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DISTILLATION: Diagnosing Instabilities In the Column Overhead

Kister, Henry Z ; Litchfield, James F

Chemical Engineering, 2004-09, Vol.111 (9), p.56

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Título:
DISTILLATION: Diagnosing Instabilities In the Column Overhead
Autor: Kister, Henry Z ; Litchfield, James F
Assuntos: Bubbles ; Chemical engineering ; Distillation apparatus ; Fault diagnosis ; Hydraulics
É parte de: Chemical Engineering, 2004-09, Vol.111 (9), p.56
Descrição: Problems that involve the internals of a distillation tower have received a respectable amount of attention in the practical engineering literature. But one cannot say the same for ones involving the tower overhead. This lack is surprising, because there is considerable potential for flawed design and for operating difficulties involving elevated equipment associated with distillation columns. This article presents three real-life examples. Although the specifics differ widely, these instances shared the following attributes: 1. In each case, a minor flaw kept the equipment from achieving anywhere near its full potential. 2. A key to the correct diagnosis consisted of knowing the ultimate equipment capacity and recognizing that the equipment performance was well short of its capability. 3. Another key to correct diagnosis lay in performing a hydraulic analysis that combined basic calculations with field tests and observations. 4. In each case, the correct diagnosis led to simple, inexpensive modifications. Sledge hammers were not used.
Editor: New York: Access Intelligence LLC
Idioma: Inglês

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