催化剂形态与压碎强度的关系研究

石油炼制与化工 ›› 2025, Vol. 56 ›› Issue (7): 83-89.

催化剂形态与压碎强度的关系研究

董松涛¹,田静²,王红彬²,胡志海¹,杨清河¹,杨平¹,刘锋¹

1. 中石化石油化工科学研究院有限公司
2. 淄博齐茂催化剂有限公司

收稿日期:2024-12-25 修回日期:2025-03-10 出版日期:2025-07-12 发布日期:2025-07-01
通讯作者: 董松涛 E-mail:dongst.ripp@sinopec.com
基金资助:
国家重点研发计划;中石化石油化工科学研究院有限公司

RESEARCH ON THE RELATIONSHIP BETWEEN CATALYST MORPHOLOGY AND CRUSHING STRENGTH

Received:2024-12-25 Revised:2025-03-10 Online:2025-07-12 Published:2025-07-01

摘要/Abstract

摘要： 采用多种方法考察了条形载体形态对催化剂压碎强度的影响，结果表明：催化剂压碎强度存在一定的分布范围，符合正态分布；采用Weibull分析法可得到压碎强度和相应的形态参数。考察了截面形态对挤条成型干条和载体压碎强度的影响。结果表明：对于条柱形载体，截面为正方形时压碎强度最高，三角形时最低；实部占比并不是决定强度的关键，截面形态对强度影响较大。采用有限元分析法模拟了不同形态载体在受压过程中的应力分布情况，表明局部的应力集中带来的整体结构坍塌可能是载体强度偏低的原因。

关键词: 催化剂, 形态, 压碎强度, 应力, 有限元, Weibull分析法

Abstract: The influence of support morphology on crushing strength was investigated using various methods. The results indicated that the crushing strength of the support has a certain distribution range, which conforms to a normal distribution. The crushing strength values, and corresponding morphological parameters were obtained using the Weibull analysis method. The impact of morphology on the extrusion of dry strips and the crushing strength of the support was also studied. It was found that the square-shaped columnar support had the highest strength, while the triangular support had the lowest. The proportion of the real part was not the key determinant of strength; instead, morphology had a significant impact on strength. Finite element analysis was employed to simulate the stress distribution during the compression process of supports with different morphologies, revealing that the low strength was due to structural collapse caused by local stress concentration.

Key words: catalyst, morphology, crushing strength, stress, finite element, Weibull analysis method

董松涛田静王红彬胡志海杨清河杨平刘锋. 催化剂形态与压碎强度的关系研究[J]. 石油炼制与化工, 2025, 56(7): 83-89.

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