CN114324444A - Device for determining high-temperature reaction of coke and water vapor - Google Patents

Device for determining high-temperature reaction of coke and water vapor Download PDF

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Publication number
CN114324444A
CN114324444A CN202111465824.2A CN202111465824A CN114324444A CN 114324444 A CN114324444 A CN 114324444A CN 202111465824 A CN202111465824 A CN 202111465824A CN 114324444 A CN114324444 A CN 114324444A
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reaction tube
coke
tube
flange
water vapor
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CN202111465824.2A
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Inventor
李超
王明登
白金锋
郑亚杰
钟祥云
封一飞
刘洋
陈星星
张雅茹
范相宇
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Acre Coking and Refractory Engineering Consulting Corp MCC
University of Science and Technology Liaoning USTL
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Acre Coking and Refractory Engineering Consulting Corp MCC
University of Science and Technology Liaoning USTL
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Priority to CN202111465824.2A priority Critical patent/CN114324444A/en
Publication of CN114324444A publication Critical patent/CN114324444A/en
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Abstract

The invention relates to a device for measuring high-temperature reaction of coke and water vapor, which consists of a thermal weight loss detection unit, a water supply unit, a residual moisture measurement unit, a tail gas analysis unit and a process control and data recording unit; wherein the thermal weight loss detection unit comprises a high-temperature electric furnace, an electronic balance, a reaction tube and a thermocouple; the water supply unit comprises a micro metering pump; the residual moisture measuring unit comprises a moisture absorption pipe and a horizontal detection balance; the tail gas analysis unit comprises a tail gas analyzer; the process control and data recording unit comprises a computer; the method is used for measuring the melting loss reaction mechanism of the coke and the water vapor under the condition of simulating the hydrogen-rich blast furnace, the water vapor and the coke are uniformly reacted at high temperature through the accurate control of the generation amount of the water vapor and the uniform diffusion of the water vapor, the accuracy of data is ensured, the amount of unreacted water vapor can be monitored in real time, and therefore the reaction process of the coke and the water vapor is comprehensively interpreted.

Description

Device for determining high-temperature reaction of coke and water vapor
Technical Field
The invention relates to the technical field of coke thermal state performance research, in particular to a device for measuring high-temperature reaction of coke and water vapor.
Background
With carbon peaking and carbon neutralization becoming the main melody of global industrial development, the traditional development mode of the steel industry must be adjusted, and the bottleneck problem in the green low-carbon development of the steel industry is fundamentally solved from the source through the innovation of energy structure, process structure and material technology. In the last 30 years, the comprehensive energy consumption per ton of steel is reduced by 50% by improving energy efficiency and popularizing, applying and recycling new processes and new technologies in the global steel industry. At present, the energy consumption of the global iron and steel industry accounts for about 8 percent of the world, and the carbon emission accounts for 7 percent of the world. In the future, the steel industry is the best way to realize low-carbon and even zero-carbon emission no matter the energy structure innovation or the process structure innovation is carried out or the hydrogen energy application is developed. Particularly, the innovation and the application of the hydrogen metallurgy technology bring revolutionary changes to the traditional ferrous metallurgy technology, so that the steel production gets rid of absolute dependence on fossil energy, and the problem of carbon emission is solved from the source. Aiming at the characteristics of the long process in the production of Chinese steel, the source carbon reduction of the blast furnace is realized, and the hydrogen-rich blast furnace smelting technology comprising blast furnace hydrogen-rich injection, furnace top gas circulation, high-strength high-reactivity coke preparation and the like is a main and effective measure, and wide technical research is carried out worldwide.
The existing experiment for researching the hot-state performance of the coke is generally carried out by adopting a reactivity and post-reaction strength experimental device and a corresponding method specified by the national standard GB/T4000-2008, and the hot-state performance of the coke can be basically reflected by the coke thermal reactivity (CRI) and post-reaction strength (CSR) data obtained by the experiment. However, with the continuous development of coking technology and blast furnace operation technology, further studies on the actual state of coke under the internal conditions of the blast furnace are required. Therefore, it is necessary to develop experimental analysis and evaluation studies in a hydrogen-rich atmosphere and to develop an analysis and evaluation method for obtaining high-strength and high-reactivity coke.
