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.

Read More

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

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.

Read More

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.

Read More

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

How to reduce operating costs and shutdown time of a distillation tower: case study

Posted by Nicola Porter

Sep 15, 2015 12:41:38 PM

Improving process operating margins can be achieved by maximising production of higher value products and/or minimising production costs. It is important for plant engineers to know how much capacity is available in the trays in a distillation tower.  Gamma scanning is an established method used by many in the process industries as a qualitative tool to help troubleshoot distillation towers. Gamma scanning can be used to diagnose virtually any operating malfunction that can be identified by an observable change in density. This includes most mechanical, process or rate related problems such as tray damage, foaming, weeping and entrainment. By deploying new measurement detector technology and incorporating innovative analysis of gamma scanning data, plant engineers can now acc ss the all-important quantitative data about the capacity of distillation towers.

Read More

Topics: Process Diagnostics, Gamma Scanning, Tray Capacity, Distillation Column Performance, Carryover, Weeping, Entrainment, Tru-Scan, Column Flooding, Tray Damage, FrothView

Oil and Gas Comment and News 

Tracerco's news and comment on measurement and diagnostics in Oil & Gas and processing industries

Tracerco brings comment, news, how tos and more on their blog. Sign up for regular notifications of new posts. 

Subscribe to Email Updates

Recent Posts

Posts by Topic

see all