Device and method for testing cosolvent effect of liquid ammonia product oil mixing system

Abstract

The invention provides a device and a method for testing the cosolvent effect of a liquid ammonia product oil mixing system. The device comprises a visual reaction kettle module, a cosolvent automatic titration system, a feeding module and a data acquisition system. The visual reaction kettle module is used for providing a temperature-controllable and pressure-controllable reaction environment and realizing material mixing; according to the automatic titration system for the cosolvent, closed-loop control is formed through a driving motor, a transmission ball screw and a displacement sensor, trace, accurate, repeatable and quantitative addition of the cosolvent is realized, and a titration injector can be quickly replaced to adapt to different cosolvents; the feeding module is used for accurately metering and adding liquid ammonia and product oil; and the data acquisition system synchronously integrates temperature and pressure sensors and visual image data. The device has the advantages of being compact in structure, flexible in operation and accurate in measurement, and the improvement effect of different cosolvents on the liquid ammonia-finished product oil intermiscibility is quantitatively evaluated by controlling the type and the adding amount of the cosolvents in a programmed mode and simulating the pipeline transportation working condition.

Description

Technical Field

[0001] This invention relates to the field of liquid ammonia-finished oil compatibility analysis technology, and is a device and method for quantitative analysis of the co-solvent effect of liquid ammonia-finished oil mixture system with integrated automatic titration system, particularly a device and method for testing the co-solvent effect of liquid ammonia-finished oil mixture system. Background Technology

[0002] With the advancement of the "dual carbon" goals and the rapid development of liquid ammonia as a clean hydrogen energy carrier, my country's demand for liquid ammonia continues to grow. To optimize regional energy allocation, my country plans to use the abundant renewable energy resources in the western regions for ammonia production and then transport the liquid ammonia sequentially to the eastern regions with high resource demand via a mature refined oil pipeline system. However, the differences in physical properties and compatibility between liquid ammonia and refined oil lead to phenomena such as stratification, emulsification, or interface instability during mixing, resulting in a surge in mixed oil sections in pipeline transportation, directly affecting distribution efficiency and oil quality.

[0003] Adding co-solvents is considered a key technique to improve the miscibility of liquid ammonia with refined oil products. However, current research in this field faces several bottlenecks: while traditional reactors can achieve basic mixing, they struggle to simulate the low-temperature environment required for liquid ammonia transport and do not consider dynamic shear and co-solvent variable control. The mixed-oil experimental loop platform system is complex, costly, and cannot accurately capture the critical point of the liquid ammonia-oil phase transition. Research on the miscibility of liquid ammonia-oil remains at the qualitative stage, hindering the precise design of co-solvent addition processes in industrial applications.

[0004] Currently, there is limited research both domestically and internationally on the sequential pipeline transport of liquid ammonia and refined oil products, and no reports have been found on instruments for testing the solubilizing effect of liquid ammonia-refined oil mixtures. Therefore, it is necessary to develop a device and method for testing the solubilizing effect of liquid ammonia-refined oil mixtures. By programmatically controlling the type and amount of solubilizer added, the device can simulate the state of the ternary mixture of liquid ammonia-refined oil-solidator under different pipeline transport temperatures and pressures, quantitatively evaluating the solubilizing effect of different solubilizers on liquid ammonia-refined oil. This will provide data support for realizing the sequential pipeline transport of liquid ammonia in refined oil products and lay a research foundation. Summary of the Invention

[0005] In view of the shortcomings of the existing technologies, the purpose of this invention is to provide a testing device for the effect of co-solvent in a liquid ammonia-finished oil mixing system. This testing device can precisely control the amount of co-solvent added, construct a ternary mixing system of liquid ammonia-finished oil-co-solvent under simulated pipeline transportation temperature and pressure conditions, monitor the dynamic changes of the oil mixing section in real time, and quantitatively evaluate the enhancement effect of different co-solvents on compatibility. This provides data support for the screening and dosage optimization of co-solvents in the sequential pipeline transportation process of liquid ammonia-finished oil.

[0006] Another objective of this invention is to provide a testing method for the aforementioned testing device. This method provides experimental basis for the design of a cosolvent addition process for the sequential pipeline transportation of liquid ammonia and finished oil by simultaneously acquiring multi-dimensional parameters such as morphological images, temperature, and pressure of the ternary mixed system.

