; 9-a gas flow meter; 10-a pressure maintaining valve; 11-a raw material tank; 12-a feed pump; 13-tail gas treatment unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
In the description of the present invention, reference to "one embodiment" means that a specific feature, structure, or parameter, step, or the like described in the embodiment is included in at least one embodiment according to the present invention. Thus, the use of terms such as "in one embodiment," "in one embodiment," and the like, in the description of the invention is not intended to refer specifically to the same embodiment, nor is the use of terms such as "in another embodiment," "in a different embodiment of the invention," "in another embodiment of the invention," and the like, in the description of the invention intended to refer specifically to features that are included in a particular different embodiment. Those of skill in the art will understand that the particular features, structures or parameters, steps, etc., disclosed in one or more embodiments of the present disclosure may be combined in any suitable manner.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
As shown in figure 1, the simple hydrogenation device of the present invention comprises a pressure-resistant reaction kettle 1, and a gas supply unit and a feeding unit connected with the pressure-resistant reaction kettle 1. The gas supply unit is used for supplying hydrogen to the pressure-resistant reaction kettle 1, and the feeding unit is used for supplying raw materials to be hydrogenated to the pressure-resistant reaction kettle 1.
The pressure-resistant reaction kettle 1 comprises a heating and stirring unit. In one embodiment, the heating and stirring unit includes a magnetic stirring electric furnace 2 and a magnetic stirrer 3. The magnetic stirring electric furnace 2 is arranged below the pressure-resistant reaction kettle 1, and the magnetic stirrer 3 is placed in the pressure-resistant reaction kettle 1. In another embodiment, the heating and stirring unit may be a heating furnace disposed below the pressure-resistant reaction tank 1 and a stirrer disposed at the top of the pressure-resistant reaction tank 1. Alternatively, the heating and stirring unit may be a hot oil bath, and the pressure-resistant reaction vessel 1 is placed in the hot oil bath.
In a preferred embodiment, an auxiliary heating unit 4 is provided on the outer wall of the pressure-resistant reaction vessel. The auxiliary heating unit 4 may be an electric tracing band, for example. Or the auxiliary heating unit is a heat-conducting oil heating unit, the outer wall of the pressure-resistant reaction kettle is provided with an interlayer, heat-conducting oil is filled in the interlayer, and the pressure-resistant reaction kettle can be heated through the heat-conducting oil. The pressure-resistant reaction kettle 1 can be also provided with a temperature sensor 5 for monitoring the temperature inside the reaction kettle in real time. The temperature sensor 5 may be a thermocouple. In one embodiment, the 6-step cover of the pressure-resistant reaction vessel 1 is a detachable cover.
The gas supply unit is connected with the top of the pressure-resistant reaction kettle 1. In one embodiment, the gas supply unit is a hydrogen cylinder. The hydrogen steel bottle passes through the intake pipe and links to each other with withstand voltage reation kettle 1, is provided with gas flowmeter and admission valve in the intake pipe, can accurate control hydrogen's flow. In another embodiment, the gas supply unit may further include a nitrogen gas cylinder connected to the pressure-resistant reaction vessel 1 through a gas inlet pipe, and nitrogen gas may be used to replace the gas in the pressure-resistant reaction vessel 1.
As shown in fig. 1, in one embodiment, the gas inlet pipe includes two branch pipes at an end near the gas supply unit, one of the branch pipes is connected to a hydrogen gas source, the other branch pipe is connected to a nitrogen gas source, the two branch pipes are provided with gas inlet valves 7 and 8, respectively, and the gas inlet pipe is provided with a gas flow meter 9 and a pressure maintaining valve 10 at an end near the pressure-resistant reaction vessel.
The feeding unit is connected with the top of the pressure-resistant reaction kettle 1. In one embodiment, the feed unit comprises a feed tank 11 and a feed pump 12. The feed pump 12 may be a peristaltic pump.
In one embodiment, the hydrogenation apparatus of the present invention may further include a tail gas treatment unit 13 for treating tail gas generated in the hydrogenation reaction.
According to an embodiment of the present invention, the experimental process using the hydrogenation apparatus is as follows:
1. before the experiment, an experimental scheme (catalyst reduction and hydrogenation reaction conditions: temperature, pressure and time) is designed;
2. preparing required equipment and samples before experiment; (reaction kettle, hot oil bath, pressure stabilizing valve, sample pump, experiment raw material, hydrogenation catalyst, steel cylinder gas for experiment, heat tracing and temperature control instrument)
3. Connecting nitrogen with the reaction kettle to perform pressure detection and leakage test;
4. adding the ground hydrogenation catalyst into the reaction kettle after the leakage test is finished, and screwing down a nut on the reaction kettle; (Again test leakage)
5. Putting the reaction kettle into an oil bath for heating;
6. opening nitrogen to replace the reaction kettle, and introducing hydrogen to reduce the hydrogenation catalyst;
7. after the catalyst is reduced, firstly closing an air inlet valve before the reaction kettle, opening an air outlet valve after the reaction kettle to unload the pressure of the reaction kettle, pumping the raw materials into the reaction kettle through a peristaltic pump, and metering the mass of the pumped raw materials;
8. after the raw materials are put into the reactor, replacing the reactor with nitrogen, and introducing hydrogen to start a hydrogenation reaction experiment;
9. stopping heating after the reaction is finished, stopping stirring, closing a hydrogen gas inlet valve, closing front and rear valves of the reaction kettle under the protection of hydrogen, taking the reaction kettle out of the oil bath for natural cooling, when the temperature of the reaction kettle is reduced to room temperature, removing the pressure of the reaction kettle, and opening the reaction kettle; (attention to high temperature Scald)
10. After the reaction is finished, separating the sample from the catalyst, and classifying and recycling the catalyst;
11. and (5) carrying out aromatic hydrocarbon detection and odor detection on the hydrogenated sample.