The invention improves the experimental device aiming at the special physical state of water, the accurate and stable reaction of water entering the reactor and the coke sample and the real-time online detection of water vapor at the outlet. The temperature rise condition of coke in a hydrogen-rich blast furnace is simulated by adopting a high-temperature electric furnace, the process of melting loss reaction of the coke and water vapor is researched by accurately controlling the temperature and the generation amount of the water vapor, the property of the furnace charge after the hydrogen-rich operation of the blast furnace and the temperature change rule of a pre-reduction area in the blast furnace can be determined by experiments, and the detection result has important significance for guiding the production and evaluation of the coke.
Disclosure of Invention
The invention provides a device for measuring high-temperature reaction of coke and water vapor, which is used for measuring a melting loss reaction mechanism of the coke and the water vapor under the condition of simulating a hydrogen-rich blast furnace, enabling the water vapor and the coke to uniformly react at high temperature through the accurate control of the generation amount of the water vapor and the uniform diffusion of the water vapor, ensuring the accuracy of data, and monitoring the amount of unreacted water vapor in real time, thereby interpreting the reaction process of the coke and the water vapor in an all-round way.
In order to achieve the purpose, the invention adopts the following technical scheme:
a device for measuring high-temperature reaction of coke and water vapor comprises a thermal weight loss detection unit, a water supply unit, a residual moisture measuring unit, a tail gas analysis unit and a process control and data recording unit; wherein the thermal weight loss detection unit comprises a high-temperature electric furnace, an electronic balance, a reaction tube and a thermocouple; the water supply unit comprises a micro metering pump; the residual moisture measuring unit comprises a moisture absorption pipe and a horizontal detection balance; the tail gas analysis unit comprises a tail gas analyzer; the process control and data recording unit comprises a computer; the reaction tube is suspended in a hearth of the high-temperature electric furnace through an electronic balance and consists of an inner reaction tube and an outer reaction tube, and a coke sample is placed in the inner reaction tube; a water vaporization uniform distribution structure is arranged in an annular cavity between the inner reaction tube and the outer reaction tube, and a bottom plate of the inner reaction tube is a porous gas distribution plate; the top of the annular cavity is sealed by a sealing flange and fixedly connected with the inner reaction tube and the outer reaction tube, the top opening of the inner reaction tube is sealed by a sealing plug, and the temperature measuring end of the thermocouple penetrates through the sealing plug and extends into the inner reaction tube; a water inlet is arranged on one side of the upper part of the outer reaction tube, a gas phase outlet is arranged on the top of the inner reaction tube, the water inlet is connected with a water delivery pipeline, and a trace metering pump is arranged on the water delivery pipeline; the gas phase outlet is sequentially connected with a moisture absorption tube and a tail gas analyzer through a gas path pipeline, and the bottom of the moisture absorption tube is provided with a moisture detection balance; the control end of the high-temperature electric furnace, the signal output end of the thermocouple, the control end of the micro-metering pump, the data output end of the electronic balance, the data output end of the moisture detection balance and the data output end of the tail gas analyzer are respectively connected with the computer.
The electronic balance is fixedly arranged above the high-temperature electric furnace through a support, a hook is arranged at the bottom of the electronic balance, and the sealing flange is connected with the hook through a hanging frame.
The inner reaction tube and the outer reaction tube are both made of corundum materials; the water vaporization uniform distribution structure consists of corundum balls filled in an annular cavity between the inner reaction tube and the outer reaction tube.
The corundum balls are arranged in a layered mode, the height of each layer of corundum balls is 30-50 mm, and the grain sizes of the corundum balls in each layer are different.
The spherical jade balls are 3mm and 5mm in 2 particle sizes, and a corundum ball layer consisting of the 3 mm-particle-size corundum balls and a corundum ball layer consisting of the 5 mm-particle-size corundum balls are alternately arranged.
The top of the inner reaction tube is higher than that of the outer reaction tube, an inner tube flange is arranged at the top of the inner reaction tube, and an outer tube flange is arranged at the top of the outer reaction tube; the sealing flange consists of an upper flange, a lower flange and a connecting section for connecting the upper flange with the lower flange, the upper flange is connected with the inner pipe flange through bolts, and the lower flange is connected with the outer pipe flange through bolts; sealing elements are respectively arranged between the sealing flange and the inner reaction tube and between the sealing flange and the outer reaction tube; the sealing member is 2 high temperature resistant sealing rings arranged at intervals.