[0007] A device for testing the co-solvent effect of a liquid ammonia-oil mixture system is characterized by comprising a visual reaction vessel module, an automatic co-solvent titration system, a feeding module, and a data acquisition system.

[0008] The visualized reactor module consists of an inner reactor vessel, a reactor viewing window, an outer reactor wall, a reactor warming cavity, a reactor cover, a stirring motor, a stirring rod, a feed inlet, a nitrogen purging port, a titration inlet, a water inlet, a water outlet, a water bath device, an exhaust port, a drain port, and a waste liquid and waste gas treatment device. The reactor adopts a double-layer structure, with a warming cavity formed between the outer and inner reactor walls. This warming cavity is equipped with a water inlet and an outlet, which are connected to an external water bath device via pipelines. The reaction temperature inside the reactor is precisely controlled by a water circulation system with a temperature-regulating water bath, simulating different pipeline environments. A reactor lid is installed on top, with a stirring rod driven by a stirring motor extending into the reactor to ensure uniform mixing of materials. The reactor body is equipped with a feed inlet, a nitrogen purging port, a titration inlet, an exhaust port, and a drain port, with the exhaust port and drain port connected to waste liquid and gas treatment devices. A viewing window is provided on one side of the reactor body for observing the mixing process. The automatic titration system for co-solvent includes a titration syringe, a syringe holder, a displacement sensor, a drive ball screw, and a drive motor. The titration syringe is mounted on the reactor lid via the syringe holder. The drive motor is programmed and controlled by a workstation. The output of the drive motor is connected to the drive ball screw, which is connected to the piston of the titration syringe to push the piston through the titration inlet to titrate the co-solvent into the reactor. The drive ball screw provides precise linear drive. The displacement sensor monitors the piston displacement in real time and is connected to the workstation to form a closed-loop control with the drive motor, ensuring the accuracy of the co-solvent addition volume. The feeding module consists of a liquid ammonia cylinder, an oil tank, a nitrogen cylinder, a liquid ammonia pump, an oil pump, a first ball valve, a second ball valve, a first regulating valve, a second regulating valve, and a flow meter. The nitrogen cylinder is connected to a nitrogen purging port via a pipeline. The nitrogen flow rate is adjusted by controlling the second ball valve located on the pipeline to purge the air inside the reactor before the experiment. The outlet of the liquid ammonia cylinder is connected in sequence to the liquid ammonia pump, the second regulating valve, and the flow meter. The outlet of the oil tank is connected in sequence to the first ball valve, the oil pump, the first regulating valve, and the flow meter. The regulating valve and the flow meter enable material switching, flow rate adjustment, and precise metering. Finally, the material enters the reactor through the feed inlet. The data acquisition system consists of a first temperature and pressure sensor, a second temperature and pressure sensor, a light source, a camera, and a workstation. The first and second temperature and pressure sensors are used to monitor the temperature and pressure parameters inside the reactor in real time. The light source and camera are positioned facing the reactor's viewing window to form a visual recording unit, used to capture image information of the mixing process.

[0009] The working process of this invention is as follows: First, the target temperature is set through the workstation, and the water bath device is started to preheat or precool the reactor. The nitrogen cylinder valve is opened, and the interior of the reactor is purged through the nitrogen purging port to replace air and ensure experimental safety. After purging, the first regulating valve is opened, the oil pump is started, and the finished oil is drawn from the oil tank, precisely measured by a flow meter, and then delivered to the reactor through the inlet. Once the set amount is reached, the oil pump and the first regulating valve are closed. Subsequently, the second regulating valve is opened, the liquid ammonia pump is started, and liquid ammonia is drawn from the liquid ammonia cylinder, precisely measured by a flow meter, and then delivered to the reactor through the same inlet to mix with the finished oil. Once the set amount is reached, the liquid ammonia pump and the second regulating valve are closed. Then, the stirring motor is started to simulate the flow mixing state in the pipeline. After the system stabilizes, the automatic titration program for the co-solvent is started. The syringe holder fixes the titration syringe containing the co-solvent to be tested, the drive motor is started, driving the transmission ball screw to rotate, which in turn pushes the syringe piston to make precise linear motion. During this process, the movement of the syringe plunger triggers a displacement sensor, which measures the change in plunger displacement in real time, indirectly monitoring the change in piston displacement. This ensures that the co-solvent is precisely and quantitatively added to the reactor at a programmed rate through the titration inlet. Throughout the titration and mixing process, temperature and pressure sensors monitor the reactor's internal parameters in real time. A camera, aided by a light source, continuously captures images of the mixing system through the reactor's viewing window. All sensor data and image signals are simultaneously transmitted to the workstation for recording and analysis. After the experiment, the waste gas from the reactor is discharged through the exhaust port into a waste liquid and waste gas treatment device for disposal, while the residual liquid is discharged through the drain port. By changing the type of co-solvent in the titration syringe and repeating the above operation, the improvement effects of different co-solvents on the miscibility of liquid ammonia and finished oil can be systematically compared. The workstation automatically generates quantitative evaluation results based on the collected data, providing a reliable basis for co-solvent screening.

