Screening preparation process of catalyst for refrigerant preparation
By designing a screening preparation system, automatically matching the catalyst preparation process and performing performance testing, the problem of manual selection misjudgment in the prior art is solved, and the preparation efficiency and quality are improved.
Patent Information
- Application Number
- CN202510011597.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-04
- Publication Date
- 2025-05-23
AI Technical Summary
In the prior art, it is impossible to automatically select a suitable preparation process based on the type of catalyst prepared, resulting in the possibility of misjudgment in manual selection.
A screening and preparation system is designed, including data input, identification, process matching, execution, monitoring and performance detection modules, which can automatically match and execute corresponding preparation processes according to the catalyst type, and detect and compare the catalyst performance.
Automatically selecting the preparation process according to the type of catalyst is realized, which reduces the possibility of manual misjudgment, and promptly warning of abnormal situations through performance detection, improving the efficiency and quality of catalyst preparation.
Smart Images
Figure CN120029187A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of catalyst screening and preparation, and in particular to a process for screening and preparing a catalyst for preparing a refrigerant. Background Art
[0002] Refrigerant, also known as refrigerant, is the working medium in the refrigeration cycle, which mainly transfers heat through phase change. Function: It absorbs heat when vaporizing in the evaporator and releases heat when condensing in the condenser, thereby achieving a refrigeration effect. Types: There are more than 80 substances that can be used as refrigerants, the most commonly used ones include ammonia, Freon, water and a few hydrocarbons. In addition, there are some new refrigerants, such as mixtures of 3,3,3-trifluoropropyne, 2,3,3,3-tetrafluoropropylene and other components, as well as low-temperature refrigerants of propane, ethylene, methane and other components; catalysts are needed in the preparation of refrigerants, such as: MgO-based solid base catalysts, highly selective HCl removal catalysts, Lewis acid catalysts and dichloromethane catalysts.
[0003] There are various preparation processes for catalysts used in refrigerant preparation, for example: Impregnation method: suitable for the preparation of supported catalysts, with high utilization rate of active components, which can be divided into excess impregnation method and equal amount impregnation method.
[0004] Precipitation method: A precipitate is generated by adding a precipitant, and then the catalyst is obtained by processing. It is suitable for the preparation of oxide or composite oxide catalysts and can be divided into single-component precipitation method, multi-component co-precipitation method, etc.
[0005] Mixing method: each component is mixed into a slurry, then formed and dried, and then activated. It is suitable for the preparation of multi-component catalysts.
[0006] Ion exchange method: Preparation of specific types of catalysts by ion exchange;
[0007] In the prior art, it is not possible to automatically select a preparation process according to the type of catalyst to be prepared, and manual selection may result in misjudgment. Therefore, we propose a screening preparation process for catalysts for refrigerant preparation to solve the above problems. Summary of the invention
[0008] The purpose of the present invention is to solve the shortcomings of the prior art that the preparation process cannot be automatically selected according to the type of catalyst to be prepared, and there is a possibility of misjudgment in manual selection, and a screening preparation process for refrigerant preparation catalyst is proposed.
[0009] In order to achieve the above object, the present invention adopts the following technical solutions:
[0010] A screening and preparation process for a catalyst for preparing a refrigerant comprises the following steps:
[0011] S1. Build a screening and preparation system, which includes a data input module, a data identification module, a process matching module, an execution module, a monitoring module, a performance detection module, a comparison module, an early warning module, a data extraction module, a report generation module, a printing module, a threshold setting module, a process setting module, a process storage module and a display module;
[0012] S2. First, input different types of catalysts through the process setting module, then associate the corresponding preparation processes with the different types of catalysts, and store the associated preparation processes through the process storage module;
[0013] S3, input the name of the catalyst to be prepared through the data input module, identify the catalyst type through the data identification module, match the preparation process corresponding to the catalyst of the same type from the process storage module through the process matching module, execute the matched preparation process through the execution module, and prepare the required catalyst;
[0014] S4. The preparation process is monitored through the monitoring module, the display module displays the monitoring information, the performance data of the prepared catalyst is detected through the performance detection module, the detected data is compared with the threshold value through the comparison module, and when the detected data does not meet the requirements, an early warning is issued through the early warning module.
