High-temperature steam combined solid oxide high-temperature electrolysis system and control method

Abstract

The invention provides a high-temperature steam combined solid oxide high-temperature electrolysis system and a control method, and belongs to the technical field of high-temperature electrolysis hydrogen production. The steam sequentially passes through the hydrogen-side heat exchanger and the hydrogen-side heat supplementing device to adjust the temperature and then is fed into the electrolytic reactor high-temperature box; nitrogen and hydrogen are fed into the electrolytic reactor high-temperature box after being subjected to temperature adjustment through the hydrogen-side heat exchanger and the hydrogen-side heat supplementing device in sequence; air sequentially passes through the air-side heat exchanger and the air-side heat supplementing device to adjust the temperature and then is fed into the electrolytic reactor high-temperature box; hydrogen generated after high-temperature steam is electrolyzed by a solid oxide high-temperature electrolytic reactor tower in the electrolytic reactor high-temperature box sequentially passes through a hydrogen side heat exchanger and a gas cooler, and part of hydrogen passes through a hydrogen circulating pump, passes through the hydrogen side heat exchanger and a hydrogen side heat supplementing device again to adjust the temperature and then is fed into the electrolytic reactor high-temperature box; and other gases generated after the high-temperature steam is electrolyzed by the solid oxide high-temperature electrolytic reactor tower in the electrolytic reactor high-temperature box are fed into the air-side discharge assembly through the air-side heat exchanger to be discharged. The modular integrated design and temperature partition arrangement are adopted, and the thermal stress problem is solved.

Description

Technical Field

[0001] This invention relates to the field of high-temperature electrolytic hydrogen production technology, and in particular to a high-temperature steam combined with solid oxide high-temperature electrolysis system and control method. Background Technology

[0002] Energy conversion and storage technologies are a key research direction for solving the problem of sustainable energy development. Solid oxide electrolyzers (SOECs), as high-temperature electrochemical energy conversion devices, can efficiently electrolyze water vapor into hydrogen and oxygen using electrical energy, typically operating at temperatures between 700-1000℃. This technology has significant advantages such as high energy conversion efficiency and reversible operation, making it particularly suitable for coupling with unstable renewable energy power generation systems. High-temperature operating conditions not only improve the kinetics of electrode reactions but also utilize waste heat to reduce energy consumption. Furthermore, the high-temperature environment is conducive to achieving thermochemical equilibrium, thereby improving electrolysis efficiency.

[0003] Current solid oxide electrolysis (SO) technology still faces numerous challenges in practical applications. Laboratory-scale research facilities generally suffer from low system integration and inadequate thermal management, making it difficult to scale up directly to industrial applications. Regarding system control, the lack of unified operating procedures and automated control strategies leads to insufficient operational stability. Particularly noteworthy is the failure of existing technologies to adequately consider the synergistic utilization of high-temperature steam in industrial settings. They lack targeted system designs for industrial processes with high-temperature steam byproducts, resulting in low energy efficiency. These technical deficiencies severely restrict the widespread application of SOE electrolysis technology in the industrial sector. Summary of the Invention

[0004] In view of this, the present invention provides a high-temperature steam-co-processed solid oxide high-temperature electrolysis system and control method, including a steam comprehensive utilization component that can directly use on-site high-temperature steam as electrolysis feedstock. The instrumentation control box enables monitoring, control, and fault interlocking protection of the high-temperature electrolysis system, and allows for the integration and automatic control of the high-temperature steam-co-processed solid oxide high-temperature electrolysis system.

