• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Separation and Purification Technology >Membrane oscillation and oil drop rejection during produced water purification
【24h】

Membrane oscillation and oil drop rejection during produced water purification

机译：采出水净化过程中的膜振荡和甩油

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Removal of crude oil droplets from produced water has been evaluated using a Nickel membrane with a slotted pore width of 4 gm and length of 400 mu m. The membrane was oscillated at different frequencies that resulted in variable intensity shears at the membrane surface. The influence of membrane oscillations on oil droplet rejection was investigated and reported in this work. Membrane oscillations generated a lift for the surrounding particles which led the drops to move away from the membrane surface. Measurements have shown that the intensity of the droplet lift was linearly proportional to the intensity of the applied shear. Inertial lift velocity model reported in literature was used as a starting point which was coupled with the fluid's convection velocity. The model predicted 100% cut-off points through the membrane at various oscillation frequencies. Without the applied shear rate, the static and drag forces balanced each other, which was assumed to be the 100% cut-off point. With the applied shear rate, the inertial lift and convection velocities become equal and this point was referred to as 100% cut-off point. Overall mass of crude oil droplets in permeate flow was calculated knowing the 100% cut-off point and interfacial tension between the dispersed and continuous phases. (C) 2015 Elsevier B.V. All rights reserved.
机译：已经使用缝隙宽为4 gm，长度为400μm的镍膜评估了从采出水中去除原油滴的方法。膜以不同的频率振荡，从而在膜表面产生不同强度的剪切。在这项工作中，膜振动对油滴截留的影响已得到研究和报道。膜振荡产生了周围颗粒的升力，从而导致液滴从膜表面移开。测量表明，液滴提升的强度与所施加的剪切强度成线性比例。文献中报道的惯性升力速度模型被用作与流体对流速度耦合的起点。该模型预测在各种振荡频率下穿过膜的100％截止点。如果没有施加剪切速率，则静力和阻力会相互平衡，这被认为是100％的临界点。在施加剪切速率的情况下，惯性升力和对流速度变得相等，该点称为100％截止点。在知道分散相和连续相之间的100％临界点和界面张力的情况下，计算渗透液中原油滴的总质量。 （C）2015 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号