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20150623 NL GUTS Presentations Distillation - Thermal Separation

Last updated 989 days ago by Albert Verver

Group of Users of Technology for Separation in the Netherlands




20150623 Technical University Delft - Mr. Dennis van de Bor –“Mini-channel heat exchangers in distillation”

As part of the investigation of increasing the performance of compression-resorption heat pumps a mini-channel heat exchanger at the absorber side was modeled and experimentally verified for low T and large heat duty situations. The HE consisted of a large number of 0,5 mm ID / 1,1 mm OD rods in a shell. Tube and shell side heat transfer coefficients were determined in a water/water and water/ammonia situation with effects on pressure drops on both sides. Excellent heat transfer rates were established and well predicted by the model, increasing with increasing mass flux.
In the tubes pressure drop increased due to fouling however initially with little impact on heat transfer. Also at the tubes inlet accumulation of fouling occurred, an aspect for commercial units as well as ensuring good flow distribution over the tubes. Very performant results for industrial heat pumps on low fouling systems. Units are small and easy to implement as an add-on.



20150623 Harmsen Consultancy – Mr. Jan Harmsen - “Innovations in Distillation: The combined effects of factors behind this innovation boost”

Harmsen takes us back and forth from conventional to improved distillation set-ups like reactive distillation for hydrodesulphurization, reactive-extractive distillation for methyl-acetate, dividing wall columns. In fact only two main system suppliers build it and only a few operating companies use it, while the 400 units built worldwide show huge investment savings (40-80%) and operating savings (20-50%) From rules of thumb, mapping and PSE methods of Harmsen, BASF and PDC success factor for innovation in distillation were derived with examples and an outlook for major improvements. www.harmsenconsultancy.nl/


20150623 Hosokawa Micron B.V. - Mr. Gertjan Teekman-“Taking thermal drying to the next generation”

The Dutch subsidiary of Hosokawa has a long standing history of developing dryers for the process industry with its own engineering, manufacturing and test center, cooperating with the knowledge institutes. Focus is on mixing, drying and agglomeration equipment and installations. The priciples of the different machines were explained. The different vacuum (Nauta), flash (Drymeister), disc (Torus), fluid bed and paddle (Solidaire) dryers were reviewed with their operating windows and how to select the best applicable dryer against the ‘ideal dryer concept’ from the product specs and from the process requirements. From a more detailed description of flash dryers the challenges for these and other units especially energy saving potential of up to 50% were illustrated. www.hosokawamicron.nl


20150623 Innovation Handling B.V. – Mr. Wilhelm van Schaijk – “Acoustic visualization of flow and temperature in fluids”

The non-invasive acoustic humidity-temperature-velocity measuring technology of the high tech SME Innovation Handling IH, is able to visualize on line and in real time the flow patterns in rooms, piping and equipment. It is not sensitive to radiation or dust. It applies for gas and liquid. The speed of sound (in gas) depends on humidity and temperature. The technology measures values on a line instead of at a point, which enables real time 3D visualization. From distance and time data, velocities and directions are calculated and together with temperature data heat transport. With humidity values it quantifies water vapor mass transport to optimize drying processes. An example of pervaporation modules gives a clear picture of the potential. www.humitemp.com


20150623 Aquaver BV- Mr. Heijn Weijdema- “Aquaver Vacuum Membrane Distillation: Technology and Applications”

The new approach of Aquaver in MD is to separate the reuse heat input from the vacuum and thermal driving forces in horizontally stacked flat polymer membrane modules of stages of increased vacuum. Feed water is preheated in the last stage condenser. An additional cooling circuit removes residual heat. The configuration has independent T and P settings allowing optimization without active control loops. Standard units are 1,5 – 12 and 24 m³/day with skids for 1) membranes and connections 2) pumps HEX, feed prep 3) piping, valves and 4) electronics. Tested applications for drinking water, process water, wastewater, leachate, horticulture and commercial drinking water from seawater with waste heat from diesel generator were shown. www.aquaver.com


20150623 Estuary B.V. – Mr. Kees Tjeenk Willink – “Estuary supersonic dust separation technology for the agro- and food processing industry”

Originally developed by Shell and installed at 22 locations to remove solids and liquids from gas, the start-up Estuary markets the Twister technology outside oil & gas, targeting agro- and food processing. Atmospheric air from a vortex device is expanded in a Laval-tube in μsecs condensing water droplets to be separated in combination with dust particles at sub- or supersonic velocities down to 1,0 μm by large G-forces. A pressure drop of 0,5 bar is sufficient. Twister shows low maintenance cost, no moving parts, continuous, compact, good turndown ratio, medium investment, moderate energy consumption. Schemes for a spray dryer with heat recovery were discussed. Water recovery is proven. www.estuaryholding.com


20150623 Process Design Center B.V. - Mr. Peter Hinderink– “Azeotropic distillations – 2 case studies guided by expert system PROSYN”

PDC guides us through a number of distillation modules in their PROSYN expert system for conceptual designs and demonstrates the use of the ‘Close-boiling & azeotropic Distillation’ module for close-boiling multicomponent systems, including binary or ternary azeotropes. Focusing on the known ethanol-water case it arrives at the alternative Hetero Azeotropic Distillation with Mass Agent as entrainer for water of which PROSYN checks different process configurations and presents interim results as a decision tool for the process engineer. www.process-design-center.com


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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