[0010] This invention addresses the pain points of "long mixing sections and poor compatibility" in the pipeline transportation of liquid ammonia / finished oil. By introducing a co-solvent as a third component, a ternary system of "liquid ammonia-co-solvent-finished oil" is constructed. By controlling the type and amount of co-solvent added, the co-solvent's solubilizing effect on the mixed system is quantitatively tested. Simultaneously, temperature and pressure changes are correlated to analyze the optimal performance of the co-solvent under different operating conditions and output the optimal co-solvent screening results.

[0011] The device of this invention has the advantages of compact structure, wide applicability, and flexible operation: It is highly integrated and rationally laid out, combining feeding, temperature control, stirring, titration, monitoring, control, and data processing into one unit. Programmed control is achieved through a workstation, improving experimental efficiency and repeatability. Employing high-precision pumps, valves, sensors, and an automatic titration system, it achieves precise control and measurement of key parameters such as material quantity, temperature, pressure, and co-solvent addition. Combined with image analysis technology, it enables a shift from qualitative to quantitative evaluation of co-solvent effects. The device allows for flexible adjustment of temperature and pressure and controllable stirring and shearing, better simulating actual conditions during pipeline transportation, making the experimental results more instructive. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention. Among them, 1—Liquid ammonia bottle, 2—Oil tank, 3—Nitrogen cylinder, 4—First ball valve, 5—Oil pump, 6—Second ball valve, 7—Liquid ammonia pump, 8—First regulating valve, 9—Second regulating valve, 10—Water bath device, 11—Flow meter, 12—Inlet, 13—Nitrogen purging port, 14—Outlet, 15—Titting inlet, 16—Automatic titration operating table, 17—Titting syringe, 18—Instrument holder, 19—Displacement sensor, 20—Transmission ball screw, 21—Drive motor, 22—Stirring motor, 23—Reaction vessel cover, 24—Inner vessel of reaction vessel, 25—Workstation, 26—Inner wall of reaction vessel, 27—Outer wall of reaction vessel, 28—Temperature chamber of reaction vessel, 29—Exhaust port, 30—First temperature and pressure sensor, 31—Reaction vessel viewing window, 32—Camera, 33—Second temperature and pressure sensor, 34—Waste liquid and waste gas treatment device, 35—Stirring rod, 36—Drain, 37—Inlet, 38—Light source. Detailed Implementation

[0014] See appendix Figure 1 A testing device for the co-solvent effect of a liquid ammonia-oil mixture system includes a visual reaction vessel module, an automatic co-solvent titration system, a feeding module, and a data acquisition system.

[0015] The visualization reactor module consists of an inner reactor 24, a reactor viewing window 31, an outer reactor wall 27, an inner reactor wall 26, a reactor temperature chamber 28, a reactor cover 23, a stirring motor 22, a stirring rod 35, a feed inlet 12, a nitrogen purging port 13, a titration inlet 15, a water inlet 37, a water outlet 14, a water bath device 10, an exhaust port 29, a drain port 36, and a waste liquid and waste gas treatment device 34. The reactor adopts a double-layer structure, with a temperature chamber 28 formed between the outer wall 27 and the inner wall 26 of the reactor. The temperature chamber 28 is equipped with a water inlet 37 and a water outlet 14. The water inlet 37 and the water outlet 14 are connected to an external water bath device 10 through pipelines. The reaction temperature inside the reactor 24 is precisely controlled by the water circulation between the temperature chamber 28 and the water bath device 10, which has a water temperature regulation function. The reactor top is equipped with a reactor cover 23 and a stirring rod 35 driven by a stirring motor 22 to achieve uniform mixing of materials. The reactor body is equipped with a feed inlet 12, a nitrogen purging port 13, a titration inlet 15, an exhaust port 29, and a drain port 36. The exhaust port 29 and the drain port 36 are respectively connected to a waste liquid and waste gas treatment device 34. A reactor viewing window 31 is provided on one side of the reactor body for observing the mixing process.

