Method and system for intelligent electrolytic control of hydrogen sulfide content

Abstract

The application provides a system for intelligently controlling hydrogen sulfide content by electrolysis, which comprises: a hydrogen sulfide monitoring oxidation device for detecting hydrogen sulfide content in real time to generate a content signal; and a monitoring system for generating an electrolytic oxidation instruction according to the content signal, so that the hydrogen sulfide monitoring oxidation device is controlled to remove hydrogen sulfide by the electrolytic oxidation instruction. The application intelligently starts an electrolytic oxidation process by the hydrogen sulfide monitoring oxidation device and the monitoring system, strong oxidants are generated by electrolysis in the electrolytic oxidation process, the strong oxidants oxidize and remove hydrogen sulfide, and the content of hydrogen sulfide is intelligently controlled.

Description

Technical Field

[0001] This invention relates to the field of oil and gas extraction technology, and more specifically, to a method and system for intelligent electrolytic control of hydrogen sulfide content. Background Technology

[0002] Hydrogen sulfide is a toxic gas that is highly corrosive to metal pipelines in humid environments, posing a significant safety hazard to gas well production and transportation during natural gas extraction. When hydrogen sulfide is continuously extracted from a gas field, corrosion-resistant pipes and anti-corrosion agents are generally used for gathering and transportation corrosion prevention. However, for gas wells that produce hydrogen sulfide intermittently, using the above-mentioned conventional processes would require a large investment and be very expensive.

[0003] To address the problems of existing technologies, this invention provides a method and system for intelligent electrolytic control of hydrogen sulfide content. Summary of the Invention

[0004] To address the problems of the prior art, the present invention provides a system for intelligent electrolytic control of hydrogen sulfide content, the system comprising:

[0005] A hydrogen sulfide monitoring and oxidation device is used to detect hydrogen sulfide content in real time and generate a content signal;

[0006] A monitoring system is used to generate an electrolytic oxidation command based on the content signal, so as to control the hydrogen sulfide monitoring and oxidation device to perform hydrogen sulfide removal treatment through the electrolytic oxidation command.

[0007] According to one embodiment of the present invention, the system comprises a plurality of hydrogen sulfide monitoring oxidation devices connected in sequence.

[0008] According to one embodiment of the present invention, the system includes two hydrogen sulfide monitoring and oxidation devices connected in sequence, namely a front-stage hydrogen sulfide monitoring and oxidation device connected to the wellhead of the gas production tree and a back-stage hydrogen sulfide monitoring and oxidation device connected to the data collection terminal of the field station.

[0009] According to one embodiment of the present invention, the pre-stage hydrogen sulfide monitoring oxidation device comprises:

[0010] A front-end hydrogen sulfide online monitoring instrument is connected to the wellhead of the gas production tree to detect the hydrogen sulfide content in the natural gas produced from the gas well in real time, so as to generate a front-end content signal.

[0011] The pre-electrolytic oxidation device is connected to the pre-hydrogen sulfide online monitoring instrument and is used to electrolyze water through micro-voltage to form a strong oxidant. The strong oxidant can oxidize hydrogen sulfide into elemental sulfur, thereby achieving the purpose of removing hydrogen sulfide.

[0012] According to one embodiment of the present invention, the downstream hydrogen sulfide monitoring oxidation device comprises:

[0013] A post-stage hydrogen sulfide online monitoring instrument is connected to the pre-stage electrolytic oxidation device and is used to detect the hydrogen sulfide content in the exhaust gas of the pre-stage electrolytic oxidation device in real time, so as to generate a post-stage content signal.

[0014] The downstream electrolytic oxidation device is connected to the downstream hydrogen sulfide online monitoring instrument and is used to electrolyze water through a micro-voltage to form the strong oxidant. The strong oxidant can oxidize hydrogen sulfide into elemental sulfur, thereby achieving the purpose of removing hydrogen sulfide.

