This heat-pump system can reduce energy consumption for various product separations
Various heat-pump systems are used on distillation applications.1-3
Distillation is an energy-intensive process regardless of the
products being separated. Any energy-reduction effect will
definitely decrease unit costs for the distilled products. Steam
ejectors have been used in limited distillation applications. They
are the simplest and most inexpensive heat-pump system for
distillation columns.3 In earlier designs, vapors from the column
are mixed with motive steam in the ejector; thus, these
applications were limited.
New ejectors can be designed to use products from the distillation
column as the motive vapor, thus overcoming past disadvantages.
Further improvements can
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