Hydrogen purification control method and hydrogen purification control system

Abstract

The embodiment of the present application is applicable to the field of petrochemical technology, and provides a hydrogen purification control method and a hydrogen purification control system, the method comprising: obtaining gas component information of a hydrogen-rich gas stream to be purified; determining the adsorption order of various gases in the hydrogen-rich gas stream according to the gas component information; generating configuration information of a plurality of adsorbents required for each adsorber in the hydrogen purification control system based on the adsorption order, wherein the configuration information of the various adsorbents in any adsorber is not exactly the same; controlling the adsorbent adding device of the hydrogen purification control system to add a plurality of adsorbents to each adsorber according to the configuration information; and controlling each adsorber to which a plurality of adsorbents are added to purify hydrogen from the hydrogen-rich gas stream. By applying the above method, different adsorbent configuration methods can be used to purify hydrogen according to the gas components of the hydrogen-rich gas stream, which helps to reduce process costs.

Description

Technical Field

[0001] The embodiments of the present application belong to the field of petrochemical technology, and in particular relate to a hydrogen purification control method and a hydrogen purification control system. Background Art

[0002] Pressure swing adsorption (PSA) is a novel gas separation technology that separates gas mixtures by exploiting the differences in the adsorption properties of adsorbents for different gas molecules. For example, PSA can be used to recover or purify hydrogen from hydrogen-rich streams. Under varying operating conditions, hydrogen can be produced at varying purities, reaching purity levels exceeding 99.999%.

[0003] When pressure swing adsorption technology is used in existing technologies to recover or purify hydrogen from hydrogen-rich gas streams, a hydrogen extraction system is typically composed of multiple adsorbers and ancillary equipment. Each adsorber uses multiple adsorption control processes to absorb impurities in the feed gas and output hydrogen with a purity that meets the corresponding process requirements. Due to the wide range of sources for feed gas, the composition and content of various impurities in the gas vary greatly. To meet the purity requirements of subsequent processes, the hydrogen extraction system often requires the use of multiple adsorbers. For example, the hydrogen extraction systems in petrochemical enterprises often include dozens of adsorbers, and the adsorbents and adsorption methods configured for these dozens of adsorbers are essentially the same. Using such a large number of adsorbers to purify hydrogen is extremely costly. Summary of the Invention

[0004] In view of this, embodiments of the present application provide a hydrogen purification control method and a hydrogen purification control system to reduce the process cost of hydrogen purification.

[0005] A first aspect of an embodiment of the present application provides a hydrogen purification control method, which is applied to a hydrogen purification control system. The method includes:

[0006] Obtaining gas component information of the hydrogen-rich gas stream to be purified;

[0007] determining the adsorption order of various gases in the hydrogen-rich gas stream according to the gas component information;

[0008] generating configuration information of a plurality of adsorbents required for each adsorber in the hydrogen purification control system based on the adsorption sequence, wherein the configuration information of the various adsorbents in any adsorber is not completely the same;

[0009] According to the configuration information, controlling the adsorbent adding device of the hydrogen purification control system to add a plurality of the adsorbents into each of the adsorbers;

[0010] The adsorbers to which the plurality of adsorbents are added are controlled to purify the hydrogen-rich gas stream.

[0011] A second aspect of the embodiments of the present application provides a hydrogen purification control device, which is applied to a hydrogen purification control system. The device includes:

[0012] an acquisition module, used for acquiring gas component information of the hydrogen-rich gas stream to be purified;

[0013] a determination module, configured to determine the adsorption order of various gases in the hydrogen-rich gas flow according to the gas component information;

[0014] a generating module for generating, based on the adsorption sequence, configuration information of a plurality of adsorbents required for each adsorber in the hydrogen purification control system, wherein the configuration information of the various adsorbents in any adsorber is not completely the same;

[0015] an adding module, configured to control the adsorbent adding device of the hydrogen purification control system to add a plurality of adsorbents into each of the adsorbers according to the configuration information;

[0016] The purification module is used to control each of the adsorbers added with a plurality of the adsorbents to purify the hydrogen from the hydrogen-rich gas stream.

[0017] A third aspect of an embodiment of the present application provides a hydrogen purification control system, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the hydrogen purification control method as described in the first aspect above is implemented.

[0018] A fourth aspect of an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the hydrogen purification control method as described in the first aspect above is implemented.

[0019] A fifth aspect of the embodiments of the present application provides a computer program product, which, when executed on a computer, enables the computer to execute the hydrogen purification control method described in the first aspect.

