Chemical Engineering Research and Design ( IF 3.9 ) Pub Date : 2021-05-30 , DOI: 10.1016/j.cherd.2021.05.026 T. Čmelíková , L. Valenz , E. Lyko Vachková , F.J. Rejl
We present pressure drop and HETP data for Sulzer MellapakPlus™ 452.Y packing measured using the C6/C7 system under total reflux at three pressures: 33 kPa, atmospheric pressure and 180 kPa. The data were obtained in a column with an inner diameter of 0.3 m with the bed consisting of 12 elements of packing (total height 2.52 m).
The pressure drop data under the loading point were in good agreement with the data predicted by Sulcol software (v3.4.4, vendor provided); in the loading region, the Sulcol data were on the safe side. The maximum stable FG factor for the three pressures were 2.79, 2.41 and 2.17 Pa0.5, respectively. The HETP values for the expected industrial operating load range were almost constant, with mean values of 0.29, 0.28, 0.27 m obtained, respectively. Because the measurements were performed with different compositions of the C6/C7 mixture, recalculation utilizing known HETP dependence on the slope of the equilibrium curve was used to suppress the dependence of the separation efficiency on the composition.
中文翻译:
MellapakPlus 452.Y 规整填料在蒸馏条件下的基本分离效率和水力数据
我们提供了 Sulzer MellapakPlus™ 452.Y 填料的压降和HETP数据,使用 C 6 /C 7系统在三个压力下测量:33 kPa、大气压和 180 kPa。数据是在内径为 0.3 m、床由 12 个填料元件(总高度 2.52 m)组成的柱中获得的。
加载点下的压降数据与Sulcol软件(v3.4.4,供应商提供)预测的数据吻合较好;在加载区域,Sulcol 数据是安全的。三种压力的最大稳定F G因子分别为 2.79、2.41 和 2.17 Pa 0.5。预期工业操作负载范围的HETP值几乎恒定,分别获得了 0.29、0.28、0.27 m 的平均值。因为测量是用 C 6 /C 7混合物的不同组成进行的,所以使用已知的HETP重新计算 平衡曲线斜率的依赖性被用来抑制分离效率对组成的依赖性。