[0015] According to one embodiment of the present invention, the monitoring system includes a control module that performs the following logic:

[0016] The control starts the pre-stage hydrogen sulfide online monitoring instrument;

[0017] When the pre-stage content signal is greater than the hydrogen sulfide content threshold, the electrolysis oxidation command is sent to the pre-stage electrolysis oxidation device, and the downstream hydrogen sulfide online monitoring instrument is started.

[0018] When the downstream content signal is greater than the hydrogen sulfide content threshold, an increase intensity command is sent to the upstream electrolytic oxidation device, and the downstream electrolytic oxidation device is started.

[0019] When the downstream content signal is not greater than the hydrogen sulfide content threshold, the downstream electrolytic oxidation device is shut down, while the electrolytic intensity of the upstream electrolytic oxidation device remains unchanged.

[0020] When the pre-stage content signal is not greater than the hydrogen sulfide content threshold, the pre-stage electrolytic oxidation device and the post-stage hydrogen sulfide online monitoring instrument are shut down.

[0021] According to one embodiment of the present invention, the pre-electrolytic oxidation device comprises:

[0022] The adjustment module is used to adjust the current in real time according to the increased intensity command, thereby controlling the rate at which the strong oxidant is generated by electrolysis, so that the content of the strong oxidant and hydrogen sulfide reaches a balance.

[0023] According to one embodiment of the present invention, the strong oxidant includes, but is not limited to, hydrogen peroxide, ozone, and OH radicals.

[0024] According to another aspect of the present invention, a method for intelligently controlling hydrogen sulfide content by electrolysis is also provided, performed by a system as described in any of the preceding claims, the method comprising the following steps:

[0025] The hydrogen sulfide monitoring and oxidation device is used to detect the hydrogen sulfide content in real time and generate a content signal.

[0026] The monitoring system generates an electrolytic oxidation command based on the content signal.

[0027] The hydrogen sulfide monitoring and oxidation device is controlled by the electrolytic oxidation command to perform hydrogen sulfide removal treatment.

[0028] According to another aspect of the invention, a storage medium is also provided, which includes a series of instructions for performing the method steps described above.

[0029] The present invention provides a method and system for intelligent electrolytic control of hydrogen sulfide content, which has the following advantages: the electrolytic oxidation process is intelligently started by a hydrogen sulfide monitoring and oxidation device and a monitoring system. The electrolytic oxidation process generates a strong oxidant, which oxidizes and removes hydrogen sulfide, thereby achieving intelligent control of hydrogen sulfide content.

[0030] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0031] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0032] Figure 1 A system structure block diagram of intelligent electrolysis for controlling hydrogen sulfide content is shown according to an embodiment of the present invention;

[0033] Figure 2 A system structure block diagram of intelligent electrolytic control of hydrogen sulfide content is shown according to another embodiment of the present invention;

[0034] Figure 3 A control module execution logic diagram according to an embodiment of the present invention is shown;

[0035] Figure 4 A flowchart of a method for intelligent electrolysis to control hydrogen sulfide content according to an embodiment of the present invention is shown;

[0036] Figure 5 A flowchart of a method for intelligently controlling hydrogen sulfide content by electrolysis according to another embodiment of the present invention is shown. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] Figure 1A system block diagram of intelligent electrolytic control of hydrogen sulfide content is shown according to an embodiment of the present invention.

[0039] like Figure 1 As shown, a system for intelligent electrolytic control of hydrogen sulfide content includes a hydrogen sulfide monitoring and oxidation device and a monitoring system. Specifically, the hydrogen sulfide monitoring and oxidation device is used to detect the hydrogen sulfide content in real time to generate a content signal; the monitoring system is used to generate an electrolytic oxidation command based on the content signal, so as to control the hydrogen sulfide monitoring and oxidation device to perform hydrogen sulfide removal treatment through the electrolytic oxidation command.

[0040] In one embodiment, a system for intelligent electrolytic control of hydrogen sulfide content includes multiple hydrogen sulfide monitoring and oxidation devices connected in sequence.

[0041] Figure 2 A system block diagram of intelligent electrolytic control of hydrogen sulfide content is shown according to another embodiment of the present invention.

