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Distillation: Energy Savings and Other Benefits From the Use of High Efficiency Packings
Abstract
A great deal of attention has been focused
lately on the use of high-efficiency packings for
distillation applications. This paper discusses
benefits that can be derived from the use of these
devices. In particular, the reduction in energy
requirements for a given separation is addressed for
both new and retrofit applications. Pressure loss
and product decomposition are also considered, and
the basis for an alternative analysis is
established.
An example is shown in which an existing
distillation tray column is retrofitted with a high-efficiency
packing. The process advantages
achieved, including energy savings, are discussed,
as well as the factors governing the selection of
the packing. The current limitations on design
models for high-efficiency packings with respect to
mass transfer efficiency, pressure drop, and
capacity in distillation are mentioned briefly.
Finally, the applications of these devices to
alternative technologies such as liquid-liquid
extraction are discussed.
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Citation
Bravo, J. L.; Fair, J. R.; Humphrey, J. L. (1985). Distillation: Energy Savings and Other Benefits From the Use of High Efficiency Packings. Energy Systems Laboratory (http://esl.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /93106.