[0005] Therefore, the present invention provides the following technical solution: A high-temperature steam-solid oxide high-temperature electrolysis system includes: Electrolytic reactor high-temperature box, BOP high-temperature box, gas cooling circulation assembly, steam comprehensive utilization assembly, gas supply assembly, gas emission assembly, heating control box, instrument control box, and DC power supply; The DC power supply is electrically connected to the positive and negative terminals of the electrolytic reactor in the high-temperature chamber of the electrolytic reactor; The gas cooling circulation assembly includes: a gas cooler and a hydrogen circulation pump; The BOP high-temperature chamber includes: a hydrogen-side heat exchanger, a hydrogen-side heat exchanger, an air-side heat exchanger, and an air-side heat exchanger. Gas supply components include: nitrogen supply components, hydrogen supply components, steam supply components, and air supply components; Steam is fed into the high-temperature box of the electrolytic reactor after its temperature is adjusted by passing through the hydrogen-side heat exchanger and the hydrogen-side supplementary heater in sequence. Nitrogen and hydrogen supplied by the nitrogen supply assembly and hydrogen supply assembly are successively fed into the high-temperature box of the electrolytic reactor after their temperature is adjusted by the hydrogen-side heat exchanger and hydrogen-side supplementary heat exchanger. The air supplied by the air supply assembly is sent into the high-temperature chamber of the electrolytic reactor after its temperature is adjusted by the air-side heat exchanger and the air-side supplementary heat exchanger. The hydrogen produced by electrolyzing high-temperature steam in the solid oxide high-temperature electrolytic reactor tower in the high-temperature box of the electrolytic reactor passes through the hydrogen-side heat exchanger and the gas cooler in sequence. After the hydrogen is regulated by the hydrogen circulation pump, it is sent back to the high-temperature box of the electrolytic reactor. Other gases generated after the solid oxide high-temperature electrolytic reactor tower electrolyzes high-temperature steam in the high-temperature box of the electrolytic reactor are sent to the air-side emission assembly for emission through the air-side heat exchanger.

[0006] Furthermore, the steam comprehensive utilization component includes: Steam heat exchangers and pressure regulators; The steam supply assembly provides steam that passes through a steam heat exchanger and a pressure regulator before entering the hydrogen-side heat exchanger.

[0007] Furthermore, the steam heat exchanger uses the heat from the steam to preheat the air supplied by the air supply assembly.

[0008] Furthermore, the high-temperature chamber of the electrolytic reactor and the high-temperature chamber of the BOP are located in the first temperature zone; The gas cooling circulation assembly and the steam comprehensive utilization assembly are located in the second temperature zone; The gas supply assembly and gas discharge assembly are located in the third temperature zone; The structure of the system includes: The first temperature zone, the second temperature zone, and the third temperature zone are arranged in sequence. The temperature range of the first temperature zone is 600~900℃; The second temperature zone has a temperature range of 100~400℃; The temperature range of the third temperature zone is room temperature to 80°C. Each area is designed to be sealed.

[0009] Furthermore, the heating control box is electrically connected to the high-temperature furnace of the electrolytic reactor.

[0010] Furthermore, the instrument control box is connected to the valves and measuring point signals within the system.

[0011] Furthermore, it also includes: a water vaporizer and a water supply component; The water supplied by the water supply unit is vaporized by the water vaporizer and then passes through the hydrogen-side heat exchanger and the hydrogen-side supplementary heater before entering the high-temperature box of the electrolytic reactor. The water supply component is located in the third temperature zone; The water vaporizer is located in the second temperature zone.

[0012] A control method for a high-temperature steam-solid oxide high-temperature electrolysis system includes: The system controller receives the preset hydrogen production rate. Once each temperature zone meets its temperature threshold, it calculates the required hydrogen production rate for the high-temperature electrolysis reactor based on the set production rate. The formula is as follows:

[0013] in, For the external hydrogen supply flow rate, The required hydrogen production for the high-temperature electrolysis reactor tower, To set the hydrogen production rate; The steam flow setpoint is calculated based on the required hydrogen production and steam utilization rate of the high-temperature electrolysis reactor tower. The formula is as follows:

[0014] in, For steam utilization rate; Set the steam flow rate; The hydrogen-side return flow rate is calculated based on the steam flow rate setpoint and the hydrogen-side steam ratio, expressed by the following formula:

[0015] in, This is the hydrogen-side reflux flow rate. The percentage of hydrogen-side vapor; Calculate the hydrogen circulation pump speed based on the hydrogen side return flow rate and the MAP diagram of the hydrogen circulation pump. .

