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20160621 NL GUTS & PSE-NL Presentations Distillation & Thermal Separation

Last updated 702 days ago by Albert Verver


NL GUTS Group of Users of Technology for Separation in the Netherlands




21 JUNE 2016

Copies of the presentations can be downloaded from the NL GUTS member site Presentaties
Please login with your registrered NL GUTS member account 


20160621 ECM Technologies – Mr. Hans-Henk Wolters – “New heat exchanger bundles: potential for improving heat transfer in distillation”

ECM has a long record in electrochemical machining of equipment components and devices by using electrochemical pathways to shape metal surfaces and produce complex 3D structures; a high-tech SME with reputable international clients. The ECM technology and its applications were highlighted.

A new development is shaping the internal surfaces of metal tubes to promote turbulence, increase internal surface and reduce fouling tendency to be applied for tubular heat exchangers with increased efficiency and improved cleaning. The method applies to any metal and alloy. It is also used to fabricate micro-reactors and micro-separators. Besides, ECM uses Plasma Electrolytic Oxidation to produce metallic membranes. www.electrochemicalmachining.com  


20160621 FLUOR – Mr. Jelle Ernst Oude Lenferink - “The right troubleshooting strategy helps fixing a distillation problem”

Besides being a large EPC contractor Fluor also executes troubleshooting as part of their comprehensive services.

The underlying case concerns a distillation column operating below spec and far outside design conditions with the anomaly that the top temperature was considerably higher than further down with heavies in the overhead. Fluor applied IR and gamma scans to make temperature and density profiles over the distillation column sections and combined the data with simulations and hydraulic calculations to conclude that the root problems were maldistribution of the feed and reflux. After inspection of the reflux distributor and the reflux liquid conditions the solution was found in preventing reflux flash upon entry end boiling in the distributor. The distributor was modified, part of packing changed and conditions adapted to bring the distillation back on spec. www.fluor.com


20160621 University Twente – Mr. Louis van der Ham – “A systems engineering based evaluation of an intensified reactor-separation-recycle process for dimethyl carbonate”

The idea was to employ PSE and PI tools for defining a direct green route to produce the platform chemical Dimethyl Carbonate (DMC) from CO2. Different process routes were investigated. The CO2 + MeOH to DMC route was selected. However the equilibrium should be shifted considerably to make it economical.

A catalytic membrane reactor with selective water removal through the membrane in combination with distillation for DMC purification was analysed technically and economically. This arrangement is technically possible, but economically not feasible mainly due to limitations in improving CO2 conversion that could not be resolved. Equipment cost and energy demand are high and the CO2 balance negative. www.utwente.nl/tnw/spt/


20160621 University Bremen (DE) - Mr. Edwin Zondervan - “Process Systems Engineering Opportunities in The Netherlands”

Zondervan explores the usefulness of PSE in the new fields of Bio, Pharma, Food, Energy and Advanced materials to come to new and sustainable concepts, methods and tools for process and products design including the complete value chain especially for bio based systems. He gives examples of sequences of reaction and separation technologies in bio-refinery and component purification: a plea for re-aligning the joint interests of production companies and academia in education.

PSE is considered an indispensable tool by reducing the number of options to support decision making in the future developments of process industry. www.pse.uni-bremen.de


20160621 University Twente – Mr. Marek Blahusiak – “To distil or not to distil”

Knowing that distillation is a good and ubiquitous tool in process industry although with low energy efficiency, what can be done to improve that or just substitute it by for instance affinity separation with regeneration of the extractant.

The scheme more or less boils down to:

  • distillation is preferred for around 50/50 molar feeds;
  • add vapour recompression when the internal efficiency is OK in close boiler systems;
  • apply affinity separation in dilute systems or trace removal (low thermodynamic efficiency);
  • and more special introduce sufficient BP’s differences when attractive and repulsive interactions between compounds cause energy or azeotrope problems.



20160621 Mobatec – Mathieu Westerweele – “How to make and maintain transparent process models”

The SME Mobatec strives at supplying process models that can be used by process engineers not having had extensive modelling training. Besides process design, analysis, optimisation and control they are suitable for real time training operators. As other tools, it makes use of topology libraries and design rules. However the model complexity is determined by the goal only, built up from separate understandable parts. This makes understandable models, so engineers who did not make a model can still work with it, increasing the maintainability and reducing the time effort.

Examples of CSTR’s types, distillation columns and a sulphur incinerator were given together with a short movie about the use as a operator training tool in a chemical plant. www.mobatec.nl


20160621 Rotterdam University - Mr. Bob Lammers - Breezbox: air filtration by magnetic cooling

As part of their PTTP training at ISPT, Rotterdam University students Bob Lammers and Sharon Wijk developed a new concept of air cleaning. Cooling air with permanent magnets results in a vacuum and condensation. The vacuum sucks in fouled air passing a filter to remove dust and bacteria. After a while the removed energy is returned to the air which increases pressure and the clean air is expelled via an outlet valve.

The process is suitable for instance for homes, air planes, labs, hospitals, ships, cars, ICT stations and animal husbandry. Investments are somewhat higher, but well compensated by the low power cost compared with normal HVAC. www.ispt.eu


Join the NL GUTS LinkedIn community through : NL GUTS LinkedIn group
Visit the NL GUTS website www.processinnovation.nl/nlguts
For more information about NL GUTS please contact:
Jan Koning (chairman NL GUTS)
tel +32 473 976 135 - koning@trionpartners.nl
Bart Manders  (contact at RVO)
tel +31(0)88 602 2329 - bart.manders@rvo.nl

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