TORNADO
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Q.
What operations and their subsequent results can you describe?
- This design allows stable heat transfer performance at the liquid surface by fixing the ratio between the liquid measure and heat transfer area vertically in the mixing vessel.
This equipment is effective in a system in which liquid measure increases by adding EO; for example, for an EO addition reaction. There are many different outcomes.
This equipment, which can contain a coiled coil, is used in a system that requires high heat transfer performance for medium viscosity.
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Q.
Why is it necessary to make the column thin and long?
- In an EO addition reaction vessel with a long, thin column, the final liquid volume increases, enabling efficient operation. The previous equipment had a low magnification, and liquid was transferred among multiple reactors to increase magnification. The TORNADO requries only a single vessel.
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Q.
What is the maximum ratio of the final volume to the initial amount of liquid? What is the liquid height and the inner diameter of the vessel?
- The ratio of the final volume to initial amount of liquid is a maximum of 80 times the performance. Structurally, the ratio can be increased up to100 times or more. There are cases in which the ratio of the liquid height and the inner diameter of the vessel is typically 2.0, but can exceed 3.0 depending on conditions.
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Q.
Is this equipment usable with a helical coiled-coil installed?
- There are cases in which a triple helical coil has been used. In the flow visualization test, we confirm that the coil-to-coil flow rate is appropriate, and the mixing time is less than half the time of the previous paddle impeller.
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Q.
Why is the liquid flow reversed?
- As the ratio of the final and initial liquid measures increases, the bottom shape of the vessel becomes conical, and the angle shaper. The conical shell causes downward flow at the walls. In the previous impeller model, flow was divided between the upper and lower walls, which was problematic. The TORNADO impeller successfully generates a downward flow at the walls even for straight body parts. It also provides stable gas absorbability even when the liquid level changes, resulting in high performance.
