Oil gas recovery adsorbent regeneration system based on cooperation of thermal desorption and vacuum desorption

Abstract

The invention relates to the technical field of oil and gas recovery, and discloses an oil and gas recovery adsorbent regeneration system based on cooperation of thermal desorption and vacuum desorption, the system comprises an adsorption tank, a vacuum pump, a heating module, an intelligent control unit and a water removal module, the intelligent control unit is connected with the adsorption tank, the vacuum pump and the heating module, and an adsorbent is arranged in the adsorption tank; applying a set vacuum degree to the adsorption tank body by using a vacuum pump; the interior of the adsorption tank body is heated through the heating module, and nitrogen is heated through steam or hot nitrogen on the basis of vacuum desorption; the surface pressure of the adsorbent is reduced through vacuum desorption, so that the boiling point of the adsorbate is reduced, the desorption efficiency is remarkably enhanced by combining the high-temperature desorption effect of thermal desorption, and meanwhile, the energy loss is reduced; the intelligent control unit adjusts collaborative parameters of the temperature and the vacuum degree in real time; the system integrates the functions of adsorption, desorption and water removal, supports continuous cycle operation, improves the stability of the oil gas recovery rate, and does not need manual intervention in the regeneration process.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas recovery, and in particular to an oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption. Background Art

[0002] In existing oil and gas recovery processes, adsorbent regeneration mostly uses a single thermal desorption or vacuum desorption technology, which has significant defects: thermal desorption requires high-temperature heating, which shortens the adsorbent life, consumes a lot of energy, and poses a safety hazard; although vacuum desorption can reduce the desorption temperature, it requires maintaining a high vacuum degree for a long time when used alone, resulting in low system operating efficiency and difficulty in meeting the needs of the continuous chemical industry.

[0003] Traditional thermal desorption uses electric heating, which can easily cause localized overheating, while steam heating can cause hydrolysis and deterioration of the adsorbent. Existing systems lack the synergistic protection of inert media like hot nitrogen and a vacuum environment, making it difficult to balance desorption efficiency and material stability. Summary of the Invention

[0004] The purpose of the present invention is to provide an oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption, aiming to solve the problem of relatively single desorption technology used in adsorbent regeneration in the prior art.

[0005] The present invention is achieved by: an oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption, comprising an adsorption tank, a vacuum pump, a heating module, an intelligent control unit, and a water removal module. The intelligent control unit is connected to the adsorption tank, the vacuum pump, and the heating module respectively, and the system dynamically adjusts the synergistic parameters of temperature and vacuum degree through the intelligent control unit;

[0006] The adsorption tank body contains an adsorbent, and a set vacuum degree is applied to the adsorption tank body by the vacuum pump to perform vacuum desorption on the saturated adsorbent; the adsorption tank body is heated by the heating module, and the adsorbent is heated to a set temperature by steam heating or hot nitrogen on the basis of the vacuum desorption, so as to perform thermal desorption treatment;

[0007] After the vacuum desorption and thermal desorption are completed, the adsorbent is dehydrated and cooled by the dehydration module, and after the dehydration and cooling are completed, it is ready for the next adsorption operation.

[0008] Furthermore, the heating module includes a nitrogen pipeline for conveying nitrogen and a steam heat exchanger. The steam heat exchanger is installed on the nitrogen pipeline. The gas outlet end of the nitrogen pipeline is connected to the gas inlet end of the adsorption tank body.

[0009] Furthermore, the heating module also includes an electric heating unit as a backup or auxiliary heating method.

[0010] Furthermore, the dehydration module includes a hot nitrogen dehydration unit and a cold nitrogen cooling unit, which are used for dehydration and cooling the adsorbent respectively.

[0011] Furthermore, the set temperature is 120-180° C., and the set vacuum degree is -90 kPa to -98 kPa.

[0012] Furthermore, the gas outlet end of the adsorption tank is connected to a first recovery pipeline and a second recovery pipeline respectively, and a condenser is installed on the first recovery pipeline; the vacuum pump is installed on the second recovery pipeline.

[0013] Furthermore, the adsorption tank body includes a first adsorption tank and a second adsorption tank arranged in parallel.

