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A device and method for measuring hydrate growth rate and effective volume based on micro-focus X-ray CT

A technology of effective volume and growth rate, which is applied to the use of radiation for material analysis, etc., can solve problems such as the difficulty in accurately calculating the hydrate formation rate and effective volume, and the inability to observe the distribution of spherical hydrate substances, and achieve the effect of deepening understanding

Active Publication Date: 2018-12-21
DALIAN UNIV OF TECH
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Problems solved by technology

[0003] However, the current measurement of hydrate growth rate and effective volume is still at the surface stage with optical microscopy as the main means, and the distribution of substances inside the spherical hydrate cannot be observed, so it is difficult to accurately calculate the hydrate formation rate and effective volume.

Method used

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  • A device and method for measuring hydrate growth rate and effective volume based on micro-focus X-ray CT
  • A device and method for measuring hydrate growth rate and effective volume based on micro-focus X-ray CT
  • A device and method for measuring hydrate growth rate and effective volume based on micro-focus X-ray CT

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Embodiment

[0025] A method for measuring hydrate growth rate and effective volume based on micro-focus X-ray CT, the steps are as follows

[0026] Step 1, turn on the computer 2 and the data acquisition instrument 1, and set the operating parameters of the micro-focus X-ray CT3;

[0027] Step 2, open the second valve 10b and the first valve 10a, open the refrigerating circulating water bath 9, and set the temperature of the refrigerating circulating water bath 9 below the equilibrium temperature of the hydration agent corresponding to the atmospheric pressure;

[0028] Step 3, open the sixth valve 10f and the second injection pump 13b, set the flow rate of the second injection pump 13b, inject the hydration agent in the hydration agent tank 15 into the second injection pump 13b, close the fifth valve 10f, and open the third injection pump 13b. Valve 10c, inject hydration agent into the inner casing 20 of the reaction kettle, close the third valve 10c and the second injection pump 13b;

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Abstract

The invention relates to a device and a method for measuring the growth speed and the effective volume of hydrate on the basis of microfocus X ray CT and belongs to the field of new energy and new materials. The device comprises a microfocus X ray CT scanning system, a temperature control and detection system, a reactant addition system and a reaction kettle. The microfocus X ray CT is used for dynamically shooting the hydrate generation process of a single waterdrop, the growth speed and the effective volume of the hydrate can be accurately calculated, understanding on the hydrate generation process is deepened, and important guiding significance is produced for hydrate development, hydrate flowing safety and a hydrate application technology.

Description

technical field [0001] The invention relates to a device and method for measuring hydrate growth rate and effective volume based on micro-focus X-ray CT, belonging to the field of new energy and new materials. Background technique [0002] With the rapid development of world industry, the demand and consumption of traditional fossil energy have increased dramatically, and the problem of energy shortage has become one of the problems that every country has to face. Due to its huge reserves and high energy density, hydrates have attracted extensive attention from all over the world. Japan and other countries have successively carried out on-site trial mining of hydrates, but due to various limiting factors, the mining results are not satisfactory. The decomposition process of hydrate production is essentially the reverse process of hydrate formation; on the other hand, in oil and gas pipelines, the formation of hydrates often causes pipeline blockage and safety accidents. In...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/04
CPCG01N23/04
Inventor 宋永臣董宏生赵佳飞刘卫国杨明军刘瑜冯博洋李凌志张毅凌铮王大勇
Owner DALIAN UNIV OF TECH