Column Profile Maps for a Dividing Wall Column using a N on-ideal System

摘要：

This paper considers the Dividing wall column (DWC), a fully-thermally coupled column (Petlyuk column) with an adiabatic wall dividing the column into two equal halves. The main reason for considering the DWC is the potential capital savings compared to traditional distillation column arrangements. A feasible DWC design requires that the liquid profiles intersect at the top of the dividing wall and the vapour profiles intersect at the bottom of the dividing wall. The double intersection of different column sections profiles is modeled by implementing the Difference Point equation. In this work, we investigate the conditions necessary to have a feasible double intersection for the Acetone-Methanol-Ethanol system, which exhibits a low boiling azeotrope between Acetone and Methanol, by considering several difference vector cases. The authors of this paper identify the regions in the mass balance triangle for feasibility and relate it to the topology of the system outside the mass balance space. An understanding of the effect of nodes outside the mass balance is related to the DWC.

关键词： Dividing Wall Column fully thermally coupled distillation column Petlyuk Column column profiles Mass balance.

作者: Ronald Abbas Shehzaad Kauchali Diane Hildebrandt David Glasser

作者单位: Centre of Materials and Process Synthesis, School of Chemical and Metallurgical Engineering, University of the Witwatersrand, Private Bag 3, WITS 2050, Johannesburg, South Africa

会议类型: 国际会议

会议名称: The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-14（万方平台首次上网日期，不代表论文的发表时间）