[0020] Compared with the prior art, the embodiments of the present application have the following advantages:

[0021] By applying the method provided in the embodiment of the present application, the hydrogen purification control system can obtain the gas component information of the hydrogen-rich gas flow to be purified, and can determine the adsorption order of various gases in the hydrogen-rich gas flow according to the above gas component information. Then, based on different adsorption orders, the hydrogen purification control system can generate configuration information of multiple adsorbents required for each adsorber. Among them, the configuration information of various adsorbents in any adsorber is not exactly the same. The hydrogen purification control system can control the adsorbent adding device to add multiple adsorbents to each adsorber according to the above configuration information, so that after the hydrogen-rich gas flow is input, the hydrogen-rich gas flow is purified by hydrogen. By applying the method provided in the embodiment of the present application, different adsorbents can be added to different adsorbers, so as to control each adsorber to be mainly used to adsorb different gases, thereby solving the problem in the prior art that a large number of adsorbers are required because the adsorbents added to each adsorber are the same and the function of each adsorber is the same. The application of this method can significantly reduce the process cost of hydrogen purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0023] Figure 1 Schematic diagram of a hydrogen purification control method provided in an embodiment of the present application;

[0024] Figure 2 Schematic diagram of an implementation of S102 in a hydrogen purification control method provided in an embodiment of the present application;

[0025] Figure 3 This is a schematic diagram of an implementation of S1024 in a hydrogen purification control method provided in an embodiment of the present application;

[0026] Figure 4 Schematic diagram of an implementation of S103 in a hydrogen purification control method provided in an embodiment of the present application;

[0027] Figure 5 Schematic diagram of an implementation of S1032 in a hydrogen purification control method provided in an embodiment of the present application;

[0028] Figure 6 Schematic diagram of a hydrogen purification control device provided in an embodiment of the present application;

[0029] Figure 7 This is a schematic diagram of a hydrogen purification control system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obstructing the description of the present application with unnecessary details.

[0031] The technical solution of this application is described below through specific embodiments.

[0032] Reference Figure 1 , shows a schematic diagram of a hydrogen purification control method provided in an embodiment of the present application, which may specifically include the following steps:

[0033] S101. Obtain gas component information of a hydrogen-rich gas stream to be purified.

[0034] It should be noted that this method can be applied to a hydrogen purification control system, which may include at least one gas inlet and at least one gas outlet, as well as multiple adsorbers and associated equipment located between the inlet and outlet. This control system can process gases from various sources to produce hydrogen meeting specific purity requirements. These purity requirements can be determined based on actual needs. For example, this control system can purify a hydrogen-rich gas stream to produce hydrogen with a purity of up to 99.999%.

[0035] The hydrogen-rich gas flow in the embodiment of the present application can be a hydrogen-rich gas input into the hydrogen purification control system in the form of gas, and the hydrogen-rich gas is a mixed gas with a high hydrogen content. For example, in a certain type of hydrogen-rich gas, the content of hydrogen accounts for 47.97% of the mixed gas. In addition to hydrogen, it can also include various types of other gases. For example, nitrogen, carbon monoxide gas, carbon dioxide gas, water vapor, etc. Generally, in a hydrogen-rich gas flow, the proportion of the content of any other type of gas in the mixed gas is generally less than the proportion of hydrogen.

[0036] In the embodiments of the present application, obtaining gas composition information of the hydrogen-rich gas stream to be purified may refer to determining the components of various gases included in the hydrogen-rich gas stream to be purified, as well as the content of each type of gas. The gas composition information of the hydrogen-rich gas stream may be obtained by sampling and testing the hydrogen-rich gas stream to be purified. Table 1 shows an example of gas composition information of the hydrogen-rich gas stream to be purified.

[0037] Table 1:

[0038] Gas composition Gas content (V%) <![CDATA[H2]]> 47.97 <![CDATA[N2]]> 3.21 <![CDATA[C1]]> 22.04 <![CDATA[C2]]> 13.93 <![CDATA[C3]]> 7.27 <![CDATA[C4]]> 3.31 <![CDATA[C5+]]> 1.55 CO 0.42 <![CDATA[CO2]]> 0.01 <![CDATA[H2O]]> 0.30 total 100.00

[0039] The gas composition information shown in Table 1 above is for reformed gas, a common hydrogen-rich gas used for hydrogen purification. In addition to reformed gas, the hydrogen purification control system provided in this embodiment can also be used to purify other types of hydrogen-rich gases, such as shift gas, refinery gas, and natural gas. This embodiment does not limit the source of the hydrogen-rich gas.

[0040] S102: Determine the adsorption order of various gases in the hydrogen-rich gas flow according to the gas component information.

[0041] During hydrogen purification, gases other than hydrogen are considered impurities. The gas output from the hydrogen purification control system's outlet must meet the required purity. Therefore, the hydrogen purification process involves using the various adsorbers in the control system to absorb impurities from the hydrogen-rich gas stream.

[0042] In existing technology, each adsorber is equipped with essentially the same adsorbent. Each adsorber simultaneously adsorbs various impurity gases. Through the circulation of multiple adsorbers, higher-purity hydrogen can be output. However, this approach requires each adsorber to be equipped with the same adsorbent, which can easily lead to adsorbent waste.