[0016] Advantages and positive effects of the present invention: 1) The high-temperature electrolysis system adopts a modular integrated design with temperature zone layout, which solves the thermal stress problem, increases system reliability, and is easy to expand; 2) The high-temperature electrolysis system incorporates a steam utilization component, which allows steam to be used directly as a raw material, increasing the system's industrial application scenarios; 3) The system contains regulating components, and the temperature and gas flow rate are adjustable, increasing the system's adaptability to different operating conditions.

[0017] 4) In addition to supplying steam to the electrolytic reaction, the system provided in this application can also generate steam to supply the electrolytic reaction through external water and electricity heating, which can be flexibly adjusted.

[0018] 5) This application adjusts the speed of the hydrogen circulation pump according to the required amount of hydrogen to achieve the recycling of hydrogen. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural block diagram of the high-temperature steam combined with solid oxidation high-temperature electrolysis system of the present invention.

[0021] Figure 2 This is a process block diagram of the high-temperature steam combined with solid oxidation high-temperature electrolysis system of the present invention.

[0022] Figure 3 This invention relates to a control method for a high-temperature steam-solid oxidation high-temperature electrolysis system. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] This invention provides a high-temperature steam combined with solid oxide high-temperature electrolysis system, comprising: Electrolytic reactor high-temperature box, BOP high-temperature box, gas cooling circulation assembly, steam comprehensive utilization assembly, gas supply assembly, gas emission assembly, heating control box, instrument control box, and DC power supply.

[0026] 1) High-temperature electrolytic reactor box, including: high-temperature heating furnace and solid oxide high-temperature electrolytic reactor tower; hydrogen is produced by electrolyzing high-temperature steam through electrochemical reaction; the number of electrolytic reactors can be set according to requirements.

[0027] 2) BOP high-temperature chamber, including: hydrogen-side heat exchanger, air-side heat exchanger, hydrogen-side supplementary heat exchanger and air-side supplementary heat exchanger; realizes exhaust gas heat recovery and intake gas supplementary heat exchange. The heat exchange can adopt multi-stage heat exchange to improve efficiency, and the supplementary heat exchange can adopt electric heating method.

[0028] 3) Gas cooling circulation assembly, including: gas cooler and hydrogen circulation pump; cools and outputs hydrogen generated from high-temperature electrolysis steam; the hydrogen return flow rate in the gas cooling circulation assembly is adjustable; 4) Steam utilization components, including: steam heat exchanger and pressure regulator; the steam heat exchanger uses the heat of steam to provide air preheating for the air supply components.

[0029] 5) Gas supply components, including: hydrogen supply, nitrogen supply, air supply and steam supply components and pipelines, to bring the gas source to the high-temperature electrolysis system and maintain the gas supply required for high-temperature electrolysis; 6) Gas emission components, including: hydrogen-side emission pipeline and air-side emission pipeline, to discharge the gas generated by high-temperature electrolysis; 7) Heating control box, consisting of temperature controller and heating actuators, etc., to realize heating control of high-temperature heating furnace, reheater, etc.; 8) The instrument control box consists of a controller, a touch screen, a data acquisition module, and a control output module, which realizes the automatic operation and fault interlock protection of the high-temperature electrolysis system. 9) DC power supply, providing electrical energy for high-temperature electrolysis reaction.

