SIMULATION AND OPTIMIZATION OF MTBE CRACKING TO PRODUCE HIGH PURITY ISOBUTENE BASED ON ASPEN PLUS

Abstract

Abstract: Taking a MTBE cracking unit for producing high-purity isobutene as the research object, a steady-state model of the whole process of the unit was built by using Aspen Plus software. On this basis, using the sensitivity analysis tool, and on the premise of satisfying the product quality requirements, the paper optimized and analyzed important operating parameters of the distillation column pressure and reflux ratio at the top of the column in order to reduce the energy consumption of the unit. The results showed that the total load of the column bottom reboilers was reduced by 1 347 kW, the steam consumption of the column bottom reboilers was reduced by 2.12 t/h after the implementation of the optimization scheme, and the annual economic benefit was about 2.544 million Yuan.

Key words: high-purity isobutene, MTBE, cracking, sensitivity, reflux ratio, process simulation

References

参考文献
[1]刘添智,戴咏川,等.基于Aspen Plus的制备高纯度异丁烯全流程模拟[J].现代化工, 2017,37(8):200–202.
[2]石凤勇,李志超,方堃,等.炼厂异丁烯转产研究[J].中外能源,2018,23(4):63-67.
[3] 王定博,刘红梅,刘晓玲.异丁烯资源的利用[J].石油化工,2020,49(12):1235-1239.
[4] 陈斌.异丁烯的开发利用[J].贵州化工,2010,35(1):22-24.
[5] 耿金伟,汪雪.丁基橡胶生产技术及发展前景[J].河北化工,2012,35(5):54-55.
[6] 陈娟,张伟.聚异丁烯的应用[J].河北化工,2011,34(8):57-59.
[7] 李江利,任海伦.异戊二烯生产工艺技术研究进展[J].弹性体,2011,2111(1):82-87.
[8] 何爱民,张宏宇,等.二异丁烯的合成进展[J].化工科技,2005,13(1):73-75.
[9] Li'e Zhanga, Jian Qinb, Zhiyong Zhangb, et al. Concentrations and potential health risks of methyl tertiary-butyl ether ( MTBE) in air and drinking water from Nanning, South China [J]. Science of The Total Environment, 2016, 541:1348-1354．
[10] Pamela R D Williamsa. Methyl tertiary butyl ether ( MTBE) and other volatile organic compounds ( VOCs) in public water systems, private wells, and ambient groundwater wells in new jersey compared to regulatory and human-health benchmarks [J]. Environmental Forensics, 2014,15(1): 97-119．
[11] 董满祥,马智,常侃. MTBE生产技术及市场前景分析[J].石油化工应用,2007,26(1):6-9.
[12] 李崇杰,宋海岩,张晗,等.基于Aspen Plus的合成气制乙二醇流程模拟及设计创新[J].现代化工,2016,36(11):179-182.
[13] 毛松柏,汪东,朱道平.流程模拟在NCMA脱碳装置设计方面的应用[J].化学工程,2016,44(10):70-73.
[14] 史志强.四氯丙烯分离的流程模拟与优化[J].现代化工,2016,36(1):168-170.
[15] 韩飞.氯乙烯精馏过程Aspen模拟[J].应用化工,2014,(7):1356-1358.
[16] 杨艳文.利用Aspen Plus对MTBE裂解制异丁烯分离工艺的模拟[D].上海:上海师范大学,2012.
[17] 刘春胜.MTBE合成及裂解装置节能对策的探讨[J].石油炼制与化工,2011,42(2):83-87.
[18] 吴昊天.基于Aspen Plus的气体分馏装置的模拟与优化[J].石油炼制与化工,2020,51(8):87-91.