精馏的

The appositeness of gas furnace gas application in the production of zinc powder by distillation method as heating energy is described.

阐述采用煤气发生炉生产煤气作为精馏法生产锌粉生产工艺中加热源的合理性，分析两段式煤气发生炉在用于生产热煤气时的优缺点，介绍其在精馏法生产锌粉生产工艺中的应用及其所做的改进。

In this thesis, control and optimization of heat pump assisted distillation is studied based on a mechanism model.

本文在热泵精馏模型化的基础上，分析了塔顶蒸汽压缩型热泵精馏过程的特性，并研究了过程控制与优化的一些问题。

The solvent selection for extractive distillation and separation of azeotropic mixtures by batch extractive distillation were studied via theoretical analysis and the experiment.

本文通过理论分析和实验相结合的方法，主要研究了共沸物萃取精馏溶剂的选择以及共沸混合物的间歇萃取精馏工艺。

The study on the technology and kinetics of chlorination of benzyl chloride is rather essential to the design of reactive distillation column in that the new technology about combination of reaction and distillation is used in the production of benzal chloride.

因为拟采用新型反应精馏耦合技术进行苄叉二氯的生产，研究氯化苄氯化工艺和动力学对于反应精馏塔的设计很有必要。

The extraction rectification process for benzothiophene was simulated by Aspen Plus software, by analyzing the sensitivity of column feed position, solvent ratio, reflux ratio, etc., their respective optimized values were defined, and the the temperature control proposal for sensitive plate was discussed.

用 Aspen Plus 软件模拟硫茚的萃取精馏工艺，通过对精馏塔进料位置、溶剂比和回流比等参数的灵敏度进行分析，确定了相应的优化值；并讨论了灵敏板温控方案。

In order to achieve a rapid and accurate selection for extractive distillation solvent, and to acquire 1,2,3-trimethylbenzene with high purity from solvent oil via extractive distillation, the UNIFAC model was used to calculate the relative volatility of 1,2,3-trimethylbenzene to indane (the mass ratio of 1,2,3-trimethylbenzene to indane is 4∶1) in five different solvents, acetophenone, di-2-octylhexyl phthalate, glycol, dimethyl sulfoxide,sulfolane at 17.47 kPa.

为了快速准确地选择萃取精馏溶剂，由190#溶剂油萃取精馏获取高纯度连三甲苯，运用UNIFAC模型，计算了质量比为4∶1的连三甲苯-茚满体系在苯乙酮、乙二醇、邻苯二甲酸二辛酯、二甲基亚砜和环丁砜5种溶剂中在17.47 kPa下的相对挥发度。

In this dissertation, a three-phase nonequilibrium model for packed column distillations is developed.

在三相共沸精馏过程建模仿真和优化计算中，由于两个液相可能同时出现，判断液相稳定性问题已成为了一个三相精馏过程计算的瓶颈问题，这也是本文的研究重点之一。

In this paper, on the base of powerful calculation and diagramming ability of MATLAB, the typical examples in distillation are analyzed and the corresponding ideas and methods of computer-aided calculation in distillation are given.

本文利用MATLAB语言强大的运算与图形表达功能，通过剖析精馏计算过程中的典型例题，给出了计算机辅助计算精馏过程的具体思路和方法。

Meanwhile, the most difficult task for simulation and optimization of heterogeneous distillations is to determine whether the liquid phase is stable in column stages or packing sections, which is also one of the focuses of this dissertation.

对三相共沸精馏过程而言，一个汽相和两个液相(来源：ABC论文68网www.abclunwen.com)形成汽液液三相共存现象，第二个液相会或多或少地改变精馏过程的流体力学特性并最终影响过程的传质分离效率。

In petrochemical process, there are many important indicator variables that cannot be measured on-line. Such as purity, dry point of distillation product and distillation tray efficiency, etc.

在石油化工生产中，存在很多无法在线测量的重要指标变量，例如炼油企业精馏产品的纯度、干点以及精馏塔塔板效率等。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了