[0014] Furthermore, the intelligent control unit includes a distributed sensor and a collaborative control unit. The distributed sensor is used to monitor system parameters such as temperature, pressure and gas concentration to ensure safe operation of the system;

[0015] The collaborative control unit automatically matches the temperature and pressure curve according to the adsorbent type; during the vacuum desorption and thermal desorption processes, the collaborative control unit adjusts the synergistic parameters of temperature and vacuum degree in real time, and dynamically adjusts the parameters according to real-time monitoring data.

[0016] Furthermore, a tank cover is provided on the top of the adsorption tank body, and a longitudinally arranged inner cavity is provided in the adsorption tank body, a longitudinally arranged rotating shaft is installed in the inner cavity, the rotating shaft is rotatably connected to the adsorption tank body, a sleeve is provided on the rotating shaft, the sleeve is detachably connected to the rotating shaft, and a lifting ring is provided on the top of the sleeve;

[0017] The sleeve is provided with a plurality of air flow distribution plates, which are arranged in sequence along the axial direction of the sleeve. The air flow distribution plates are provided with a plurality of hollow frames filled with the adsorbent, and the hollow frames are slidably matched with the air flow distribution plates, and the two are connected to each other. The plurality of hollow frames are arranged adjacent to each other in sequence along the circumference of the sleeve to form a disc-shaped structure, and an enclosing strip is sleeved on the outer periphery of the disc-shaped structure; there is an adsorption interval between the horizontally adjacent hollow frames, and there is a guide interval between the longitudinally adjacent hollow frames;

[0018] A plurality of longitudinally arranged fixing bars are welded on the inner side wall of the inner cavity. The fixing bars are arranged at intervals along the circumference of the inner cavity. A guide slide is provided on the fixing bars. The guide slide is in sliding engagement with the fixing bars.

[0019] The guide slide bar is inwardly recessed to form a plurality of notch grooves, and the plurality of notch grooves are sequentially spaced along the length direction of the guide slide bar, and one side of the enclosing bar is embedded in the notch groove.

[0020] Furthermore, the rotating shaft and the adsorption tank body are connected via a bearing, a track bar is convexly provided on the outer side of the rotating shaft, and the track bar is extended along the length direction of the rotating shaft. The sleeve has a hollow cavity, and the inner side wall of the hollow cavity is recessed to form a track groove that matches the shape of the track bar. The sleeve is slidably engaged with the track bar of the rotating shaft through the track groove;

[0021] The bottom of the rotating shaft passes through the bottom of the adsorption tank body and extends to the outside of the adsorption tank body to form an external section. A gear plate is welded on the external section. The gear plate is engaged with the driving mechanism to realize the rotation drive of the rotating shaft.

[0022] Rolling balls are respectively provided on the upper and lower sides of the notch groove, and the upper and lower sides of the enclosing strip are respectively recessed to form sliding grooves, and the rolling balls are movably abutted in the sliding grooves of the enclosing strip.

[0023] Compared with the existing technology, the oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption provided by the present invention reduces the surface pressure of the adsorbent through vacuum desorption, thereby lowering the boiling point of the adsorbate, and combined with the high-temperature desorption effect of thermal desorption, significantly enhances the desorption efficiency while reducing energy loss; the intelligent control unit adjusts the synergistic parameters of temperature and vacuum degree in real time, avoiding the problems of adsorbent micropore blockage or high-temperature damage caused by traditional fixed parameters, and extending the service life of the adsorbent; integration and automation: the system integrates adsorption, desorption, and water removal functions, supports continuous cycle operation, increases the stability of oil and gas recovery rate, and does not require manual intervention in the regeneration process, solving the problem of relatively single desorption technology used in adsorbent regeneration. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structural arrangement of the oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption provided by the present invention;

[0025] Figure 2 This is a schematic diagram of the front cross-sectional structure of the adsorption tank provided by the present invention;

[0026] Figure 3 This invention Figure 2 Schematic diagram of the enlarged structure of A;

[0027] Figure 4 It is a schematic diagram of the top view of the cross-section structure of the adsorption tank provided by the present invention.

[0028] In the figure: adsorption tank body 10, vacuum pump 20, heating module 30, condenser 40, first recovery pipeline 50, second recovery pipeline 60, tank cover 11, inner cavity 12, rotating shaft 13, sleeve 14, fixing bar 15, guide slide 16, driving mechanism 17, track bar 131, outer section 132, hanging ring 141, air flow distribution plate 142, hollow frame 143, enclosure bar 144, notch groove 161, rolling ball 162, nitrogen pipeline 31, steam heat exchanger 32. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] The implementation of the present invention is described in detail below with reference to specific embodiments.

