间歇精馏的研究发展.doc

间歇精馏的研究发展 摘 要 本文介绍了国内外近年来间歇精馏新型操作方式的研究进展和发展方向,重点介绍了塔顶累积全回流操作、反向间歇精馏塔操作、中间贮罐操作、多罐间歇精馏塔操作、等压串联双塔操作、带塔底储罐的间歇精馏塔操作以及双再沸器间歇精馏塔操作,阐述了这些新型塔操作方式的特点和相关应用，并通过采用间歇精馏技术回收废溶剂油中的二甲苯和醋酸丁酯进行的研究验证了间歇精馏的优点. 通过研究，结果表明：回流比变化对废溶剂油中主要组分的回收率有较大影响，当R=4时，乙酸丁酯和二甲苯的高浓度回收率都较高，质量浓度达0.8以上的乙酸丁酯的回收率为53.76%，质量浓度达到0.9以上的二甲苯的回收率为38.11%，这表明该回流比下有利于产品的回收。 关键词：间歇精馏；新型操作方式； 废溶剂油分离 Advances of The Batch Distillation Abstract This paper introduces the advances in the research of new mode of batch distillation in recent years. Accumulative batch distillation, reverse batch distillation, middle vessel batch distillation and multi-effect batch distillation were mainly introduced. Stripping batch distillation operation, such as pressure series twin operation, with operation of batch distillation tower bottom tank and dual reboiler batch distillation operation, set column mode of operation of these new features and applications and technology through the use of batch distillation oil recycling waste solvents xylene and butyl acetate in the study carried out proved the advantages of batch distillation process and some experimental phenomena were analyzed. Further verified the advantages and disadvantages of batch distillation by data analysis. Through the experiments, the results indicate:Reflux ratio change to Spend oil recovery of main components has greater influence,When R=4,Butyl and xylene have a high concentration recovery rate. The quality of the concentration of more than 0.8 butyl acetate recovery for 53.76%,The quality of the concentration of more than 0.9 xylene acetate recovery for 38.11%,This all shows that the reflux ratio do the benefit to the recycling products. Key Words： batch distillation； new mode of operation； Separation of Spend Oil 目 录 第一章 前 言 1 1.1间歇精馏 1 1.2间歇精馏的特点 1 1.3间歇精馏的应用 2 第二章 新型操作方式介绍 3 2.1动态累积间歇精馏塔的操作 3 2.2反向间歇精馏塔操作 4 2.3中间罐间歇精馏塔操作 5 2.4多罐间歇精馏塔操作 7 2.5等压串联双塔操作 8 2.6带塔底储罐的间歇精馏塔 9 2.7双再沸器间歇精馏塔 9 2.8双溶剂进口的双釜间歇萃取精馏 10 第三章 间歇精馏分离废溶剂油 12 3.1试验介绍 12 3.2试验仪器与试