[0030] The heating element of the high-temperature furnace in the high-temperature box of the electrolytic reactor is electrically connected to the temperature control device. The steam supply assembly regulates the temperature through the steam heat exchanger in the steam utilization assembly, and after the pressure regulator regulates the pressure, the steam is successively sent to the high-temperature box of the electrolytic reactor after being regulated through the hydrogen-side heat exchanger and the hydrogen-side supplementary heat exchanger. Nitrogen and hydrogen supplied by the nitrogen supply assembly and hydrogen supply assembly are successively fed into the high-temperature box of the electrolytic reactor after their temperature is adjusted by the hydrogen-side heat exchanger and hydrogen-side supplementary heat exchanger. The steam heat exchanger uses the heat of the steam to preheat the air supplied by the air supply component. The preheated air is then sent to the high-temperature box of the electrolytic reactor after its temperature is adjusted by passing through the air-side heat exchanger and the air-side supplementary heat exchanger in sequence. Hydrogen produced by electrolyzing high-temperature steam in the solid oxide high-temperature electrolytic reactor tower in the high-temperature box of the electrolytic reactor passes through a hydrogen-side heat exchanger and a gas cooler in sequence. Part of the hydrogen is then sent back to the high-temperature box of the electrolytic reactor after being conditioned by a hydrogen circulation pump through the hydrogen-side heat exchanger and a hydrogen-side supplementary heatr. Other gases produced by electrolyzing high-temperature steam in the solid oxide high-temperature electrolytic reactor tower in the high-temperature box of the electrolytic reactor are sent to the air-side emission assembly for emission through an air-side heat exchanger.

[0031] The temperature controller in the heating control box is electrically connected to the heating actuator via a cable.

[0032] The instrument control box, controller, touch screen, data acquisition module, control output module, etc. are connected by cables, and the data acquisition module is connected to the sensor signal. The positive and negative terminals of the DC power supply output are electrically connected to the positive and negative terminals of the high-temperature electrolytic reactor via cables.

[0033] Preferably, the system further includes: a water vaporizer and a water supply component; the water supplied by the water supply is vaporized by the water vaporizer and then passes through the hydrogen-side heat exchanger and the hydrogen-side supplementary heat exchanger before entering the high-temperature box of the electrolytic reactor.

[0034] Preferably, the gas supply amount in the gas supply assembly is adjustable.

[0035] Preferably, the heating control box can perform programmed temperature control.

[0036] Preferably, in addition to local operation via a touchscreen, the instrument control box has a communication interface for remote monitoring. The controller includes automatic control and fault handling functions.

[0037] Preferably, the DC power supply output power is adjustable.

[0038] Preferably, the high-temperature electrolysis system structure is designed according to temperature zones.

[0039] Example 1 like Figure 1 The diagram shown is a structural block diagram of a high-temperature steam-co-process solid oxidation high-temperature electrolysis system provided by the present invention, including: an electrolytic reactor high-temperature chamber, a BOP high-temperature chamber, a gas cooling circulation assembly, a steam comprehensive utilization assembly, a gas supply assembly, a gas emission assembly, a heating control box, an instrument control box, and a DC power supply. Through optimized temperature zoning of the high-temperature electrolysis system components, cascaded energy recovery, and highly integrated design, the high-efficiency, stable, and safe operation of the high-temperature electrolysis system is achieved.

[0040] The heating control box is electrically connected to the high-temperature chamber and furnace of the electrolytic reactor. The instrument control box is connected to the system valves and measuring point signals. The DC power supply is electrically connected to the positive and negative terminals of the electrolytic reactor.

[0041] The high-temperature electrolysis system components are arranged according to a temperature-zoned optimization principle, which reduces the difficulty of system thermal management. The high-temperature chamber of the electrolytic reactor constitutes the core reaction zone of the system (700~800℃), and houses the solid oxide electrolytic reactor. The BOP high-temperature chamber serves as the high-temperature auxiliary equipment zone (300~600℃), located close to the high-temperature chamber of the electrolytic reactor, and contains high-temperature auxiliary equipment. The gas cooling circulation components and steam comprehensive utilization components are located in the medium and low temperature zones. The gas supply components, gas emission components, heating control box, instrument control box, and DC power supply are located in the low temperature zone. The electrical equipment is divided into two parts according to function and arranged on both sides of the electrolysis system for easy operation.

[0042] The high-temperature electrolysis system adopts a tiered energy recovery strategy. This includes multi-stage heat recovery, hydrogen recycling, and comprehensive steam utilization.

