|本期目录/Table of Contents|

[1]姜志忠,刘荣博.歧化装置与芳烃装置二甲苯塔分离热耦合工艺[J].石化技术与应用,2024,5:385-388.
　JIANG Zhi-zhong,LIU Rong-bo.Thermal coupled process for separation of xylene tower in disproportionation unit and aromatic hydrocarbon unit[J].Petrochemical technology & application,2024,5:385-388.
点击复制

歧化装置与芳烃装置二甲苯塔分离热耦合工艺(PDF)

《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]

期数:
2024年5期
页码:
385-388
栏目:
出版日期:
2024-09-10

文章信息/Info

Title:
Thermal coupled process for separation of xylene tower in disproportionation unit and aromatic hydrocarbon unit
文章编号:
1009-0045（2024）05-0385-04
作者:
姜志忠; 刘荣博
（中海石油宁波大榭石化有限公司，浙江 宁波 315812）
Author(s):
JIANG Zhi-zhong;  LIU Rong-bo
（Ningbo Daxie Petrochemical Co Ltd，CNOOC，Ningbo 315812，China）
关键词:
歧化装置; 芳烃装置; 二甲苯塔; 热耦合精馏技术; Petro-SIM模拟软件
Keywords:
disproportionation unit;  aromatic hydrocarbon unit;  xylene tower;  thermal coupled distillation technology;  Petro-SIM simulation software
分类号:
TQ 413.21+3
DOI:
DOI：10.19909/j.cnki.ISSN1009-0045.2024.05.0385
文献标识码:
B
摘要:
针对歧化装置和芳烃装置的C8和C9物料被重复冷凝与加热，以及设备数量多、投资大、占地多、开工程序复杂等缺点，中海石油宁波大榭石化有限公司将歧化装置的重芳烃塔与芳烃装置的二甲苯塔合并为1个新二甲苯塔，开发出满足C8芳烃深度分离和C9芳烃烷基转移的低成本分离热耦合精馏技术。结果表明：通过Petro-SIM软件模拟，该二甲苯塔分离热耦合工艺获得的C8芳烃产品中甲苯质量分数小于0.98%，C≥9重芳烃质量分数小于2.51%，获得的C9芳烃产品中C8芳烃质量分数小于0.21%，C≥10重组分质量分数小于0.07%；与传统工艺相比，热耦合工艺装置建设投资约减少2 700万元，节省占地6 666.7 m2，减少二氧化碳排放9 600 t/a。
Abstract:
In response to the drawbacks of repeated condensing and heating of C8 and C9 feedstocks in the disproportionation unit and aromatics units， as well as the large number of equipment， high investment， large land occupation， and complex start-up procedures， a low cost separation thermal coupled distillation technology that met the deep separation of C8 aromatics and alkyl transfer of C9 aromatics was developed by Ningbo Daxie Petrochemical Co Ltd of CNOOC. The characteristics of the distillation technology was that merged the heavy aromatics tower of the disproportionation unit and the xylene tower of the aromatics unit into a new xylene tower. The results showed that through the simulation of Petro-SIM software， the mass fraction of toluene in the C8 aromatic hydrocarbon product obtained by the thermal coupled process of the xylene tower separation was less than 0.98%， the mass fraction of C≥9 heavy aromatic hydrocarbons was less than 2.51%， and the mass fraction of C8 aromatic hydrocarbons in the C9 aromatic hydrocarbon product obtained was less than 0.21%， and the mass fraction of C≥10 heavy aromatic hydrocarbons was less than 0.07%. Compared with traditional processes， the construction investment of the thermal coupled process unit was reduced by about 27 million Yuan， saving 6 666.7 m2 of land and reducing carbon dioxide emissions by 9 600 t/a.

参考文献/References

［1］戴厚良.芳烃生产技术展望［J］.石油炼制与化工，2013，44（1）：1-10.［2］李保军.对二甲苯生产新工艺及其组合应用探讨［J］.石油化工技术与经济，2021，37（5）：23-25.［3］杨文，白锐，许炳辉，等.HAT-099催化剂在芳烃联合装置中的应用优化［J］.石油化工技术与经济，2019，35（3）：35-38.［4］嵇大勇，郑振聪，沈波.BP两段重浆化PX结晶工艺技术分析［J］.化工设计通讯，2018，44（11）：103-104.［5］冯志武.PX生产工艺及研究进展［J］.现代化工，2019，39（9）：58-62.

备注/Memo

备注/Memo:
-
更新日期/Last Update: 2024-09-10