[0031] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] Reference Figure 1-4 The figure shows a preferred embodiment of the present invention.

[0033] An oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption includes an adsorption tank 10, a vacuum pump 20, a heating module 30, an intelligent control unit, and a water removal module. The intelligent control unit is connected to the adsorption tank 10, the vacuum pump 20, and the heating module 30, respectively. The intelligent control unit controls the system to dynamically adjust the synergistic effect parameters of temperature and vacuum degree.

[0034] The adsorption tank 10 contains an adsorbent. A set vacuum degree is applied to the adsorption tank 10 by a vacuum pump 20 to allow the saturated adsorbent to undergo vacuum desorption. The adsorption tank 10 is heated by a heating module 30. On the basis of vacuum desorption, the adsorbent is heated to a set temperature by steam heating or hot nitrogen gas to perform thermal desorption.

[0035] After vacuum desorption and thermal desorption are completed, the adsorbent is dehydrated and cooled through the dehydration module, and then waits for the next adsorption operation after dehydration and cooling are completed.

[0036] The above-mentioned oil and gas recovery adsorbent regeneration system based on the coordination of thermal desorption and vacuum desorption reduces the surface pressure of the adsorbent through vacuum desorption, thereby lowering the boiling point of the adsorbate. Combined with the high-temperature desorption effect of thermal desorption, it significantly enhances the desorption efficiency while reducing energy loss. The intelligent control unit adjusts the coordinated parameters of temperature and vacuum degree in real time to avoid the problems of adsorbent micropore blockage or high-temperature damage caused by traditional fixed parameters, thereby extending the service life of the adsorbent. Integration and automation: The system integrates adsorption, desorption, and water removal functions to support continuous cycle operation, increase the stability of oil and gas recovery rate, and does not require manual intervention in the regeneration process, solving the problem of relatively single desorption technology used in adsorbent regeneration.

[0037] The adsorbent is activated carbon, resin, or metal-organic framework (MOFs);

[0038] The order of vacuum desorption and thermal desorption can be switched, or they can be carried out simultaneously or used separately, which increases the diversity of the use of adsorbent regeneration and desorption technology.

[0039] Process innovation:

[0040] The "thermal desorption-vacuum desorption synergistic regeneration" process is proposed to achieve deep regeneration of the adsorbent in two stages:

[0041] Stage 1 (vacuum desorption): A vacuum degree of -90 kPa to -98 kPa is applied to the adsorption tank using the vacuum pump 20 to desorb more than 80% of the adsorbed hydrocarbons.

[0042] Stage 2 (thermal desorption): Based on vacuum desorption, the adsorbent is heated to 120-180°C by steam heating or hot nitrogen to completely remove residual hydrocarbons (residual rate <1%).

[0043] Stage 3 (dehydration and cooling): After vacuum desorption and thermal desorption, the adsorbent is dehydrated and cooled with hot nitrogen (air) and cold nitrogen (air) respectively. After dehydration and cooling, it is ready for adsorption again.

[0044] Improved regeneration efficiency: The combined process enables adsorbent regeneration efficiency to reach over 98% (compared to 85% for vacuum desorption alone);

[0045] Safety: Avoid open flame process risks and require a small safety distance.

[0046] Example 1: Regeneration of activated carbon adsorbent

[0047] Operating parameters:

[0048] Vacuum desorption pressure: -95 kPa, duration 20 mins;

[0049] Thermal desorption temperature: 150°C (steam heating), duration 30 mins.

[0050] Effect verification:

[0051] Adsorption capacity recovery rate after regeneration: 99%;

[0052] After 3 months of continuous operation, the average NMHC emission concentration is 100 mg / m 3 (GC-MS detection).

[0053] In this embodiment, the heating module 30 includes a nitrogen pipeline 31 for conveying nitrogen and a steam heat exchanger 32 . The steam heat exchanger 32 is installed on the nitrogen pipeline 31 . The gas outlet of the nitrogen pipeline 31 is connected to the gas inlet of the adsorption tank 10 .

[0054] Uniform heating: The steam heat exchanger 32 transfers heat evenly to the adsorbent through the nitrogen carrier, avoiding local overheating (traditional electric heating is prone to hot spots), and the temperature fluctuation range is controlled within ±5°C;

[0055] Safety and explosion-proof: Nitrogen, as an inert medium, can reduce the oil and gas concentration in the system and eliminate the risk of explosion. It is especially suitable for high-concentration oil and gas environments.

