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Device and method for monitoring change in temperature field characteristics in gas hydration separation reaction process

A technology of hydration separation and temperature field, which is applied in the coal field, can solve the problems of low utilization rate and low gas utilization, and achieve the effects of low cost, convenient control and strong reliability

Inactive Publication Date: 2016-06-01
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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AI Technical Summary

Problems solved by technology

[0003] At present, due to the limitations of the existing technology and equipment on the utilization of low-concentration gas, the gas utilization is relatively small and the utilization rate is low. The gas hydration and solidification separation method can achieve the purpose of effective separation and purification of low-concentration gas. This technology has separation conditions The gas hydration solidification process is limited by the influence of heat and mass transfer conditions. Therefore, the temperature field distribution and heat transfer control of the gas hydration separation process are the keys to the gas hydration solidification separation technology. At present, there is no temperature monitoring method and temperature monitoring device in the gas hydration separation process. Therefore, a device and method for monitoring the temperature field characteristic changes in the gas hydration separation reaction process has been invented, which can control the temperature field distribution and operating temperature of the gas hydration separation process. The interaction of influencing factors such as pressure, hydration separation rate, and hydrate purity provides a new solution for the utilization of gas

Method used

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  • Device and method for monitoring change in temperature field characteristics in gas hydration separation reaction process

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specific Embodiment approach 1

[0027] Specific implementation mode 1, refer to figure 1 Describe this embodiment in detail. A device for monitoring temperature field characteristic changes in the gas hydration separation process described in this embodiment includes a gas storage tank 1, a gas opening and closing valve 2, an air compressor 3, and a gas booster pump 4 , gas drying cylinder 5, intake stop valve 6, pressure sensor 7, high and low temperature controller 8, array temperature sensor 9, data collector 10, industrial computer 11 and visual reactor 12;

[0028] The gas storage tank 1 is used to store gas; the air compressor 3 and the gas booster pump 4 are used to press the gas in the gas storage tank 1 into the visual reactor 12;

[0029] The visible reactor 12 is used to place the solution and provide a place for the gas and the solution to react; the top of the visible reactor 12 is provided with an air inlet 14;

[0030] The gas opening stop valve 2 is arranged between the gas storage tank 1 an...

specific Embodiment approach 2

[0041] Specific embodiment 2. This specific embodiment is a further description of a device for monitoring temperature field characteristic changes in the process of gas hydration reaction described in specific embodiment 1. In this embodiment, the top of the visible reactor 12 is provided with Visual window 13.

[0042] In this embodiment, the staff observes the reaction situation in the visible reactor 12 through the visible window 13 .

specific Embodiment approach 3

[0043] Specific Embodiment 3. This specific embodiment is a further description of a device for monitoring temperature field characteristic changes in the process of gas hydration separation described in specific embodiment 2. In this embodiment, the solution is composed of a kinetic promoter and a thermodynamic promoter agent composition.

[0044] In this embodiment, the data show that the kinetic accelerator can shorten the induction period of hydrate formation and increase the rate of gas hydration separation, and the thermodynamic accelerator can improve the temperature and pressure conditions of gas hydration separation, enabling the gas hydration separation process to be carried out under milder conditions .

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Abstract

The invention relates to a device and method for monitoring change in temperature field characteristics in a gas hydration separation reaction process and relates to the field of coal. The invention aims to meet the requirements for the monitoring method and device for heat and mass transfer in the gas hydration separation reaction process. An application method of a multilayer three-dimensional distribution temperature sensor in a gas hydration separation test comprises the following steps: pressing gas into a visual reaction kettle by utilizing a gas pressurization system; fully contacting with a solution composed of dynamic and thermodynamic accelerants or pure water in the visual reaction kettle; enabling methane in gas to form hydrate under a certain temperature condition; and monitoring the temperature change in different levels of the liquid in the forming process of the hydrate by utilizing the multilayer three-dimensional distribution temperature sensor in the visual reaction kettle. The method provided by the invention is suitable for monitoring the temperature change in other occasions in the field of the hydrate.

Description

technical field [0001] The invention relates to the field of coal. Background technique [0002] Coal mine gas is CH 4 As the main hydrocarbon mixed gas, it is produced in the process of coal formation and metamorphism, CH 4 It is also a gas with a very high greenhouse effect, and its greenhouse effect is higher than that of CO 2 More than 20 times that of CO, the damage to the ozone layer is CO 2 In coal mine production, a large amount of gas is evacuated through mine ventilation, which has a serious impact on the atmospheric environment. At the same time, CH 4 Gas is also a high-quality, efficient, clean and safe new energy source. Compared with coal combustion, the amount of ash produced by gas combustion is 6.8×10 -3 , the amount of sulfur dioxide released is 1.4×10 of coal combustion -3 , the amount of carbon dioxide released is 0.6 of that of coal combustion. CH 4 It can be used as industrial fuel, chemical raw material and domestic fuel. Therefore, rational ut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20
CPCG01N25/20
Inventor 吴强张保勇张强张赛
Owner HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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