In the present work a new probe based on the measurement of the electrical capacitance has been developed and tested. The probe is designed to measure local liquid hold-up in columns equipped with structured packings and it can therefore be used to evaluate the presence of the liquid hold-up gradient inside each packing element in the column. Evaluation of the liquid hold-up gradient is helpful to identify locations inside the packing element where flooding begins and to suggest packing design modifications. The main advantages of this new probe are that it is non-intrusive, it allows fast and on-line measurements, and it can be used for laboratory scale columns as well as for industrial applications.
A new probe for measuring local liquid holdup in column equipped with structured packings
BRUNAZZI, ELISABETTA;PINTUS, SANDRO
2001-01-01
Abstract
In the present work a new probe based on the measurement of the electrical capacitance has been developed and tested. The probe is designed to measure local liquid hold-up in columns equipped with structured packings and it can therefore be used to evaluate the presence of the liquid hold-up gradient inside each packing element in the column. Evaluation of the liquid hold-up gradient is helpful to identify locations inside the packing element where flooding begins and to suggest packing design modifications. The main advantages of this new probe are that it is non-intrusive, it allows fast and on-line measurements, and it can be used for laboratory scale columns as well as for industrial applications.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
