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Catalyst sampler

A sampler and catalyst technology, applied in the direction of sampling devices, etc., can solve the problems of small sampling volume, non-continuous sampling, and poor universal applicability, and achieve the effects of increasing insertion depth, reducing sampling loss, and simple structure

Active Publication Date: 2007-11-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems of small sampling volume, poor universal applicability and inability to continuously sample the existing solid particle or powder sampler, the present invention proposes a sampler suitable for solid catalyst particles at different levels of a fixed bed reactor

Method used

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  • Catalyst sampler
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  • Catalyst sampler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Catalyst sampling experiments were carried out in fixed bed reactors which had been operated industrially. Send 3 pipes of the sampling tube (made of metal), 3 pipes of the sample conduit (made of metal and plastic respectively), spiral lifter, hose and other components into the reactor through the manhole, and the catalyst is sampled. After assembly of the reactor, the catalyst in the catalyst bed was sampled. Driven by the screw jack, the sampling tube easily enters various depths of the catalyst bed. The catalyst bed is continuously sampled by opening the sampling hole, or by closing the sampling hole, that is, closing the sampling hole first, and then opening the sampling hole when the sampling tube reaches the required depth of the catalyst bed. Catalyst sampling at different depths, the catalyst sampling device of the present invention can accomplish the purpose of catalyst sampling. The sampler is inserted to a depth of up to 3 meters. When the sampling is fin...

Embodiment 2

[0044] Catalyst sampling experiments were carried out in fixed bed reactors which had been operated industrially. Send 3 pipes of the sampling tube (made of metal), 3 pipes of the sample conduit (made of metal and plastic respectively), spiral lifter, hose and other components into the reactor through the manhole, and the catalyst is sampled. After assembly of the reactor, the catalyst in the catalyst bed was sampled. The effect of the screw propeller installed on the top of the sampling pipe 5 is mainly investigated. Practical applications have found that when the catalyst bed compaction is not serious and the catalyst bed is relatively loose, using the equal-diameter spiral propeller 19 can insert the sampler at a faster speed; , using the conical screw propeller 20, the sampler can be easily inserted into the catalyst bed.

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Abstract

A catalyst sampler is prepared as erecting propeller at top end of sampling tube, setting conical head at bottom end, arranging a sampling hole at bottom portion of sampling tube, setting a ring tube being able to move up and down in said bottom portion, setting bottom end of sample guide tube to be near to top of sampling hole, connecting top end of sample guide tube to flexible tube then connecting top end of sample guide tube to collector of sample vacuum system.

Description

technical field [0001] The present invention relates to a particle sampler for sampling accumulated solid particles, and more particularly, the present invention relates to a sampler for solid catalyst particles in a fixed bed reactor. Background technique [0002] In petrochemical plants, there are a large number of fixed-bed reactors filled with solid catalysts. During the use of these reactors, due to the performance of the catalyst itself or the condition of raw materials or operation, the performance of the catalyst will decline and cannot meet the production requirements. At this time, it is necessary to judge the performance of the catalyst at that time, especially for commonly used adiabatic bed reactors, the bed temperature of different bed depths is not the same, so that the catalyst deactivation rate is different, and when the catalyst is poisoned, the catalyst at different depths The degree of poisoning is also different, so it is necessary to judge the situatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/14
Inventor 戴伟吴庆凤卫国宾郭彦来王晓静唐迪平刘海江戚文新卢红亮田莉彭晖
Owner CHINA PETROLEUM & CHEM CORP
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