[0042] like Figure 2 As shown, a system for intelligent electrolytic control of hydrogen sulfide content includes two hydrogen sulfide monitoring and oxidation devices connected in sequence: a front-stage hydrogen sulfide monitoring and oxidation device connected to the wellhead of the gas production tree and a back-stage hydrogen sulfide monitoring and oxidation device connected to the data acquisition terminal of the site.

[0043] like Figure 2 As shown, the pre-stage hydrogen sulfide monitoring and oxidation device includes: a pre-stage online hydrogen sulfide monitor and a pre-stage electrolytic oxidation device.

[0044] In one embodiment, the upstream hydrogen sulfide online monitoring instrument is connected to the wellhead of the gas production tree to detect the hydrogen sulfide content in the natural gas produced from the gas well in real time, so as to generate a upstream content signal; the upstream electrolytic oxidation device is connected to the upstream hydrogen sulfide online monitoring instrument to electrolyze water through micro-voltage to form a strong oxidant, which can oxidize hydrogen sulfide into elemental sulfur, thereby achieving the purpose of removing hydrogen sulfide.

[0045] In one embodiment, the pre-electrolytic oxidation device includes an adjustment module for adjusting the current magnitude in real time according to an increased intensity command, thereby controlling the rate at which strong oxidant is generated by electrolysis, so as to achieve a balance between the content of strong oxidant and hydrogen sulfide.

[0046] like Figure 2 As shown, the downstream hydrogen sulfide monitoring and oxidation device includes: a downstream hydrogen sulfide online monitoring instrument and a downstream electrolytic oxidation device.

[0047] In one embodiment, the downstream hydrogen sulfide online monitoring instrument is connected to the upstream electrolytic oxidation device to detect the hydrogen sulfide content in the exhaust gas of the upstream electrolytic oxidation device in real time, so as to generate a downstream content signal; the downstream electrolytic oxidation device is connected to the downstream hydrogen sulfide online monitoring instrument to electrolyze water through micro-voltage to form a strong oxidant, which can oxidize hydrogen sulfide into elemental sulfur, thereby achieving the purpose of removing hydrogen sulfide.

[0048] In one embodiment, the strong oxidant includes, but is not limited to, hydrogen peroxide (H2O2), ozone (O3), and OH radicals (·OH).

[0049] Figure 3 A control module execution logic diagram according to an embodiment of the present invention is shown.

[0050] In one embodiment, the monitoring system includes a control module that performs actions such as Figure 3 The logic shown.

[0051] like Figure 3 As shown, in step S301, the upstream hydrogen sulfide online monitoring instrument is activated. Specifically, when performing intelligent electrolytic control of hydrogen sulfide content, the upstream hydrogen sulfide online monitoring instrument must first be activated to detect the hydrogen sulfide content in the natural gas produced from the gas well in real time and generate a upstream content signal.

[0052] like Figure 3 As shown, in step S302, when the current-stage content signal is greater than the hydrogen sulfide content threshold, an electrolysis oxidation command is sent to the upstream electrolysis oxidation device, and the downstream hydrogen sulfide online monitoring instrument is activated. Specifically, the control module needs to determine whether the upstream content signal is greater than the hydrogen sulfide content threshold. When the upstream content signal is greater than the hydrogen sulfide content threshold, it indicates that the hydrogen sulfide content in the natural gas produced from the current gas well exceeds the standard, and hydrogen sulfide removal treatment is required. At this time, the determination module sends an electrolysis oxidation command to the upstream electrolysis oxidation device to perform hydrogen sulfide removal treatment through the upstream electrolysis oxidation device. At the same time, the determination module activates the downstream hydrogen sulfide online monitoring instrument, which uses the downstream hydrogen sulfide online monitoring instrument to detect the hydrogen sulfide content in the gas discharged from the upstream electrolysis oxidation device in real time, generating the downstream content signal.

