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
CN112791669APending Publication Date: 2021-05-14EAST CHINA UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EAST CHINA UNIV OF SCI & TECH
Publication Date
2021-05-14

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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.
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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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