段振亚,刘茂睿,李韶璞,王臣,张俊梅,李镇江,刘永生

• 1:青岛科技大学机电工程学院
• 2:青岛科技大学化工学院
• 3:威海汇鑫化工机械有限公司

摘要(Abstract)：

由于实际生产中真空度高且影响因素多,迄今为止有关分子蒸馏的基础理论尚不完善,其工艺及设备结构设计仍主要依靠于经验和实验数据确定,制约了其实现大规模的工业化应用。文中主要从蒸发表面的液体成膜、液膜在加热表面的蒸发过程、气相蒸发分子运动过程以及冷凝面上的气体分子冷凝过程4个方面,综述了国内外学者对分子蒸馏过程的机理研究进展,重点对近年来快速发展的刮膜式分子蒸馏技术进行了详细介绍。在此基础上,提出了未来分子蒸馏技术亟待解决的关键问题,认为高真空条件下的分子流运动行为的研究可揭示工业生产中分子蒸馏的分离原理。

关键词(KeyWords)： 分子蒸馏;刮膜;基础理论;展望

Abstract:

Keywords:

基金项目(Foundation): 威海市科技发展计划项目(2016GGX022);; 泰山学者工程专项经费资助项目

作者(Author): 段振亚,刘茂睿,李韶璞,王臣,张俊梅,李镇江,刘永生

参考文献(References)：

• [1]徐婷,韩伟.分子蒸馏的原理及其应用进展[J].机电信息,2015,3(8):1-8.
• [2]王燕飞,许松林.分子蒸馏过程的计算流体力学模拟[J].化学工程,2010,38(1):30-33.
• [3]KOMORI S,TAKATA K,MURAKAMI Y.Flow structure and mixing mechanism in an agitated thin-film evaporator[J].Journal of Chemical Engineering of Japan,1988,21(6):639-644.
• [4]KOMORI S,TAKATA K,MURAKAMI Y.Flow and mixing characteristics in an agitated thin-film evaporator with vertically aligned blades[J].Journal of Chemical Engineering of Japan,1989,22(4):346-351.
• [5]PAWAR B S,MUJUMADAR A S,THORAT B N.CFD analysis of flow pattern in the agitated thin film evaporator[J].Chemical Engineering Research and Design,2012,90(6):757-765.
• [6]CVENGROS J,POLLAK S,MICOV M,et al.Film wiping in the molecular evaporator[J].Chemical Engineering Journal,2001,81(1):9-14.
• [7]许松林,郭凯.刮膜式分子蒸馏装置中的液膜状态实验[J].天津大学学报,2010,43(6):544-548.
• [8]王小明,许松林,徐畅.分子蒸馏装置中刮膜器对液膜流动状况的影响研究[J].高校化学工程学报,2012,26(1):13-18.
• [9]许松林,王玲,郭凯.刮膜式分子蒸发器上液体的停留时间分布[J].天津大学学报,2012,45(1):70-74.
• [10]姚文瑾,李阳,许松林.刮膜式分子蒸馏器液体停留时间分布及壁面结构优化[J].高校化学工程学报,2015,29(2):277-283.
• [11]NGUYEN A D,GOFFIC F L.Limits of wiped film shortpath distiller[J].Chemical Engineering Science,1997,52(16):2661-2666.
• [12]ARZATEMARTINEZ G,JIMNEZGUTIRREZ A,GARCIA H S.Experimental analysis and modeling of the separation of triacylglycerol and free fatty acid mixtures using molecular distillation[J].Industrial and Engineering Chemistry Research,2011,50(19):11237-11244.
• [13]CVENGROS J,LUTISAN J,MICOV M.Feed temperature influence on the efficiency of a molecular evaporator[J].Chemical Engineering Journal,2000,78(1):61-67.
• [14]LUTISAN J,CVENGROS J,MICOV M.Heat and mass transfer in the evaporating film of a molecular evaporator[J].Chemical Engineering Journal,2002,85(2/3):225-234.
• [15]LINAN L Z,LIMA N M N,MANENTI F,et al.Experimental campaign,modeling,and sensitivity analysis for the molecular distillation of petroleum residues 673.15 K+[J].Chemical Engineering Research and Design,2012,90(2):243-258.
• [16]李国兵,许春建,周明.DBP-DBS刮膜分子蒸馏过程数值模拟[J].天津大学学报,2004,37(3):196-202.
• [17]闫广,李庆生,尹侠.刮膜式分子蒸馏过程的研究[J].南京工业大学学报:自然科学版,2005,27(2):67-71.
• [18]余亚杰,许松林.刮膜式分子蒸馏器内传质的数值模拟[J].高校化学工程学报,2016,30(3):547-553.
• [19]李慧,王珂鑫.刮膜式分子蒸馏传质模型及其仿真[J].化工学报,2015,66(3):1026-1024.
• [20]KAWALA Z,STEPHAN K.Evaporation rate and separation factor of molecular distillation in a falling film apparatus[J].Chemical Engineering&Technology,1989,12(1):406-413.
• [21]BHANDARKAR M,FERRON J R.Simulation of rarefied vapor flows[J].Ind Eng Chem Res,1991,30(5):998-1007.
• [22]BASTISTELLA C B,MACIEL M R W,FILHO R M.Rigorous modeling and simulation of molecular distillators:development of a simulator under conditions of non ideality of the vapor phase[J].Computers&Chemical Engineering,2000,24(2):1309-1315.
• [23]FERRON J R.Evaporation and condensation of mixtures under rarefied conditions[J].Industrial&Engineering Chemistry Fundamentals,1986,25(4):2897-2914.
• [24]LUTISAN J,CVENGROS J.Mean free path of molecules on molecular distillation[J].Chemical Engineering Journal&the Biochemical Engineering Journal,1995,56(2):39-50.
• [25]HU Hui,HUANG Jicai,WU Shuming,et al.Simulation of vapor flows in short-path distillation[J].Computers and Chemical Engineering,2013,49(1):127-135.
• [26]BIRD G A.Molecular gas dynamics and the direct simulation of gas flow[M].Oxford:Clarendon Press,2003.
• [27]许松林,李阳.基于VHS分子模型的DSMC方法研究分子蒸馏气相微观特性[J].天津大学学报:自然科学与工程技术版,2015,48(11):1023-1029.
• [28]ZHU Dong,HUANG Fengxia,XU Songlin,et al.Multiscale simulation of falling film short-path distillation[J].Cannadian Journal of Chemical Engineering,2016,94(8):1533-1538.
• [29]BADIN V,CVENGROS J.Model of temperature profiles during condensation in a film in a molecular evaporator[J].Chemical Engineering Journal,1992,49(3):177-180.
• [30]邵平,姜绍通,潘丽军,等.分段蒸发与冷凝对分子蒸馏过程的影响[J].农业机械学报,2007,38(5):86-90.
• [31]CVENGROS J,MICOV M,LUTISAN J.Modeling of fractionation in a molecular evaporator with divided condenser[J].Chemical Engineering&Processing Process Intensification,2000,39(3):191-199.
• [32]张旭斌,许春建,周明.真空下同轴圆筒间分子蒸馏过程的数值模拟[J].过程工程学报,2005,5(1):97-102.
• [33]MARTINS P F,CARMONA C,MARTINEZ E L,et al.Evaluation of methyl chavicol concentration by different evaporation processes using central composite experimental design[J].Separation and Purification Technology,2012,98(98):464-471.
• [34]李鑫钢.现代蒸馏技术[M].北京:化学工业出版社,2009.