[0053] like Figure 3As shown, in step S303, when the downstream content signal is greater than the hydrogen sulfide content threshold, an increase intensity command is sent to the upstream electrolytic oxidation device, and the downstream electrolytic oxidation device is started. Specifically, the control module needs to determine whether the downstream content signal is greater than the hydrogen sulfide content threshold. When the downstream content signal is greater than the hydrogen sulfide content threshold, it indicates that the hydrogen sulfide content in the exhaust gas of the upstream electrolytic oxidation device exceeds the standard, and hydrogen sulfide removal treatment is required. At this time, the determination module sends an increase intensity command to the upstream electrolytic oxidation device to increase the hydrogen sulfide removal intensity of the upstream electrolytic oxidation device. Furthermore, the determination module sends an electrolytic oxidation command to the downstream electrolytic oxidation device to perform hydrogen sulfide removal treatment on the exhaust gas of the upstream electrolytic oxidation device through the downstream electrolytic oxidation device.

[0054] like Figure 3 As shown, in step S304, when the downstream content signal is not greater than the hydrogen sulfide content threshold, the downstream electrolytic oxidation device is shut down, while the electrolysis intensity of the upstream electrolytic oxidation device remains unchanged. Specifically, the control module needs to continuously determine whether the downstream content signal is greater than the hydrogen sulfide content threshold. When the downstream content signal is not greater than the hydrogen sulfide content threshold, it indicates that the upstream electrolytic oxidation device can remove hydrogen sulfide at its current electrolysis intensity, ensuring that the hydrogen sulfide content in its exhaust gas does not exceed the standard. Therefore, the downstream electrolytic oxidation device is no longer needed for hydrogen sulfide removal. Thus, the control module sends a shutdown command to the downstream electrolytic oxidation device, shutting it down.

[0055] like Figure 3 As shown, in step S305, when the current stage content signal is not greater than the hydrogen sulfide content threshold, the control module shuts down the upstream electrolytic oxidation device and the downstream hydrogen sulfide online monitoring instrument. Specifically, the control module needs to continuously determine whether the upstream content signal is greater than the hydrogen sulfide content threshold. When the upstream content signal is not greater than the hydrogen sulfide content threshold, it indicates that the hydrogen sulfide content in the natural gas produced from the gas well is not excessive and no hydrogen sulfide removal treatment is required. Therefore, at this time, the control module sends a shutdown command to the upstream electrolytic oxidation device and the downstream hydrogen sulfide online monitoring instrument, shutting down both devices and leaving only the upstream hydrogen sulfide online monitoring instrument to continuously detect the hydrogen sulfide content in the natural gas produced from the gas well.

[0056] In one embodiment, the hydrogen sulfide content threshold is set to zero.

[0057] This invention utilizes an online hydrogen sulfide monitor to detect the hydrogen sulfide content in the produced natural gas in real time. When the online hydrogen sulfide monitor detects hydrogen sulfide and determines its content, the electrolytic oxidation device is activated. When the online hydrogen sulfide monitor does not detect hydrogen sulfide, the electrolytic oxidation device is shut down. The electrolytic oxidation device uses special electrodes to electrolyze water-containing natural gas, generating a strong oxidizing component. The strong oxidant oxidizes the hydrogen sulfide into elemental sulfur, achieving the purpose of intelligent electrolytic control of hydrogen sulfide.

[0058] Figure 4 A flowchart of a method for intelligently controlling hydrogen sulfide content by electrolysis according to an embodiment of the present invention is shown. The method for intelligently controlling hydrogen sulfide content by electrolysis is executed by a system for intelligently controlling hydrogen sulfide content by electrolysis.

[0059] like Figure 4 As shown, in step S1, the hydrogen sulfide content is detected in real time by a hydrogen sulfide monitoring oxidation device to generate a content signal. Figure 4 As shown, in step S2, the monitoring system generates an electrolytic oxidation command based on the content signal. For example... Figure 4 As shown, in step S3, the hydrogen sulfide monitoring and oxidation device is controlled by the electrolytic oxidation command to perform hydrogen sulfide removal treatment.

[0060] Figure 5 A flowchart of a method for intelligently controlling hydrogen sulfide content by electrolysis according to another embodiment of the present invention is shown.

