Adsorbent performance detection experimental device and use method

Abstract

The invention belongs to the field of pressure swing adsorption, and particularly relates to an adsorbent performance detection experiment device and a use method, the device comprises a gas cylinder, a gas storage tank, a rotor flow meter, a gas outlet tank, a gas sensor, a gas pipe, a fine adjustment valve, a switch valve, a second rotor flow meter, a booster pump and an adsorption bed; the top end of the gas cylinder is connected with the gas pipe through a micrometering valve; the gas storage tank is connected with the left end gas pipe and the right end gas pipe. The problems that a traditional device is complex in operation, cumbersome, consumables are wasted, the detection efficiency is low, and the requirements for efficient and accurate detection in modern environmental protection and industrial application are difficult to meet are solved. The method is easy and convenient to operate, high in efficiency and low in energy consumption, and the detection accuracy and practicability are remarkably improved.

Description

Technical Field

[0001] The present application relates to a field of pressure swing adsorption, and particularly to an experimental device for detecting the performance of an adsorbent and a usage method thereof. Background Art

[0002] In the field of adsorbent performance detection, as an important adsorption material in adsorption, adsorbents are widely used in fields such as gas adsorption, water treatment, and soil remediation. In order to effectively evaluate the performance of adsorbents, the detection experimental device is an indispensable key technical support tool. However, there are still certain limitations in the existing technology. First of all, traditional adsorbent performance detection devices mainly rely on single or limited test indicators, such as adsorption capacity, selectivity, regeneration ability, and temperature stability. Although these indicators can partially reflect the performance of adsorbents, they cannot comprehensively and dynamically evaluate their overall performance. In addition, traditional devices usually have complex operations, bulky equipment, waste of consumables, and low detection efficiency, and it is difficult to meet the requirements of high-efficiency and accurate detection in modern environmental protection and industrial applications. Summary of the Invention

[0003] In view of these problems, the present application proposes an experimental device for detecting the performance of an adsorbent and a usage method thereof. Through new design concepts and technical improvements, this application can evaluate the performance of adsorbents in multiple dimensions and at multiple levels, while overcoming the deficiencies of the existing technology. Specifically, this application can realize real-time monitoring and data collection of the adsorption process, and provide more comprehensive and accurate performance evaluation results. In addition, this application is easy to operate, has high efficiency, low energy consumption, and significantly improves the accuracy and practicality of detection.

[0004] Technical Solution 1 proposed by the present application:

[0005] An experimental device for detecting the performance of an adsorbent, comprising a first gas cylinder, a second gas cylinder, a third gas cylinder, a gas storage tank, a first rotameter, an outlet gas tank, a gas sensor, a left-end gas pipe, a right-end gas pipe, a lower-end gas pipe, a first fine-tuning valve, a second fine-tuning valve, a first switching valve, a third fine-tuning valve, a fourth fine-tuning valve, a second switching valve, a third switching valve, a fourth switching valve, a second rotameter, a booster pump, and an adsorption bed;

[0006] The top of the first gas cylinder is connected to the left-end gas pipe through the first fine-tuning valve;

[0007] The top of the second gas cylinder is connected to the left-end gas pipe through the second fine-tuning valve;

[0008] The gas storage tank is respectively connected to the left-end gas pipe and the right-end gas pipe;

[0009] The first rotameter is arranged on the left-end gas pipe;

[0010] On the right - hand end gas pipe, a booster pump, a first switch valve, a fourth fine - tuning valve, a second rotameter, a second switch valve, an adsorption bed, a third switch valve, and a fourth switch valve are connected in sequence from left to right;

[0011] The top of the third gas cylinder is connected to the right - hand end gas pipe through a third fine - tuning valve, and the connection point is located between the first switch valve and the fourth fine - tuning valve;

[0012] Both ends of the lower - end gas pipe are connected to the right - hand end gas pipe. The left - hand connection point is located between the second rotameter and the second switch valve, and the right - hand connection point is located between the third switch valve and the gas outlet tank. A fourth switch valve is installed on the lower - end gas pipe;

[0013] A gas sensor is provided on the gas outlet tank.

[0014] Furthermore, the gas outlet tank is a tank with five - sided sealing and one - sided opening, which facilitates the gas to flow in one direction without backflow and does not affect the gas content collected.

