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总进料
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  total feed
     TDC3000 system executes conventional control and advanced control for SRTⅣ model HC cracking heater including coil temperature balance and flow rate control of total feed,temperature control of average COT, dilution steam ratio control,cracking heater start-up and shutdown sequence control and on-line coking program.
     :TDC3000系统完成SRTⅣ型重质油裂解炉的常规控制和先进控制,包括炉管温度平衡和总进料流量控制、平均炉管出口温度控制、稀释蒸汽比控制、裂解炉开/停车程序、在线烧焦程序。
短句来源
     Calculations of varying steam/hydrocarbon ratio proposed that suitable total feed(i.e.inlet velocity of fluid) to reactor was very important for controlling the coking process in tube.
     通过改变汽烃比的计算,提出适当的总进料量(炉管入口流速)对控制结焦很重要。
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  “总进料”译为未确定词的双语例句
     They were:conditions of acidand alkaline reaction,overall F/U(mol) of the feed,and F/U during condensation.
     这包括:反应的酸、碱性条件、总进料 F/U(mol)以及缩合时的 F/U。
短句来源
     The optimum reaction conditions were as follows: activating water amount 1%, feed temperature 200 ℃, reaction temperature 200~210 ℃ at incipience of catalyst; reaction pressure 4.0~4.5 Mpa at incipience of catalyst, reaction temperature 220~230 ℃ at telophase of catalyst, reaction pressure 4.5~5.5 Mpa at telophase of catalyst.
     最佳反应条件是:活化水质量流量约占总进料质量流量的1%,进料温度为200℃,催化剂初期反应温度为200~210℃,反应压力为4.0~4.5MPa,催化剂末期反应温度为220~230℃,反应压力为4.5~5.5MPa。
短句来源
     and the fluence to molecular weight distribution was T> Qtota\ > v.
     对分子量分布指数的影响大小依次为:反应温度>总进料流量>进料配比。
短句来源
     To maximize the yield of the plant and Mw, optimization of operation parameters was studied, the yield increased more than 10% with optimized operation parameters, in the case of Mw not being changed.
     3、使用Aspen中的优化工具进行了产量最大化和生产高分子量聚合物的操作参数优化研究:降低预聚反应器温度、升高后聚反应器温度和增大总进料量流量,在不改变聚合物质量的前提下,可提高产量10%以上;
短句来源
     The plant could produce polystyrene with Mw up to 320,000,when the conversion of styrene was no less than 60%.
     总进料流量为5850kg/h左右,降低反应器温度,在保证单体转化率不低于60%的前提下,工业装置可生产重均分子量为32万的高分子量聚苯乙烯。
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     General Advisor
     本刊顾问
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     IRONMAKING SUM CONTENTS IN BRIEF
     《炼铁》目次
短句来源
     inlet temperatureis 630℃;
     进料温度为630℃;
短句来源
     and the fluence to molecular weight distribution was T> Qtota\ > v.
     对分子量分布指数的影响大小依次为:反应温度>进料流量>进料配比。
短句来源
     They were:conditions of acidand alkaline reaction,overall F/U(mol) of the feed,and F/U during condensation.
     这包括:反应的酸、碱性条件、进料 F/U(mol)以及缩合时的 F/U。
短句来源
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  total feed
The optimum inlet temperature and recycle ratio are determined as a function of the total feed rate.
      
The optimum inlet temperature and recycle ratio are determined as a function of the total feed rate.
      
of the total feed this resulted in medium goitrin values of 37, 163 and 707 μg/l milk.
      
Total feed intake averaged 12% of body mass; dry matter intake was 3%.
      
Pine needle accumulation under the higher tree stockings depressed the quality of the total feed on offer.
      
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Qualitative and quantitative analyses of urea formaldehyde resins were madeby measurement of T_1 and ~(13)C spectra of the resins using inversion recovery andinverted gated decoupling.Influence of various conditions on the chemical struc-ture of the resulting resin solutions was studied.They were:conditions of acidand alkaline reaction,overall F/U(mol) of the feed,and F/U during condensation.Relationships beween the chemical structure of resulting resin solutions andoperational performance were discussed.

用倒转恢复和反门控去偶技术测定脲醛树脂(简称 UFR)的 T_1和~(13)C 定量谱,对 UFR 进行了定性、定量分析。研究了不同反应条件对 UFR 溶液化学结构的影响。这包括:反应的酸、碱性条件、总进料 F/U(mol)以及缩合时的 F/U。讨论了化学结构与使用性能的关系。

The regression analysis on gasoline research octane number(RON)versus6 operation parameters in the Northern FCCU of Fushun №.2 Refinery byusing 22 sets of operating data obtained successively in 5 months is presented.It shows that 3 parameters,i.e,reaction temperature,pressure,and catalystactivity are significant factors,whereas vapour pressure of gasoline,recycleratio and total feed slide-valve opening are nonsignificant.2 regression equa-tions are given.Under the present operation conditions,to properly select...

The regression analysis on gasoline research octane number(RON)versus6 operation parameters in the Northern FCCU of Fushun №.2 Refinery byusing 22 sets of operating data obtained successively in 5 months is presented.It shows that 3 parameters,i.e,reaction temperature,pressure,and catalystactivity are significant factors,whereas vapour pressure of gasoline,recycleratio and total feed slide-valve opening are nonsignificant.2 regression equa-tions are given.Under the present operation conditions,to properly select the3 significant factors only will probably maintain the RON level consistentlyabove 88,an increase of 1.2 units than before.

本文根据石油二厂北催化裂化装置1990年1月至5月的22组连续工业生产数据,对6个工艺操作参数与汽油研究法辛烷值的关系做了回归分析,确定出反应温度、反应压力和催化剂活性为显著性因子,而汽油蒸气压、回炼比和总进料/滑阀开度为不显著性因子,给出了回归方程。按当前操作条件,只要对3个显著性因子合理取值,预计汽油研究法辛烷值可稳定在88以上,可较前提高1.2个单位以上。

TDC3000 system executes conventional control and advanced control for SRTⅣ model HC cracking heater including coil temperature balance and flow rate control of total feed,temperature control of average COT, dilution steam ratio control,cracking heater start-up and shutdown sequence control and on-line coking program.VAX computer executes the optimum control of cracker (cracking severity control)

:TDC3000系统完成SRTⅣ型重质油裂解炉的常规控制和先进控制,包括炉管温度平衡和总进料流量控制、平均炉管出口温度控制、稀释蒸汽比控制、裂解炉开/停车程序、在线烧焦程序。VAX机完成裂解炉的优化控制(裂解深度控制)。

 
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