[0061] like Figure 5 As shown, in step S501, the upstream hydrogen sulfide online monitoring instrument is activated. Specifically, the monitoring system activates the upstream hydrogen sulfide online monitoring instrument via signal 1. The upstream hydrogen sulfide online monitoring instrument detects the hydrogen sulfide content in the natural gas produced from the gas well in real time and transmits the upstream content signal back to the monitoring system via signal 1. At this time, the upstream electrolytic oxidation unit, the downstream hydrogen sulfide online monitoring instrument, and the downstream electrolytic oxidation unit are all in the off state.

[0062] like Figure 5 As shown, in step S502, it is determined whether the preceding content signal is greater than the hydrogen sulfide content threshold. Specifically, the monitoring system determines whether the preceding content signal is greater than the hydrogen sulfide content threshold to determine whether hydrogen sulfide removal treatment is required. If the determination result in step S502 is negative, it indicates that hydrogen sulfide removal treatment is not required, and the hydrogen sulfide content in the natural gas produced from the gas well is continuously monitored by the preceding hydrogen sulfide online monitoring instrument.

[0063] If the judgment result in step S502 is yes, proceed to step S503 to start the pre-electrolysis oxidation unit and the post-hydrogen sulfide online monitoring instrument. Specifically, when the pre-electrolysis oxidation signal is greater than the hydrogen sulfide content threshold, it indicates that hydrogen sulfide removal treatment is required for the extracted natural gas. The monitoring system issues a command to start the pre-electrolysis oxidation unit via signal 2 and to start the post-hydrogen sulfide online monitoring instrument via signal 3.

[0064] like Figure 5As shown, in step S504, the pre-electrolytic oxidation device performs hydrogen sulfide removal treatment. Specifically, after the pre-electrolytic oxidation device is started, it electrolyzes water through a micro-voltage to form a strong oxidant. The strong oxidant can hydrogenate sulfide to elemental sulfur, thereby achieving the purpose of removing hydrogen sulfide.

[0065] like Figure 5 As shown, in step S505, the current of the upstream electrolytic oxidation device is adjusted in real time based on the upstream content signal, thereby controlling the rate at which strong oxidant is generated during electrolysis. Specifically, the monitoring system adjusts the current of the upstream electrolytic oxidation device in real time based on the hydrogen sulfide content detected by the upstream hydrogen sulfide online monitoring device, thereby controlling the rate at which strong oxidant is generated during electrolysis, so that the strong oxidant and hydrogen sulfide content reach a balance, achieving intelligent and economical sulfur control.

[0066] like Figure 5 As shown, in step S506, it is determined whether the downstream content signal is greater than the hydrogen sulfide content threshold. Specifically, the monitoring system determines whether the downstream content signal is greater than the hydrogen sulfide content threshold to determine whether hydrogen sulfide removal treatment is required for the gas discharged from the upstream electrolytic oxidation unit. If the determination result in step S506 is negative, it indicates that hydrogen sulfide removal treatment is not required for the gas discharged from the upstream electrolytic oxidation unit; only hydrogen sulfide removal treatment is needed for the extracted natural gas through the upstream electrolytic oxidation unit, and the process returns to step S504.

[0067] If the judgment result in step S506 is yes, then proceed to step S507, increase the electrolysis intensity of the pre-electrolysis oxidation unit, and start the post-electrolysis oxidation unit. Specifically, after the post-electrolysis hydrogen sulfide online monitor is started, it monitors the natural gas after oxidation treatment by the pre-electrolysis oxidation unit in real time. If the hydrogen sulfide content exceeds the standard, it feeds back to the monitoring system through signal 3. The monitoring system increases the electrolysis intensity of the pre-electrolysis oxidation unit and starts the post-electrolysis oxidation unit through signal 4.