[0015] Preferably, the data extraction module is used to extract abnormal data, generate a test report through a report generation module, print out the report through a printing module, and set a performance test comparison threshold through a threshold setting module.
[0016] Preferably, the performance detection module includes a catalytic activity detection unit, a heat resistance detection unit, a toxicity resistance detection unit and a mechanical strength detection unit.
[0017] Preferably, the catalytic activity detection unit obtains an XRD spectrum of the catalyst through an XRD test, and compares the diffraction intensity of the characteristic peak with the standard diffraction intensity in the standard XRD spectrum to evaluate the catalytic activity.
[0018] Preferably, the working process of the heat resistance detection unit is as follows: loading catalyst: prepare the catalyst and load it into the reaction tube to ensure that the catalyst is in the correct position and the loading amount is appropriate; install the inner pressure ring, O-ring, thermocouple sleeve and pressure cap in sequence to ensure good sealing; catalyst reduction: open the catalyst evaluation device, set the gas flow rate, purge the gas path, heat up to the specified temperature, reduce the catalyst, and turn off the relevant equipment after the reduction is completed; heat resistance test: set the temperature of the vaporizer, reactor, thermostat and other equipment to ensure that the temperature meets the test requirements. After the reaction starts, continuously observe the performance changes of the catalyst at high temperature, record relevant data, evaluate the heat resistance of the catalyst based on the data, and judge whether it meets the use requirements.
[0019] Preferably, the anti-toxicity detection unit determines the antiviral activity of the catalyst by counting the reduction in the amount of Q-β bacteriophage after ultraviolet light or indoor light.
[0020] Preferably, the mechanical strength testing unit includes strength tests, specifically as follows: single particle strength test: single particle crushing strength: place the catalyst particles between two platforms, apply load evenly until the particles are broken, and record the applied load; blade shear strength: place the catalyst particles under the blade and apply load until the particles are cut, and the strength is expressed by the ratio of the applied load at the time of cutting to the cross-sectional area of the particles;
[0021] Overall stacking crushing strength: For fixed bed catalysts, the strength of a single particle cannot directly reflect the overall crushing situation in the bed, so the overall stacking crushing strength test method is used;
[0022] Wear strength test: Rotational collision method: Applicable to fixed bed catalysts, the wear resistance is tested by rolling wear of the catalyst in a rotating container;
[0023] High-speed air jet method: Applicable to fluidized bed catalysts, the wear strength of the catalyst is tested by high-speed air jet.
[0024] Preferably, the process matching module includes a data receiving unit, an adaptation process matching unit, a process extraction unit and an output unit, the data receiving unit is connected to the adaptation process matching unit, the adaptation process matching unit is connected to the process extraction unit, and the process extraction unit is connected to the output unit.
[0025] Preferably, the process storage module includes an impregnation process unit, a precipitation process unit, a mixing process unit and an ion exchange process unit.
[0026] Preferably, the comparison module comprises a detection data identification unit, and the detection data identification unit is connected to a catalytic activity comparison unit, a heat resistance comparison unit, an anti-toxicity comparison unit and a mechanical strength comparison unit.