The upper part of the connecting section is matched with the inner reaction tube, and the lower part of the connecting section is matched with the outer reaction tube; an annular space is arranged between the lower part of the connecting section above the outer reaction tube and the inner reaction tube, a water inlet is arranged at one side of the sealing flange corresponding to the annular space, and a water inlet pipe is arranged at the water inlet and is connected with a water delivery pipeline.
The gas phase outlet is arranged on a sealing plug at the top of the inner reaction tube, a gas phase outlet pipe is arranged at the gas phase outlet and connected with a gas path pipeline, and the gas phase outlet pipe is a 90-degree bent pipe; and connecting hoses are respectively arranged on the gas path pipeline between the gas phase outlet pipe and the moisture absorption pipe and on the gas path pipeline between the moisture absorption pipe and the tail gas analyzer.
The micro metering pump is a peristaltic pump or a mass flow meter; the moisture absorption tube is a U-shaped glass tube, and anhydrous calcium chloride particles are filled in the moisture absorption tube.
The tail gas analyzer is an infrared gas analyzer or an online gas chromatographic analyzer.
Compared with the prior art, the invention has the beneficial effects that:
1) the water vapor uniform distribution structure is arranged between the inner reaction tube and the outer reaction tube, so that the generation amount of water vapor is accurately controlled, and meanwhile, the water vapor is uniformly diffused, so that the water vapor and the coke are uniformly reacted at high temperature;
2) the characterization of thermal state properties (including coke thermal reactivity CRI and post-reaction strength CSR) of a coke sample after reaction can be carried out, and the properties (including XRD test, Raman spectrum, SEM-EDS scanning electron microscope, FTIR infrared analysis, apparent porosity and the like) before and after the coke reaction are analyzed; the melting loss reaction mechanism of the coke under the condition of the hydrogen-rich blast furnace is researched, analyzed and evaluated.
3) The amount of unreacted steam can be monitored in real time, so that the reaction process of coke and steam can be comprehensively interpreted.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for measuring a high-temperature reaction of coke and steam according to the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of a portion B in fig. 1.
FIG. 4 is a graph showing the relationship between the thermal weight loss of the coke reaction and the reaction time under the non-isothermal solution loss reaction conditions measured by the apparatus of the present invention.
FIG. 5 is a graph of carbon conversion of coke versus reaction time for non-isothermal solvent loss reaction conditions measured using the apparatus of the present invention.
FIG. 6 is a graph of the thermal reactivity of coke measured under simulated hydrogen-rich blast furnace conditions using the apparatus of the present invention.
In the figure: 1. electronic balance 2, thermocouple 3, sealing flange 4, micro-metering pump 5, coke sample 6, water vaporization uniform distribution structure 7, tail gas analyzer 8, moisture absorption tube 9, connecting hose 10, moisture detection balance 11, outer reaction tube 12, inner reaction tube 13, porous gas distribution plate 14, high temperature electric furnace 15, sealing plug 16, bolt 17, high temperature resistant sealing ring 18, water inlet tube 19, gas phase outlet tube
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 1-3, the device for determining the high-temperature reaction of coke and water vapor according to the present invention comprises a thermal weight loss detection unit, a water supply unit, a residual moisture determination unit, a tail gas analysis unit, and a process control and data recording unit; the thermal weight loss detection unit comprises a high-temperature electric furnace 14, an electronic balance 1, a reaction tube and a thermocouple 2; the water supply unit includes a micro-metering pump 4; the residual moisture measuring unit comprises a moisture absorbing pipe 8 and a horizontal detection balance 10; the tail gas analysis unit comprises a tail gas analyzer 7; the process control and data recording unit comprises a computer; the reaction tube is suspended in a hearth of a high-temperature electric furnace 14 through an electronic balance 1, the reaction tube consists of an inner reaction tube 12 and an outer reaction tube 11, and a coke sample 5 is placed in the inner reaction tube 12; a water vaporization uniform distribution structure 6 is arranged in an annular cavity between the inner reaction tube 12 and the outer reaction tube 11, and a bottom plate of the inner reaction tube 12 is a porous gas distribution plate 13; the top of the annular cavity is sealed by a sealing flange 3 and realizes the fixed connection of an inner reaction tube 12 and an outer reaction tube 11, the top opening of an inner reaction tube 13 is sealed by a sealing plug 15, and the temperature measuring end of a thermocouple 2 passes through the sealing plug 15 and extends into the inner reaction tube 12; a water inlet is arranged on one side of the upper part of the outer reaction tube 11, a gas phase outlet is arranged on the top of the inner reaction tube 12, the water inlet is connected with a water delivery pipeline, and a micro-metering pump 4 is arranged on the water delivery pipeline; the gas phase outlet is sequentially connected with a moisture absorption pipe 8 and a tail gas analyzer 7 through a gas pipeline, and the bottom of the moisture absorption pipe 8 is provided with a moisture detection balance 10; the control end of the high-temperature electric furnace 14, the signal output end of the thermocouple 2, the control end of the micro-metering pump 4, the data output end of the electronic balance 1, the data output end of the moisture detection balance 10 and the data output end of the tail gas analyzer 7 are respectively connected with a computer.
