Fluitec Mixer/Heat-Exchangers

The Fluitec Mixer/Heat-Exchanger type CSE-XR was developed and patented by Fluitec AG. It is the most important invention in the static mixing technology of the last 20 years.
The CSE-XR is mainly used for temperature conditioning of highly viscous liquids at laminar flow. A strongly defined and well controlled homogeneity is guaranteed in any situation as well, as a very narrow residence time distribution. The reason for this excellent performance is its geometry, which is consequently based on the geometry of the most efficient static mixer type, the CES-X.

The very high radial mixing efficiency constantly ensures an intensive flow against the internal heat transferring tubes, thus allowing a the compact design of this device.

Multitube heat exchangers are often not dedicated for scale-ups. Problems occur mainly in cooling processes at laminar flow conditions, when the product can “freeze” in particular tubes, due to its increased viscosity at lower temperatures. Uncontrolled residence time distribution and maldistribution are thereby leading to a bad process control.

Monotube heat exchangers (tubes with a double shell) can be built much smaller, if using static mixers. The mixing elements are improving the surface renewal rate significantly.