• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>National Industrial Energy Technology Conference; 20040420-23; Houston,Texas(US) >Divided Wall Column WITHOUT the Wall
【24h】

Divided Wall Column WITHOUT the Wall

机译：无墙分隔墙

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

Divided wall column (DWC) separates a feed stream into three product streams with a single column instead of a traditional two-column arrangement. DWC is a modified PETLYUK column, which was first presented around 1950, known as fully thermally coupled column. The PETLYUK column holds the benchmark in thermodynamic efficiency. DWC is more common in Europe but are beginning to gain popularity in North America due to capital cost benefits and increasing energy conservation awareness. DWC is literally a column with a longitudinal partition inside, separating the pre-frac and the main-frac. The fixed internals, obviously, leave little room for internal liquid / vapor traffic adjustments. Without such flexibility, feed quality change becomes a product spec control concern. A novel design arrangement provides practically unlimited hydrostatic head for vapor / liquid splits control between the pre-frac and main-frac, and in the process, surpasses the thermodynamic efficiency benchmarked by the PETLYUK column.
机译：分隔壁塔（DWC）可以用一个塔将进料流分成三个产品流，而不是传统的两塔布置。 DWC是一种改良的PETLYUK色谱柱，于1950年左右首次出现，称为全热耦合色谱柱。 PETLYUK色谱柱在热力学效率方面保持基准。 DWC在欧洲更为常见，但由于资金成本优势和不断增强的节能意识，DWC在北美开始流行。 DWC实际上是一列，内部具有纵向分隔线，将预压裂和主压裂分开。显然，固定的内部构件几乎没有空间调节内部的液体/蒸气流量。没有这种灵活性，饲料质量的变化就成为产品规格控制的关注点。一种新颖的设计方案提供了几乎无限的静水压头，可控制预压裂和主压裂之间的蒸汽/液体分流，并且在这一过程中，其性能超过了PETLYUK色谱柱所确定的热力学效率。

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