[0016] The automatic titration system for co-solvents comprises an automatic titration operating table 16, a titration syringe 17, a syringe holder 18, a displacement sensor 19, a transmission ball screw 20, and a drive motor 21. The drive motor 21 is programmed and controlled by a workstation 25, providing precise linear drive through the transmission ball screw 20. The syringe holder 18 is used to detachably secure the titration syringe 17, facilitating the replacement of different types of co-solvents. The displacement sensor 19 monitors the piston displacement in real time, forming a closed-loop control with the drive motor 21 to ensure the accuracy of the co-solvent addition volume. The system connects to the inner vessel of the reaction vessel via the titration inlet 15, enabling the precise and repeatable quantitative addition of co-solvents in minute quantities, providing crucial operation for co-solvent comparison experiments.

[0017] The feeding module consists of a liquid ammonia cylinder 1, an oil tank 2, a nitrogen cylinder 3, a liquid ammonia pump 7, an oil pump 5, a first ball valve 4, a second ball valve 6, a first regulating valve 8, a second regulating valve 9, and a flow meter 11. The nitrogen cylinder 3 is connected to a nitrogen purging port 13 via a pipeline, and the flow rate is adjusted by controlling the second ball valve 6 to purge air from the reactor before the experiment. The outlet of the liquid ammonia cylinder 1 is connected in sequence to the liquid ammonia pump 7, the second regulating valve 9, and the flow meter 11. The outlet of the oil tank 2 is connected in sequence to the first ball valve 4, the oil pump 5, the first regulating valve 8, and the flow meter 11. The regulating valves and flow meter enable material switching, flow rate adjustment, and precise metering, ultimately allowing the material to enter the inner reactor through the feed inlet 12.

[0018] The data acquisition system comprises a first temperature and pressure sensor 30, a second temperature and pressure sensor 33, a light source 38, a camera 32, and a workstation 25. The temperature and pressure sensors 30 and 33 are used to monitor the physical parameters inside the reactor in real time. The light source 38 and camera 32 are positioned facing the reactor's viewing window 31, forming a visual recording unit to capture image information of the mixing process. All sensor signals and image data are transmitted to the workstation 25 for synchronous acquisition, recording, and analysis. By processing the data, the effect of the co-solvent is quantified, providing a basis for decision-making in selecting the optimal co-solvent.

