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On-line cyclone activity recovery method and device for catalyst in C5 petroleum resin production

An activity recovery, petroleum resin technology, applied in catalyst regeneration/reactivation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as catalyst deactivation, achieve slow deactivation process, short process, reduce consumption amount of effect

Pending Publication Date: 2021-05-14
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of petroleum resin production, only improving the reactor equipment cannot fundamentally solve the problem of catalyst deactivation

Method used

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  • On-line cyclone activity recovery method and device for catalyst in C5 petroleum resin production
  • On-line cyclone activity recovery method and device for catalyst in C5 petroleum resin production
  • On-line cyclone activity recovery method and device for catalyst in C5 petroleum resin production

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] 1. Device name

[0066] 10L / h catalyst on-line cyclone activity recovery cyclone cold mold device.

[0067] 2. Technological process

[0068] Such as Figure 4 shown. The tap water comes from the storage tank b. After being pressurized by the centrifugal pump a, the tap water enters the cyclone d from the tangential inlet of the cyclone d; the tap water carries the deactivated catalyst and enters the cyclone d from the tangential inlet; the liquid-solid two-phase While the mixture is separated by the cyclone, the deactivated catalyst undergoes orbital motion along the axis of the cyclone and the coupling motion of the particle axis rotates, and the activity of the catalyst is restored under the action of the coupled motion; Migrate downward to the side wall and flow out from the bottom outlet of cyclone d, and tap water flows out from the overflow port of cyclone d; after flowing out of the cyclone, the regenerated catalyst and tap water are re-mixed in the pipeline ...

Embodiment 2

[0078] 1. Device name

[0079] 450L / h C5 petroleum resin production process equipment.

[0080] 2. Technological process

[0081] Such as Figure 5 shown. The copolymerization liquid is added to the reactor A from the side of the reactor, and the catalyst is added to the reactor A from the top of the reactor A; the control range of the feed temperature of the copolymerization liquid and the catalyst is from room temperature to 55 ° C, and the mass ratio of the catalyst is controlled to be 0.992; Under the action of the catalyst, the cationic polymerization reaction of the liquid begins to occur; during this process, due to the violent reaction of the polymer, it is easy to produce detonation polymers to wrap the catalyst particles, and it is the catalyst that causes the catalyst to be unable to effectively participate in the reaction; the deactivated catalyst and the polymerization reactant form The two-phase mixture flows out from the bottom of the reactor A, the outlet pr...

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Abstract

The invention relates to an on-line cyclone activity recovery method and device for a catalyst in C5 petroleum resin production, and provides an on-line cyclone activity recovery method for a catalyst in C5 petroleum resin production. The method comprises the following steps: discharging a two-phase mixture composed of a catalyst and a polymerization liquid in a reaction kettle from the bottom of the reaction kettle, enabling the mixture to enter a catalyst online cyclone activity recovery cyclone; subjecting the two-phase mixture to catalyst activity recovery in the catalyst online cyclone activity recovery cyclone; and collecting the catalyst leaving the catalyst online cyclone activity recovery cyclone and a polymerization liquid in a same pipeline, performing uniform mixing the catalyst, feeding a mixture into a heat exchanger, storing a two-phase mixture composed of the catalyst with recovered activity and the polymerization liquid in the heat exchanger, and discharging the two-phase mixture into a reaction kettle for recycling after the two-phase mixture is stored to a preset amount. The invention further provides an on-line cyclone activity recovery device for the catalyst in C5 petroleum resin production.

Description

technical field [0001] The disclosure relates to an activity recovery device in a C5 petroleum resin production process, in particular to a catalyst online swirling activity recovery method and device in a C5 petroleum resin production process. Background technique [0002] The most important reasons for catalyst deactivation are: (i) isolation and sintering of active sites; (ii) blockage of catalyst pores and active sites by carbon deposits and metal deposits; (iii) poisoning of active sites. The deactivation caused by the isolation of the catalyst active site is mainly due to the violent reaction process, which generates a large amount of reaction products near the catalyst active site, which promotes the reaction product to wrap the catalyst particles, and because of the poor permeability of the coating, the catalyst activity decreased. [0003] In the C5 petroleum resin production process, the polymerization reaction mainly occurs under the catalysis of the catalyst. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/00B01J38/00C08F240/00
CPCB01J8/0055B01J38/00C08F240/00Y02P20/584
Inventor 李剑平汪华林代黎王尧沈其松杨孟君胡江青孙向东张阳志李来福常迪
Owner EAST CHINA UNIV OF SCI & TECH
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