| 1. | Preventing a distillation tower of fccu from salt gathering
防止催化裂化分馏塔结盐研究 |
| 2. | The rundown of stripper bottom product is by level control acting on the fractionator furnace pass control valves
汽提塔底产品的排出由液位控制，该液位控制调控分馏塔加热炉通道控制阀。 |
| 3. | Hangyang will supply fire - new distillation unit system : lp column , mp column , argon tower , cold box and other main equipments inside cold box
杭氧提供全新的分馏塔系统：上、下塔、氩塔、冷箱及冷箱内其它主要设备。 |
| 4. | Furthermore , the online self - learning problem of soft sensor model was also discussed . finally , the built model was used in an industrial fccu
在此基础上，将该混合模型应用于实际工业催化裂化装置主分馏塔轻柴油凝固点的在线估计问题。 |
| 5. | The liquid drawn off from the bottom of the first fractionating column , the primary fractionating column , is fractionated again in another column under low pressure
从第一个分馏塔即初分塔底部下来的液体，再在低压下进入其余的分馏塔分馏。 |
| 6. | The stabilised naphtha is routed to the naphtha splitter on level control of the debutaniser bottom product compartment ( cascaded through a flow controller )
在脱丁烷塔底产品室液位控制下(通过一个流量控制器串级) ，稳定石脑油被引到石脑油分馏塔。 |
| 7. | Definition of the multivariable control strategy has been provided in sufficient detail with emphasis on the regenerator control , cracking conversion control , pressure balance control , main fractionator bottom control and cracking yields control
从烧焦控制、裂化苛刻度控制、压力平衡控制、分馏塔底控制和裂化产率优化控制等五方面详细论述了反应-再生系统的控制策略。 |
| 8. | 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 . were obviously improved , which resulted in increasing conversion and light oil yield
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。 |
| 9. | To verify the effectiveness of the proposed hybrid fnn , this thesis addressed the estimation problem for the frozen point of light cyclic oil in a fluidized catalytic cracking unit ( fccu ) in a refinery . based on the sample data collected from the industrial unit , we built a soft sensor model by using an above hybrid fnn
最后，针对某炼油厂催化裂化装置主分馏塔轻柴油凝固点的软测量估计问题，本文基于工业现场所采集的样本数据，建立了混合结构神经网络模型，并讨论该模型的在线自学习问题，同时与多层前向bp网络、径向基函数rbf网络模型进行了比较。 |
| 10. | We can get the unqualified light hydrocarbon back to fractional tower to resume fractionating which greatly insures the quality , we combine the science and technology tackle project from da qing natural gas company - the research on microcomputer detection and control system in light hydrocarbon blending crude oil , analyze the machining technology of production device in gas disposing station , study the physical and chemical character of impurity blending in the light hydrocarbon and establish the detection scheme finally
并让不合格的产品重新回到分馏塔中进行重新分馏加工，以确保产品质量。本文结合大庆天然气公司的科技攻关项目? ?轻烃含原油微机测控系统研制，对一分公司油气处理站的轻烃生产设备进行了生产工艺流程分析，同时也对轻烃和混入的原油杂质进行物理和化学性质的分析，确立了监控设计方案。 |
