1)extractive distillation萃取精馏
1.Mechanism of NMA as entrainer in separating acetic acid from water with extractive distillation;N-甲基乙酰胺用于萃取精馏乙酸脱水过程机理
2.Simulation method of batch extractive distillation;间歇萃取精馏过程模拟计算
3.Preparation of anhydrous tert-butanol by extractive distillation with alkali;加碱萃取精馏制取无水叔丁醇
英文短句/例句
1.Study on Solvent Selection and Batch Extractive Distillation Process;萃取精馏溶剂的选择及间歇萃取精馏过程研究
2.Study on the selection of solvent and extraction conditions for extractive distillation process萃取精馏的条件及选择萃取剂的研究
3.Study on a New Process of Refining the Coking Benzene by Extractive Distillation;萃取精馏法焦化苯精制新工艺的研究
4.The Optimization of the Coking Crude Benzol Hydro-refining Extractive Distillation Process焦化粗苯加氢精制萃取精馏工艺优化
5.Study on Extractants Design with Computer Optimization Method;萃取精馏萃取剂的计算机优化设计研究
6.Study on Separation of Azeotrope Mixtures by Batch Extractive Distillation;共沸混合物的间歇萃取精馏分离研究
7.Studies on the Process of Extractive Distillation with Salt for Alcohol-Water System;醇—水体系加盐萃取精馏过程的研究
8.The Study of Extractive Distillation Deep Desulfurization Process for FCC GasolineFCC汽油萃取精馏深度脱硫过程研究
9.Study on Separation of Oxylene and Styrene by Extractive Distillation邻二甲苯—苯乙烯体系的萃取精馏研究
10.Study on Separating Cyclohexane-Cyclohexene by Extractive Distillation萃取精馏分离环己烷—环己烯的研究
11.Study on Batch Extractive Distillation with Adding Solvent before Ebullition先加入溶剂的间歇萃取精馏实验研究
12.Dynamic simulation of batch extractive distillation with SIMULINK基于SIMULINK系统的间歇萃取精馏动态模拟
13.Separation of tetrahydrofuran-ethanol binary azeotrope by extractive distillation萃取精馏分离四氢呋喃-乙醇共沸物系
14.The Working Process of Absolute Alcohol by Extractive Rectification萃取精馏法制取无水酒精生产工艺简介
15.Simulation Study on Preparation of Anhydrous Isopropanol by Extractive Distillation Using Dividing Wall Column隔壁塔萃取精馏制取无水异丙醇的模拟研究
16.Process Optimization Study on Extractive Distillation for Preparation of Anhydrous Ethanol萃取精馏制取无水乙醇的过程优化研究
17.Study on Coupling Technology of Extractive Distillation and Catalytic Distillation in Hydrolyzation of Methyl Acetate;乙酸甲酯水解萃取精馏与催化精馏耦合工艺研究
18.Application of Artificial Neural Network in Simulation of Extractive Distillation and Reactive Distillation;人工神经网络在萃取精馏、反应精馏模拟中的应用
相关短句/例句
extraction distillation萃取精馏
1.A kind of optimal extraction agent is determined for extraction distillation of propane-propene process,based on the simulation results by the ASPEN PLUS software.借助ASPEN PLUS软件,对丙烷?丙烯体系萃取精馏过程所用的溶剂进行了筛选,得到一种最佳的萃取剂。
2.The emphasis of the review is put on the practical,environmental,economical and new technologies such as extraction distillation plus adsorption,extraction distillation plus reactive distillation and extracti.结合作者的研究工作,概述了噻吩及其衍生物的应用前景,着重综述了实用性强、环保、经济可行的萃取精馏+吸附;萃取精馏+反应精馏;萃取精馏+离子液体络合萃取等新型组合工艺,对合理利用噻吩资源,减少焦化苯精制中的环境污染等具有十分重要的意义。
3.method of separation for ethanol and water was simply discussed,Technology of extraction dis-tillation separation for ethanol and water was designed,separation results of which were modelled bycomputer,and extraction distillation experiment with ethylene glycol was researched.简要介绍了乙醇和水分离的方法，设计了蒸馏和萃取精馏相结合分离乙醇和水的工艺，并模拟该工艺的分离结果，以乙二醇为萃取剂进行了萃取精馏试验，结果表明以乙二醇为溶剂萃取分离乙醇和水，分离后乙醇的质量含量可提高到９９。
3)the extractan rectification萃取-精馏法
4)Batch extractive distillation分批萃取精馏
1.Solvent recovery of batch extractive distillation for separation of ethanol-water;乙醇-水分批萃取精馏中溶剂的回收过程
5)dividing-wall extractive distillation分隔壁萃取精馏
1.Simulation of dividing-wall extractive distillation column for separation of the acetic acid and water;分隔壁萃取精馏塔分离醋酸水溶液的模拟
6)batch extractive distillation间歇萃取精馏
1.Simulation on process of batch extractive distillation with mixed solvent;混合溶剂间歇萃取精馏分离过程的模拟
2.Simulation and experiment for producing high-purity methanol in batch extractive distillation;间歇萃取精馏制备高纯甲醇模拟与实验研究
3.Experimental study on batch extractive distillation with an intermediate tank;带有中间贮罐间歇萃取精馏实验研究
延伸阅读
萃取精馏 向精馏塔顶连续加入高沸点添加剂，改变料液中被分离组分间的相对挥发度，使普通精馏难以分离的液体混合物变得易于分离的一种特殊精馏方法。 添加剂的用量对于萃取精馏的分离效果和经济性有很大影响。以异辛烷和甲苯在不同苯酚（添加剂）浓度下的相平衡关系（图1）为例，可知添加剂的浓度较高时，原组分间的相对挥发度较大，分离所需的塔板数也较少。然而添加剂用量大，回收费用增大。因此，添加剂的最佳用量，须通过经济核算来决定。当原料和添加剂按一定比例加入时，还有相应的最适宜回流比。操作时不适当地增大回流比，就降低了添加剂浓度，反而使分离效果变坏。 典型流程 例如料液为异辛烷-甲苯混合物,相对挥发度很小。从精馏塔近塔顶处（图2）加入苯酚（正常沸点为 181℃）作为添加剂。苯酚的挥发度很小，全部与甲苯一起从塔底排出。添加剂在每块塔板上保持一定的浓度，使相平衡关系发生有利于分离的变化。从塔底排出的添加剂，可用另一精馏塔进行回收，并循环使用。为避免少量添加剂从塔顶随易挥发组分逸出，可在添加剂入口以上设一两块塔板予以回收，称为添加剂回收段。 添加剂的选择 萃取精馏的添加剂(又称萃取剂)的选择原则是：①选择性高，即加入少量添加剂就可大幅度增加组分间的相对挥发度；②挥发度小，即具有比料液组分高得多的沸点；③与原料液有足够的互溶度，在塔板上不出现液体分相现象；④来源充足,价格便宜,水和某些极性有机化合物是最常用的添加剂。 萃取精馏主要用于那些加入添加剂后，因相对挥发度增大所节省的费用，足以补偿添加剂本身及其回收操作所需费用的场合。萃取精馏最初用于丁烷与丁烯以及丁烯与丁二烯等混合物的分离。目前，萃取精馏比恒沸精馏更广泛地用于醛、酮、有机酸及其他烃类氧化物等的分离。
