Isothermal dealkylation generation device for chemical gas production

Abstract

The utility model discloses an isothermal dealkylation generating device for chemical gas production, which is characterized in that a plurality of temperature sensors in a catalyst bed layer of the device can accurately monitor the temperature of different positions and provide accurate data for temperature regulation and control; the cooling coils at the upper end and the lower end are combined with a cooling liquid circulating system of a circulating pump and a cooling liquid storage tank, heat can be effectively taken away, and the bed temperature is uniformly controlled; the controller can intelligently adjust the circulating pump according to feedback of the temperature sensor, and isothermal stable reaction is achieved. In the reaction process, the flow regulating valve of the gas inlet pipeline can accurately control the gas flow to ensure that the gas is in full contact with the catalyst; the gas distribution plates among the multiple layers of fillers of the catalyst bed layer can uniformly disperse the gas, so that the reaction efficiency is improved. On the aspect of performance guarantee, the heat insulation layer on the inner wall of the tank body can reduce heat loss and reduce energy consumption; a gas analysis device of the gas outlet pipeline can analyze product components in real time, and a liquid outlet can discharge reaction impurities, so that the cleanness of the tank body is ensured, and the impurities are prevented from influencing reaction and a catalyst.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical gas production equipment, specifically to an isothermal dehydrocarbon generator for chemical gas production. Background Technology

[0002] In the production of chemical gases, dehydrocarbonization is a crucial step. The purpose of dehydrocarbonization is to remove hydrocarbons from chemical gases, thereby improving their purity and quality. Traditional dehydrocarbonization methods typically employ heating reactions, but this method suffers from uneven reaction temperatures and is prone to localized overheating, leading to catalyst deactivation and low reaction efficiency. Furthermore, traditional dehydrocarbonization equipment lacks effective temperature control, making it difficult to ensure the reaction proceeds under isothermal conditions, thus affecting the dehydrocarbonization effect and the quality of the chemical gases. Therefore, there is a need to develop a device capable of achieving isothermal dehydrocarbonization reactions to improve dehydrocarbonization efficiency and the quality of chemical gases.

[0003] The existing equipment has the following shortcomings: Firstly, the existing equipment uses a heating method for reaction temperature control, which cannot guarantee uniform temperature, easily leading to localized overheating. This results in catalyst deactivation, shortened lifespan, and reduced reaction efficiency. Furthermore, the lack of an effective temperature control system makes it difficult to achieve isothermal reactions, affecting dehydrogenation efficiency and gas quality. Secondly, regarding reaction process optimization, the existing equipment lacks a flow regulating valve in the inlet pipeline, preventing precise control of gas flow and resulting in insufficient contact between the gas and catalyst, affecting reaction conversion and selectivity. Thirdly, the catalyst bed does not use multi-layer packing with a gas distribution plate, leading to uneven gas distribution and reduced reaction efficiency. Finally, in terms of performance assurance, the existing equipment has poor insulation on the inner wall of the reaction tank, resulting in significant heat loss, high energy consumption, and difficulty in maintaining a stable temperature. The outlet pipeline lacks a gas analysis device, making timely parameter adjustments difficult. The absence of a drain port at the bottom of the tank prevents timely removal of impurities, affecting tank cleanliness and reaction progress. Utility Model Content

[0004] The purpose of this invention is to provide an isothermal dehydrocarbonization generator for chemical gas production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an isothermal dehydrocarbonization generator for chemical gas production, comprising a reaction vessel, wherein the reaction vessel is a sealed structure, an inlet pipe is installed at the bottom side of the reaction vessel, an outlet pipe is installed at the center of the top of the reaction vessel, a catalyst bed is disposed inside the reaction vessel and located between the inlet pipe and the outlet pipe, the upper and lower ends of the catalyst bed are covered with cooling coils, and multiple temperature sensors are installed inside the catalyst bed.

[0006] As a preferred technical solution of this utility model, the inner wall of the reaction vessel is provided with a heat insulation layer, which is made of a material with high temperature resistance and good heat insulation performance to reduce heat loss.

[0007] As a preferred embodiment of this utility model, the inlet pipe is equipped with a flow regulating valve to regulate the flow rate of the chemical gas entering the reaction tank, the outlet pipe is equipped with a gas analysis device to analyze the composition and content of the chemical gas after dehydrogenation, and the bottom of the reaction tank is equipped with a drain port to discharge the liquid generated during the reaction process.

[0008] As a preferred embodiment of this utility model, the upper cooling coil is connected to an inlet pipe, which is connected to the output end of a circulation pump. The circulation pump is fixed to the top of the coolant storage tank and connected to it via a pipe. The lower cooling coil is connected to the coolant storage tank via an outlet pipe.

[0009] As a preferred embodiment of this invention, a controller is installed on the outside of the reaction vessel, and the controller is electrically connected to a circulating pump and a temperature sensor.

