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Device and method used for measuring content of oil and/or liquid water in sample

A water content and sample technology, which is applied to the oil and/or water content in semi-solid samples, and the determination of solid state in the petroleum industry or food industry. The improved Dean-Stark device field can solve the problem of poor accuracy and parallelism of oil content measurement data, etc. problems, to achieve the effect of accurate and reliable measurement results, low cost, improved accuracy and parallelism

Active Publication Date: 2013-12-25
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since the liquid always follows the principle of least resistance (that is, follows the principle of the shortest flow of a straight line between two points) when the liquid flows downward, the oil in the oily sample, such as oily sludge, cannot be extracted completely; in addition, to ensure the extraction The solvent flowing into the tube flows out quickly for the next extraction, and the extraction tube is suspended in the extraction bottle, which is also unfavorable for the complete extraction of oil (completely relying on flushing). The direct consequence of these problems is the accuracy of the oil content measurement data. Poor sex and parallelism

Method used

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  • Device and method used for measuring content of oil and/or liquid water in sample
  • Device and method used for measuring content of oil and/or liquid water in sample
  • Device and method used for measuring content of oil and/or liquid water in sample

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Such as figure 2 As shown, the device for measuring oil and / or water content in the sample provided by the present embodiment mainly includes:

[0039] Dean-Stark water separator 1, the main body of the water separator is a vertical columnar glass tube, the top is connected to the bottom of the reflux condenser 2, and the bottom is connected to the water well 11 with metering scale; A branch pipe obliquely protrudes from the upper part of the columnar glass tube as a solvent reflux pipe. The branch pipe forms an acute angle with the wall below the columnar glass tube. in the mouth.

[0040] The extraction device part mainly uses a solvent to extract the sample and makes the solvent and water vapor enter the Dean-Stark water separator to separate water, so as to measure the water content of the sample. The extraction device mainly includes:

[0041] An extraction bottle 3 for accommodating the extraction solvent;

[0042] An extraction tube 4 placed in the extraction...

Embodiment 2

[0062] Taking oily sludge A as the sample to be tested, the device and method of Example 1 were used to extract and measure the oil and water content of the oily sludge, and the extracted oily sludge sample was dried at 115°C to make Toluene volatilizes and weighs the sample after reaching constant weight, and calculates the content of oil and water. And with the use of figure 1 The measurement results of the "Dean-Stark improved device" shown in the prior art are compared, and the measurement results are listed in the following table.

[0063] Parallel analysis of the determination results of oil content (wet basis mass fraction) of oily sludge A

[0064]

[0065] Parallel analysis of water content (wet basis mass fraction) measurement results of oily sludge A

[0066]

[0067] In this example, the extraction rate of oil and water in the oily sludge was also recorded, and the results can be found in Figure 7 and Figure 8 , it can be seen that compared with the "De...

Embodiment 3

[0069] Take oil sand B as the sample to be tested, utilize the device and method of embodiment 1 to extract and measure the sample, and use figure 1 The measurement results of the "Dean-Stark improved device" shown in the prior art are compared, and the measurement results are listed in the following table.

[0070] Analysis of Parallelism of Determination Results of Oil Content (Wet Basis Mass Fraction) of Oil Sand B

[0071]

[0072] Parallel analysis of water content (wet basis mass fraction) measurement results of oil sand B

[0073]

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Abstract

The invention provides to a device and a method used for measuring the content of oil and / or liquid water in a sample. The device comprises an extraction device which is used for measuring the content of water by utilizing a solvent to carry out extraction on the sample so that the steams of the solvent and water enter into a Dean-Stark water separator to isolate water; the extraction device comprises an extraction bottle used for placing an extraction solvent, an extraction pipe which is placed in the extraction bottle and is used for placing samples to be tested and a vapor-liquid split-flow head which is used for connecting the water separator with the extraction bottle, wherein the upper end of the extraction pipe is opened, and the upper part of the pipe wall is provided with a discharge hole; the vapor-liquid split-flow head is provided with a steam raising pipe in which steam upward passes through the vapor-liquid split-flow head from the extraction bottle to enter a water separator and a downtake pipe in which liquid downward passes through the vapor-liquid split-flow head so as to enter the extraction pipe. The device provided by the invention is utilized to measure the content of the oil and / or water in the sample, the accuracy and the stability are good, the manufacturing cost is cheap, and the device is suitable for large-area popularization and application.

Description

technical field [0001] The present invention relates to a kind of device and method of measuring oil and / or water content in sample, more specifically, refer to a kind of improved Dean-Stark device and utilize this device to measure oil in solid and semi-solid samples in petroleum industry or food industry and / or water content methods. Background technique [0002] In some scientific researches in the petroleum industry or the food industry, it is often necessary to determine the oil and / or water content in a sample. Dean-Stark apparatus (also known as Dean-Stark receiver or Dean-Stark distiller) is a commonly used glass instrument for determining the water content in samples by distillation. [0003] For example, at present, the determination of oil / water content in oily sludge adopts the "Dean-Stark improved device" recommended by the Oil Sands Administration of Alberta, Canada, and its structure is detailed in figure 1 As shown, the device mainly includes the extraction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04G01N1/28
Inventor 张珂朱建华周勇武本成谢迎东马亮
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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