分馏

With the development of determination technique, the fractionation of the stable chlorine isotope was verified, attracting many people＇s attention.

随着测定技术的不断发展，氯同位素的分馏效应逐渐得到证实，并引起了人们的广泛关注。

The operation and control interaction analysis between main fractionator and stabilizer of FCCU was studied.

研究分析了催化裂化装置的主分馏塔与稳定塔之间操作控制的关联性。

A new method establishing models of FCC main fractionator was proposed.

李鹏提出一种新的催化裂化主分馏塔建模方法。

All of the mass and energy in the main fractionator system are supplied to the system by the reactor and regenerator.

主分馏器里所有的反应物和能量都是由反应堆和交流热换器提供的。

In this paper, software PRO/Ⅱis adopted to simulate the whole flowthat is main fractionator system and absorption-stabilization system.

催化裂化是炼油厂中重要的二次加工过程，但其主分馏塔和吸收稳定系统面临生产扩能、产品质量改善和节省能耗几大问题的困扰。

The invention comprises the step of adding a foam reducing amount of a foam reducing composition at the primary fractionator.

本发明包括将减少泡沫量的消泡组合物加到初分馏塔处的步骤。

The operation and control interaction analysis between main fractionator and stabilizer of FCCU is given.

stabilizer control ； system design ；分析了催化裂化装置稳定塔的先进控制问题，讨论了主分馏塔与稳定塔之间操作控制的关联性，基于状态反馈预测控制，根据装置的操作运行情况及关联性分析，使用现有的测点，对稳定塔建立了用于实时控制的简化状态空间数学模型，以在线计算稳定汽油饱和蒸汽压作为被控变量，设计了稳定塔先进控制系统。

The industrial application showed that the key process parameters, such as the regenerator dense phase temperature and the temperature under the first tray of the fractionator bottom, etc.

工业实践表明，应用此控制明显地改善了对再生催化剂温度、分馏塔底第一层板下温度等关键工艺参数的控制，提高了装置的转化率与轻油收率。

A fast simulation system for FCC main fractionator was developed by using the distillation data of oil product,experiential charts and correlations in petroleum refining industry.

基于油品的蒸馏数据，利用炼油工业中已积累的一整套经验图表和经验关联式，开发了一个快捷的催化裂化主分馏塔模拟系统。

Serious coking occured at the fractionator oil and gas inlet in FCC unit of the No.

中国石油天然气股份有限公司原长庆油田第一助剂厂催化裂化装置分馏塔反应油气入口结焦严重。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。