|本期目录/Table of Contents|

[1]樊春江,杨立新,李长江,等.300万t/a连续重整装置催化剂再生单元运行问题及对策[J].石化技术与应用,2025,3:222-225.
 FAN Chun-jiang,YANG Li-xin,LI Chang-jiang,et al.Operation problems and countermeasures for catalyst regeneration unit of3 Mt/a continuous reforming unit[J].Petrochemical technology & application,2025,3:222-225.
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300万t/a连续重整装置催化剂再生单元运行问题及对策(PDF)

《石化技术与应用》[ISSN:1009-0045/CN:10-2024/TQ]

期数:
2025年3期
页码:
222-225
栏目:
出版日期:
2025-05-10

文章信息/Info

Title:
Operation problems and countermeasures for catalyst regeneration unit of3 Mt/a continuous reforming unit
文章编号:
1009-0045(2025)03-0222-04
作者:
樊春江1杨立新2李长江2韦见中2宁晓威2
1.中国石油石油化工研究院 兰州化工研究中心,甘肃 兰州 730060;2.广东石化有限责任公司 炼油四部,广东 揭阳 515200
Author(s):
FAN Chun-jiang1 YANG Li-xin2 LI Chang-jiang2 WEI Jian-zhong2 NING Xiao-wei2
1.Lanzhou Chemical Research Center, Petrochemical Research Institute, PetroChina,Lanzhou 730060, China; 2.No.4 Refining Department, Guangdong Petrochemical Co Ltd, Jieyang 515200, China
关键词:
连续重整催化剂再生单元烧焦结盐粉尘
Keywords:
continuous reforming catalyst regeneration unit coking salt formation dust
分类号:
TE 624.4+2
DOI:
DOI:10.19909/j.cnki.ISSN1009-0045.2025.03.0222
文献标识码:
B
摘要:
针对广东石化有限责任公司300万t/a连续重整装置投产后,催化剂再生单元运行中出现烧焦气体流通率持续下降、催化剂粉尘量增大、再生器烧焦床温分布不均匀、催化剂循环不畅等问题进行原因分析,并提出相应的解决措施。结果表明:上述问题主要是由于氯吸附罐罐底低温部位及下料管线入口结盐、催化剂再生烧焦局部超温造成结块、再生器频繁停车造成约翰逊网内网开裂破损、掺炼高终馏点和高含硫原料导致催化剂结焦和硫中毒、重整原料系统含水量高影响催化剂性能等因素造成,可通过采取清理再生器筛网、催化剂密度分离、增设氯吸附罐伴热设备、严格控制重整原料终馏点和杂质含量等措施得以有效解决,保证装置长周期生产运行。
Abstract:
After running of 3 Mt/a continuous reforming unit at Guangdong Petrochemical Co Ltd, various problems were observed in operation of catalyst regeneration unit, including a continuous decline in the flow rate of coking gases, increased catalyst dust, uneven temperature distribution in the regenerator′s coking bed, and poor catalyst circulation. The causes were analyzed and corresponding solutions were proposed. The results showed that above problems were mainly caused by factors such as salt formation at the low-temperature areas of the chloride adsorption tank bottom and the inlet of discharge pipeline, local overheating during catalyst regeneration caused by agglomeration, frequent shutdowns of the regenerator leading to internal mesh cracking of Johnson screen, blending of feedstock with high final boiling points and high sulfur content causing catalyst coking and sulfur poisoning, and high water content in the reforming feedstock affecting catalyst performance. These could be effectively resolved by measures such as cleaning the regenerator screens, separating catalyst density, adding heat tracing equipment for the chloride adsorption tank, and strictly controlling the final boiling point and impurity content of the reforming feedstock, thereby ensuring long-term stable production operation of the unit.

参考文献/References

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备注/Memo

备注/Memo:
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更新日期/Last Update: 2025-05-10