[0015] Technical solution two proposed by this application:

[0016] An experimental method for detecting the performance of an adsorbent, realized by using the device described in technical solution one, includes the following steps:

[0017] Step one: First, calculate the ratio of the gas source. Open the first gas cylinder and the fine - tuning valve. Through the left - hand end gas pipe, the gas enters the gas storage tank. Calculate the required gas volume of the first gas cylinder through the first rotameter;

[0018] Step two: Open the second gas cylinder and the second fine - tuning valve. Through the left - hand end gas pipe, the gas enters the gas storage tank. Calculate the required gas volume of the second gas cylinder through the first rotameter;

[0019] Step three: After the adsorption bed is filled with the adsorbent, start the booster pump, open the first switch valve, the second switch valve, and the third switch valve, open the fourth fine - tuning valve. Determine the flow rate by observing the first rotameter, and collect the gas content of the outlet gas through the gas sensor;

[0020] Step four: Close the first switch valve, the second switch valve, and the third switch valve. Open the fourth switch valve, open the third gas cylinder and the third fine - tuning valve to adjust the gas flow rate, and purge the pipeline until the reading of the gas sensor is 0;

[0021] Step five: After the purging is completed, close the third gas cylinder, the third fine - tuning valve, and open the fourth switch valve. Remove the adsorption bed, replace the adsorbent, and repeat the above experiment.

[0022] This application has the following beneficial effects:

[0023] This application proposes an experimental device and method for detecting the performance of adsorbents. The device and method can conduct breakthrough tests on adsorbents and optimize the process parameters of adsorbents, solve the problem of evaluating the adsorption performance of different adsorbents (such as activated carbon, molecular sieves, nanomaterials, etc.), and test the adsorption efficiency under different parameters through dynamic adsorption experiments to help optimize the operating efficiency of industrial processes. Description of the Drawings

[0024] Figure 1 It is the overall structure diagram of an experimental device for detecting the performance of an adsorbent of this application.

[0025] In the figure, 1 - First gas cylinder, 2 - Second gas cylinder, 3 - Third gas cylinder, 4 - Gas storage tank, 5 - First rotameter, 6 - Outlet gas tank, 7 - Gas sensor, 8 - Left - end gas pipe, 81 - Right - end gas pipe, 82 - Lower - end gas pipe, 9 - First fine - tuning valve, 10 - Second fine - tuning valve, 11 - First switch valve, 12 - Third fine - tuning valve, 13 - Fourth fine - tuning valve, 14 - Second switch valve, 15 - Third switch valve, 16 - Fourth switch valve, 17 - Second rotameter, 18 - Booster pump, 19 - Adsorption bed. Detailed Embodiments

[0026] To make the purpose, technical solutions, and advantages of this application clearer and more understandable, this application will be described through specific embodiments shown in the drawings. However, it should be understood that these descriptions are only exemplary and do not limit the scope of this application. In addition, in the following description, the descriptions of well - known structures and technologies are omitted to avoid unnecessarily confusing the concepts of this application.

[0027] Embodiment 1, in combination with Figure 1 , illustrate this embodiment. An experimental device for detecting the performance of an adsorbent includes a first gas cylinder 1, a second gas cylinder 2, a third gas cylinder 3, a gas storage tank 4, a first rotameter 5, an outlet gas tank 6, a gas sensor 7, a left - end gas pipe 8, a right - end gas pipe 81, a lower - end gas pipe 82, a first fine - tuning valve 9, a second fine - tuning valve 10, a first switch valve 11, a third fine - tuning valve 12, a fourth fine - tuning valve 13, a second switch valve 14, a third switch valve 15, a fourth switch valve 16, a second rotameter 17, a booster pump 18, and an adsorption bed 19;

[0028] The top of the first gas cylinder 1 is connected to the left - end gas pipe 8 through the first fine - tuning valve 9;

[0029] The top of the second gas cylinder 2 is connected to the left - end gas pipe 8 through the second fine - tuning valve 10;

[0030] The gas storage tank 4 is respectively connected to the left - end gas pipe 8 and the right - end gas pipe 81;

[0031] The first rotameter 5 is arranged on the left end gas pipe 8;

[0032] On the right end gas pipe 81, a booster pump 18, a first switch valve 11, a fourth fine adjustment valve 13, a second rotameter 17, a second switch valve 14, an adsorption bed 19, a third switch valve 15 and a fourth switch valve 16 are sequentially connected from left to right;

[0033] The top end of the third gas cylinder 3 is connected to the right end gas pipe 81 through a third fine adjustment valve 12, and the connection point is located between the first switch valve 11 and the fourth fine adjustment valve 13;

[0034] Both ends of the lower end gas pipe 82 are connected to the right end gas pipe 81. The left end connection point is located between the second rotameter 17 and the second switch valve 14, and the right end connection point is located between the third switch valve 15 and the gas outlet tank 6. A fourth switch valve 16 is installed on the lower end gas pipe 82;

[0035] A gas sensor 7 is arranged on the gas outlet tank 6.

[0036] Furthermore, the gas outlet tank 6 is a tank with five sides sealed and one side open, which facilitates the gas to flow in one direction without backflow and does not affect the collected gas content.