Note: nitrogen replacement is required before each hydrogen gas introduction.
The results of the hydrodeodorization experiment are shown in the following table:
| raw materials | Smelling flavor | Remarks for note | |
| Before |
4 stage | Is very strong | |
| After | Level | 1 | Light and slight |
The results of the hydrodeoxygenation experiments are shown in the following table:
| raw material blending wax | Colour(s) |
| Before hydrogenation | Brown colour |
| After hydrogenation | White colour |
The results of the hydrodearomatization experiments are shown in the following table:
| raw material numbering | Aromatic content before hydrogenation/ppm | Aromatic content/ppm after |
| 1# | 79 | 2.58 |
| 2# | 81 | 2.15 |
| 3# | 160 | 3.01 |
It can be seen that utilize the utility model discloses a hydrogenation unit can effectively get rid of smelly flavor and arene in the raw materials to raw materials blending wax can be changed into white by the brown after the hydrogenation, and the above result explains the utility model discloses a hydrogenation unit can effectively promote the quality of raw materials.
According to the above content, the utility model discloses can solve existing equipment operation complicacy, area is big, the hydrogen utilization ratio is low, the raw materials quantity is big, evaluation time is long scheduling problem. The utility model discloses change traditional hydrogenation ware into small-size reation kettle, done like this and reduced unit hydrogenation's area, the utility model discloses hydrogenation has easy operation, lightly portable, high and low priced, and adaptability is wide-range, and hydrogenation efficiency is high, and the raw materials quantity is little, advantage such as evaluation time weak point.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A hydrogenation device is characterized by comprising a pressure-resistant reaction kettle, and an air supply unit and a feeding unit which are connected with the pressure-resistant reaction kettle, wherein the pressure-resistant reaction kettle comprises a heating and stirring unit and a temperature sensor, the air supply unit is connected with the pressure-resistant reaction kettle through an air inlet pipe and used for providing hydrogen into the pressure-resistant reaction kettle, the air inlet pipe is provided with a gas flowmeter, the feeding unit is connected with the pressure-resistant reaction kettle through an inlet pipe and used for providing a raw material to be hydrogenated into the pressure-resistant reaction kettle, and the inlet pipe is provided with a feeding pump; the pressure-resistant reaction kettle further comprises an auxiliary heating unit, the auxiliary heating unit is arranged on the outer wall of the pressure-resistant reaction kettle and comprises an electric tracing band or a heat conducting oil heating unit, the outer wall of the pressure-resistant reaction kettle comprises an interlayer, heat conducting oil is filled in the interlayer, and the hydrogenation device further comprises a tail gas treatment unit for treating tail gas generated in hydrogenation reaction.
2. The hydrogenation apparatus according to claim 1, wherein the gas supply unit further comprises a nitrogen gas source for replacing the gas in the pressure-resistant reaction tank.
3. The hydrogenation apparatus according to claim 1, wherein the heating and stirring unit comprises a magnetic stirring electric furnace and a magnetic stirrer, the magnetic stirring electric furnace is disposed below the pressure-resistant reaction kettle, and the magnetic stirrer is placed in the pressure-resistant reaction kettle.
4. The hydrogenation apparatus according to claim 1, wherein the heating and stirring unit comprises a heating electric furnace and a stirrer, the heating electric furnace is arranged below the pressure-resistant reaction kettle, and the stirrer is arranged at the top of the pressure-resistant reaction kettle.
5. The hydrogenation apparatus according to claim 1, wherein said heating and stirring unit comprises a hot oil bath, and said pressure-resistant reaction vessel is placed in said hot oil bath.
6. The hydrogenation apparatus according to claim 1, wherein the feed pump is a peristaltic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021799898.0U CN213854414U (en) | 2020-08-25 | 2020-08-25 | Hydrogenation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021799898.0U CN213854414U (en) | 2020-08-25 | 2020-08-25 | Hydrogenation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213854414U true CN213854414U (en) | 2021-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021799898.0U Active CN213854414U (en) | 2020-08-25 | 2020-08-25 | Hydrogenation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213854414U (en) |
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2020
- 2020-08-25 CN CN202021799898.0U patent/CN213854414U/en active Active
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