Bulk catalyst extraction system and use method thereof
By using refractory-lined catalyst extraction tanks and transmission pipelines in the catalyst extraction system, the problem of equipment damage caused by thermal catalyst removal was solved, and safe and efficient catalyst extraction was achieved.
CN122298291APending Publication Date: 2026-06-30DOW GLOBAL TECHNOLOGIES LLC
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Patent Information
- Application Number
- CN202610453599.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2017-05-05
- Filing Date
- 2018-05-03
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
Existing technologies for removing thermal catalysts from reactor systems can easily lead to damage to process equipment and deterioration of refractory materials, especially during high-temperature thermal cycling.
Method used
A catalyst extraction system with an outer metal shell and an inner refractory lining is employed. Thermal shock resistant refractory materials, such as fused silica, glassy silica, or cordierite, are used to construct the catalyst extraction tank and transfer pipeline to resist the temperature and thermal cycling of the hot catalyst.
Benefits of technology
This reduces damage to the extraction system, enabling batch and continuous extraction of catalysts without deforming the outer metal casing, thus protecting the integrity of the equipment.
✦ Generated by Eureka AI based on patent content.
Abstract
A method for treating a chemical stream includes contacting a feed stream with a catalyst in a reactor portion of a reactor system, thereby causing a reaction that forms a product stream. The process comprises separating the product stream from the catalyst; a catalyst treatment section that delivers the catalyst to the reactor system; treating the catalyst in the catalyst treatment section; and transferring a portion of the catalyst from the catalyst processing portion of the reactor system into a catalyst draw-off system, the catalyst draw-off system including a catalyst draw-off tank and a transfer line coupling the catalyst draw-off tank to the catalyst processing portion. Each of the catalyst extraction tank and the transfer line includes an outer metal shell and an inner refractory liner. The method further includes cooling the catalyst in the catalyst extraction tank from greater than or equal to 680 DEG C to less than or equal to 350 DEG C.
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