[0019] This invention utilizes the aforementioned testing device for the co-solvent effect of a liquid ammonia-finished oil mixture to quantitatively evaluate the influence of different co-solvents on the compatibility of liquid ammonia and finished oil. Specifically, it includes the following steps, i.e., the operating method of the aforementioned device: (1) Set the target temperature through workstation 25 and start water bath device 10 to preheat or precool the reactor; (2) Open the nitrogen cylinder valve 3 and the second ball valve 6, purge the inside of the reactor through the nitrogen purging port 13, replace the air, and then close the second ball valve 6; (3) Open the first ball valve 8, start the oil pump 5, control the opening of the first regulating valve 8 to draw the finished oil from the oil tank 2, and after being accurately measured by the flow meter 11, it is transported to the inner vessel 24 of the reactor through the feed port 12. After the set amount is reached, close the oil pump 5 and the first regulating valve 8. (4) Open the valve of liquid ammonia bottle 1, start liquid ammonia pump 7, control the opening of the second regulating valve 9 to draw liquid ammonia from liquid ammonia bottle 1, after being accurately measured by flow meter 11, it is delivered to the inner vessel 24 of the reactor through the same feed port 12. After the set amount is reached, close liquid ammonia pump 7 and second regulating valve 9. (5) Start the stirring motor 22 to drive the stirring rod 35 to stir the mixture in the inner vessel 24 of the reaction vessel; (6) After the system stabilizes, fix the titration syringe 17 containing the solvent to be tested using the syringe holder 18; (7) Start the automatic titration program of the cosolvent, drive the motor 21 to drive the transmission ball screw 20 to rotate, and push the syringe piston to make a precise linear motion; (8) During the titration process, the displacement sensor 19 monitors the displacement change of the syringe plunger in real time and indirectly measures the piston displacement. The cosolvent is added precisely and quantitatively through the titration inlet 15. (9) The first temperature and pressure sensor 30 and the second temperature and pressure sensor 33 monitor the state parameters inside the reactor in real time, and the camera 32 continuously captures images of the changes in the mixing system through the reactor window 31 with the assistance of the light source 38. (10) All sensor data and image signals are synchronously transmitted to workstation 25 for recording and analysis; (11) After the experiment, the residual waste gas and waste liquid in the vessel are discharged through the exhaust port 29 and the liquid outlet 36 and then introduced into the waste liquid and waste gas treatment device 34 for disposal. (12) Change the type of co-solvent in the titration syringe 17 and repeat steps 1 to 11. The system compares the improvement effect of different co-solvents on the compatibility of liquid ammonia and finished oil. The workstation 25 generates a quantitative evaluation result based on the collected data.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A liquid ammonia finished oil mixture system cosolvent effect test device, characterized in that, The visual reactor module, the automatic titration system of the cosolvent, the feeding module and the data acquisition system are included. The visual reactor module is composed of a reactor inner vessel (24), a reactor window (31), a reactor outer wall (27), a reactor inner wall (26), a reactor temperature cavity (28), a reactor cover (23), a stirring motor (22), a stirring rod (35), a feeding port (12), a nitrogen purging port (13), a titration liquid inlet (15), a water inlet (37), a water outlet (14), a water bath device (10), an exhaust port (29), a liquid outlet (36) and a waste liquid and waste gas treatment device (34). The reactor adopts a double-layer structure, and the temperature cavity (28) is formed between the reactor outer wall (27) and the reactor inner wall (26). The water inlet (37) and the water outlet (14) are arranged on the temperature cavity (28), and the water inlet (37) and the water outlet (14) are connected with the external water bath device (10) through pipelines. The reaction temperature in the reactor inner vessel (24) is accurately controlled through the water circulation of the temperature cavity (28) and the water bath device (10) with water temperature adjustment, and different pipe transportation environments are simulated. The reactor cover (23) is arranged on the top of the reactor, and the stirring rod (35) driven by the stirring motor (22) is arranged on the reactor cover (23) and extends into the reactor inner vessel (24) to realize uniform mixing of materials. The feeding port (12), the nitrogen purging port (13), the titration liquid inlet (15), the exhaust port (29) and the liquid outlet (36) are arranged on the reactor body, and the exhaust port (29) and the liquid outlet (36) are connected to the waste liquid and waste gas treatment device (34). The reactor window (31) for observing the mixing process is arranged on one side of the reactor body. The automatic titration system of the cosolvent includes a titration syringe (17), a syringe holder (18), a displacement sensor (19), a transmission ball screw (20) and a driving motor (21). The titration syringe (17) is installed on the reactor cover (23) through the syringe holder (18). The driving motor (21) is programmable controlled by the workstation (25). The output end of the driving motor (21) is connected with the transmission ball screw (20), and the transmission ball screw (20) is connected with the piston of the titration syringe (17) to push the piston to titrate the cosolvent into the reactor inner vessel (24) through the titration liquid inlet (15). The transmission ball screw (20) provides precise linear driving. The displacement sensor (19) monitors the displacement of the piston in real time and is connected with the workstation (25) to form a closed loop control with the driving motor (21), so as to ensure the accuracy of the volume of the added cosolvent. The feed module is composed of a liquid ammonia bottle (1), an oil tank (2), a nitrogen bottle (3), a liquid ammonia pump (7), an oil pump (5), a first ball valve (4), a second ball valve (6), a first regulating valve (8), a second regulating valve (9) and a flowmeter (11); the nitrogen bottle (3) is connected with a nitrogen purging port (13) through a pipeline, the nitrogen flow is adjusted by controlling the second ball valve (6) arranged on the pipeline, and the inside of the reactor is replaced with air before the experiment; the outlet of the liquid ammonia bottle (1) is sequentially connected with the liquid ammonia pump (7), the second regulating valve (9) and the flowmeter (11), the outlet of the oil tank (2) is sequentially connected with the first ball valve (4), the oil pump (5), the first regulating valve (8) and the flowmeter (11), the switching of materials, the flow adjustment and the accurate metering are realized through the regulating valves and the flowmeter, and finally the materials are fed into the reactor through the feeding port (12) into the reactor (24); The data acquisition system is composed of a first temperature and pressure sensor (30), a second temperature and pressure sensor (33), a light source (38), a camera (32) and a workstation (25); the first temperature and pressure sensor (30) and the second temperature and pressure sensor (33) are used for monitoring the temperature and pressure parameters in the reactor in real time; the light source (38) and the camera (32) are arranged opposite to the reactor window (31) and constitute a visual recording unit, and are used for capturing image information of the mixing process.

