分馏的

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 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。

Through process simulation and optimization, a double-tower process with depropanizer and propane fractionator and without deethanizer is presented for gas fractionation as well as optimized process conditions of different units.

通过装置的流程模拟和优化，提出了气体分馏装置新双塔流程(无脱乙烷塔，只有脱丙烷塔和丙烯精馏塔)，以及各装置的优化工艺条件。

A new kind of PFC-PID control method is proposed for nonlinear industrial coking equipment with applications to chamber pressure control of coking furnace.and liquid level control of fractionator. Real-time operations have shown improved control performance.

7针对炼油工业中的非线性焦化生产装置提出了一种PFC-PID控制方案并成功地应用到加热炉炉膛压力和分馏塔液位的控制中，实际运行取得了明显效果。

Ethylene quench system is the first step of Ethylene pyrolysis gas disposal. The Gasoline fractionator is the most difficult tower in technology among all the ethylene plant's units.

急冷系统是乙烯裂解气处理的第一道工序，汽油分馏塔是乙烯装置中技术难度最大的设备。

A new calculation method, Lagrangian interpolation, is proposed to predict the ASTM D86 data, densities and yields of naphtha and light gas oil after the adjustment of naphtha end point in the operation of FCC main fractionator.

利用拉格朗日插值法在FCC主分馏塔的汽油干点调整后，对汽油和柴油恩氏蒸馏数据、密度和流量等的相应变化进行预测。

Carbon isotopic discrimination Δ~(13C of fossil Liquidambar is mainly related toenvironmental factors, such as irradiation, temperature, other than atmospheric CO_2concentration and water availability.

校正后的化石枫香碳同位素分馏值△~(13C受环境因素的综合影响，可能来自于光照、温度等，但是与大气CO_2浓度和水分没有关系或关系很小。

3Asphalt fractionated by evaporation results from the mixing of light paraffin series generated in the later stage and normal or heavy oils generated in the earlier, resulting in the precipitation of asphalt from liquid oil because of the unstable state.

燕发分馏沥青是指晚期生成的轻质石腊族烃与早期生成的正常原油或稠油相混，造成不稳定状态，造成沥青从液态石油中析出。

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。