[0043] To address the above issues, the present embodiment can incorporate different adsorbents in different adsorbers to specifically adsorb various impurity gases. To achieve this, the present embodiment first needs to determine the adsorption order of various gases other than hydrogen. This adsorption order can represent the order in which each gas is adsorbed.

[0044] In the embodiment of the present application, the adsorption order of various gases can be determined based on the gas component information of the hydrogen-rich gas flow obtained by detection.

[0045] In one example, the gas with the highest content can be adsorbed first, such as the C1 gas shown in Table 1, and then the other gases can be adsorbed in descending order of content. In this case, the order of adsorption of each gas can be determined from highest to lowest based on their respective proportions in the mixed gas.

[0046] In another example, the gas with a lower content can be adsorbed first, for example, the CO2 gas shown in Table 1, and then the other gases can be adsorbed in order of increasing content. In this case, the order of adsorption of each gas can be determined from the lowest to the highest content based on the proportion of each gas in the mixed gas.

[0047] In a possible implementation of the embodiment of the present application, as Figure 2As shown, in S102, determining the adsorption order of various gases in the hydrogen-rich gas flow according to the gas component information may specifically include the following steps S1021-S1024:

[0048] S1021. Determine the contents of various gases except hydrogen based on the gas component information.

[0049] As an example of an embodiment of the present application, the contents of various gases other than hydrogen in the hydrogen-rich gas flow can be shown in Table 1.

[0050] S1022. Group the various gases according to the contents, and any gas group contains no more than a preset number of gas types.

[0051] In the embodiment of the present application, each gas type can be grouped according to its content. In this way, when multiple adsorbers in the control system are used to adsorb impurity gases, each adsorber can be mainly used to adsorb gases in one group.

[0052] In a specific implementation, when grouping gases, the number of gas types contained in each gas group should not exceed a preset number, which can be determined based on the number of adsorbers in the control system. For example, if the number of available adsorbers in the control system is N, then when grouping gases, the number of gas types in each gas group after grouping can be considered to be N-1. For example, if there are four available adsorbers in the control system, the gases can be grouped so that each gas group contains no more than three gas types.

[0053] When grouping, each type of gas can be divided into gas groups in order from the highest to the lowest gas content. As an example of an embodiment of the present application, taking the gas components shown in Table 1 and each gas group containing 3 gases as an example, when grouping, the gas with the highest gas content, i.e., C1 gas, can be first divided into gas group 1, and then the gases with the second and third highest gas contents, i.e., C2 gas and C3 gas, can also be divided into gas group 1; the gases ranked 4th to 6th in gas content can be divided into gas group 2, and the gases ranked 7th to 9th in gas content can be divided into gas group 3. Therefore, an example of gas groups can be obtained as shown below.

[0054] Gas group 1: C1, C2, C3;

[0055] Gas group 2: C4, N2, C5+;

[0056] Gas group three: CO, H2O, CO2.

[0057] The gases in the above gas groups are arranged in descending order of content.

[0058] S1023. Select a type of gas from each gas group to form a plurality of adsorption groups.

[0059] Since the gases within each gas group are grouped in order of adjacent adsorption volumes, to ensure a relatively balanced gas content across the resulting adsorption groups, a gas type can be selected from each gas group to form multiple adsorption groups. The number of adsorption groups can be determined based on the number of adsorbers, ensuring that each adsorber is primarily dedicated to adsorbing gases from a single adsorption group. For example, if there are N adsorbers, N-1 adsorption groups can be generated. In this way, the first N-1 adsorbers can be used to adsorb gases from each of the N-1 adsorption groups, and the last adsorber can then be used for further adsorption.

[0060] For example, the most abundant gas in gas group 1, namely C1 gas, and the least abundant gas in gas group 3, namely CO2 gas, can be assigned to adsorption group 1. Then, a type of gas from gas group 2 can be selected and assigned to adsorption group 1. For example, C5+ gas can be assigned to adsorption group 1. Adsorption group 2 can include C2 gas, N2 gas, and H2O gas; adsorption group 3 can include C3 gas, C4 gas, and CO gas.

[0061] Right now:

[0062] Adsorption group 1: C1, C5+, CO2;

[0063] Adsorption group 2: C2, N2, H2O;

[0064] Adsorption group 3: C3, C4, CO.

[0065] S1024. Determine the adsorption order of each type of gas based on the multiple adsorption groups.

[0066] In a possible implementation of the embodiment of the present application, as Figure 3 As shown, in S1024, determining the adsorption order of various gases based on multiple adsorption groups may specifically include the following steps S1241-S1243:

[0067] S1241. Determine the gas with the highest content in each of the adsorption groups.