[0027] In the present invention, the screening and preparation process of the catalyst for preparing refrigerant has the following beneficial effects:
[0028] First, different types of catalysts are input through the process setting module, and then the corresponding preparation processes are associated with different types of catalysts, and the associated preparation processes are stored through the process storage module. The name of the catalyst to be prepared is input through the data input module, and the catalyst type is identified through the data identification module. The preparation process corresponding to the catalyst of the same type is matched from the process storage module through the process matching module, and the matched preparation process is executed through the execution module to prepare the required catalyst;
[0029] The preparation process is monitored through the monitoring module, the monitoring information is displayed through the display module, the performance data of the prepared catalyst is detected through the performance detection module, the detected data is compared with the threshold value through the comparison module, and when the detected data does not meet the requirements, an early warning is issued through the early warning module;
[0030] The present invention can match a corresponding preparation process according to the type of the prepared catalyst, which is beneficial to the preparation of the catalyst. At the same time, the performance of the catalyst can be tested and an abnormality can be promptly warned. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 A block diagram of a screening and preparation system for a screening and preparation process of a catalyst for preparing a refrigerant proposed by the present invention;
[0032] Figure 2 A block diagram of a performance detection module for a screening and preparation process of a catalyst for preparing a refrigerant proposed by the present invention;
[0033] Figure 3 A block diagram of a process matching module for a screening and preparation process of a catalyst for preparing a refrigerant proposed by the present invention;
[0034] Figure 4 A block diagram of a process storage module for a screening and preparation process of a catalyst for preparing a refrigerant proposed by the present invention;
[0035] Figure 5 This is a block diagram of a comparison module for a screening and preparation process of a catalyst for preparing a refrigerant proposed in the present invention. DETAILED DESCRIPTION
[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0037] Embodiment 1
[0038] Reference Figure 1-Figure 5 , a screening and preparation process for a catalyst for preparing a refrigerant, comprising the following steps:
[0039] S1. Build a screening and preparation system, which includes a data input module, a data identification module, a process matching module, an execution module, a monitoring module, a performance detection module, a comparison module, an early warning module, a data extraction module, a report generation module, a printing module, a threshold setting module, a process setting module, a process storage module and a display module;
[0040] S2. First, input different types of catalysts through the process setting module, then associate the corresponding preparation processes with the different types of catalysts, and store the associated preparation processes through the process storage module;
[0041] S3, input the name of the catalyst to be prepared through the data input module, identify the catalyst type through the data identification module, match the preparation process corresponding to the catalyst of the same type from the process storage module through the process matching module, execute the matched preparation process through the execution module, and prepare the required catalyst;
[0042] S4. The preparation process is monitored through the monitoring module, the display module displays the monitoring information, the performance data of the prepared catalyst is detected through the performance detection module, the detected data is compared with the threshold value through the comparison module, and when the detected data does not meet the requirements, an early warning is issued through the early warning module.
[0043] In this embodiment, the data extraction module is used to extract abnormal data, generate a detection report through the report generation module, print out the report through the printing module, and set the performance detection comparison threshold through the threshold setting module.
[0044] In this embodiment, the performance detection module includes a catalytic activity detection unit, a heat resistance detection unit, a toxicity resistance detection unit and a mechanical strength detection unit.
[0045] In this embodiment, the catalytic activity detection unit obtains an XRD spectrum of the catalyst through an XRD test, and compares the diffraction intensity of the characteristic peak with the standard diffraction intensity in the standard XRD spectrum to evaluate the catalytic activity.
[0046] In this embodiment, the working process of the heat resistance detection unit is as follows: loading catalyst: prepare the catalyst and load it into the reaction tube to ensure that the catalyst is in the correct position and the loading amount is appropriate; install the inner pressure ring, O-ring, thermocouple sleeve and pressure cap in sequence to ensure good sealing; catalyst reduction: open the catalyst evaluation device, set the gas flow rate, purge the gas path, heat up to the specified temperature, reduce the catalyst, and turn off the relevant equipment after the reduction is completed; heat resistance test: set the temperature of the vaporizer, reactor, thermostat and other equipment to ensure that the temperature meets the test requirements. After the reaction starts, continuously observe the performance changes of the catalyst at high temperature, record relevant data, evaluate the heat resistance of the catalyst based on the data, and judge whether it meets the use requirements.
[0047] In this embodiment, the anti-toxicity detection unit determines the anti-viral activity of the catalyst by counting the reduction in the amount of Q-β bacteriophage after ultraviolet light or indoor light.
[0048] In this embodiment, the mechanical strength detection unit includes strength tests, which are as follows: single particle strength test: single particle crushing strength: the catalyst particles are placed between two platforms, and a load is evenly applied until the particles are broken, and the applied load is recorded; blade cutting strength: the catalyst particles are placed under the blade and a load is applied until the particles are cut, and the strength is expressed by the ratio of the applied load at the time of cutting to the cross-sectional area of the particles;
[0049] Overall stacking crushing strength: For fixed bed catalysts, the strength of a single particle cannot directly reflect the overall crushing situation in the bed, so the overall stacking crushing strength test method is used;
[0050] Wear strength test: Rotational collision method: Applicable to fixed bed catalysts, the wear resistance is tested by rolling wear of the catalyst in a rotating container;
[0051] High-speed air jet method: Applicable to fluidized bed catalysts, the wear strength of the catalyst is tested by high-speed air jet.