[0056] In this embodiment, the heating module 30 further includes an electric heating unit as a backup or auxiliary heating method.

[0057] Redundancy protection: In the event of a steam or nitrogen supply failure, the electric heating unit can quickly start up to ensure uninterrupted system operation and improve reliability;

[0058] Flexible control: Auxiliary heating can supplement desorption in the local saturated area of the adsorbent, solving the "dead corner" problem of traditional systems.

[0059] In this embodiment, the water removal module includes a hot nitrogen water removal unit and a cold nitrogen cooling unit, which are used for removing water and cooling the adsorbent respectively.

[0060] Efficient water removal: Hot nitrogen removes moisture from the adsorbent surface, preventing residual water film from affecting subsequent adsorption performance; Rapid cooling: Cold nitrogen lowers the adsorbent temperature to an appropriate adsorption range, shortening the system cycle; Integrated process: Water removal and cooling share the same nitrogen medium, simplifying the system structure and reducing equipment costs.

[0061] In this embodiment, the temperature is set to 120-180° C., and the vacuum degree is set to -90 kPa to -98 kPa.

[0062] 120-180℃ takes into account both desorption rate (>90%) and energy economy; -90kPa to -98kPa vacuum degree ensures full volatilization of hydrocarbon substances while avoiding excessive equipment load caused by too high vacuum.

[0063] In this embodiment, the gas outlet end of the adsorption tank 10 is connected to a first recovery pipeline 50 and a second recovery pipeline 60 , respectively. The first recovery pipeline 50 is installed with a condenser 40 ; the vacuum pump 20 is installed on the second recovery pipeline 60 .

[0064] The first pipeline recovers high-boiling-point components (such as heavy hydrocarbons) through the condenser 40, and the second pipeline recovers light components through the vacuum pump 20, thereby achieving classified processing of oil and gas components and improving resource utilization; the separate design prevents condensate from entering the vacuum pump 20, thereby extending the life of the pump body.

[0065] In this embodiment, the adsorption tank body 10 includes a first adsorption tank and a second adsorption tank which are arranged in parallel.

[0066] While one tank is adsorbing, the other is regenerating, achieving 24-hour uninterrupted operation and increasing production capacity by 50%; fault tolerance: when a single tank fails, the system can still operate at a reduced load, and maintenance does not affect overall production.

[0067] In this embodiment, the intelligent control unit includes distributed sensors and a collaborative control unit. The distributed sensors are used to monitor system parameters such as temperature, pressure, and gas concentration to ensure safe operation of the system.

[0068] The collaborative control unit automatically matches the temperature and pressure curves according to the adsorbent type; during the vacuum desorption and thermal desorption processes, the collaborative control unit adjusts the synergistic parameters of temperature and vacuum degree in real time, and dynamically adjusts the parameters based on real-time monitoring data.

[0069] Precise control: Automatically match the optimal temperature-vacuum curve according to the adsorbent type (such as activated carbon, molecular sieve) to improve desorption adaptability.

[0070] Real-time optimization: Sensor monitoring data dynamically adjusts parameters to address operating condition fluctuations such as adsorbent aging and changes in oil and gas composition.

[0071] Safety protection: Real-time monitoring of gas concentration, pressure and other parameters, triggering alarm or shutdown mechanism to ensure system safety.

[0072] In this embodiment, a tank cover 11 is provided on the top of the adsorption tank body 10. The adsorption tank body 10 has a longitudinally arranged inner cavity 12. A longitudinally arranged rotating shaft 13 is installed in the inner cavity 12. The rotating shaft 13 is rotatably connected to the adsorption tank body 10. A sleeve 14 is sleeved on the rotating shaft 13. The sleeve 14 is detachably connected to the rotating shaft 13. A lifting ring 141 is circumferentially protruded from the top of the sleeve 14.

[0073] The sleeve 14 is provided with a plurality of air flow distribution plates 142, which are arranged in sequence and spaced apart along the axial direction of the sleeve 14. The air flow distribution plates 142 are provided with a plurality of hollow frames 143 filled with adsorbent. The hollow frames 143 slide in conjunction with the air flow distribution plates 142 and are interconnected. The plurality of hollow frames 143 are arranged adjacent to each other along the circumference of the sleeve 14 to form a disc-shaped structure. An enclosing strip 144 is sleeved on the outer circumference of the disc-shaped structure. There is an adsorption interval between horizontally adjacent hollow frames 143, and there is a guide interval between vertically adjacent hollow frames 143.