[0068] For example, the gas with the largest content in adsorption group 1 is C1 gas; the gas with the largest content in adsorption group 2 is C2 gas; and the gas with the largest content in adsorption group 3 is C3 gas.

[0069] S1242. Determine the adsorption order of the gas with the largest content in each of the adsorption groups; wherein the adsorption order of the gas with the largest content in each of the adsorption groups is the same as the order of the gas content from most to least.

[0070] For example, the adsorption order of C1 gas is 1st; the adsorption order of C2 gas is 2nd; and the adsorption order of C3 gas is 3rd.

[0071] S1243. Determine the adsorption order of other gases in each adsorption group according to the adsorption order of the gas with the largest content in each adsorption group; wherein the adsorption order of each gas belonging to the same adsorption group is the same.

[0072] For example, the gas in the first position in the adsorption order is also the various gases in adsorption group 1, namely C1, C5+, and CO2 gases; the gas in the second position in the adsorption order is also the various gases in adsorption group 2, namely C2, N2, and H2O gases; the gas in the third position in the adsorption order is also the various gases in adsorption group 3, namely C3, C4, and CO gases.

[0073] By placing multiple gases with different contents in the same adsorption order, it is possible to adsorb gases with relatively low contents while using a certain adsorber to adsorb gases with higher contents, which helps to improve the adsorption efficiency and speed up the hydrogen purification process.

[0074] S103. Based on the adsorption sequence, generate configuration information of multiple adsorbents required for each adsorber in the hydrogen purification control system, wherein the configuration information of the various adsorbents in any adsorber is not completely the same.

[0075] In this embodiment of the present application, configuration information can be generated for each adsorber in the control system based on the determined adsorption sequence. This configuration information can be guidance information on how to add adsorbents to each adsorber. For example, the configuration information can include information such as which adsorbents to add to adsorber 1, as well as the time and amount of each adsorbent to add.

[0076] In a possible implementation of the embodiment of the present application, as Figure 4 As shown, in S103, generating configuration information of multiple adsorbents required for each adsorber in the hydrogen purification control system based on the adsorption sequence may specifically include the following steps S1031-S1302:

[0077] S1031. Determine the target gas that each adsorber in the hydrogen purification control system plans to adsorb based on the adsorption sequence.

[0078] Exemplarily, adsorber 1 can be used to adsorb various gases in the first position of the adsorption order, so the target gas that adsorber 1 plans to adsorb can be C1, C5+, and CO2 gases in the aforementioned example; adsorber 2 can be used to adsorb various gases in the second position of the adsorption order, so the target gas that adsorber 2 plans to adsorb can be C2, N2, and H2O gases in the aforementioned example; adsorber 3 can be used to adsorb various gases in the third position of the adsorption order, so the target gas that adsorber 3 plans to adsorb can be C3, C4, and CO gases in the aforementioned example.

[0079] S1032: Generate configuration information for each adsorber to adsorb the target gas, where the configuration information at least includes the weight of an adsorbent required for each adsorber to adsorb the target gas.

[0080] In an embodiment of the present application, the configuration information of each adsorber for adsorbing the target gas may include the weight of the adsorbent required to adsorb the target gas using the adsorber. For example, in the above example, if adsorber 1 is planned to be used to adsorb C1, C5+, and CO2 gases, the configuration information of adsorber 1 should at least include the type of adsorbent required to adsorb the above three gases and the weight of each adsorbent. For example, the adsorbents for adsorbing C1, C5+, and CO2 gases are adsorbent 1, adsorbent 2, and adsorbent 3, respectively. Based on the component information shown in Table 1, the weights of adsorbent 1, adsorbent 2, and adsorbent 3 required to completely adsorb the above C1, C5+, and CO2 gases are W1, W2, and W3, respectively. The configuration information for adsorber 1 may include the above content.

[0081] In a possible implementation of the embodiment of the present application, as Figure 5 As shown, generating the configuration information of each adsorber for adsorbing the target gas in S1032 may specifically include the following steps S1321-S1323:

[0082] S1321. Divide the adsorbent into multiple portions according to the weight of the adsorbent required by each adsorber to adsorb the target gas.

[0083] S1322. Determine the adsorption time of any one of the adsorbents.

[0084] S1323. Determine the addition time of each portion of the adsorbent according to the adsorption time, and obtain the configuration information.

[0085] In embodiments of the present application, the configuration information for each adsorber may also include the time for adding the adsorbent. For example, in the above example, due to the high content of C1 gas, if adsorbent 1 weighing W1 is added to adsorber 1 at the same time, this may result in a decrease in adsorption efficiency as the adsorption time increases. Therefore, embodiments of the present application can perform adsorption in multiple time periods, with a portion of adsorbent 1 added to adsorber 1 during each time period.

[0086] It should be noted that for gases with low content, the adsorbent required does not need to be divided into multiple portions, but can be directly added to the adsorber. For example, for adsorbent 1 and adsorbent 2 for adsorbing C5+ and CO2 gases, there is no need to divide them into multiple portions.