[0052] In this embodiment, the process matching module includes a data receiving unit, an adaptation process matching unit, a process extraction unit and an output unit. The data receiving unit is connected to the adaptation process matching unit, the adaptation process matching unit is connected to the process extraction unit, and the process extraction unit is connected to the output unit.
[0053] In this embodiment, the process storage module includes an impregnation process unit, a precipitation process unit, a mixing process unit and an ion exchange process unit.
[0054] In this embodiment, the comparison module includes a detection data identification unit, and the detection data identification unit is connected to a catalytic activity comparison unit, a heat resistance comparison unit, an anti-toxicity comparison unit and a mechanical strength comparison unit.
[0055] In this embodiment, the steps of preparing the catalyst by impregnation process are as follows:
[0056] Carrier pretreatment: Select a suitable carrier (such as alumina, silica gel, etc.) and perform pretreatment, such as calcination, acidification, etc., to improve its surface properties and structure.
[0057] Preparation of impregnation solution: prepare a soluble compound solution containing active components (main and co-catalyst components).
[0058] Impregnation: Soak the pretreated carrier in the impregnation solution so that the active components are gradually adsorbed on the surface of the carrier and penetrate into the interior of the carrier.
[0059] Removal of excess liquid: After the impregnation is balanced, the remaining impregnation liquid is removed.
[0060] Drying: Dry the impregnated carrier to remove moisture.
[0061] Calcination: Calcination is carried out at high temperature to fix the active components on the carrier and form the desired catalyst structure.
[0062] Activation (reduction): The calcined catalyst is activated, such as by hydrogen reduction, to improve its catalytic activity.
[0063] Embodiment 2
[0064] A screening and preparation process for a catalyst for preparing a refrigerant comprises the following steps:
[0065] S1. Build a screening and preparation system, which includes a data input module, a data identification module, a process matching module, an execution module, a monitoring module, a performance detection module, a comparison module, an early warning module, a data extraction module, a report generation module, a printing module, a threshold setting module, a process setting module, a process storage module and a display module;
[0066] S2. First, input different types of catalysts through the process setting module, then associate the corresponding preparation processes with the different types of catalysts, and store the associated preparation processes through the process storage module;
[0067] S3, input the name of the catalyst to be prepared through the data input module, identify the catalyst type through the data identification module, match the preparation process corresponding to the catalyst of the same type from the process storage module through the process matching module, execute the matched preparation process through the execution module, and prepare the required catalyst;
[0068] S4. The preparation process is monitored through the monitoring module, the display module displays the monitoring information, the performance data of the prepared catalyst is detected through the performance detection module, the detected data is compared with the threshold value through the comparison module, and when the detected data does not meet the requirements, an early warning is issued through the early warning module.
[0069] In this embodiment, the data extraction module is used to extract abnormal data, generate a detection report through the report generation module, print out the report through the printing module, and set the performance detection comparison threshold through the threshold setting module.
[0070] In this embodiment, the performance detection module includes a catalytic activity detection unit, a heat resistance detection unit, a toxicity resistance detection unit and a mechanical strength detection unit.
[0071] In this embodiment, the catalytic activity detection unit obtains an XRD spectrum of the catalyst through an XRD test, and compares the diffraction intensity of the characteristic peak with the standard diffraction intensity in the standard XRD spectrum to evaluate the catalytic activity.
[0072] In this embodiment, the working process of the heat resistance detection unit is as follows: loading catalyst: prepare the catalyst and load it into the reaction tube to ensure that the catalyst is in the correct position and the loading amount is appropriate; install the inner pressure ring, O-ring, thermocouple sleeve and pressure cap in sequence to ensure good sealing; catalyst reduction: open the catalyst evaluation device, set the gas flow rate, purge the gas path, heat up to the specified temperature, reduce the catalyst, and turn off the relevant equipment after the reduction is completed; heat resistance test: set the temperature of the vaporizer, reactor, thermostat and other equipment to ensure that the temperature meets the test requirements. After the reaction starts, continuously observe the performance changes of the catalyst at high temperature, record relevant data, evaluate the heat resistance of the catalyst based on the data, and judge whether it meets the use requirements.
[0073] In this embodiment, the anti-toxicity detection unit determines the anti-viral activity of the catalyst by counting the reduction in the amount of Q-β bacteriophage after ultraviolet light or indoor light.