[0068] like Figure 5 As shown, in step S508, the pre-electrolytic oxidation unit and the post-electrolytic oxidation unit perform hydrogen sulfide removal treatment. Specifically, the pre-electrolytic oxidation unit and the post-electrolytic oxidation unit work together to remove hydrogen sulfide. The pre-electrolytic oxidation unit removes hydrogen sulfide from the produced natural gas, and the post-electrolytic oxidation unit removes hydrogen sulfide from the gas discharged from the pre-electrolytic oxidation unit. After the post-electrolytic oxidation unit starts, it electrolyzes water through a micro-voltage to form a strong oxidant. This strong oxidant can hydrogen sulfide with water, thus achieving the purpose of emergency hydrogen sulfide removal.

[0069] like Figure 5As shown, in step S509, it is determined whether the subsequent content signal is not greater than the hydrogen sulfide content threshold. Specifically, the monitoring system determines whether the subsequent content signal is not greater than the hydrogen sulfide content threshold to determine whether further hydrogen sulfide removal treatment is needed. If the determination result in step S509 is negative, it indicates that further hydrogen sulfide removal treatment is needed, and the process returns to step S507.

[0070] If the judgment result in step S509 is yes, then proceed to step S510, shut down the downstream electrolytic oxidation device, and keep the electrolytic intensity of the upstream electrolytic oxidation device unchanged. Specifically, after the downstream hydrogen sulfide online monitor does not detect excessive hydrogen sulfide, it feeds back to the monitoring system through signal 3. The monitoring system then controls the shutdown of the downstream electrolytic oxidation device, while keeping the electrolytic intensity of the upstream electrolytic oxidation device unchanged.

[0071] like Figure 5 As shown, in step S511, it is determined whether the preceding content signal is not greater than the hydrogen sulfide content threshold. Specifically, the monitoring system determines whether the preceding content signal is not greater than the hydrogen sulfide content threshold to determine whether further hydrogen sulfide removal treatment is needed. If the determination result in step S511 is negative, it indicates that further hydrogen sulfide removal treatment is needed, and the process returns to step S507.

[0072] If the judgment result in step S511 is yes, then proceed to step S512 to shut down the upstream electrolytic oxidation unit and the downstream hydrogen sulfide online monitoring instrument. Specifically, after the upstream hydrogen sulfide online monitoring instrument does not detect excessive hydrogen sulfide, it feeds back to the monitoring system through signal 1, and the monitoring system controls the shutdown of the upstream electrolytic oxidation unit and the downstream hydrogen sulfide online monitoring instrument.

[0073] The method and system for intelligent electrolytic control of hydrogen sulfide content provided by this invention can also be used in conjunction with a computer-readable storage medium. The storage medium stores a computer program, which is executed to run the method for intelligent electrolytic control of hydrogen sulfide content. The computer program is capable of executing computer instructions, which include computer program code. The computer program code can be in the form of source code, object code, executable file, or some intermediate form.

[0074] Computer-readable storage media can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0075] It should be noted that the contents of computer-readable storage media may be appropriately added to or subtracted from the contents according to the requirements of legislation and patent practice in a jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable storage media may not include electrical carrier signals and telecommunication signals.

[0076] In summary, the method and system for intelligent electrolytic control of hydrogen sulfide content provided by the present invention have the following advantages: the electrolytic oxidation process is intelligently started by a hydrogen sulfide monitoring and oxidation device and a monitoring system; the electrolytic oxidation process generates a strong oxidant; the strong oxidant oxidizes and removes hydrogen sulfide, thereby achieving intelligent control of hydrogen sulfide content.

[0077] It should be understood that the embodiments disclosed herein are not limited to the specific structures, processing steps, or materials disclosed herein, but should be extended to equivalent substitutions of these features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0078] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0079] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0080] The phrase "an embodiment" or "an embodiment" used in this specification means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Therefore, the phrase "an embodiment" or "an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0081] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

[0082] While the embodiments disclosed in this invention are as described above, the content is merely for the purpose of facilitating understanding of the invention and is not intended to limit the invention. Any person skilled in the art to which this invention pertains may make any modifications and variations in form and detail of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection for this invention shall still be determined by the scope defined in the appended claims.

