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Strength property evaluating device suitable for solid granular catalyst

A solid particle and evaluation device technology, which is applied in the direction of strength characteristics, measuring devices, and test wear resistance, can solve the problems of limited sedimentation, inability to completely simulate catalyst wear and crushing process, etc., and achieve stable test data, simple structure, Ease of disassembly and maintenance

Inactive Publication Date: 2016-08-31
SHAANXI YANCHANG PETROLEUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These devices cannot fully simulate the wear and crushing process of the catalyst in the reactor. In addition, due to the limited settling effect, the final catalyst dust collected is not all the worn particles.

Method used

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  • Strength property evaluating device suitable for solid granular catalyst
  • Strength property evaluating device suitable for solid granular catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] use figure 1 The device shown was tested with spherical Mo / HZSM-5 catalyst particles. The fluidization tester 4 is made of quartz, the gas distribution plate 5 is sintered from quartz, the particle size range of the catalyst to be tested on it is 50-100 μm, the loading amount is 5g, and the temperature of the external heating furnace 9 is 200°C. The primary gas-solid separator 7 and the secondary gas-solid separator 8 are all cyclone separators, the dust filter tank 10 is embedded with a cellulose filter cartridge, the dust settler 11 is equipped with a vertical baffle, and the adsorption liquid in the fine dust washing tank 13 For water, the valve 17 between the dust settler 11 and the dust collection tank 14 is a stop valve, and the remaining valves 17 are ball valves. The test time, dust collection rate, dust particle size range, stability and blockage are shown in Table 1.

Embodiment 2

[0024] use figure 1 The device shown was tested with spherical Mo / HZSM-5 catalyst particles. The fluidization tester 4 is made of quartz, and the gas distribution plate 5 is sintered from quartz. The particle size of the catalyst to be tested on it is 100-200 μm, and the loading amount is 50 g. The temperature of the external heating furnace 9 is 500 ° C. The primary gas-solid separator 7 and the secondary gas-solid separator 8 are all cyclone separators, the dust filter tank 10 is embedded with a cellulose filter cartridge, the dust settler 11 is equipped with a vertical baffle, and the adsorption liquid in the fine dust washing tank 13 It is a NaCl aqueous solution with a mass fraction of 1%, and the valves 17 are all stop valves. The test time, dust collection rate, dust particle size range, stability and blockage are shown in Table 1.

Embodiment 3

[0026] use figure 1 The device shown was tested with spherical Mo / HZSM-5 catalyst particles. The fluidization tester 4 is made of quartz, the gas distribution plate 5 is sintered from quartz, the particle size range of the catalyst to be tested on it is 200-300 μm, the loading amount is 100g, and the temperature of the external heating furnace 9 is 800°C. The primary gas-solid separator 7 and the secondary gas-solid separator 8 are all cyclone separators, the dust filter tank 10 is embedded with a cellulose filter cartridge, the dust settler 11 is equipped with a vertical baffle, and the adsorption liquid in the fine dust washing tank 13 0.5% Na by mass fraction 2 CO 3 Aqueous solution, valve 17 are ball valves. The test time, dust collection rate, dust particle size range, stability and blockage are shown in Table 1.

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PUM

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Abstract

The invention belongs to the technical field of catalyst application, and relates to physical performance evaluation of a catalyst, in particular to a strength property evaluating device suitable for a solid granular catalyst. The strength property evaluating device comprises a catalyst fluidization testing system and a catalyst dust recycling system communicated with the catalyst fluidization testing system. The catalyst fluidization testing system comprises a gas inlet pipe and a gas-solid separator, the gas inlet pipe is connected with the gas-solid separator through a fluidization tester, a catalyst wearing device is arranged in the fluidization tester, and the gas-solid separator is connected with the catalyst dust recycling system. The strength property evaluating device is simple in structure, convenient to demount and maintain and flexible to operate, a gas distribution palate, the gas inlet pipe and an outer heating furnace are utilized for simulating the real use environment of the catalyst together, the strength property of the catalyst is reflected through the final amount of dust recycled by the catalyst dust recycling system, adaptability to the catalyst is high, and test data is stable and reliable.

Description

technical field [0001] The invention belongs to the technical field of catalyst application and relates to the evaluation of physical properties of catalysts, in particular to a strength performance evaluation device suitable for solid granular catalysts. Background technique [0002] Solid granular catalysts are widely used in many fields such as energy chemical industry, energy conservation and environmental protection, fine chemical industry, etc., involving various industrial reactors, and consume a large amount. To evaluate whether the performance of a solid granular catalyst is good or not, in addition to meeting the requirements of catalytic activity, target product selectivity and service life, appropriate mechanical strength is also very important, which is the main factor determining whether the reactor can operate normally. Since solid granular catalysts are subject to various mechanical stresses, thermal stresses and chemical stresses during the process of prepar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
CPCG01N3/565G01N2203/0284
Inventor 张新庄李大鹏马晓迅王明峰闫鹏黄传峰王永娟杨帆
Owner SHAANXI YANCHANG PETROLEUM GRP
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