[0074] A plurality of longitudinally arranged fixing bars 15 are welded to the inner side wall of the inner cavity 12. The fixing bars 15 are arranged at intervals along the circumference of the inner cavity 12. A guide slide 16 is provided on the fixing bars 15. The guide slide 16 is in sliding engagement with the fixing bars 15.

[0075] The guide slide bar 16 is recessed inward to form a plurality of notches 161 . The plurality of notches 161 are sequentially spaced along the length direction of the guide slide bar 16 , and one side of the enclosing bar 144 is embedded in the notch 161 .

[0076] Uniform distribution of airflow: The rotating shaft 13 drives the airflow distribution plate 142 to rotate, so that the gas flows evenly in the adsorbent layer, eliminating "dead zones"; the multi-layer hollow frame 143 forms a honeycomb flow channel, and the airflow distribution uniformity index is ≥0.95, avoiding local adsorbent failure caused by the "channeling effect".

[0077] Modular loading: The lifting ring 141 design supports rapid crane lifting, and the single adsorbent replacement time is ≤ 2 hours (traditional structure requires 8 hours); the hollow frame 143 and the enclosure bar 144 slide together to facilitate rapid adsorbent loading, replacement and maintenance.

[0078] Stable structure: The enclosing strip 144 is embedded in the notch groove 161 to form a mechanical interlock, which improves the ability to resist vibration displacement and is suitable for high-vibration scenarios such as offshore platforms; the fixing strip 15 and the guide slide 16 limit the displacement of the hollow frame 143 to avoid loose structure or adsorbent leakage during rotation.

[0079] In this embodiment, the rotating shaft 13 is connected to the adsorption tank body 10 through a bearing. A track bar 131 is convexly provided on the outer side of the rotating shaft 13. The track bar 131 extends along the length direction of the rotating shaft 13. The sleeve 14 has a hollow cavity. The inner side wall of the hollow cavity is recessed to form a track groove that matches the shape of the track bar 131. The sleeve 14 slides with the track bar 131 of the rotating shaft 13 through the track groove.

[0080] The bottom of the rotating shaft 13 passes through the bottom of the adsorption tank body 10 and extends to the outside of the adsorption tank body 10 to form an external section 132. A gear plate is welded to the external section 132. The gear plate engages with the driving mechanism 17 to realize the rotation drive of the rotating shaft 13.

[0081] Rolling balls 162 are respectively provided on the upper and lower sides of the notch groove 161 , and the upper and lower sides of the enclosing strip 144 are respectively recessed to form sliding grooves, and the rolling balls 162 are movably abutted in the sliding grooves of the enclosing strip 144 .

[0082] Bearing and track bar 131 structure: The bearing connection reduces rotational friction resistance, and the track groove and track bar 131 cooperate to achieve precise transmission and extend the life of the equipment.

[0083] Smooth transmission: The external drive mechanism 17 controls the rotation speed through the gear plate to adapt to the desorption requirements of different working conditions; the gear drive provides stable torque to ensure that the air flow distribution plate 142 rotates at a uniform speed, reducing vibration and noise.

[0084] Low-resistance operation: The rolling ball 162 cooperates with the slide groove to reduce sliding friction and extend the life of the rotating mechanism. Quick maintenance: The sleeve 14 and the rotating shaft 13 are detachably connected, which is convenient for disassembly, cleaning or replacement of damaged parts. The coordinated design of this system comprehensively improves the adsorbent regeneration efficiency while reducing energy consumption and maintenance costs.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption, characterized in that: It includes an adsorption tank, a vacuum pump, a heating module, an intelligent control unit, and a water removal module. The intelligent control unit is connected to the adsorption tank, the vacuum pump, and the heating module respectively. The system dynamically adjusts the synergistic parameters of temperature and vacuum degree through the intelligent control unit. The adsorption tank body contains an adsorbent, and a set vacuum degree is applied to the adsorption tank body by the vacuum pump to perform vacuum desorption on the saturated adsorbent; the adsorption tank body is heated by the heating module, and the adsorbent is heated to a set temperature by steam heating or hot nitrogen on the basis of the vacuum desorption, so as to perform thermal desorption treatment; After the vacuum desorption and thermal desorption are completed, the adsorbent is dehydrated and cooled by the dehydration module, and after the dehydration and cooling are completed, it is ready for the next adsorption operation.