[0074] In this embodiment, the mechanical strength detection unit includes strength tests, which are as follows: single particle strength test: single particle crushing strength: the catalyst particles are placed between two platforms, and a load is evenly applied until the particles are broken, and the applied load is recorded; blade cutting strength: the catalyst particles are placed under the blade and a load is applied until the particles are cut, and the strength is expressed by the ratio of the applied load at the time of cutting to the cross-sectional area of the particles;
[0075] Overall stacking crushing strength: For fixed bed catalysts, the strength of a single particle cannot directly reflect the overall crushing situation in the bed, so the overall stacking crushing strength test method is used;
[0076] Wear strength test: Rotational collision method: Applicable to fixed bed catalysts, the wear resistance is tested by rolling wear of the catalyst in a rotating container;
[0077] High-speed air jet method: Applicable to fluidized bed catalysts, the wear strength of the catalyst is tested by high-speed air jet.
[0078] In this embodiment, the process matching module includes a data receiving unit, an adaptation process matching unit, a process extraction unit and an output unit. The data receiving unit is connected to the adaptation process matching unit, the adaptation process matching unit is connected to the process extraction unit, and the process extraction unit is connected to the output unit.
[0079] In this embodiment, the process storage module includes an impregnation process unit, a precipitation process unit, a mixing process unit and an ion exchange process unit.
[0080] In this embodiment, the comparison module includes a detection data identification unit, and the detection data identification unit is connected to a catalytic activity comparison unit, a heat resistance comparison unit, an anti-toxicity comparison unit and a mechanical strength comparison unit.
[0081] In this embodiment, the steps of preparing the catalyst by the sampling precipitation process are as follows:
[0082] Precipitation reaction: Add a precipitant (such as an alkali substance) to an aqueous solution containing metal salts to convert the soluble catalyst components into insoluble compounds.
[0083] Separation and washing: The generated precipitate is separated and impurities are removed by washing.
[0084] Drying and calcination: The washed precipitate is dried to remove moisture; it is calcined at a high temperature to convert the precipitate into the desired catalyst structure.
[0085] Molding and activation: The calcined catalyst is molded to obtain the desired shape and size; activation treatment is performed as needed, such as hydrogen reduction, to improve the activity of the catalyst.
[0086] Embodiment 3
[0087] A screening and preparation process for a catalyst for preparing a refrigerant comprises the following steps:
[0088] S1. Build a screening and preparation system, which includes a data input module, a data identification module, a process matching module, an execution module, a monitoring module, a performance detection module, a comparison module, an early warning module, a data extraction module, a report generation module, a printing module, a threshold setting module, a process setting module, a process storage module and a display module;
[0089] S2. First, input different types of catalysts through the process setting module, then associate the corresponding preparation processes with the different types of catalysts, and store the associated preparation processes through the process storage module;
[0090] S3, input the name of the catalyst to be prepared through the data input module, identify the catalyst type through the data identification module, match the preparation process corresponding to the catalyst of the same type from the process storage module through the process matching module, execute the matched preparation process through the execution module, and prepare the required catalyst;
[0091] S4. The preparation process is monitored through the monitoring module, the display module displays the monitoring information, the performance data of the prepared catalyst is detected through the performance detection module, the detected data is compared with the threshold value through the comparison module, and when the detected data does not meet the requirements, an early warning is issued through the early warning module.
[0092] In this embodiment, the data extraction module is used to extract abnormal data, generate a detection report through the report generation module, print out the report through the printing module, and set the performance detection comparison threshold through the threshold setting module.
[0093] In this embodiment, the performance detection module includes a catalytic activity detection unit, a heat resistance detection unit, a toxicity resistance detection unit and a mechanical strength detection unit.
[0094] In this embodiment, the catalytic activity detection unit obtains an XRD spectrum of the catalyst through an XRD test, and compares the diffraction intensity of the characteristic peak with the standard diffraction intensity in the standard XRD spectrum to evaluate the catalytic activity.
