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Vibration fluidizing density grading device for granular catalyst

A technology of density classification and catalyst, which is applied in the direction of catalyst regeneration/reactivation, physical/chemical process catalyst, solid separation, etc., to achieve the effect of convenient operation, simple structure and good effect

Inactive Publication Date: 2005-09-28
SINOPEC YANGZI PETROCHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the mechanism research and technology development research on the classification of granular catalysts according to different densities has not been carried out in China so far.

Method used

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  • Vibration fluidizing density grading device for granular catalyst
  • Vibration fluidizing density grading device for granular catalyst
  • Vibration fluidizing density grading device for granular catalyst

Examples

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Effect test

Embodiment 1

[0019] A vibrating fluidized density classifying device for granular catalysts with high carbon content and low carbon content used in a platinum reforming unit, a base 1, which mainly includes a sieve plate 7 with an inclined size of 600×1500mm, It is inclined 6° in the length direction, and the sieve plate 7 is provided with a rectangular screen hole of 0.6×15mm, and the opening rate is 20%. The sieve plate 7 vibrates in a straight line along the inclined direction of the sieve plate, the vibration frequency is 80 times / min, and the amplitude is 3mm. Vibrate together, the sealing cover 8 is connected with the suction duct through a flexible connection, and then connected with the induced draft fan through the fluidized air outlet 5 on the suction duct; a feeding hopper 4 is installed in the middle of the suction duct, and there is a The pipeline passes through the suction duct and communicates with the spreading plate 6 fixed on the top of the sieve plate 7 , the length of t...

Embodiment 2

[0022] A vibratory fluidized density classifier for high-carbon and low-carbon catalysts used in platinum reformers, which mainly includes a sieve plate 7 that is basically 600 x 1500mm inclined, inclined in the length direction 8°, the sieve plate 7 has a 0.8×20mm rectangular sieve hole, and there is a small tongue on the sieve hole, the small tongue is raised 1.0mm upwards, and the opening rate is 30%. 2 connected, start the motor 2 to make the sieve plate 7 vibrate linearly along the inclined direction of the sieve plate, the vibration frequency is 90 times / min, and the amplitude is 2mm; the sieve plate 7 is equipped with a sealing cover 8, and the sealing cover 8 is fixed on the On the plate 7, it can vibrate together with the sieve plate 7, and the sealing cover 8 is connected with the suction duct through a soft connection, and then connected with the induced draft fan through the fluidized air outlet 5 on the suction duct; the middle part of the suction duct is equipped ...

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Abstract

The vibration fluidizing density grading device for granular catalyst includes one inclined sieve plate, motor connected to the sieve plate via vibrating link rod and transmitting part, sealing hood on the sieve plate, induced draft fan connected to the sealing hood via induced draft pipeline, and feeding bin over the sieve plate with bottom pipe connected to the sealing hood via the induced draft pipeline. After the motor and the induced draft fan are on, the catalyst to be graded and fed via the feeding bin is fluidized on the vibrating sieve plate so that catalyst grains with high carbon content is exhausted from the upper end while catalyst grains with low carbon content is exhausted from the lower end. The present invention can realize grading of granular catalyst with density difference as low as 3%, and the low carbon content catalyst with average carbon content of 1.5-3.5 5 is recovered in the recovering rate of 90-95 vol%.

Description

technical field [0001] The invention relates to a granular catalyst density grading device, in particular to a platinum reforming granular catalyst density grading device. Background technique [0002] Catalyst continuous regeneration (CCR) platinum reforming unit processes naphtha to produce high-octane gasoline blending components and aromatics for petrochemical utilization. The reaction is carried out in a moving bed reactor equipped with a platinum-containing catalyst (granular). During the operation of the device, the catalyst can be added to the reactor or discharged from the reactor. Because the catalyst circulates continuously in the reactor, carbon formation will occur on the inner and outer surfaces of the catalyst. Generally, the amount of carbon deposition is 5%. [0003] In the above reaction process, a small part of the platinum catalyst has not been fully circulated in the reactor system. This part of the catalyst without flow stays at the bottom of the react...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J38/00B03B4/00
Inventor 叶旭初张赛军徐利斌
Owner SINOPEC YANGZI PETROCHEM
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