[0087] For example, the adsorbent 1 can be divided into three parts. Initially, the adsorbent 2, the adsorbent 3 and the first part of the adsorbent 1 are added to the adsorber 1; after a period of time, the second part of the adsorbent 1 is added to the adsorber 1; after another period of time, the third part of the adsorbent 1 is added to the adsorber 1.

[0088] The intervals can be determined based on the estimated time required to adsorb the C1 gas. For example, if it is estimated that 3 hours are required to adsorb the C1 gas in the hydrogen-rich gas stream, the adsorbent 1 can be divided into three portions, and one portion of the adsorbent 1 can be added to the adsorber 1 every hour.

[0089] Accordingly, the type, weight, addition time and other information of the additives required for each other adsorber can be determined in the above manner.

[0090] In a possible implementation of an embodiment of the present application, the number of adsorbers may be greater than the number of adsorption groups. For example, the number of adsorbers may be at least one greater than the number of adsorption groups. For example, if the number of adsorbers is 4, 3 adsorption groups may be generated when determining the adsorption groups; if the number of adsorbers is 5, 4 adsorption groups may be generated, so that the number of adsorbers is at least greater than the number of adsorption groups. In this way, after using one adsorber to adsorb the others in an adsorption group respectively, the last adsorber may be used to adsorb each type of gas again to further ensure the purity of the hydrogen finally output.

[0091] In one possible implementation of the present invention, multiple adsorbers may be used for adsorption of high-content gases. For example, in the example above, where the C1 gas content is relatively high, an additional adsorber may be added to adsorber 1 to adsorb the target gas ranked first in the adsorption order.

[0092] S104 . According to the configuration information, control the adsorbent adding device of the hydrogen purification control system to add a plurality of adsorbents into each of the adsorbers.

[0093] In the embodiment of the present application, after obtaining the configuration information of each adsorber, the hydrogen purification control system can control the adsorbent adding device to add adsorbent to each adsorber according to the above configuration information.

[0094] S105 , controlling each of the adsorbers to which the plurality of adsorbents are added to purify hydrogen from the hydrogen-rich gas stream.

[0095] After the hydrogen-rich gas stream is fed from the control system's inlet to each adsorber, each adsorber uses the adsorbent it has been added to absorb the corresponding impurities in the hydrogen-rich stream, producing hydrogen with a purity that meets process requirements. The purified hydrogen can then be output through the control system's outlet.

[0096] In an embodiment of the present application, the hydrogen purification control system can obtain the gas component information of the hydrogen-rich gas flow to be purified, and can determine the adsorption order of various gases in the hydrogen-rich gas flow according to the above gas component information. Then, based on different adsorption orders, the hydrogen purification control system can generate configuration information of multiple adsorbents required for each adsorber. Among them, the configuration information of various adsorbents in any adsorber is not exactly the same. The hydrogen purification control system can control the adsorbent adding device to add multiple adsorbents to each adsorber according to the above configuration information, so that after the hydrogen-rich gas flow is input, the hydrogen-rich gas flow is purified by hydrogen. Applying the method provided in the embodiment of the present application, different adsorbents can be added to different adsorbers, so as to control each adsorber to be mainly used for adsorbing different gases, thereby solving the problem in the prior art that a large number of adsorbers are required because the adsorbents added to each adsorber are the same and each adsorber has the same function. Application of this method can significantly reduce the process cost of hydrogen purification.

[0097] By applying the method described in the aforementioned embodiment, each adsorber in the hydrogen purification control system can be controlled to adsorb different types of gases. Because the types of hydrogen-rich gas streams processed during a single adsorption operation vary, and the contents of various gases in each batch of hydrogen-rich gas stream also vary, the adsorption time required by each adsorber to purify a batch of hydrogen-rich gas stream also varies. This can result in significant differences in the cumulative adsorption time of each adsorber after purifying multiple batches of hydrogen-rich gas streams.

[0098] To compensate for the above differences and ensure that the adsorption time of each adsorber is relatively uniform over a period of time, the control system can adjust the working order of each adsorber. The above working order can be used to represent the adsorption order of each gas in the hydrogen-rich gas stream by each adsorber.

[0099] Specifically, the cumulative adsorption time of each adsorber can be determined over a period of time or after several batches of hydrogen-rich gas have been purified. For example, the cumulative adsorption time of each adsorber can be calculated once every week, or after every 10 batches of hydrogen-rich gas have been purified.

[0100] Then, the control system can adjust the working order of each adsorber according to the accumulated adsorption time.

[0101] Typically, the adsorber in the first position in the operating order, i.e., adsorber 1, is primarily used to adsorb the gas in the first position in the adsorption order, that is, the target gas in adsorption group 1. The gas in adsorption group 1 generally contains the gas with the highest content, and the time required to adsorb this gas is often longer. Therefore, the cumulative operating time of adsorber 1 is also often longer.

