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A method for measuring the wear strength of microsphere catalysts

A measurement method and catalyst technology, applied in the direction of strength characteristics, measuring devices, particle size analysis, etc., can solve the problems of long time and long measurement time, and achieve the effect of reducing measurement time, reducing operation labor intensity and improving work efficiency.

Active Publication Date: 2020-11-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the above three methods take a long time to measure. The first two methods generally take 5 hours, and the operation time of the last method is greatly shortened, but it also takes 1 hour. For the monitoring of the strength of the catalyst production line, the time is still relatively long. long

Method used

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  • A method for measuring the wear strength of microsphere catalysts
  • A method for measuring the wear strength of microsphere catalysts
  • A method for measuring the wear strength of microsphere catalysts

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Embodiment approach

[0055] A specific embodiment, the wear container 305 is at least one selected from a cylinder, a hollow spindle and a square cylinder, and the number of the wear container 305 is 2-8, preferably an even number, for example, 2 , 4, 6 and 8; the ratio of the length of the cylinder to the inner diameter (0.3-10): 1; the wear-resistant ball 306 is selected from steel balls, zirconia balls and silicon nitride balls At least one of the wear-resistant balls 306 has a ball density of 3-21 grams per cubic centimeter, and the wear-resistant balls 306 have a diameter of 1-10 mm; the driving device 303 is an engine and / or a motor .

[0056] An advantage of the inventive method is that the rotational wear index measured by the method of the present invention is linearly correlated with the straight pipe wear index, therefore, the present invention also provides a method for obtaining the microsphere catalyst straight pipe wear index, the method comprising: The assay method of microsphere ...

Embodiment

[0065] The five catalytic cracking catalysts CRMI-2-1, CRMI-2-2, HGY-A, CRSC, and CDOS samples were placed in a roasting furnace for 1 hour at (650±5)°C and cooled to room temperature. Adopt Malvern 2000 laser particle size analyzer (refractive index is set to 1.53, and liquid phase dispersant is water) respectively measure the mass fraction of the 0-20 micron part of the catalyst after the above-mentioned roasting, the mass fraction of 1-(0-20 micron part score) as a 1 . Take by weighing respectively about 10g of the above-calcined catalyst samples and about 100 grams of 6mm steel balls (density of 7.9 g / cubic centimeter) with a diameter, and place them in such as Image 6 The cylindrical wear container shown (the length of the cylinder is 18cm, the inner diameter is 9cm, the cylinder and the rotating shaft (i.e. Image 6 The angle between the dotted line) is 30 degrees), the total volume of the wear-resistant pellets and the microsphere catalyst accounts for 1 / 6 of the vol...

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Abstract

The invention discloses a wearing apparatus for a microspherical catalyst, a determination system and method for wear strength, and a method for acquiring the straight-tube wear index of the microspherical catalyst. The wearing apparatus comprises a wearing container (305), a wear-resistant bead (306) which can be placed in the wearing container (305), and a drive unit (303) driving the wearing container (305) to rotate. The apparatus and system provided by the invention are simple and easy to operate; and with the determination system provided by the invention, the rotary wear index of the microspherical catalyst can be determined, so the strength of the microspherical catalyst can be acquired.

Description

technical field [0001] The invention relates to an abrasion device of a microsphere catalyst, a measurement system and method for abrasion intensity, and a method for obtaining the abrasion index of a straight pipe. Background technique [0002] Microspherical catalysts, especially in the process of fluidized catalytic cracking (FCC) reaction, microspherical catalyst particles in a fluidized state need to be continuously circulated between the reaction and regeneration devices, between catalyst particles, particles and fluidized medium and There may be friction and impact between the side walls of the device. Wear and tear will increase the fine powder content of FCC catalyst, and the fine powder will be carried out with the product oil and gas to cause catalyst loss, which will lead to product pollution and increased catalyst consumption costs, and will cause the deterioration of the fluidization quality of the system and affect the normal operation of the device. Therefor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/56G01N3/02G01N15/02
Inventor 陈妍郭瑶庆朱玉霞田辉平李家兴郭晓峰
Owner CHINA PETROLEUM & CHEM CORP