The electronic balance 1 is fixedly arranged above the high-temperature electric furnace 14 through a support, a hook is arranged at the bottom of the electronic balance 1, and the sealing flange 3 is connected with the hook through a hanging frame.
The inner reaction tube 12 and the outer reaction tube 11 are both made of corundum materials; the water vaporization uniform distribution structure 6 is composed of corundum balls filled in an annular cavity between the inner reaction tube 12 and the outer reaction tube 11.
The corundum balls are arranged in a layered mode, the height of each layer of corundum balls is 30-50 mm, and the grain sizes of the corundum balls in each layer are different.
The spherical jade balls are 3mm and 5mm in 2 particle sizes, and a corundum ball layer consisting of the 3 mm-particle-size corundum balls and a corundum ball layer consisting of the 5 mm-particle-size corundum balls are alternately arranged.
The top of the inner reaction tube 12 is higher than the top of the outer reaction tube 11, the top of the inner reaction tube 12 is provided with an inner tube flange, and the top of the outer reaction tube 11 is provided with an outer tube flange; the sealing flange 3 consists of an upper flange, a lower flange and a connecting section for connecting the upper flange with the lower flange, the upper flange is connected with the inner pipe flange through a bolt 16, and the lower flange is connected with the outer pipe flange through a bolt 16; sealing elements are respectively arranged between the sealing flange and the inner reaction tube 12 and between the sealing flange and the outer reaction tube 11; the sealing element is 2 high temperature resistant sealing rings 17 arranged at intervals.
The upper part of the connecting section is matched with the inner reaction tube 12, and the lower part of the connecting section is matched with the outer reaction tube 11; an annular space is arranged between the lower part of the connecting section above the outer reaction tube 11 and the inner reaction tube 12, a water inlet is arranged at one side of the sealing flange 3 corresponding to the annular space, and a water inlet pipe 18 is arranged at the water inlet and is connected with a water pipeline.
The gas phase outlet is arranged on a sealing plug 15 at the top of the inner reaction tube 12, a gas phase outlet pipe 19 is arranged at the gas phase outlet and connected with a gas path pipeline, and the gas phase outlet pipe 19 is a 90-degree bent pipe; and connecting hoses 9 are respectively arranged on the gas path pipeline between the gas phase outlet pipe 19 and the moisture absorption pipe 8 and the gas path pipeline between the moisture absorption pipe 8 and the tail gas analyzer 7.
The micro-metering pump 4 is a peristaltic pump or a mass flow meter; the moisture absorption tube 8 is a U-shaped glass tube, and anhydrous calcium chloride particles are filled inside the tube.
The tail gas analyzer 7 is an infrared gas analyzer or an online gas chromatograph.
The invention relates to a device for measuring high-temperature reaction of coke and water vapor, which mainly comprises a thermal weight loss detection unit, a water supply unit, a residual moisture measurement unit, a tail gas analysis unit and a process control and data recording unit. The water vapor is quantitatively added into the reaction tube through the micro-metering pump, the vaporization and the primary uniform distribution of water are realized through the water vaporization uniform distribution structure between the inner reaction tube and the outer reaction tube, the secondary homogenization is realized through the porous gas distribution plate at the bottom of the inner reaction tube, and the homogenized water vapor is uniformly diffused into the inner reaction tube to be subjected to melting loss reaction with the coke sample. Through the accurate control of the steam generation amount and the uniform diffusion of the steam, the steam and the coke sample are uniformly reacted, and the accuracy of data is ensured. And accurately monitoring the excessive moisture after the reaction in real time through a residual moisture measuring unit and a tail gas analysis unit.
