摘要
利用隔壁精馏塔替代混合碳五馏分原有分离流程中的脱丁烷塔和碳五预分离塔,通过Aspen Plus V12软件对混合碳五馏分的提纯流程进行稳态模拟,在此基础上运用灵敏度分析工具,对隔壁精馏塔的操作参数进行优化。结果表明:采用隔壁精馏塔替代脱丁烷塔和碳五预分离塔,最佳原料进料位置为第11块塔板、最佳质量回流比为5、最佳侧线采出位置为第7块塔板、最佳侧线采出量为500 kg h,气相回流位置为第37块塔板,液相回流位置为第12块塔板;在相同进料条件和相同碳五馏分纯度的前提下,与采用常规精馏工艺相比,采用隔壁塔精馏工艺时冷却能耗降低17.04%,加热能耗降低16.69%。
The steady-state separation process of alkane C_(5) mixture was simulated by Aspen Plus V12 simulation software,in which the separated adjacent distillation column was used to replace the debutane removal column and C_(5) pre-separation column in the original process,and on this basis,the sensitivity analysis tool was used to optimize the operating parameters of the adjacent distillation column.The results showed that the optimal feeding position of the raw material was the 11th tray,the reflux ratio was 5,the side line recovery position was the 7th tray,the side line recovery capacity was 500 kg h,the gas phase reflux position was the 37th tray,and the liquid phase reflux position was the 12th tray.Compared with the conventional distillation process,on the premise of the same feeding conditions and product purity requirements,the cooling energy consumption is saved by 17.04%and the heating energy consumption is saved by 16.69%by adopting the adjacent distillation column process.
作者
张宏宇
韩德求
许凌子
张健
邹雄
董宏光
Zhang Hongyu;Han Deqiu;Xu Lingzhi;Zhang Jian;Zou Xiong;Dong Hongguang(College of Petrochemical Engineering,Liaoning Petrochemical University,Fushun,Liaoning 113001;Yellow River Delta Chambroad Institute Co.,Ltd.;School of Chemical Engineering,Dalian University of Technology)
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2024年第11期144-148,共5页
Petroleum Processing and Petrochemicals
基金
教育部产学合作协同育人项目(221004650123048)。
关键词
隔壁精馏塔
混合碳五馏分
节能
模拟优化
dividing wall column
mixed C_(5) fraction
energy conservation
simulation optimization
