查询词典 fractionating tower

In this dissertation, we choosed anisole as starting material, via chloromethyla tion, cyanogenation, to prepare methoxybenzeneacetonitrile, then fractionated in a fractionating tower, and finally...

本论文也对两步的反应条件进行了探索，获得了比较理想的反应条件。文中还对对甲氧基苄氯自聚的原因与机理进行了探讨，并找到了比较理想的阻聚剂，使得粗品收率提高了10％。

This paper introduces industrial application of the new compound slant-hole tray with multiple downcomer in the refinery gas separation unit, The result shows that the methods for design of the new tray is reliable, and the new tray can be used widely among the fractionating tower, absorbing tower, desorber in petrochemical, chemical, pharmaceutical industries and so on.

介绍了新型多溢流复合斜孔塔板在炼厂气体分馏装置上的工业化应用，结果表明其设计方法是可靠的，可以广泛应用于石化、化工、医药等许多行业的精馏塔、吸收塔和解吸塔上，特别适用于液相负荷很大的体系。

According to the idea of "segmenting and centralizing ", fractionating tower can be divided into many sections.

本论文采用&分段集总&的思想，将整个塔设备视为含C个组分的N级串联的连续搅拌槽。

According to the characteristics of the cold insulation box of Fractionating tower, it is considered that the effect of inner-filling on the construction is related with the variable density, then the relative formulation in the condition of n...

根据分馏塔保冷箱的特点，认为内填料对结构的作用与变密度有关，推导了无水平位移下的相关公式；对此结构在有水平位移下内填料的发育进行仿真分析，并将内填料的作用与结构的楼层柱的旋转角建立联系；最后根据得到的结论对分馏塔保冷箱在风与内填料作用下进行了非线性分析，得到结构的极限承载力。

In addition, based on process calculations and soft sensor technology, the author built a online and real time mechanism models which can calculate the quality parameters of unmeasured distillate from fractionating tower, and used them as controlled variable of RMPCT Controller.

另外，利用软测量技术，在工艺计算的基础上建立机理模型，在线、实时地计算出不可测的分馏塔各馏分油产品的质量指标，作为RMPCT控制器的受控变量。

The company occupies over 18,000 square meters, the existing set of high-performance vacuum fractionating tower, a high-performance gas chromatograph devices, many sets of reactor, high temperature oil, one Taiwan.

公司占地18000多平方米，现有一套高效减压分馏塔，一套高效气相色谱仪装置，反应罐多套，高温油锅一台。

The simulation results show good agreement with the industrial process mechanism. In order to describe the oil trap structure of the main fractionating tower, the basic tray model is improved by embedding oil trap model.

还针对燕化延迟焦化装置分馏塔中存在的集油器结构的特点，对分馏塔的基本塔段模型进行改进得到了含集油器结构的塔段模型。

To solve the practical problem where the temperature field distribution is low at the lower part of furnace chamber and high at the upper part and the temperature difference is untolerable , which is reflected by the thermocouples at site, the authors take the methods of multipoint test and computer hologram simulation to research into the fields in the furnace chamber of the zinc fractionating tower at Shaoguan Smelter CNNC.

针对锌精馏炉炉膛各检测点反映出的其上部温度偏高，下部温度偏低，上下温度偏差过大的实际问题，采用现场多点温度测试，结合炉膛内流场、浓度场、释热场和温度场数值仿真的方法对韶关冶炼厂二精馏系统进行研究；利用仿真结果中的流场扣浓度场数据，统计出实测中无法得到的各次空气和煤气在南1号至南4号各喷口的流量。

The delayed cooking equipment process mainly consists of heating furnace, coke drum, fractionating tower and some other simple units. Since the heating, coking and fractionating are focused on this study, heating furnace, coke drum and fractionating tower are established and the suitable solution way is selected.

延迟焦化装置流程主要包括加热炉、焦炭塔、分馏塔和其他一些简单单元设备，本论文分别对加热、焦化、分馏过程进行研究，建立了加热炉、焦炭塔、分馏塔模型并选择适宜的解法。

Topological optimization system of variable density method based on finite element software;2. Interface depths inversion of potential field data with variable density model;3. According to the characteristics of the cold insulation box of Fractionating tower, it is considered that the effect of inner-filling on the construction is related with the variable density, then the relative formulation in the condition of n.

根据分馏塔保冷箱的特点，认为内填料对结构的作用与变密度有关，推导了无水平位移下的相关公式；对此结构在有水平位移下内填料的发育进行仿真分析，并将内填料的作用与结构的楼层柱的旋转角建立联系；最后根据得到的结论对分馏塔保冷箱在风与内填料作用下进行了非线性分析，得到结构的极限承载力。

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。