[0095] In this embodiment, the working process of the heat resistance detection unit is as follows: loading catalyst: prepare the catalyst and load it into the reaction tube to ensure that the catalyst is in the correct position and the loading amount is appropriate; install the inner pressure ring, O-ring, thermocouple sleeve and pressure cap in sequence to ensure good sealing; catalyst reduction: open the catalyst evaluation device, set the gas flow rate, purge the gas path, heat up to the specified temperature, reduce the catalyst, and turn off the relevant equipment after the reduction is completed; heat resistance test: set the temperature of the vaporizer, reactor, thermostat and other equipment to ensure that the temperature meets the test requirements. After the reaction starts, continuously observe the performance changes of the catalyst at high temperature, record relevant data, evaluate the heat resistance of the catalyst based on the data, and judge whether it meets the use requirements.
[0096] In this embodiment, the anti-toxicity detection unit determines the anti-viral activity of the catalyst by counting the reduction in the amount of Q-β bacteriophage after ultraviolet light or indoor light.
[0097] In this embodiment, the mechanical strength detection unit includes strength tests, which are as follows: single particle strength test: single particle crushing strength: the catalyst particles are placed between two platforms, and a load is evenly applied until the particles are broken, and the applied load is recorded; blade cutting strength: the catalyst particles are placed under the blade and a load is applied until the particles are cut, and the strength is expressed by the ratio of the applied load at the time of cutting to the cross-sectional area of the particles;
[0098] Overall stacking crushing strength: For fixed bed catalysts, the strength of a single particle cannot directly reflect the overall crushing situation in the bed, so the overall stacking crushing strength test method is used;
[0099] Wear strength test: Rotational collision method: Applicable to fixed bed catalysts, the wear resistance is tested by rolling wear of the catalyst in a rotating container;
[0100] High-speed air jet method: Applicable to fluidized bed catalysts, the wear strength of the catalyst is tested by high-speed air jet.
[0101] In this embodiment, the process matching module includes a data receiving unit, an adaptation process matching unit, a process extraction unit and an output unit. The data receiving unit is connected to the adaptation process matching unit, the adaptation process matching unit is connected to the process extraction unit, and the process extraction unit is connected to the output unit.
[0102] In this embodiment, the process storage module includes an impregnation process unit, a precipitation process unit, a mixing process unit and an ion exchange process unit.
[0103] In this embodiment, the comparison module includes a detection data identification unit, and the detection data identification unit is connected to a catalytic activity comparison unit, a heat resistance comparison unit, an anti-toxicity comparison unit and a mechanical strength comparison unit.
[0104] In this embodiment, the steps of preparing the catalyst by mixing process are as follows:
[0105] Select raw materials: Select appropriate metal salts, carriers and other raw materials based on the type and properties of the required catalyst.
[0106] Mixing raw materials: Mix the selected metal salt solution with the carrier or other additives to ensure uniform distribution of the components.
[0107] Processing of mixture: Perform necessary processing on the mixed materials, such as heating, stirring, etc., to promote reaction and uniform distribution.
[0108] Drying and calcination: The treated mixture is dried to remove excess water; it is then calcined at a high temperature to convert the mixture into the desired catalyst structure.
[0109] Activation and molding: The calcined catalyst is activated as needed, such as hydrogen reduction, etc. At the same time, molding can be performed to obtain the desired shape and size.
[0110] Embodiment 4
[0111] A screening and preparation process for a catalyst for preparing a refrigerant comprises the following steps:
[0112] S1. Build a screening and preparation system, which includes a data input module, a data identification module, a process matching module, an execution module, a monitoring module, a performance detection module, a comparison module, an early warning module, a data extraction module, a report generation module, a printing module, a threshold setting module, a process setting module, a process storage module and a display module;
[0113] S2. First, input different types of catalysts through the process setting module, then associate the corresponding preparation processes with the different types of catalysts, and store the associated preparation processes through the process storage module;
[0114] S3, input the name of the catalyst to be prepared through the data input module, identify the catalyst type through the data identification module, match the preparation process corresponding to the catalyst of the same type from the process storage module through the process matching module, execute the matched preparation process through the execution module, and prepare the required catalyst;
[0115] S4. The preparation process is monitored through the monitoring module, the display module displays the monitoring information, the performance data of the prepared catalyst is detected through the performance detection module, the detected data is compared with the threshold value through the comparison module, and when the detected data does not meet the requirements, an early warning is issued through the early warning module.
[0116] In this embodiment, the data extraction module is used to extract abnormal data, generate a detection report through the report generation module, print out the report through the printing module, and set the performance detection comparison threshold through the threshold setting module.