[0043] Multi-stage heat recovery involves using high-temperature product gases discharged from the high-temperature chamber of the electrolytic reactor through multi-stage high-efficiency heat exchangers (such as plate or shell-and-tube types) to preferentially preheat the sensible heat of the high-temperature gases into the electrolytic reactor; hydrogen recycling involves partially returning a portion of the hydrogen-side generated gases to the hydrogen-side inlet via a circulation pump, achieving hydrogen recycling with adjustable hydrogen circulation flow rate; and comprehensive steam utilization allows steam to be used both as a raw material for high-temperature electrolysis reactions and to recover the heat supplied by the steam.

[0044] Example 2 like Figure 2 The diagram shown is a process block diagram of a high-temperature steam-co-fiber solid oxidation high-temperature electrolysis system provided by the present invention. The high-temperature electrolysis system includes: an electrolytic reactor high-temperature box, a BOP high-temperature box, a gas cooling circulation assembly, a steam comprehensive utilization assembly, a gas supply assembly, a gas emission assembly, a heating control box, an instrument control box, and a DC power supply.

[0045] Hydrogen enters the hydrogen-side gas chamber of the high-temperature electrolytic reactor via a mass flow meter, hydrogen-side heat exchanger, and hydrogen-side supplementary heat exchanger. The hydrogen-side gas from the high-temperature electrolytic reactor is split into two paths after passing through the hydrogen-side heat exchanger and hydrogen cooler. One path flows back to the hydrogen supply inlet via a hydrogen circulation pump, while the other path is supplied to downstream users as product gas. Steam is connected in parallel with the hydrogen supply inlet via a steam comprehensive utilization component and enters the hydrogen-side gas chamber of the high-temperature electrolytic reactor. Steam can also be supplied to the vaporizer via a water tank and a water pump. Air enters the air-side gas chamber of the high-temperature electrolytic reactor via a mass flow meter, air-side heat exchanger, and air-side supplementary heat exchanger. The air-side gas from the high-temperature electrolytic reactor is vented after passing through the air-side heat exchanger.

[0046] The steam utilization component includes a steam heat exchanger and a pressure regulator, which can supply steam to the high-temperature electrolytic reactor or supply steam through water vaporization.

[0047] In the high-temperature electrolysis system, the temperature of the high-temperature furnace, the gas supply flow rate, and the water supply flow rate are all adjustable, and can be adjusted according to the hydrogen production capacity.

[0048] Example 3 like Figure 3 As shown, a control method for a high-temperature steam-solid oxide high-temperature electrolysis system includes: The system control is completed by determining the speed of the hydrogen circulation pump based on the set hydrogen quantity.

[0049] 1) The hydrogen production system controller receives the preset hydrogen production rate. Once each temperature zone meets the temperature threshold, it calculates the required hydrogen production rate for the high-temperature electrolytic reactor based on the set production rate. The formula is:

[0050] in, For the external hydrogen supply flow rate, The required hydrogen production for the high-temperature electrolysis reactor tower, To set the hydrogen production rate.

[0051] 2) Calculate the steam flow rate setpoint based on the required hydrogen production and steam utilization rate of the high-temperature electrolysis reactor tower. The formula is as follows:

[0052] in, This refers to steam utilization rate.

[0053] 3) Calculate the hydrogen-side return flow rate based on the steam flow rate setpoint and the hydrogen-side steam ratio. The formula is as follows:

[0054] in, This is the hydrogen-side reflux flow rate. Set the steam flow rate. This represents the percentage of hydrogen-side vapor.

[0055] Calculate the hydrogen circulation pump speed based on the hydrogen side return flow rate and the MAP diagram of the hydrogen circulation pump. .

