精馏

In the experiment, compared to atmosphere distillation, low-pressure distillation is proved to be able to save more nourishment, remain more yeast for the fermentation with cornstalk and finally give more energy saving.

与常压精馏相比较，低压低温精馏能够减少醪糟中营养物质的损失，更多地保存了酶活力和发酵菌体的活性，为醪糟进行下一步的秸秆固态发酵饲料生产提供保证；而且有利于进行浓醪精馏，实现大幅度的节能。

UNIFAC method was applied to the mathematical simulation of methanol distillation to calculate the equilibrium data of five component systems which include methanol, water, decane, isobutanol and ethanol.

将UNIFAC法应用于甲醇精馏过程数学模拟，计算甲醇-水-癸烷-异丁醇-乙醇五组分体系的汽液平衡数据，从理论上成功地解释了在甲醇精馏过程中加水萃取精馏的原理。

In design of rectifying unit to separate toluene-titanium tetrachloride,according to design projects,the theoretical plates of rectifying tower were calculated by the software with graphical calculation of theoretical plate.The tower load parameters in now running float valve tower were checked by the KG-TOWER float valve tower checking softwarel.The packing-tower diameter was calculated by high-effciency structured packings and hydraulic calculation softwocre.The evaluation through calculating data of valv...

在设计分离甲苯—四氯化钛的精馏化工单元中，依据设计任务，通过使用图解法计算理论板软件，计算精馏所用的理论板数；运用KG—TOWER浮阀塔校核软件，对现用浮阀塔进行塔负荷等参数的校核；采用等板数较大的高效规整填料与精馏塔水力学计算软件，来计算填料塔的塔径；通过对浮阀塔和填料塔的计算数据进行评价，得出结论认为选用填料塔设计优于浮阀塔设计。

The unit of 1000t/a methylal synthesis by fluidized catalytic distillation was designed according to the results of equilibrium stage simulation, together with the consideration of the existence of plate efficiency and utilization ratio of catalyst.

在模拟过程中，探讨了塔板数、空时、回流比等对催化精馏效果的影响，分析了各因素对催化精馏的耦合影响关系，得到了较适宜的理论塔板数、空时和回流比，为本体系的工业性试验用催化精馏塔设计提供了依据。

The new model is the same as that of traditional distillation process in expression style, and it is solved by an algorithm which combines the relaxation method with the modified Newton Raphson method.

引入变换变量的概念，将发生平衡反应的反应精馏过程模型变换为普通精馏过程模型，减少了迭代变量，避免了反应量的计算，并易于采用普通精馏的计算方法。

Of late years, Along with the development of computer、artificial intelligence and nerve net ,it become one of the problem that the corporations concern, that is how to combine the computer with the theory of distillation and apply it to fault diagnosis of distillation column.

近年来随着计算机和人工智能的发展及精馏过程的理论日趋成熟，如何将计算机和精馏过程的理论有机结合应用到精馏塔的故障诊断中去，是企业关注的问题之一。

At the same time , fault diagnosis expert system of distillation column can judge the multifarious unconventionality state exactly in time to prevent them expand, make necessary instruction and correction to improve the reliability of distillation column.

与此同时，精馏塔故障诊断专家系统还能够及时，正确地对各种异常状态做出判断，防止他们的进一步发展，对精馏塔的运行进行必要的指导或修正，以期提高精馏塔运行的可靠性。

Continuous distillation processes including three-tower,four-tower and five-tower for separation of methyl cyanoacetate were proposed to replace the conventional batch distillation process.

针对氰乙酸甲酯传统的间歇精馏分离过程，提出了连续精馏分离氰乙酸甲酯的三塔、四塔和五塔工艺流程，并对3种分离流程进行工艺分析，确定了连续精馏五塔分离工艺。

The rather amount of dichloroacetic acid not only enhances consumption of raw materials, but also increases the cost, with the difficulty to separate it from the product later the quality of products drops. Dichloroacetic acid is of a few uses causing the huge waste of the fund and equipments.To control the dichloroacetic acid coming out and decrease the consumption o

通过大量实验，对反应精馏技术的原理进行了理论研究，从中探索得出反应精馏法合成氯化节、氯乙酸等有机氯化物的工艺路线，为氯化节和氯乙酸的生产提供了一条新的生产工艺，为反应精馏技术应用的理论研究拓展了新的内容，并为工程设计提供了基本数据。

Fit , the fractions in different temperature ranges were ingathered by rectifying wash oil azeotropic distillation were done with the different fractions and ethanediol respectively .

首先精馏洗油，切取不同温度段的馏分，然后分别与共沸剂乙二醇进行共沸精馏试验；在共沸精馏中，通过改变馏分与共沸剂的质量比和回流比，考察了不同条件对喹啉纯度的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。