石油与天然气化工2026，Vol.55Issue(1)：41-49,9.DOI:10.3969/j.issn.1007-3426.2026.01.006
C9+重芳烃中高附加值产品分离流程模拟与热集成优化
Simulation and heat integration optimization of the separation process for high-value-added products from C9+heavy aromatic hydrocarbons
李桂军 1宫超 2周晓龙3
作者信息
- 1. 华东理工大学资源与环境工程学院||中国石油化工股份有限公司安庆分公司
- 2. 中国石油天然气集团有限公司
- 3. 华东理工大学资源与环境工程学院
- 折叠
摘要
Abstract
Objective Flexible regulation of high-value product yields and reduction of energy consumption are targeted to be achieved in the separation process of reformed C9+heavy aromatic hydrocarbons through process optimization.Method Based on the comparative analysis of conventional four-tower separation and three-tower separation processes,the optimal process was determined,followed by optimization of key operational parameters and thermal integration design.Result The four-tower separation multiple component process was completed based on adding solvent separation tower in three-tower separation single component process.And the aromatic solvents SA-1000 and SA-1500 was producted simultaneously with all prodcution qaulity indexes meeting the requirements and achieving the flexible adjustment recovery of SA-1000 in the range of 17.8%−47.8%.The best operation conditions of solvent separation based on flexibility analysis were as follows:tower top pressure of 50 kPa;total tower tray number of 41;feed position was the 19th tray;and minimum reflux ratio of 3.62.Through thermal integration optimization between the heavy component removal tower and the solvent separation tower,the total heat consumption was reduced by 11.79%.Conclusion The optimized four-tower multi-component separation process was verified to enable high-efficiency,low-energy consumption separation of C9+heavy aromatics,providing a practical reference for industrial applications aimed at producing high-value-added products.关键词
C9/重芳烃/热集成/过程模拟/产品回收率Key words
C9/heavy aromatics/heat integration/process optimization/product yield引用本文复制引用
李桂军,宫超,周晓龙..C9+重芳烃中高附加值产品分离流程模拟与热集成优化[J].石油与天然气化工,2026,55(1):41-49,9.