[0037] Embodiment 2:

[0038] An experimental method for detecting the performance of an adsorbent, realized by using the device described in Technical Solution 1, includes the following steps:

[0039] Step 1: First calculate the ratio of the gas source, open the first gas cylinder 1 and the fine adjustment valve 9, and through the left end gas pipe 8, the gas enters the gas storage tank 4; calculate the required gas volume of the first gas cylinder 1 through the first rotameter 5;

[0040] Step 2: Open the second gas cylinder 2 and the second fine adjustment valve 10, and through the left end gas pipe 8, the gas enters the gas storage tank 4, and calculate the required gas volume of the second gas cylinder 2 through the first rotameter 5;

[0041] Step 3: After the adsorption bed 19 is filled with the adsorbent, start the booster pump 18, open the first switch valve 11, the second switch valve 14 and the third switch valve 15, open the fourth fine adjustment valve 13, determine the flow rate by observing the first rotameter 5, and collect the gas content of the outlet gas through the gas sensor 7;

[0042] Step 4: Close the first switch valve 11, the second switch valve 14 and the third switch valve 15, open the fourth switch valve 16, open the third gas cylinder 3 and the third fine adjustment valve 12 to adjust the gas flow rate, and purge the pipeline until the reading of the gas sensor 7 is 0;

[0043] Step 5: After the purging is completed, close the third gas cylinder 3, the third fine adjustment valve 12, and open the fourth switch valve 16. Remove the adsorption bed 19, replace the adsorbent, and repeat the above experiment.

[0044] The above embodiments are only illustrative of the principles and effects of the present application, and are not intended to limit the present application. Any simple replacement or change within the scope of the technical concept disclosed in the present application and according to the technical solution of the present application shall be within the protection scope of the present application.

Claims

1. An experimental device for detecting the performance of an adsorbent, characterized in that: It includes a first gas cylinder (1), a second gas cylinder (2), a third gas cylinder (3), a gas storage tank (4), a first rotameter (5), an outlet gas tank (6), a gas sensor (7), a left-end gas pipe (8), a right-end gas pipe (81), a lower-end gas pipe (82), a first fine-tuning valve (9), a second fine-tuning valve (10), a first on-off valve (11), a third fine-tuning valve (12), a fourth fine-tuning valve (13), a second on-off valve (14), a third on-off valve (15), a fourth on-off valve (16), a second rotameter (17), a booster pump (18), and an adsorption bed (19); The top of the first gas cylinder (1) is connected to the left-end gas pipe (8) through the first fine-tuning valve (9); The top of the second gas cylinder (2) is connected to the left-end gas pipe (8) through the second fine-tuning valve (10); The gas storage tank (4) is respectively connected to the left-end gas pipe (8) and the right-end gas pipe (81); The first rotameter (5) is arranged on the left-end gas pipe (8); On the right-end gas pipe (81), there are successively connected, from left to right, a booster pump (18), a first on-off valve (11), a fourth fine-tuning valve (13), a second rotameter (17), a second on-off valve (14), an adsorption bed (19), a third on-off valve (15), and a fourth on-off valve (16); The top of the third gas cylinder (3) is connected to the right-end gas pipe (81) through the third fine-tuning valve (12), and the connection point is between the first on-off valve (11) and the fourth fine-tuning valve (13); Both ends of the lower-end gas pipe (82) are connected to the right-end gas pipe (81). The left-end connection point is between the second rotameter (17) and the second on-off valve (14), and the right-end connection point is between the third on-off valve (15) and the outlet gas tank (6). A fourth on-off valve (16) is installed on the lower-end gas pipe (82); The outlet gas tank (6) is provided with a gas sensor (7).

2. The adsorbent performance detection experimental device according to claim 1, characterized in that: The outlet gas tank (6) is a tank with five sides sealed and one side open.

3. An experimental method for detecting the performance of an adsorbent, which is realized by using the experimental device for detecting the performance of an adsorbent described in claim 2, and is characterized in that: It includes the following steps: Step 1: First calculate the ratio of the gas sources. Open the first gas cylinder (1) and the fine-tuning valve (9). Through the left-end gas pipe (8), the gas enters the gas storage tank (4). The required gas volume of the first gas cylinder (1) is calculated through the first rotameter (5); Step 2: Open the second gas cylinder (2) and the second fine-tuning valve (10). Through the left-end gas pipe (8), the gas enters the gas storage tank (4). The required gas volume of the second gas cylinder (2) is calculated through the first rotameter (5); Step 3: After the adsorption bed (19) is filled with the adsorbent, start the booster pump (18), open the first on-off valve (11), the second on-off valve (14), and the third on-off valve (15), open the fourth fine-tuning valve (13), determine the flow rate by observing the first rotameter (5), and collect the gas content of the outlet gas through the gas sensor (7); Step 4: Close the first switching valve (11), the second switching valve (14) and the third switching valve (15), open the fourth switching valve (16), turn on the third gas cylinder (3) and the third fine adjustment valve (12) to adjust the gas flow rate, and purge the pipeline until the reading of the gas sensor (7) is 0; Step 5: After the purging is completed, close the third gas cylinder (3) and the third fine adjustment valve (12) and open the fourth switching valve (16), remove the adsorption bed (19), replace the adsorbent, and repeat the above experiment.

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