|本期目录/Table of Contents|

[1]刘小青.重油催化裂化装置油浆系统循环量下降原因分析及对策[J].石化技术与应用,2025,3:213-216.
　LIU Xiao-qing.Cause analysis and countermeasures on decrease of circulating volume of slurry system in heavy oil fluid catalytic cracking unit[J].Petrochemical technology & application,2025,3:213-216.
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重油催化裂化装置油浆系统循环量下降原因分析及对策(PDF)

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

期数:
2025年3期
页码:
213-216
栏目:
出版日期:
2025-05-10

文章信息/Info

Title:
Cause analysis and countermeasures on decrease of circulating volume of slurry system in heavy oil fluid catalytic cracking unit
文章编号:
1009-0045（2025）03-0213-04
作者:
刘小青
中国石油乌鲁木齐石化公司 规划和科技信息部，新疆 乌鲁木齐 830019
Author(s):
LIU Xiao-qing
Department of Planning and Technology Information，Urumqi Petrochemical Company，PetroChina，Urumqi 830019，China
关键词:
重油催化裂化; 加氢焦化蜡油; 油浆循环量; 结焦
Keywords:
heavy oil fluid catalytic cracking;  hydrogenated coking gas oil;  circulating volume of slurry;  coking
分类号:
TE 624.4+1
DOI:
DOI：10.19909/j.cnki.ISSN1009-0045.2025.03.0213
文献标识码:
B
摘要:
分析了中国石油乌鲁木齐石化公司1.47 Mt/a重油催化裂化装置油浆系统运行中循环量下降的原因，并提出原料优化、油浆系统置换、工艺参数调整等改进措施。结果表明：装置掺炼未加氢焦化蜡油（CGO）后，油浆系统循环量下降原因主要是原料中的碱性氮、残炭、芳香分、胶质和沥青质的含量高，油浆易于结焦，以及油浆在分馏塔塔底的停留时间延长；掺炼未加氢CGO质量分数不高于30%，将油浆含固体量控制在不大于3.0 g/L，分馏塔塔底液位控制在30%~40%，油浆循环量可从255 t/h提升到350 t/h以上。
Abstract:
The reasons on decrease of circulating volume of slurry was analyzed during the operation of slurry system in 1.47 Mt/a heavy oil fluid catalytic cracking unit of Urumqi Petrochemical Company of PetroChina，and improvement measures such as raw material optimization， slurry system replacement， and process parameter adjustment were proposed. The results showed that after blending unhydrogenated coking gas oil （CGO） into the unit， the main reason on decrease of circulating volume of slurry in slurry system were the high content of alkaline nitrogen， residual carbon， aromatic components， gum， and asphaltene in raw materials， which made the slurry prone to coking. And residence time of the slurry at the bottom of fractionation tower was prolonged.The mass fraction of blending unhydrogenated CGO should not exceed 30%， and the solid content of the slurry should be controlled at no more than 3.0 g/L. The liquid level at the bottom of the fractionation tower should be controlled at 30%-40%， and circulating volume of the slurry could be increased from 255 t/h to over 350 t/h.

参考文献/References

［1］ 蔡开鹏.加工焦化蜡油对催化裂化装置的影响及技术对策［J］.石油学报（石油加工），2010，10（Z 1）：62-64.［2］ 晏晓勇.催化裂化装置直接掺炼焦化蜡油的工业运行［J］.中外能源，2012，17（2）：86-92.［3］ 闫俐辰.掺炼焦化蜡油对催化裂化装置的影响［J］.石化技术，2022，29（1）：30-32.［4］ 张利广.分馏塔油浆系统结焦问题分析及处理［J］.山东化工，2017，46（22）：87-88.

备注/Memo

备注/Memo:
-
更新日期/Last Update: 2025-05-10