2. The liquid ammonia finished oil blending system cosolvent effect test device according to claim 1, characterized in that, The syringe holder (18) in the automatic co-solvent titration system is a detachable structure, which is convenient for quickly replacing the titration syringe (17) containing different co-solvents, and realizes continuous comparative testing of multiple co-solvents.

3. The test device for testing the effect of a mixed system of liquid ammonia finished oil solubilizer according to claim 1 or 2, characterized in that, The automatic co-solvent titration system monitors the displacement of the syringe push handle connected with the piston through the displacement sensor (19), and forms a high-precision closed loop control with the driving motor (21), so that the trace, accurate and repeatable control of the co-solvent addition amount is realized.

4. The liquid ammonia finished product oil mixing system cosolvent effect test device according to claim 1, characterized in that, In the data acquisition system, the workstation (25) synchronously integrates the temperature and pressure sensor signals and high-definition image data, realizes quantitative evaluation of the co-solvent effect through processing and analysis, and provides a decision basis for screening the optimal co-solvent.

5. The method for quantitative evaluation of the effect of different cosolvents on the phase solubility performance by using the device for testing the effect of a cosolvent of a liquid ammonia finished oil mixing system according to claim 1, 2, 3 or 4, characterized in that The method comprises the following steps: 1) The target temperature is set through the workstation (25), and the water bath device (10) is started to preheat or precool the reactor; 2) The valve of the nitrogen bottle (3) and the second ball valve (6) are opened, the inside of the reactor is purged through the nitrogen purging port (13), and after the inside of the reactor is replaced with air, the second ball valve (6) is closed; 3) The first ball valve (8) is opened, the oil pump (5) is started, the opening degree of the first regulating valve (8) is controlled, the finished oil is pumped out from the oil tank (2), accurately measured through the flowmeter (11), and then delivered to the reactor through the feeding port (12), and after the set amount is reached, the oil pump (5) and the first regulating valve (8) are closed; 4) The valve of the liquid ammonia bottle (1) is opened, the liquid ammonia pump (7) is started, the opening degree of the second regulating valve (9) is controlled, the liquid ammonia is pumped out from the liquid ammonia bottle (1), accurately measured through the flowmeter (11), and then delivered to the reactor through the same feeding port (12), and after the set amount is reached, the liquid ammonia pump (7) and the second regulating valve (9) are closed. 5) Start the stirring motor (22) to drive the stirring rod (35) to stir the mixed system in the reactor (24); 6) After the system is stable, fix the titration syringe (17) containing the measured cosolvent by the syringe holder (18); 7) Start the cosolvent automatic titration program to drive the motor (21) to rotate the transmission ball screw (20) to push the piston of the syringe to make precise linear motion; 8) During the titration process, the displacement sensor (19) monitors the displacement change of the syringe push handle in real time to indirectly measure the piston displacement, and the cosolvent is accurately added into the reactor (24) through the titration inlet (15); 9) The first temperature and pressure sensor (30) and the second temperature and pressure sensor (33) monitor the state parameters of the reactor in real time, and the camera (32) continuously shoots the image changes of the mixed system through the reactor window (31) with the assistance of the light source (38); 10) All sensor data and image signals are transmitted to the workstation (25) for recording and analysis; 11) After the experiment is completed, the residual waste gas and waste liquid in the reactor are discharged through the exhaust port (29) and the liquid discharge port (36) and introduced into the waste liquid and waste gas treatment device (34) for disposal; 12) Replace the cosolvent type in the titration syringe (17), repeat steps 1) to 11), compare the improvement effects of different cosolvents on the solubility of liquid ammonia-product oil, and form quantitative evaluation results based on the collected data by the workstation (25).

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