[0102] After working for a period of time, adsorber 1 can be adjusted to a relatively later working order according to the accumulated adsorption time to balance the accumulated adsorption time of each adsorber.

[0103] For example, if there are five adsorbers, these adsorbers perform adsorption of each batch of hydrogen-rich gas stream in the order of adsorber 1 - adsorber 2 - adsorber 3 - adsorber 4 - adsorber 5. After a period of time, the above working order can be adjusted by calculating the cumulative adsorption time of each adsorber. For example, the adjusted working order can be adsorber 5 - adsorber 3 - adsorber 4 - adsorber 2 - adsorber 1 to adsorb the subsequently input hydrogen-rich gas stream. After another period of time, the above working order can be changed to adsorber 4 - adsorber 2 - adsorber 1 - adsorber 5 - adsorber 3 to adsorb the subsequently input hydrogen-rich gas stream.

[0104] In another possible implementation of the embodiment of the present application, each adsorber in the control system may include an outlet. After each adsorber completes the adsorption of the hydrogen-rich gas flow, a gas sample may be collected through the outlet for testing to determine the actual adsorption effect of each adsorber.

[0105] Then, an adsorption model can be established based on the gas component information of the hydrogen-rich gas flow, the configuration information of any adsorber, and the corresponding adsorption effect. The adsorption model can be used to represent the correspondence between the hydrogen-rich gas flow with various gas component information and the number of adsorbers required for purifying hydrogen and the configuration information of each adsorber.

[0106] For example, after configuring an adsorber according to certain configuration information and then using it to adsorb a corresponding target gas, the adsorber's adsorption performance on the target gas can be measured to obtain a relationship between the adsorber and the corresponding adsorption performance. By measuring the adsorption performance of the same target gas in multiple batches of hydrogen-rich gas streams, multiple sets of similar data can be obtained. After simulating these multiple sets of data, a mathematical model can be established that relates different gas composition information, adsorber configuration information, and the corresponding adsorption performance.

[0107] In this way, when performing hydrogen purification processing on the target type of hydrogen-rich gas flow, each adsorber can be configured and hydrogen purification can be performed according to the corresponding relationship provided by the adsorption model, thereby reducing the waiting time required for configuring the configuration information of the adsorber.

[0108] It should be noted that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0109] Reference Figure 6 , shows a schematic diagram of a hydrogen purification control device provided in an embodiment of the present application. The device can be applied to a hydrogen purification control system and can specifically include an acquisition module 601, a determination module 602, a generation module 603, an addition module 604, and a purification module 605, wherein:

[0110] An acquisition module 601 is used to obtain gas component information of the hydrogen-rich gas stream to be purified;

[0111] A determination module 602 is configured to determine the adsorption order of various gases in the hydrogen-rich gas flow based on the gas component information;

[0112] A generating module 603 is configured to generate configuration information of multiple adsorbents required for each adsorber in the hydrogen purification control system based on the adsorption sequence, wherein the configuration information of the various adsorbents in any adsorber is not completely the same;

[0113] An adding module 604 is configured to control the adsorbent adding device of the hydrogen purification control system to add a plurality of adsorbents to each of the adsorbers according to the configuration information;

[0114] The purification module 605 is configured to control each of the adsorbers to which the plurality of adsorbents are added to purify hydrogen from the hydrogen-rich gas stream.

[0115] In a possible implementation of an embodiment of the present application, the determination module 602 can be specifically used to: determine the content of each type of gas except hydrogen based on the gas component information; group each type of gas based on the content, and the types of gas contained in any gas group shall not exceed a preset number; select a type of gas from each gas group to form multiple adsorption groups; and determine the adsorption order of each type of gas based on the multiple adsorption groups.

[0116] In an embodiment of the present application, the determination module 602 can also be used to: determine the gas with the largest content in each of the adsorption groups; determine the adsorption order of the gas with the largest content in each of the adsorption groups; wherein the adsorption order of the gas with the largest content in each of the adsorption groups is the same as the order of gas content from most to least; determine the adsorption order of other gases in each of the adsorption groups based on the adsorption order of the gas with the largest content in each of the adsorption groups; wherein the adsorption order of each of the gases belonging to the same adsorption group is the same.

[0117] In a possible implementation of an embodiment of the present application, the generation module 603 can be specifically used to: determine the target gas that each adsorber in the hydrogen purification control system plans to adsorb based on the adsorption order; generate configuration information for each adsorber to adsorb the target gas, and the configuration information includes at least the weight of the adsorbent required for each adsorber to adsorb the target gas.