The high-temperature electric furnace is an electric furnace with the heating temperature of more than 1600 ℃.
The top of the sealing flange is provided with a hanging frame, the reaction tube is hung below the electronic balance through a hook and is arranged in a hearth of the high-temperature electric furnace, and a coke sample is ensured to be in a constant-temperature area. The sealing flange is used for connecting and sealing the inner reaction tube and the outer reaction tube, a water inlet is arranged on one side of the sealing flange, a gas phase outlet is arranged on the sealing plug, and the thermocouple penetrates through the sealing plug and then is inserted into the surface of the coke sample.
The water content measuring unit and the water supply unit are respectively connected with the reactor through pipelines, and the tail gas analysis unit is arranged at the downstream of the water content measuring unit and is responsible for detecting the content of gases such as hydrogen, carbon monoxide and the like in the tail gas after the water content is removed.
The electronic balance is connected with a computer, and the weight of the coke sample is recorded in real time by the computer. The inner reaction tube and the outer reaction tube are made of corundum, and a ring-shaped cavity between the inner reaction tube and the outer reaction tube is filled with corundum balls and is used for vaporizing water and enabling water vapor to be uniformly distributed. The bottom of the inner reaction tube is provided with a porous gas distribution plate, a plurality of through holes are uniformly formed in the porous gas distribution plate, and the diameter of each through hole is less than 3 mm; the coke sample was loaded while further homogenizing the incoming water vapor. The corundum balls filled in the annular cavity are divided into two diameter specifications of 3mm and 5mm, the corundum balls with the two diameter specifications are filled in a layered mode, and the height of each layer of corundum balls is 30 mm-50 mm.
The moisture absorption tube is connected with the gas phase outlet pipe and the tail gas analyzer through a hose, the moisture absorption tube is arranged on a moisture determination balance, and the moisture determination balance is connected with a computer. In the invention, the moisture absorption tube can be a U-shaped glass tube or any other sealing tube which does not react with gas in the tail gas, anhydrous calcium chloride particles are filled in the sealing tube for absorbing moisture in the tail gas, and the weight of the moisture absorption tube is recorded in real time by a computer.
The micro-metering pump in the water supply unit may be selected from, but not limited to, a peristaltic pump, a mass flow meter, and the like.
The tail gas analyzer can be selected from, but not limited to, an infrared gas analyzer, an online gas chromatographic analyzer and other online gas detection devices.
The diagram of the relationship between the thermal weight loss of the coke reaction and the reaction time under the non-isothermal solution loss reaction condition measured by the device is shown in FIG. 4; FIG. 5 is a graph showing the carbon conversion of coke versus reaction time under the non-isothermal solution loss reaction conditions measured; the thermal state reactivity curve of the coke measured under the condition of simulating a hydrogen-rich blast furnace by using the device is shown in figure 6.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. A device for measuring high-temperature reaction of coke and water vapor is characterized by comprising a thermal weight loss detection unit, a water supply unit, a residual moisture measurement unit, a tail gas analysis unit and a process control and data recording unit; wherein the thermal weight loss detection unit comprises a high-temperature electric furnace, an electronic balance, a reaction tube and a thermocouple; the water supply unit comprises a micro metering pump; the residual moisture measuring unit comprises a moisture absorption pipe and a horizontal detection balance; the tail gas analysis unit comprises a tail gas analyzer; the process control and data recording unit comprises a computer; the reaction tube is suspended in a hearth of the high-temperature electric furnace through an electronic balance and consists of an inner reaction tube and an outer reaction tube, and a coke sample is placed in the inner reaction tube; a water vaporization uniform distribution structure is arranged in an annular cavity between the inner reaction tube and the outer reaction tube, and a bottom plate of the inner reaction tube is a porous gas distribution plate; the top of the annular cavity is sealed by a sealing flange and fixedly connected with the inner reaction tube and the outer reaction tube, the top opening of the inner reaction tube is sealed by a sealing plug, and the temperature measuring end of the thermocouple penetrates through the sealing plug and extends into the inner reaction tube; a water inlet is arranged on one side of the upper part of the outer reaction tube, a gas phase outlet is arranged on the top of the inner reaction tube, the water inlet is connected with a water delivery pipeline, and a trace metering pump is arranged on the water delivery pipeline; the gas phase outlet is sequentially connected with a moisture absorption tube and a tail gas analyzer through a gas path pipeline, and the bottom of the moisture absorption tube is provided with a moisture detection balance; the control end of the high-temperature electric furnace, the signal output end of the thermocouple, the control end of the micro-metering pump, the data output end of the electronic balance, the data output end of the moisture detection balance and the data output end of the tail gas analyzer are respectively connected with the computer.