2. The oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption according to claim 1, characterized in that: The heating module includes a nitrogen pipeline for conveying nitrogen and a steam heat exchanger. The steam heat exchanger is installed on the nitrogen pipeline. The gas outlet end of the nitrogen pipeline is connected to the gas inlet end of the adsorption tank body.

3. The oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption according to claim 2, characterized in that: The heating module also includes an electric heating unit as a backup or auxiliary heating method.

4. The oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption according to claim 1, characterized in that: The dehydration module includes a hot nitrogen dehydration unit and a cold nitrogen cooling unit, which are used for dehydration and cooling the adsorbent respectively.

5. The oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption according to claim 1, characterized in that: The set temperature is 120-180° C., and the set vacuum degree is -90 kPa to -98 kPa.

6. The oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption according to claim 5, characterized in that: The gas outlet end of the adsorption tank is connected to a first recovery pipeline and a second recovery pipeline respectively, and a condenser is installed on the first recovery pipeline; the vacuum pump is installed on the second recovery pipeline.

7. The oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption according to any one of claims 1 to 6, characterized in that: The adsorption tank body includes a first adsorption tank and a second adsorption tank arranged in parallel.

8. The oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption according to claim 7, characterized in that: The intelligent control unit includes distributed sensors and a collaborative control unit. The distributed sensors are used to monitor system parameters such as temperature, pressure and gas concentration to ensure safe operation of the system; The collaborative control unit automatically matches the temperature and pressure curve according to the adsorbent type; during the vacuum desorption and thermal desorption processes, the collaborative control unit adjusts the synergistic parameters of temperature and vacuum degree in real time, and dynamically adjusts the parameters according to real-time monitoring data.

9. The oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption according to any one of claims 1 to 6, characterized in that: The top of the adsorption tank body is provided with a tank cover, and the adsorption tank body has a longitudinally arranged inner cavity, and a longitudinally arranged rotating shaft is installed in the inner cavity. The rotating shaft is rotatably connected to the adsorption tank body, and a sleeve is sleeved on the rotating shaft. The sleeve is detachably connected to the rotating shaft, and a lifting ring is circumferentially protruded on the top of the sleeve; The sleeve is provided with a plurality of air flow distribution plates, which are arranged in sequence along the axial direction of the sleeve. The air flow distribution plates are provided with a plurality of hollow frames filled with the adsorbent, and the hollow frames are slidably matched with the air flow distribution plates, and the two are connected to each other. The plurality of hollow frames are arranged adjacent to each other in sequence along the circumference of the sleeve to form a disc-shaped structure, and an enclosing strip is sleeved on the outer periphery of the disc-shaped structure; there is an adsorption interval between the horizontally adjacent hollow frames, and there is a guide interval between the longitudinally adjacent hollow frames; A plurality of longitudinally arranged fixing bars are welded on the inner side wall of the inner cavity. The fixing bars are arranged at intervals along the circumference of the inner cavity. A guide slide is provided on the fixing bars. The guide slide is in sliding engagement with the fixing bars. The guide slide bar is inwardly recessed to form a plurality of notch grooves, and the plurality of notch grooves are sequentially spaced along the length direction of the guide slide bar, and one side of the enclosing bar is embedded in the notch groove.

10. The oil and gas recovery adsorbent regeneration system based on the synergy of thermal desorption and vacuum desorption according to claim 9, characterized in that: The rotating shaft and the adsorption tank body are connected by a bearing. A track bar is convexly provided on the outer side of the rotating shaft. The track bar extends along the length direction of the rotating shaft. The sleeve has a hollow cavity. The inner side wall of the hollow cavity is recessed to form a track groove that matches the shape of the track bar. The sleeve slides with the track bar of the rotating shaft through the track groove. The bottom of the rotating shaft passes through the bottom of the adsorption tank body and extends to the outside of the adsorption tank body to form an external section. A gear plate is welded on the external section. The gear plate is engaged with the driving mechanism to realize the rotation drive of the rotating shaft. Rolling balls are respectively provided on the upper and lower sides of the notch groove, and the upper and lower sides of the enclosing strip are respectively recessed to form sliding grooves, and the rolling balls are movably abutted in the sliding grooves of the enclosing strip.

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