[0118] In an embodiment of the present application, the configuration information also includes the addition time of the adsorbent, and the generation module 603 can also be used to: divide the adsorbent into multiple portions according to the weight of the adsorbent required for each adsorber to adsorb the target gas; determine the adsorption time of any portion of the adsorbent; and determine the addition time of each portion of the adsorbent based on the adsorption time to obtain the configuration information.

[0119] In a possible implementation of the embodiment of the present application, the device may further include a cumulative adsorption time determination module and a work order adjustment module.

[0120] a cumulative adsorption time determination module, configured to determine the cumulative adsorption time of each of the adsorbers;

[0121] The working sequence adjustment module is used to adjust the working sequence of each of the adsorbers according to the accumulated adsorption time, wherein the working sequence is used to represent the adsorption sequence of each of the adsorbers in adsorbing various gases in the hydrogen-rich gas flow.

[0122] In another possible implementation of the embodiment of the present application, the device may further include an adsorption effect determination module and an adsorption model construction module.

[0123] an adsorption effect determination module, configured to determine the adsorption effect of any of the adsorbers, wherein the adsorption effect is obtained by detecting the gas output from the gas outlet of any of the adsorbers;

[0124] An adsorption model construction module is used to establish an adsorption model based on the gas component information of the hydrogen-rich gas flow, the configuration information of any of the adsorbers, and the corresponding adsorption effect. The adsorption model is used to represent the correspondence between the hydrogen-rich gas flow with various gas component information and the number of adsorbers required for purifying hydrogen and the configuration information of each adsorber.

[0125] Correspondingly, the purification module 605 may also be configured to: when performing hydrogen purification processing on a target type of hydrogen-rich gas flow, configure each of the adsorbers according to the corresponding relationship and perform hydrogen purification.

[0126] The embodiment of the present application also provides a hydrogen purification control device, by using which each step in the aforementioned method embodiments can be implemented.

[0127] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment part.

[0128] Reference Figure 7 , shows a schematic diagram of a hydrogen purification control system provided in an embodiment of the present application. Figure 7 As shown, the hydrogen purification control system 700 in the embodiment of the present application includes: a processor 710, a memory 720, and a computer program 721 stored in the memory 720 and executable on the processor 710. When the processor 710 executes the computer program 721, the steps in each embodiment of the above-mentioned hydrogen purification control method are implemented, such as Figure 1 Alternatively, when the processor 710 executes the computer program 721, the functions of the modules / units in the above-mentioned device embodiments are realized, for example, Figure 6 Functions of modules 601 to 605 are shown.

[0129] Exemplarily, the computer program 721 can be divided into one or more modules / units, which are stored in the memory 720 and executed by the processor 710 to complete the present application. The one or more modules / units can be a series of computer program instruction segments that can perform specific functions, and the instruction segments can be used to describe the execution process of the computer program 721 in the hydrogen purification control system 700. For example, the computer program 721 can be divided into an acquisition module, a determination module, a generation module, an addition module, and a purification module, and the specific functions of each module are as follows:

[0130] an acquisition module, used for acquiring gas component information of the hydrogen-rich gas stream to be purified;

[0131] a determination module, configured to determine the adsorption order of various gases in the hydrogen-rich gas flow according to the gas component information;

[0132] a generating module for generating, based on the adsorption sequence, configuration information of a plurality of adsorbents required for each adsorber in the hydrogen purification control system, wherein the configuration information of the various adsorbents in any adsorber is not completely the same;

[0133] an adding module, configured to control the adsorbent adding device of the hydrogen purification control system to add a plurality of adsorbents into each of the adsorbers according to the configuration information;

[0134] The purification module is used to control each of the adsorbers added with a plurality of the adsorbents to purify the hydrogen from the hydrogen-rich gas stream.

[0135] The hydrogen purification control system 700 may be a system for implementing the steps in the aforementioned method embodiments. The hydrogen purification control system 700 may include computing devices such as desktop computers and cloud servers, which may be used to execute the steps in the aforementioned method embodiments. The hydrogen purification control system 700 may include, but is not limited to, a processor 710 and a memory 720. Those skilled in the art will understand that Figure 7 This is only an example of the hydrogen purification control system 700 and does not constitute a limitation of the hydrogen purification control system 700. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the hydrogen purification control system 700 may also include input and output devices, network access devices, buses, etc.

[0136] The processor 710 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0137] The memory 720 may be an internal storage unit of the hydrogen purification control system 700, such as a hard disk or memory of the hydrogen purification control system 700. The memory 720 may also be an external storage device of the hydrogen purification control system 700, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the hydrogen purification control system 700. Furthermore, the memory 720 may also include both an internal storage unit of the hydrogen purification control system 700 and an external storage device. The memory 720 is used to store the computer program 721 and other programs and data required by the hydrogen purification control system 700. The memory 720 may also be used to temporarily store data that has been output or is to be output.

[0138] An embodiment of the present application also discloses a hydrogen purification control system, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the hydrogen purification control method described in the aforementioned embodiments is implemented.

