Performance characteristics of a new structured packing
Performance characteristics of a new structured packing
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DOI：
10.1016/j.ces.2010.05.029
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发表时间：
2010-08
影响因子：
4.7
通讯作者：
Vincent Bessou;D. Rouzineau;M. Prévost;F. Abbé;C. Dumont;J. Maumus;M. Meyer
中科院分区：
文献类型：
--
作者：
Vincent Bessou;D. Rouzineau;M. Prévost;F. Abbé;C. Dumont;J. Maumus;M. Meyer
介绍了一种使用碳纤维的新型规整填料Sepcarb®4D。这种填料具有几个吸引人的特性，例如高空隙率（ε=94%）和高有效面积（a= 420 m2 m −3）。这些性质对于用作分离单元的气-液接触器的填料是有利的。为了确定这种填料的内部特性，我们使用内径为150 mm的色谱柱进行了几次实验。首先，流体力学实验进行了使用空气-水逆流流动，以确定压降（干和湿填料）和泛点。其次，传质效率的HETP（高度相当于理论塔板）方面确定的全回流实验与正庚烷/环己烷混合物在大气压下。并与蒸馏和吸收中常用的填料进行了流体力学性能和传质效率的比较。
A new structured packing using carbon fibres, called Sepcarb®4D, is presented. This packing has several attractive properties, such as high voidage (ε=94%) and high effective area (a=420m2m−3). These properties are advantageous for packing used as a gas–liquid contactor for separation units. To determine the internal characteristics of this packing, we performed several experiments using a 150-mm-internal-diameter column. Firstly, hydrodynamics experiments were conducted using an air–water counter current flow to determine the pressure drop (for both dry and wet packing) and flooding point. Secondly, the mass transfer efficiency was determined in terms of HETP (height equivalent to theoretical plate) by total reflux experiments with an n-heptane/cyclohexane mixture at atmospheric pressure. Hydrodynamic performance and mass transfer efficiency were compared with those of packings generally used in distillation and absorption.