[0117] In this embodiment, the performance detection module includes a catalytic activity detection unit, a heat resistance detection unit, a toxicity resistance detection unit and a mechanical strength detection unit.
[0118] In this embodiment, the catalytic activity detection unit obtains an XRD spectrum of the catalyst through an XRD test, and compares the diffraction intensity of the characteristic peak with the standard diffraction intensity in the standard XRD spectrum to evaluate the catalytic activity.
[0119] In this embodiment, the working process of the heat resistance detection unit is as follows: loading catalyst: prepare the catalyst and load it into the reaction tube to ensure that the catalyst is in the correct position and the loading amount is appropriate; install the inner pressure ring, O-ring, thermocouple sleeve and pressure cap in sequence to ensure good sealing; catalyst reduction: open the catalyst evaluation device, set the gas flow rate, purge the gas path, heat up to the specified temperature, reduce the catalyst, and turn off the relevant equipment after the reduction is completed; heat resistance test: set the temperature of the vaporizer, reactor, thermostat and other equipment to ensure that the temperature meets the test requirements. After the reaction starts, continuously observe the performance changes of the catalyst at high temperature, record relevant data, evaluate the heat resistance of the catalyst based on the data, and judge whether it meets the use requirements.
[0120] In this embodiment, the anti-toxicity detection unit determines the anti-viral activity of the catalyst by counting the reduction in the amount of Q-β bacteriophage after ultraviolet light or indoor light.
[0121] In this embodiment, the mechanical strength detection unit includes strength tests, which are as follows: single particle strength test: single particle crushing strength: the catalyst particles are placed between two platforms, and a load is evenly applied until the particles are broken, and the applied load is recorded; blade cutting strength: the catalyst particles are placed under the blade and a load is applied until the particles are cut, and the strength is expressed by the ratio of the applied load at the time of cutting to the cross-sectional area of the particles;
[0122] Overall stacking crushing strength: For fixed bed catalysts, the strength of a single particle cannot directly reflect the overall crushing situation in the bed, so the overall stacking crushing strength test method is used;
[0123] Wear strength test: Rotational collision method: Applicable to fixed bed catalysts, the wear resistance is tested by rolling wear of the catalyst in a rotating container;
[0124] High-speed air jet method: Applicable to fluidized bed catalysts, the wear strength of the catalyst is tested by high-speed air jet.
[0125] In this embodiment, the process matching module includes a data receiving unit, an adaptation process matching unit, a process extraction unit and an output unit. The data receiving unit is connected to the adaptation process matching unit, the adaptation process matching unit is connected to the process extraction unit, and the process extraction unit is connected to the output unit.
[0126] In this embodiment, the process storage module includes an impregnation process unit, a precipitation process unit, a mixing process unit and an ion exchange process unit.
[0127] In this embodiment, the comparison module includes a detection data identification unit, and the detection data identification unit is connected to a catalytic activity comparison unit, a heat resistance comparison unit, an anti-toxicity comparison unit and a mechanical strength comparison unit.
[0128] In this embodiment, the steps of preparing the catalyst by using the ion exchange process are as follows: Selecting a carrier and an active component: Selecting a suitable ion exchanger as a carrier and determining the active component.
[0129] Ion exchange process: Adsorption: The active components are adsorbed onto the carrier in the form of cations by means of ion exchange. This process occurs on the fixed and limited exchange groups on the surface of the exchanger and is a stoichiometric, reversible and mild process1.
[0130] Control conditions: Ensure that the exchange reaction proceeds sufficiently to achieve the required active component loading.
[0131] Subsequent treatment: The catalyst may be dried, calcined or subjected to other subsequent treatments as required to stabilize the catalyst structure.
[0132] Performance evaluation: Evaluate the performance of the prepared catalyst to ensure that it meets the requirements for use.