2. The device for determining the high-temperature reaction of the coke and the water vapor as claimed in claim 1, wherein the electronic balance is fixedly arranged above the high-temperature electric furnace through a support, a hook is arranged at the bottom of the electronic balance, and the sealing flange is connected with the hook through a hanging frame.
3. The apparatus for determining the high temperature reaction of coke and steam as claimed in claim 1, wherein the inner reaction tube and the outer reaction tube are both made of corundum material; the water vaporization uniform distribution structure consists of corundum balls filled in an annular cavity between the inner reaction tube and the outer reaction tube.
4. The apparatus for determining the high-temperature reaction of coke and steam as claimed in claim 3, wherein the corundum balls are arranged in layers, the height of each layer of corundum balls is 30-50 mm, and the composition particle size of each layer of corundum balls is different.
5. The apparatus for determining the high temperature reaction of coke and steam as claimed in claim 4, wherein the spherical jade balls are divided into 3mm and 5mm 2 kinds of particle sizes, and the corundum ball layer consisting of 3mm diameter corundum balls and the corundum ball layer consisting of 5mm diameter corundum balls are alternately arranged.
6. The apparatus for determining high temperature reaction of coke and steam as claimed in claim 1, wherein the top of the inner reaction tube is higher than the top of the outer reaction tube, the top of the inner reaction tube is provided with an inner tube flange, and the top of the outer reaction tube is provided with an outer tube flange; the sealing flange consists of an upper flange, a lower flange and a connecting section for connecting the upper flange with the lower flange, the upper flange is connected with the inner pipe flange through bolts, and the lower flange is connected with the outer pipe flange through bolts; sealing elements are respectively arranged between the sealing flange and the inner reaction tube and between the sealing flange and the outer reaction tube; the sealing member is 2 high temperature resistant sealing rings arranged at intervals.
7. The apparatus for determining the high temperature reaction of coke and steam as claimed in claim 6, wherein the upper part of the connecting section is fitted with the inner reaction tube and the lower part of the connecting section is fitted with the outer reaction tube; an annular space is arranged between the lower part of the connecting section above the outer reaction tube and the inner reaction tube, a water inlet is arranged at one side of the sealing flange corresponding to the annular space, and a water inlet pipe is arranged at the water inlet and is connected with a water delivery pipeline.
8. The apparatus for determining high temperature reaction of coke and steam as claimed in claim 1, wherein the gas phase outlet is arranged on a sealing plug at the top of the inner reaction tube, and a gas phase outlet tube is arranged at the gas phase outlet and connected with the gas path pipeline, and the gas phase outlet tube is a 90 ° elbow; and connecting hoses are respectively arranged on the gas path pipeline between the gas phase outlet pipe and the moisture absorption pipe and on the gas path pipeline between the moisture absorption pipe and the tail gas analyzer.
9. The device for measuring the high-temperature reaction of the coke and the water vapor as claimed in claim 1, wherein the micro metering pump is a peristaltic pump or a mass flow meter; the moisture absorption tube is a U-shaped glass tube, and anhydrous calcium chloride particles are filled in the moisture absorption tube.
10. The apparatus for determining the high temperature reaction of coke and water vapor as claimed in claim 1, wherein the tail gas analyzer is an infrared gas analyzer or an on-line gas chromatograph.
CN202111465824.2A 2021-12-03 2021-12-03 Device for determining high-temperature reaction of coke and water vapor Pending CN114324444A (en)

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