[0010] As a preferred embodiment of this invention, the catalyst bed is composed of multiple layers of catalyst packing, and a gas distribution plate is provided between each layer of catalyst packing to ensure that the chemical gas is evenly distributed in the catalyst bed.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) In terms of isothermal reaction control, multiple temperature sensors in the catalyst bed can accurately monitor the temperature at different locations, providing precise data for temperature regulation; the cooling coils at the upper and lower ends combined with the circulating pump and the cooling liquid storage tank form a cooling liquid circulation system, which can effectively remove heat, uniformly control the bed temperature, and avoid local overheating; the controller can intelligently adjust the circulating pump according to the feedback from the temperature sensor to achieve isothermal stable reaction.

[0013] (2) During the reaction process, the flow regulating valve of the gas inlet pipe can accurately control the gas flow rate to ensure that the gas is in full contact with the catalyst; the gas distribution plate between the multi-layer packing of the catalyst bed can make the gas evenly dispersed and improve the reaction efficiency.

[0014] (3) In terms of performance assurance, the heat insulation layer on the inner wall of the tank can reduce heat loss and energy consumption, and ensure stable reaction temperature; the gas analysis device in the gas outlet pipe can analyze the product composition in real time, and the liquid outlet can discharge reaction impurities, ensuring the cleanliness of the tank and preventing impurities from affecting the reaction and catalyst. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an isothermal dehydrocarbonization generator for chemical gas production according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the reaction tank of an isothermal dehydrocarbonization generator for chemical gas production according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the catalyst bed structure of an isothermal dehydrocarbonization generator for chemical gas production according to an embodiment of the present invention.

[0019] Figure label:

[0020] 1. Reaction vessel; 2. Inlet pipe; 3. Outlet pipe; 4. Catalyst bed; 5. Cooling coil; 6. Temperature sensor; 7. Insulation layer; 8. Flow regulating valve; 9. Gas analysis device; 10. Liquid inlet pipe; 11. Circulation pump; 12. Coolant storage tank; 13. Liquid outlet pipe; 14. Controller; 15. Catalyst packing; 16. Gas distribution plate; 17. Drain port. Detailed Implementation

[0021] The utility model will now be further described with reference to the accompanying drawings and specific embodiments:

[0022] Please see Figure 1-3 An isothermal dehydrocarbonization generating device for chemical gas production according to an embodiment of the present invention includes a reaction tank 1, which is a sealed structure. An inlet pipe 2 is installed on the bottom side of the reaction tank 1, and an outlet pipe 3 is installed at the center of the top of the reaction tank 1. A catalyst bed 4 is arranged inside the reaction tank 1 and is located between the inlet pipe 2 and the outlet pipe 3. Cooling coils 5 cover both the upper and lower ends of the catalyst bed 4. Multiple temperature sensors 6 are installed inside the catalyst bed 4.

[0023] The reaction vessel 1 provides a sealed reaction space, housing other components for the dehydrocarbonization reaction of chemical gases. The inlet pipe 2 delivers the chemical gases into the reaction vessel 1. The outlet pipe 3 discharges the dehydrocarbonized chemical gases. The catalyst bed 4 is where the dehydrocarbonization reaction of the chemical gases takes place. The cooling coil 5 removes heat from the reaction through coolant circulation, controlling the bed temperature. Temperature sensors 6 precisely monitor the temperature at different locations, providing data for temperature control.

[0024] In this embodiment, the inner wall of the reaction vessel 1 is provided with a heat insulation layer 7, which is made of a material that is resistant to high temperature and has good heat insulation performance in order to reduce heat loss.

[0025] In this embodiment, a flow regulating valve 8 is provided on the gas inlet pipe 2 to regulate the flow rate of the chemical gas entering the reaction tank 1, and a gas analysis device 9 is provided on the gas outlet pipe 3 to analyze the composition and content of the chemical gas after dehydrocarbonization. A drain port 17 is provided at the bottom of the reaction tank 1 to discharge the liquid generated during the reaction process.

[0026] In this embodiment, the upper cooling coil 5 is connected to the liquid inlet pipe 10, which is connected to the output end of the circulation pump 11. The circulation pump 11 is fixed on the top of the coolant storage tank 12 and connected to it through a pipe. The lower cooling coil 5 is connected to the coolant storage tank 12 through the liquid outlet pipe 13.

[0027] The inlet pipe 10 delivers coolant into the cooling coil 5. The circulation pump 11 provides power for coolant circulation. The coolant storage tank 12 stores coolant, providing a coolant source for the cooling system. The outlet pipe 13 allows the coolant to flow back to the storage tank.

[0028] In this embodiment, a controller 14 is installed on the outside of the reaction vessel 1, and the controller 14 is electrically connected to the circulation pump 11 and the temperature sensor 6.

[0029] The controller 14 is electrically connected to the circulating pump 11 and the temperature sensor 6, and intelligently adjusts the circulating pump based on temperature feedback.