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-temperature steam-solid oxide high-temperature electrolysis system, characterized in that, include: Electrolytic reactor high-temperature box, BOP high-temperature box, gas cooling circulation assembly, steam comprehensive utilization assembly, gas supply assembly, gas emission assembly, heating control box, instrument control box, and DC power supply; The DC power supply is electrically connected to the positive and negative terminals of the electrolytic reactor in the high-temperature chamber of the electrolytic reactor; The gas cooling circulation assembly includes: a gas cooler and a hydrogen circulation pump; The BOP high-temperature chamber includes: a hydrogen-side heat exchanger, a hydrogen-side heat exchanger, and an air-side heat exchanger. Gas supply components include: nitrogen supply components, hydrogen supply components, steam supply components, and air supply components; Steam is fed into the high-temperature box of the electrolytic reactor after its temperature is adjusted by passing through the hydrogen-side heat exchanger and the hydrogen-side supplementary heater in sequence. Nitrogen and hydrogen supplied by the nitrogen supply assembly and hydrogen supply assembly are successively fed into the high-temperature box of the electrolytic reactor after their temperature is adjusted by the hydrogen-side heat exchanger and hydrogen-side supplementary heat exchanger. The air supplied by the air supply assembly is sent into the high-temperature chamber of the electrolytic reactor after its temperature is adjusted by the air-side heat exchanger and the air-side supplementary heat exchanger. The hydrogen produced by electrolyzing high-temperature steam in the solid oxide high-temperature electrolytic reactor tower in the high-temperature box of the electrolytic reactor passes through the hydrogen-side heat exchanger and the gas cooler in sequence. After the hydrogen is regulated by the hydrogen circulation pump, it is sent back to the high-temperature box of the electrolytic reactor. Other gases generated after the solid oxide high-temperature electrolytic reactor tower electrolyzes high-temperature steam in the high-temperature box of the electrolytic reactor are sent to the air-side emission assembly for emission through the air-side heat exchanger.

2. The system according to claim 1, characterized in that, The steam comprehensive utilization component includes: Steam heat exchangers and pressure regulators; The steam supply assembly provides steam that passes through a steam heat exchanger and a pressure regulator before entering the hydrogen-side heat exchanger.

3. The system according to claim 2, characterized in that, The steam heat exchanger uses the heat from the steam to preheat the air supplied by the air supply assembly.

4. The system according to claim 1, characterized in that, The high-temperature box of the electrolytic reactor and the high-temperature box of the BOP are located in the first temperature zone. The gas cooling circulation assembly and the steam comprehensive utilization assembly are located in the second temperature zone; The gas supply assembly and gas discharge assembly are located in the third temperature zone; The structure of the system includes: The first temperature zone, the second temperature zone, and the third temperature zone are arranged in sequence. The temperature range of the first temperature zone is 600~900℃; The second temperature zone has a temperature range of 100~400℃; The temperature range of the third temperature zone is room temperature to 80°C. Each area is designed to be sealed.

5. The system according to claim 1, characterized in that, The heating control box is electrically connected to the high-temperature furnace of the electrolytic reactor.

6. The system according to claim 1, characterized in that, The instrument control box is connected to the valves and measuring point signals within the system.

7. The system according to claim 1, characterized in that, Also includes: Water vaporizer and water supply components; The water supplied by the water supply unit is vaporized by the water vaporizer and then passes through the hydrogen-side heat exchanger and the hydrogen-side supplementary heater before entering the high-temperature box of the electrolytic reactor. The water supply component is located in the third temperature zone; The water vaporizer is located in the second temperature zone.

8. A control method for a high-temperature steam-solid oxide high-temperature electrolysis system according to any one of claims 1 to 7, characterized in that, include: The system controller receives the preset hydrogen production rate. Once each temperature zone meets its temperature threshold, it calculates the required hydrogen production rate for the high-temperature electrolysis reactor based on the set production rate. The formula is as follows: in, For the external hydrogen supply flow rate, The required hydrogen production for the high-temperature electrolysis reactor tower, To set the hydrogen production rate; The steam flow setpoint is calculated based on the required hydrogen production and steam utilization rate of the high-temperature electrolysis reactor tower. The formula is as follows: in, For steam utilization rate; Set the steam flow rate; The hydrogen-side return flow rate is calculated based on the steam flow rate setpoint and the hydrogen-side steam ratio, expressed by the following formula: in, This is the hydrogen-side reflux flow rate. The percentage of hydrogen-side vapor; Calculate the hydrogen circulation pump speed based on the hydrogen side return flow rate and the MAP diagram of the hydrogen circulation pump. .

Images