Claims

1. A system for intelligent electrolytic control of hydrogen sulfide content, characterized in that, The system includes: A hydrogen sulfide monitoring and oxidation device is used to detect hydrogen sulfide content in real time and generate a content signal; A monitoring system is used to generate an electrolytic oxidation command based on the content signal, so as to control the hydrogen sulfide monitoring and oxidation device to perform hydrogen sulfide removal treatment through the electrolytic oxidation command; The system comprises two hydrogen sulfide monitoring and oxidation devices connected in sequence: a pre-stage hydrogen sulfide monitoring and oxidation device connected to the wellhead of the gas production tree and a post-stage hydrogen sulfide monitoring and oxidation device connected to the data acquisition terminal of the site. The pre-stage hydrogen sulfide monitoring and oxidation device comprises a pre-stage online hydrogen sulfide monitor and a pre-stage electrolytic oxidation device; the post-stage hydrogen sulfide monitoring and oxidation device comprises a post-stage online hydrogen sulfide monitor and a post-stage electrolytic oxidation device. The upstream hydrogen sulfide online monitoring instrument is connected to the wellhead of the gas production tree and is used to detect the hydrogen sulfide content in the natural gas produced from the gas well in real time, so as to generate a upstream content signal. The pre-electrolysis oxidation device is connected to the pre-hydrogen sulfide online monitoring instrument and is used to electrolyze water through micro-voltage to form a strong oxidant. The strong oxidant can oxidize hydrogen sulfide into elemental sulfur, thereby achieving the purpose of removing hydrogen sulfide. The downstream hydrogen sulfide online monitoring instrument is connected to the upstream electrolytic oxidation device and is used to detect the hydrogen sulfide content in the exhaust gas of the upstream electrolytic oxidation device in real time, so as to generate a downstream content signal. The downstream electrolytic oxidation device is connected to the downstream hydrogen sulfide online monitoring instrument and is used to electrolyze water through micro-voltage to form the strong oxidant. The strong oxidant can oxidize hydrogen sulfide into elemental sulfur, thereby achieving the purpose of removing hydrogen sulfide. The monitoring system includes a control module that executes the following logic: controlling the activation of the upstream hydrogen sulfide online monitoring instrument; when the upstream content signal is greater than the hydrogen sulfide content threshold, sending the electrolysis oxidation command to the upstream electrolytic oxidation device and controlling the activation of the downstream hydrogen sulfide online monitoring instrument; when the downstream content signal is greater than the hydrogen sulfide content threshold, sending an increase intensity command to the upstream electrolytic oxidation device and controlling the activation of the downstream electrolytic oxidation device; when the downstream content signal is not greater than the hydrogen sulfide content threshold, controlling the shutdown of the downstream electrolytic oxidation device, while maintaining the electrolysis intensity of the upstream electrolytic oxidation device; when the upstream content signal is not greater than the hydrogen sulfide content threshold, controlling the shutdown of both the upstream electrolytic oxidation device and the downstream hydrogen sulfide online monitoring instrument.

2. The intelligent electrolytic hydrogen sulfide content control system as described in claim 1, characterized in that, The pre-electrolytic oxidation device includes: The adjustment module is used to adjust the current in real time according to the increased intensity command, thereby controlling the rate at which the strong oxidant is generated by electrolysis, so that the content of the strong oxidant and hydrogen sulfide reaches a balance.

3. The intelligent electrolytic hydrogen sulfide content control system as described in claim 1, characterized in that, The strong oxidizing agent includes hydrogen peroxide, ozone, or OH radicals.

4. A method for intelligently controlling hydrogen sulfide content via electrolysis, characterized in that, The method, executed by the system as described in any one of claims 1-3, comprises the following steps: The hydrogen sulfide monitoring and oxidation device is used to detect the hydrogen sulfide content in real time and generate a content signal. The monitoring system generates an electrolytic oxidation command based on the content signal. The hydrogen sulfide monitoring and oxidation device is controlled by the electrolytic oxidation command to perform hydrogen sulfide removal treatment.

5. A storage medium, characterized in that, It contains a series of instructions for performing the steps of the method as described in claim 4.

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