Evaluation of Packed Distillation Columns

The Effect of Maldistribution on Separation in Packed Distillation Columns

For a packed bed in a distillation column, fmax is the maximum fractional liquid maldistribution that can be tolerated in a parallel column model whilst still being able to achieve the design separation. It was previously shown that fmax can be easily calculated from a conventional column simulation output and it is a measure of the sensitivity of a packed bed to maldistribution. In this paper,...

Thermally-coupled Columns: Distillation

&Waxes. Berlin: Springer-Verlag. Recent Trends in Flavour Evaluation of Spices Newer Trends in Essential Oils and Flavours (1991) New Delhi, India: Tata MacGraw-Hill Publishing Co. Svendsen and Scheffer (1985) Essential Oils and Aromatic Plants. Dordrecht, The Netherlands: Junk Publishers. Sweig G and Sherma J (1984)CRCHandbook of Chromatography, Terpenoids, vol. 1. Boca Raton, Florida: CRC Pre...

Three-phase Distillation in Packed Columns: Guidelines for Development, Design and Scale-up

INTRODUCTION Multi stage distillation processes are normally operated in columns, equipped with trays or packing to obtain counter current flow of vapour and liquid. In tray columns the liquid is moving from the inlet over the active area to the exit downcomer. The necessary mass transfer area between the phases is achieved by intense mixing of vapour and liquid on the bubbling area. In packed ...

Distillation Startup of Fully Thermally Coupled Distillation Columns: Theoretical Examinations

The fully thermally coupled distillation column offers an alternative to conventional distillation towers, with the possibility of savings in both energy and capital costs. This innovative and promising alternative provides the opportunity to separate a multicomponent mixture into fractions with high purities merely in one column. A lack of knowledge still exists when dealing with the startup o...

Prediction of Mean Drop Size in Pulsed Packed Extraction Columns