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Distillation Column Flooding Predictor (open access)

Distillation Column Flooding Predictor

The Flooding Predictor™ is a patented advanced control technology proven in research at the Separations Research Program, University of Texas at Austin, to increase distillation column throughput by over 6%, while also increasing energy efficiency by 10%. The research was conducted under a U. S. Department of Energy Cooperative Agreement awarded to George Dzyacky of 2ndpoint, LLC. The Flooding Predictor™ works by detecting the incipient flood point and controlling the column closer to its actual hydraulic limit than historical practices have allowed. Further, the technology uses existing column instrumentation, meaning no additional refining infrastructure is required. Refiners often push distillation columns to maximize throughput, improve separation, or simply to achieve day-to-day optimization. Attempting to achieve such operating objectives is a tricky undertaking that can result in flooding. Operators and advanced control strategies alike rely on the conventional use of delta-pressure instrumentation to approximate the column’s approach to flood. But column delta-pressure is more an inference of the column’s approach to flood than it is an actual measurement of it. As a consequence, delta pressure limits are established conservatively in order to operate in a regime where the column is never expected to flood. As a result, there is much “left …
Date: November 23, 2010
Creator: Dzyacky, George E.
System: The UNT Digital Library
La Línea Verde (Green Line) del Tren de DART crea nuevas conexiones y completa el proyecto de construcción de tren eléctrico más largo de la nación (open access)

La Línea Verde (Green Line) del Tren de DART crea nuevas conexiones y completa el proyecto de construcción de tren eléctrico más largo de la nación

News release about the opening of DART's Green Line and accommodating updates in bus and TRE service.
Date: November 23, 2010
Creator: Lyons, Morgan & Ball, Mark
System: The Portal to Texas History
DART Rail Green Line creates new connections, completes nation's longest light rail construction project (open access)

DART Rail Green Line creates new connections, completes nation's longest light rail construction project

News release about the opening of DART's Green Line and accommodating updates in bus and TRE service.
Date: November 23, 2010
Creator: Lyons, Morgan & Ball, Mark
System: The Portal to Texas History