馏分

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。

The proposed method has been evaluated by a nonlinear function example and applied to a practical case of modeling product quality of hydrocracking fractionator. The obtained results demonstrate the promise of this approach for improving nonlinear soft sensing modeling.

此算法通过一个复杂非线性函数的仿真建模和一个分馏塔柴油倾点软测量建模的工业实例研究，结果表明比其它算法具有更好的泛化结果和预报精度，具有良好的在线应用潜力。

Catalytic cracking ; fractionator ; naphtha ; end point ; computer application ; prediction

催化裂化；分馏塔；汽油；干点；计算机应用；预测

Based on the BP network, RBF network and PLS algorithm the model of soft sensor for the dry point of jet fuel in hydrocracking fractionator has been developed.

基于BP网络、RBF网络、PLS算法建立了加氢裂化分馏塔航空煤油干点软测量模型。

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。

In the production of refinery, the normal operation of the catalytic cracker unit is often affected by the coke formation in the oil-gas pipeline between the settler and fractionator.

炼油厂催化裂化装置沉降器至分馏塔之间的油气管线，在生产过程中容易结焦而影响装置的正常运转。通过几种方案的分析对比，选择并采用高压水射流技术进行清洗。

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。

Argon provides an inert gas shield in welding and brazing, in lightbulbs and lasers, in Geiger counter s, and in the production and fabrication of certain metals.

氩是以液态空气分馏法大规模分离制备的，已用于为电灯泡、电子管和盖格计数器充气。

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。