精馏的

In our work, a new continuous thermodynamics method for petroleum fraction phase equilibrium calculation has been proposed, in which true boiling point distillation curves for petroleum fractions were considered to be a continuous distribution function and the distribution variable was TBP temperature, and at the same time, a spline method was used in the distribution function calculation.

在以上工作的基础上，建立了具有普遍实用性的常压塔精馏计算的数学模型，并对多个工业装置进行了实际的模拟，模拟结果与装置的实际情况符合良好，在预测塔的抽出温度，抽出产品的性质，以及各个侧线产品收率等方面都得到满意的结果。

In addition, the low-temperature heat utilization in deaeration of desahed water and temperature elevation of deaerated water is explored on the basis of refinery system integration and optimization.

其次从炼油厂系统整合优化角度探讨除盐水在除氧环节以及除氧水在升温环节低温热利用的途径，通过技术改进和系统低温热利用相结合，探讨芳烃精馏塔实现回收低温热和消除装置瓶颈的可行性，提出利用区域除盐水集中升温除氧以及区域除氧水先集中升温再进汽包产汽的芳烃脱庚烷塔低温热利用方案，不仅能回收67％的低温热，产生的1.4MPa低压蒸汽（10t／h）还可代替连续重整装置脱已烷塔重沸器的中压蒸汽。

It was proposed in the 1960's and developed rapidly in the 1990's. However, some theory problems, for example, the fluid dynamics and mass transfer during the filling up period which could not be dealt with in conventional distillation theories has been remained unstudied. And the simulation and mathematical models have to be made based on some assumptions, which are different from the actual situation obviously. Therefore the further development of DACO was restrained in the past years.

该操作方法自20世纪60年代提出，90年代以来得到了迅速发展，但众多学者的研究基本上集中在优化操作及其与传统恒回流法的比较，而许多重要的基本理论问题至今缺乏研究，特别是传统精馏理论无法涉及的塔内无回流充液阶段的流体力学和传质问题一直没有得到很好解决，导致了动态累积循环操作法的数学模型和模拟计算只能以与塔内真实状况相差很大的简化假设为基础，这严重地阻碍着动态累积循环操作法的进一步发展。

Firstly, A precise batch-distilling tower, which would be adaptable to operate in industry or middle scale experiment, has been designed and set up. The optimized operation conditions of reflux (80?1), vaporing quantity ( 9~10 mL?min-1), and raw material concentration (60% mass of 2-methyl-1-butanol) were found.

首先在小试研究成果的基础上，放大设计并建造了适合2-甲基-1-丁醇与3-甲基-1-丁醇的分离的中试或小规模工业化生产的间歇精馏装置，并以此装置作为实验装置进行了工业化试验，得到了该塔的最优操作条件：回流比80、汽化量9~10ml/min、原料中2-甲基-1-丁醇的质量百分浓度约为60%。

With Ammonia as refrigerant and water as absorbent, they are boiled by the heater in the generator, as a result, the Ammonia-water solution is evaporated. The Ammonia vapor is purified by the rectifier and is condensed into liquid Ammonia in condenser. The liquid Ammonia and the pure Helium purified in the absorber are evaporated together in the evaporator and to absorb heat thus refrigerate at the same time.

采用氨为制冷剂，水为吸收剂，通过对制冷机芯的发生器加热，使氨水溶液中的氨蒸发，氨蒸汽经精馏器提纯后进入冷凝器成液氨，液氨在蒸发器中与经吸收器提纯的纯氦共同蒸发，同时从外部吸收热量，达到制冷的目的。

The fitted dynamics model parameters are as following:In order to apply the reaction distillation technology in more fields, the methylbenzene side-chain photo-chlorination has been done in the experiment apparatus. The results have proven this technology is feasible and crude benzyl chloride with a purity of 96~98% can be obtained.

估计得到的动力学模型为：为扩大背包式反应精馏耦合工艺的应用范围，在所建立的实验装置上，进行了甲苯侧链光氯化反应的研究，结果表明工艺可行，可以得到含量96～98％的氯化苄粗品。

Extractive distillation and liquid-liquid extraction are effective separation processes to deal with the separation of close boiling compounds or azeotropes systems. The selection of appropriate solvents is the key.

化工生产中常遇到欲分离组分之间的相对挥发度接近1或形成共沸物的难分离物系，萃取精馏和液液萃取是常用且有效的方法，其中萃取剂的选择是关键。

The vapour-liquid equilibrium composition on the various plates and the theoretical plate number of the plate tower, reaction volume of multistage continuous stir reactor and the theoretical stage number of multistage extraction can be calculated by this method.

介绍了Excel中填充柄的特点，并对其在板式精馏塔各块塔板上的汽-液平衡组成与理论板数、串联全混流反应器的反应体积和多级萃取的理论级数应用中给出了详细的操作步骤和计算实例。

The compound tray holds excellent features , it has been successfully used in industry namely , methane alcohol ethanol , methyl aeetyl distillations and etc It is also expected to have a broad prospect for applications in other chemical industry field In this paper , many studies are concerned with the gas liquid duallowing the hole and oscillating regulation of the compound tray by experiments These studies will provide theoretical and experimental foundation for the design and improvement of the compound tray The main part of which is a 500 mm inner diameter three compound trays column , serving as a hydrodynamic model , the system air ?

复合塔板以其优良的性能，在甲醇、乙醇和丙酮等生产精馏装置中获得了成功的应用，并在其它化工生产领域有着广泛的应用前景。本论文旨在通过实验研究复合塔板上气液穿孔流动及波动波动规律，为复合塔的设计和结构改进提供理论和实验依据。实验是在一塔径500mm的冷模塔内，以空气—水为物系，在常压下进行实验。

The flow direction and packing fraction in membrane contactors were also investigated. Baffles in the shell side were found to have good effect on separation and therefore set in counter flow operation of parallel mode.

此外，为更好地提高新型中空纤维膜结构填料的分离效率，研究了膜接触器中流体的流动方式和填充密度对精馏分离性能的影响，确定了壳层挡板对现有平流运行方式的改善作用，并进行了有效的挡板设计和试运行。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。