Diagnosing the cause of off-spec production in a distillation column: A case study

Posted by Nicola Porter

Jul 21, 2016 7:53:47 AM

Tru-Scan™ and Tru-Grid™ scans are powerful tools that give you valuable insights into packed and trayed towers, tanks, pipes and more. Using this field-proven predictive maintenance technique on distillation columns allows plant personnel to monitor tray or packing hydraulics. A sophisticated monitoring programme can track the effects of fouling or other incapacitating conditions to extend run times and identify maintenance requirements in advance of scheduled turnarounds.

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Topics: Process Diagnostics, Distillation Column Performance, distillation tower scanning, distillation column maintenance, tower scan, gamma ray inspection distillation, gamma scan distillationcolumns, gamma scanning distillation columns, process diagnostics technologies, distillation column service, tower scanning, tracerco diagnostics, separation tower scanning, tower gamma scan, distillation tower scan, distillation column scan, distillation column scanning

How to diagnose liquid maldistribution in packed beds: A case study - Part 2

Posted by Nicola Porter

Jun 8, 2016 11:35:29 AM

This post is the second part of the "Diagnosing liquid maldistribution inside packed beds" series.

In the previous blog, we explained how Tracerco’s Tru-Grid™ Scan technologies can be used to diagnose suspected maldistribution in packed beds. In Part 2, we will discuss how we obtain more details on distribution within the packed bed.

A challenge to process engineers is diagnosing liquid maldistribution problems inside packed beds that can cause severe mass transfer efficiency loss. In industrial distillation columns, common examples of the cause of liquid maldistribution are design, manufacture or installation defects of distributors as well as damage, plugging and process disturbance of packed beds.

In this latest blog we will explain how following a Tru-Grid Scan, Tracerco’s ThruVision technology was able to obtain a more detailed liquid distribution profile of the packed bed.

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Topics: optimising plant processing, plant processing, scanning technology, Process Diagnostics, distillation column, Distillation Column Performance, packed column performance, distillation tower scanning, annular liquid distribution, Liquid maldistribution, packed column, Suspected maldistribution, distillation column maintenance, ThruVision scan, Tracerco technologies, Suspected maldistribution in packed beds, ThruVision

How to diagnose liquid maldistribution in packed beds: A case study - Part 1

Posted by Nicola Porter

May 12, 2016 8:52:49 AM

This post is the first of the "Diagnosing liquid maldistribution inside packed beds" series.

A challenge to process engineers is diagnosing liquid maldistribution problems inside packed beds that can cause severe mass transfer efficiency loss. In industrial distillation columns, common examples of the cause of liquid maldistribution are design, manufacture or installation defects of distributors as well as damage, plugging and process disturbance of packed beds.

In this latest blog, we will explain using a case study approach how Tracerco's scanning technologies can be used to diagnose suspected maldistribution in packed beds.

The first step to determine liquid maldistribution in a packed column is to perform a Tracerco Tru-Grid™ Scan to provide an initial look at the liquid distribution in the packing.  A Tru-Grid™ scan consists of four equal-distant chords, one through each quadrant of the tower. Under ideal conditions and uniform liquid loadings, each scan plot will overlay closely with all others.

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Topics: optimising plant processing, process systems, plant processing, scanning technology, Process Diagnostics, Gamma Scanning, Distillation Column Performance, packed column performance, distillation tower scanning, annular liquid distribution, Liquid maldistribution, packed column, Tru-Grid Scan, distillation column maintenance, Tracerco technologies, optimising plant production, Suspected maldistribution in packed beds

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