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催化汽油加氢脱硫装置反应系统压降上升原因分析及对策 被引量:6
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作者 赵德强 姜鹏 《石油与天然气化工》 CAS 北大核心 2018年第2期26-30,共5页
自2010年12月31日开工以来,1.8×10~6 t/a催化汽油加氢脱硫装置在运行的两个周期内均发生了装置选择性加氢单元反应系统压降上升较快的情况,对炼厂生产平衡影响较大。通过分析找到了导致选择性加氢单元反应系统压降升高的原因,实施... 自2010年12月31日开工以来,1.8×10~6 t/a催化汽油加氢脱硫装置在运行的两个周期内均发生了装置选择性加氢单元反应系统压降上升较快的情况,对炼厂生产平衡影响较大。通过分析找到了导致选择性加氢单元反应系统压降升高的原因,实施了催化装置汽油直接供料、增设原料预过滤器、返罐区原料进催化装置回炼等多项改进对策,有效控制了压降上升的情况,效果显著。 展开更多
关键词 催化汽油 加氢脱硫装置 选择性加氢单元 反应系统 压降上升
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Peristaltic flow with convective mass condition and thermal radiation 被引量:1
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作者 F.M.Abbasi T.Hayat +1 位作者 B.Ahmad B.Chen 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第6期2369-2375,共7页
The primary objective of present investigation is to introduce the novel aspects of convective mass condition and thermal radiation in the peristaltic transport of fluid. Magnetohydrodynamic(MHD) fluid was considered ... The primary objective of present investigation is to introduce the novel aspects of convective mass condition and thermal radiation in the peristaltic transport of fluid. Magnetohydrodynamic(MHD) fluid was considered in a symmetric channel. Heat and mass transfer characteristics were analyzed in the presence of Soret and Dufour effects, and the results were presented via two forms of thermal radiation. The temperature, concentration and pressure rise per wavelength were examined. It is observed that the velocity slip and magnetic field parameters have opposite effects on the pressure rise per wavelength. Temperature of fluid is a decreasing function of the radiation parameter. Further, the temperature of fluid decreases by increasing the heat transfer Biot number. It is notified that the heat transfer rate at the wall is a decreasing function of radiation parameter. 展开更多
关键词 convective mass condition thermal radiation magnetohydrodynamic (MHD) fluid
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