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Webinar - Debottlenecking of a Large Industrial Deethanizer by Gravity Driven Two-Phase Flow Analysis < Back to News

Mar 29, 2020
April 22, 2020 - Webinar Registration - Now Open!

Debottlenecking of a Large Industrial Deethanizer by Gravity Driven Two-Phase Flow Analysis

A large industrial deethanizer in a NGL fractionation plant exhibited performance issues in its dehydration section since start-up.   This problem forced the operations team to reduce rates and to operate at higher than design pressure to avoid hydrates.  Troubleshooting efforts to resolve the problem included mechanical and hydraulic analysis of the internals and performing several column gamma scans.  The mechanical integrity of the internals was suspected to be part of the problem. However, several gamma scans on the tower showed flooding conditions in the top of the dehydration section.  A fluid dynamics analysis of the hydrocarbon drain pipe bypassing the dehydration section indicated the presence of two-phase flow. 

The two-phase flow in the drain pipe explained the flooding conditions at the top of the dehydration section.  A gamma scan of the drain pipe was performed and confirmed specific gravity differences at different elevations.  The implementation of simple but unique piping modifications addressed the multiphase flow in the hydrocarbon line.  The deethanizer is currently operating at normal production rates.

Today, practicing engineers are still unable to predict with confidence whether a two-phase flow will develop.   Many similar piping configurations are found in the chemical process industry, and this webinar attempts to provide insights to prevent a recurring design problem. 

About the Speaker: Dr. J. Antonio Garcia

Dr. Garcia is a Mass-Transfer Business Development Manager at AMACS Process Tower Internals, he joined AMACS in 2014.  Holds a Ph.D. degree from The University of Texas at Austin (USA) and a M. Sc. and B.Sc.  from Celaya and Durango Institute of Technology (Mexico), all in Chemical Engineering. Before joining AMACS, he worked for Raschig, Sulzer, Praxair, DuPont, Koch-Glitsch and the Separations Research Program (SRP) now known as James R. Fair Process Science and Technology Center (PSTC).
Dr. Garcia has experience in troubleshooting and debottlenecking commercial high purity, high pressure, foaming and fouling cryogenic processes.  Led R&D projects on high performance and conventional mass transfer equipment. 

Author of several refereed papers and presentations on distillation and liquid-liquid extraction. 

Member of American Institute of Chemical Engineers (AIChE), American Chemical Society (ACS) and Sigma XI Research Society and a former member of FRI Technical Committee (Chemical companies).

Details and Registration

The webinar includes a 40 minute presentation followed by a 20 minute Q&A. To register for the April 22, 2020 - Webinar Registration webinar, use a button below to go to the session, select your time zone and choose either 10:00 am CT or 8:00 pm CT, whichever is more convenient. An email with log-in instructions will be sent to the email address provided.