[0133] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A screening and preparation process for a catalyst for preparing a refrigerant, characterized in that: The following steps are involved: S1. Build a screening and preparation system, which includes a data input module, a data identification module, a process matching module, an execution module, a monitoring module, a performance detection module, a comparison module, an early warning module, a data extraction module, a report generation module, a printing module, a threshold setting module, a process setting module, a process storage module and a display module; S2. First, input different types of catalysts through the process setting module, then associate the corresponding preparation processes with the different types of catalysts, and store the associated preparation processes through the process storage module; S3, input the name of the catalyst to be prepared through the data input module, identify the catalyst type through the data identification module, match the preparation process corresponding to the catalyst of the same type from the process storage module through the process matching module, execute the matched preparation process through the execution module, and prepare the required catalyst; S4. The preparation process is monitored through the monitoring module, the display module displays the monitoring information, the performance data of the prepared catalyst is detected through the performance detection module, the detected data is compared with the threshold value through the comparison module, and when the detected data does not meet the requirements, an early warning is issued through the early warning module.
2. The screening and preparation process of a catalyst for preparing a refrigerant according to claim 1, characterized in that: The data extraction module is used to extract abnormal data, generate a test report through the report generation module, print out the report through the printing module, and set a performance test comparison threshold through the threshold setting module.
3. The screening and preparation process of a catalyst for preparing a refrigerant according to claim 2, characterized in that: The performance detection module includes a catalytic activity detection unit, a heat resistance detection unit, a toxicity resistance detection unit and a mechanical strength detection unit.
4. The screening and preparation process of a catalyst for preparing a refrigerant according to claim 3, characterized in that: The catalytic activity detection unit obtains an XRD spectrum of the catalyst through an XRD test, and compares the diffraction intensity of the characteristic peak with the standard diffraction intensity in the standard XRD spectrum to evaluate the catalytic activity.
5. The screening and preparation process of a catalyst for preparing a refrigerant according to claim 4, characterized in that: The working process of the heat resistance detection unit is as follows: loading catalyst: prepare the catalyst and load it into the reaction tube to ensure that the catalyst is in the correct position and the loading amount is appropriate; install the inner pressure ring, O-ring, thermocouple sleeve and pressure cap in sequence to ensure good sealing; catalyst reduction: open the catalyst evaluation device, set the gas flow rate, purge the gas path, heat up to the specified temperature, reduce the catalyst, and turn off the relevant equipment after the reduction is completed; heat resistance test: set the temperature of the vaporizer, reactor, thermostat and other equipment to ensure that the temperature meets the test requirements. After the reaction starts, continue to observe the performance changes of the catalyst at high temperature, record relevant data, evaluate the heat resistance of the catalyst based on the data, and judge whether it meets the use requirements.
6. The screening and preparation process of a catalyst for preparing a refrigerant according to claim 5, characterized in that: The anti-toxicity detection unit determines the anti-viral activity of the catalyst by counting the reduction of Q-β bacteriophage after ultraviolet light or indoor light.
7. The screening and preparation process of a catalyst for preparing a refrigerant according to claim 6, characterized in that: The mechanical strength testing unit includes strength tests, specifically as follows: Single particle strength test: Single particle crushing strength: Place the catalyst particles between two platforms, apply load evenly until the particles are broken, and record the applied load; Knife edge shear strength: Put the catalyst particles under the blade and apply load until the particles are cut, and the strength is expressed by the ratio of the applied load at the time of cutting to the cross-sectional area of the particles; Overall stacking crushing strength: For fixed bed catalysts, the strength of a single particle cannot directly reflect the overall crushing situation in the bed, so the overall stacking crushing strength test method is used; Wear strength test: Rotational collision method: Applicable to fixed bed catalysts, the wear resistance is tested by rolling wear of the catalyst in a rotating container; High-speed air jet method: Applicable to fluidized bed catalysts, the wear strength of the catalyst is tested by high-speed air jet.
8. The screening and preparation process of a catalyst for preparing a refrigerant according to claim 7, characterized in that: The process matching module includes a data receiving unit, an adaptation process matching unit, a process extraction unit and an output unit. The data receiving unit is connected to the adaptation process matching unit, the adaptation process matching unit is connected to the process extraction unit, and the process extraction unit is connected to the output unit.
9. The screening and preparation process of a catalyst for preparing a refrigerant according to claim 8, characterized in that: The process storage module includes an impregnation process unit, a precipitation process unit, a mixing process unit and an ion exchange process unit.
10. The screening and preparation process of a catalyst for preparing a refrigerant according to claim 9, characterized in that: The comparison module comprises a detection data identification unit, and the detection data identification unit is connected to a catalytic activity comparison unit, a heat resistance comparison unit, an anti-toxicity comparison unit and a mechanical strength comparison unit.