[0139] The embodiments of the present application further disclose a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the hydrogen purification control method as described in the above embodiments is implemented.

[0140] The embodiments of the present application further disclose a computer program product. When the computer program product is run on a computer, the computer is enabled to execute the hydrogen purification control method described in the aforementioned embodiments.

[0141] The above embodiments are intended only to illustrate the technical solutions of the present application and are not intended to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they may still modify the technical solutions described in the above embodiments or replace some of the technical features therein with equivalents; and such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application and should be included within the scope of protection of the present application.

Claims

1. A hydrogen purification control method, characterized in that: Applied to a hydrogen purification control system, the method comprises: Obtaining gas component information of the hydrogen-rich gas stream to be purified, wherein the gas component information is obtained by sampling and detecting the hydrogen-rich gas stream to be purified; Determine the content of each type of gas except hydrogen based on the gas component information, and group the gases in descending order of the content, so that the number of gas types contained in any gas group does not exceed a preset number; Selecting a type of gas from each of the gas groups to form a plurality of adsorption groups, and determining the gas with the highest content in each of the adsorption groups and the adsorption order of the gas with the highest content in each of the adsorption groups; wherein the gas content in each of the adsorption groups is relatively balanced, and the adsorption order of the gas with the highest content in each of the adsorption groups is the same as the order of the gas content from highest to lowest; Determine the adsorption order of other gases in each adsorption group according to the adsorption order of the gas with the largest content in each adsorption group; wherein the adsorption order of each gas belonging to the same adsorption group is the same; determining, based on the adsorption sequence, target gases that are planned to be adsorbed by each adsorber in the hydrogen purification control system, and generating configuration information for each adsorber to adsorb the target gases, the configuration information including at least a weight of an adsorbent required by each adsorber to adsorb the target gases, wherein the configuration information of the various adsorbents in any adsorber is not completely identical; According to the configuration information, controlling the adsorbent adding device of the hydrogen purification control system to add a plurality of the adsorbents into each of the adsorbers; The adsorbers to which the plurality of adsorbents are added are controlled to purify the hydrogen-rich gas stream.

2. The method according to claim 1, characterized in that The configuration information also includes the adsorbent addition time. The generating of the configuration information for each adsorber to adsorb the target gas includes: dividing the adsorbent into a plurality of portions according to the weight of the adsorbent required by each adsorber to adsorb the target gas; determining the adsorption time of any of the adsorbents; According to the adsorption time, the addition time of each portion of the adsorbent is determined to obtain the configuration information.

3. The method according to claim 1 or 2, characterized in that After controlling each of the adsorbers to which the plurality of adsorbents are added to purify the hydrogen-rich gas stream, the method further comprises: determining the cumulative adsorption time of each of the adsorbers; The working order of each of the adsorbers is adjusted according to the accumulated adsorption time. The working order is used to indicate the order in which each of the adsorbers adsorbs various gases in the hydrogen-rich gas stream.

4. The method according to claim 1 or 2, characterized in that After controlling each of the adsorbers to which the plurality of adsorbents are added to purify the hydrogen-rich gas stream, the method further comprises: Determining an adsorption effect of any of the adsorbers, wherein the adsorption effect is obtained by detecting gas output from a gas outlet of any of the adsorbers; establishing an adsorption model based on the gas component information of the hydrogen-rich gas flow, the configuration information of any of the adsorbers, and the corresponding adsorption effect, wherein the adsorption model is used to represent the correspondence between the hydrogen-rich gas flow with various gas component information, the number of adsorbers required for purifying hydrogen, and the configuration information of each adsorber; When performing hydrogen purification processing on the target type of hydrogen-rich gas stream, each of the adsorbers is configured according to the corresponding relationship and hydrogen purification is performed.

5. A hydrogen purification control device, characterized in that: Applied to a hydrogen purification control system, the device is used to implement the hydrogen purification control method according to any one of claims 1 to 4, and the device comprises: An acquisition module, used for acquiring gas component information of the hydrogen-rich gas stream to be purified; a determination module, configured to determine the adsorption order of various gases in the hydrogen-rich gas flow according to the gas component information; a generating module for generating, based on the adsorption sequence, configuration information of a plurality of adsorbents required for each adsorber in the hydrogen purification control system, wherein the configuration information of the various adsorbents in any adsorber is not completely the same; an adding module, configured to control the adsorbent adding device of the hydrogen purification control system to add a plurality of the adsorbents into each of the adsorbers according to the configuration information; The purification module is used to control each of the adsorbers added with a plurality of the adsorbents to purify the hydrogen from the hydrogen-rich gas stream.

6. A hydrogen purification control system comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the hydrogen purification control method according to any one of claims 1 to 4 is implemented.

7. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the hydrogen purification control method according to any one of claims 1 to 4 is implemented.

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