• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Fluidized-Bed Reactor Modeling for Polyethylene Production
【24h】

Fluidized-Bed Reactor Modeling for Polyethylene Production

机译：聚乙烯生产的流化床反应器建模

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

Gas-phase technology for polyethylene production has been widely used by industries around the world.A good model for the reactor fluid dynamics is essential to properly set the operating conditions of the fluidized-bed reactor.The fluidized-bed model developed in this work is based on a steady-atate model, incorporating interactions between separat bubble,emulsion gas phase,and emulsion solid polymer particles.The model is capable not only of computing temperature and concentration gradients for bubble and emulsion phases,calculcting polymer particle mean diameter throughout the bed and polyethylene production rate,but also of pinpointing the appearance of hot spots and polymer meltdown.The model differs from conventional well-mixed fluidized-bed models by assuming that the particles segregate within the bed according to size and weight dufferences.The model was validated using literature and patent data,presenting good representation of the behavior of the fluidized-bed reactor used in ethylene polymerization.
机译：聚乙烯生产的气相技术已被世界各地的工业广泛使用。一个良好的反应器​​流体动力学模型对于正确设置流化床反应器的运行条件至关重要。基于稳态模型，结合了分离气泡，乳液气相和乳液固体聚合物颗粒之间的相互作用。该模型不仅能够计算气泡和乳液相的温度和浓度梯度，还可以计算整个床层的聚合物颗粒平均直径该模型不同于常规的充分混合的流化床模型，该模型假定颗粒根据尺寸和重量差异而在床内分离，因此该模型不同于常规的充分混合的流化床模型。使用文献和专利数据，很好地表示了所用流化床反应器的行为在乙烯聚合中。

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