过程系统工程(process system engineering,简称PSE)的各项技术在石化科技创新的各个环节发挥着越来越重要的作用,本文介绍PSE的各项技术在石化工艺开发、催化材料研究和新产品设计、反应机理研究中的应用背景、应用过程和若干典型应用...过程系统工程(process system engineering,简称PSE)的各项技术在石化科技创新的各个环节发挥着越来越重要的作用,本文介绍PSE的各项技术在石化工艺开发、催化材料研究和新产品设计、反应机理研究中的应用背景、应用过程和若干典型应用结果。针对科技创新与生产经营越来越紧密的趋势,讨论了PSE技术在促进过程控制与优化集成技术的开发、新仪器研发,并介绍了PSE技术在原油加工流程优化和生产调度优化等领域的应用前景。指出了PSE技术在石化科技创新中进一步应用的方向。展开更多
To improve the dust removal performance of the wet electrostatic precipitator(WESP), a flow field optimization scheme was proposed via CFD simulation in different scales. The simplified models of perforated and collec...To improve the dust removal performance of the wet electrostatic precipitator(WESP), a flow field optimization scheme was proposed via CFD simulation in different scales. The simplified models of perforated and collection plates were determined firstly. Then the model parameters for the resistance of perforated and collection plates, obtained by small-scale flow simulation, were validated by medium-scale experiments. Through the comparison of the resistance and velocity distribution between simulation results and experimental data, the simplified model is proved to present the resistance characteristics of perforated and collection plates accurately. Numerical results show that after optimization, both the flow rate and the pressure drop in the upper room of electric field regions are basically equivalent to those of the lower room, and the velocity distribution in flue inlet of WESP becomes more uniform. Through the application in practice, the effectiveness and reliability of the optimization scheme are proved, which can provide valuable reference for further optimization of WESP.展开更多
文摘过程系统工程(process system engineering,简称PSE)的各项技术在石化科技创新的各个环节发挥着越来越重要的作用,本文介绍PSE的各项技术在石化工艺开发、催化材料研究和新产品设计、反应机理研究中的应用背景、应用过程和若干典型应用结果。针对科技创新与生产经营越来越紧密的趋势,讨论了PSE技术在促进过程控制与优化集成技术的开发、新仪器研发,并介绍了PSE技术在原油加工流程优化和生产调度优化等领域的应用前景。指出了PSE技术在石化科技创新中进一步应用的方向。
文摘To improve the dust removal performance of the wet electrostatic precipitator(WESP), a flow field optimization scheme was proposed via CFD simulation in different scales. The simplified models of perforated and collection plates were determined firstly. Then the model parameters for the resistance of perforated and collection plates, obtained by small-scale flow simulation, were validated by medium-scale experiments. Through the comparison of the resistance and velocity distribution between simulation results and experimental data, the simplified model is proved to present the resistance characteristics of perforated and collection plates accurately. Numerical results show that after optimization, both the flow rate and the pressure drop in the upper room of electric field regions are basically equivalent to those of the lower room, and the velocity distribution in flue inlet of WESP becomes more uniform. Through the application in practice, the effectiveness and reliability of the optimization scheme are proved, which can provide valuable reference for further optimization of WESP.