[0030] In this embodiment, the catalyst bed 4 is composed of multiple layers of catalyst packing 15, and a gas distribution plate 16 is provided between each layer of catalyst packing 15 to ensure that the chemical gas is evenly distributed in the catalyst bed 4.

[0031] The catalyst packing 15 provides the catalytically active centers required for the reaction. The gas distribution plate 16 ensures that the chemical gases are uniformly distributed within the catalyst bed 4.

[0032] In practical applications, firstly, an appropriate amount of coolant is injected into the coolant storage tank 12 to provide a coolant source for the cooling system. Then, the controller 14 is turned on to ensure it can receive data from the temperature sensor 6 and control the circulating pump 11. The flow regulating valve 8 on the inlet pipe 2 is opened to precisely adjust the flow rate of the chemical gas entering the reaction tank 1 according to the actual reaction requirements and catalyst performance. The chemical gas enters the reaction tank 1 through the inlet pipe 2 and undergoes a dehydrocarbonization reaction in the catalyst bed 4, aided by the catalytic active centers provided by the catalyst packing 15. The gas distribution plate 16 between each layer of catalyst packing 15 ensures uniform dispersion of the chemical gas, improving reaction efficiency. Multiple temperature sensors 6 inside the catalyst bed 4 monitor the temperature at different locations in real time and transmit the data to the controller 14. When an abnormal temperature is detected, the controller 14 adjusts the operating status of the circulating pump 11 based on the received temperature feedback information. The circulating pump 11 provides power for the circulation of coolant, allowing coolant to flow from the coolant storage tank 12 through the inlet pipe 10 into the upper cooling coil 5. The coolant circulation carries away the heat generated by the reaction, and then the coolant flows back from the lower cooling coil 5 through the outlet pipe 13 to the coolant storage tank 12. This uniformly controls the bed temperature, avoids local overheating, and ensures the reaction proceeds stably under isothermal conditions. The dehydrogenated chemical gas is discharged through the outlet pipe 3. The gas analysis device 9 on the outlet pipe 3 analyzes the composition and content of the dehydrogenated chemical gas in real time, allowing operators to understand the reaction effect and adjust reaction parameters based on the analysis results. After the reaction is completed, the flow regulating valve 8 on the inlet pipe 2 is closed to stop the input of chemical gas. The circulating pump 11 is turned off, stopping the coolant circulation. The controller 14 and the gas analysis device 9 are then shut down, completing the entire dehydrogenation reaction process.

[0033] In the description of this utility model, it should be noted that the terms "top," "bottom," "one side," "the other side," "front," "back," "middle part," "inner," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An isothermal dehydrocarbonization generator for chemical gas production, characterized in that, The reaction vessel includes a reaction vessel (1), which is a sealed structure. An air inlet pipe (2) is installed on the bottom side of the reaction vessel (1), and an air outlet pipe (3) is installed at the center of the top of the reaction vessel (1). A catalyst bed (4) is provided inside the reaction vessel (1) and is located between the air inlet pipe (2) and the air outlet pipe (3). Cooling coils (5) cover both the upper and lower ends of the catalyst bed (4). Multiple temperature sensors (6) are installed inside the catalyst bed (4).

2. The isothermal dehydrocarbonization generator for chemical gas production according to claim 1, characterized in that, The inner wall of the reaction vessel (1) is provided with a heat insulation layer (7), which is made of a material that is resistant to high temperature and has good heat insulation performance in order to reduce heat loss.

3. The isothermal dehydrocarbonization generator for chemical gas production according to claim 1, characterized in that, The inlet pipe (2) is equipped with a flow regulating valve (8) to regulate the flow rate of chemical gas entering the reaction tank (1). The outlet pipe (3) is equipped with a gas analysis device (9) to analyze the composition and content of the chemical gas after dehydrogenation. The bottom of the reaction tank (1) is equipped with a drain port (17) to discharge the liquid generated during the reaction process.

4. The isothermal dehydrocarbonization generator for chemical gas production according to claim 1, characterized in that, The upper cooling coil (5) is connected to an inlet pipe (10), which is connected to the output end of a circulation pump (11). The circulation pump (11) is fixed on the top of the coolant storage tank (12) and connected to it through a pipe. The lower cooling coil (5) is connected to the coolant storage tank (12) through an outlet pipe (13).

5. The isothermal dehydrocarbonization generator for chemical gas production according to claim 1, characterized in that, A controller (14) is installed on the outside of the reaction vessel (1), and the controller (14) is electrically connected to the circulating pump (11) and the temperature sensor (6).

6. The isothermal dehydrocarbonization generator for chemical gas production according to claim 1, characterized in that, The catalyst bed (4) is composed of multiple layers of catalyst packing (15), and a gas distribution plate (16) is provided between each layer of catalyst packing (15) to ensure that the chemical gas is evenly distributed in the catalyst bed (4).

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