Corrections to “New mass transfer correlations for packed towers”

Authors

  • Brian Hanley,

  • Chau-Chyun Chen

Errata

This article corrects:

  1. New mass-transfer correlations for packed towers Volume 58, Issue 1, 132–152, Article first published online: 22 March 2011

We have discovered errors in tables 1 and 2 and figures, 10, 11, and 12 of our paper “New Mass Transfer Correlations for Packed Towers” (Volume 58(1), pp 132–152, DOI 10.1002/aic.12574) related to the reported performance of the Billet and Schultes correlation for mass transfer in packed columns (Billett R, Schultes M. “Prediction of mass transfer columns with dumped and arranged packings: updated summary of the calculation method of Billett and Schultes”, Trans Inst Chem Eng. 1999;77A:498–504). The errors arose because the implementation of the Billet and Schultes equations in our rate-based distillation code overlooked the stipulation that, for systems where the surface tension is less than 0.03 N/m, 0.03 N/m should be used instead of the actual surface tension. The updated tables and figures are shown here. We apologize for any inconvenience this oversight may have caused.

1, 210-12

Table 1. Experimental results from Kister8 and Schultes9.
SystemPressure (torr)PackingHETP (Billet)5HETP (BF82)4HETP (Onda)3HETP (Aspen)HETP (Expt)
  1. In all cases the countercurrent flow model was used. All experiments at total reflux. HETPs are reported in cm. Abbreviations - PG: propylene glycol, EG: ethylene glycol, EB: ethylbenzene, SM: styrene.

C6/n-C77602” Pall ring5025.471.158.463-718
1,2PG/EG102” Pall ring63.586.4142.2106.796.58
EB/SM1003½” Pall ring63.563.5142.255.973.78
EB/SM1001½” Pall ring58.425.443.245.840–488
EB/SM100⅝” Pall ring40.615.2193328–388
p/o-xylene50⅝” Pall ring40.620.317.13335–388
i-C4/n-C485332” Pall ring5225.453.348.3519
i-octane/tol7601” Pall ring44.51421.339.940.68
i-octane/tol7602” Pall ring48.62849.55066–718
D2O/H2O350HY-PAK #164.81430.534.848.28
Table 2. Experimental results from Kister8, Fitz, et al.10, Agrawal, et al.11, and Kean, et al.12
SystemPressure (torr)PackingHETP (Billet)5HETP (BRF85)6HETP (BF92)7HETP (Aspen)HETP (Expt)
  1. In all cases the countercurrent flow model was used. All experiments at total reflux. HETPs are reported in cm. Abbreviations – CB: chlorobenzene, EB: ethylbenzene, TEG: triethylene glycol.

Ar/O21550Flexipac 500Y29.519.122.117.617.511
p/o – xylene16Mellapak 250Y38.135.650.84133.010
p/o – xylene100Flexipac 700Y23.69.114.717.320.310
CB/EB76Mellapak 350Y29.224.833.027.426.78
CB/EB76Mellapak 500Y30.527.927.922.422.98
i-C4/n-C48533Mellapak 250Y4231.825.424.121.6–3110
C6/n-C71241Flexipac 250Y4040.635.630.538–4110
cis-/trans- decalin304Mellapak 250Y36.741.939.438.133–35.68
TEG/H2O/CH431030Flexipac 250Y472.4348.01193.8140167.612
Figure 10.

Comparison of correlation predictions with experimental data for metal IMTP.

Figure 11.

Comparison of correlation predictions with experimental data for metal Pall rings.

Figure 12.

Comparison of correlation predictions with experimental data for sheet metal structured packings.

Ancillary

Advertisement