Raschig ring


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Raschig ring

[′rä·shik ‚riŋ]
(chemical engineering)
A type of packing in the shape of a short pipe; used in columns for absorption operations, and to a limited extent for distillation operations.
References in periodicals archive ?
Geometric characteristics of random packing (the typical size is 50 mm) Packing type Specific Void fraction surface (a), ([epsilon]), [m.sup.2]/[m.sup.3] [m.sup.3]/[m.sup.3] Raschig ring (ceramic) 110 0.735 CMR No.
At the same time, it should be noted that, for example, regular filling of Raschig rings can increase the surface area of the packing by 10-18%.
So, as it can be seen in Figure 3, structured packing have less pressure drop in comparison with random packing such as Raschig rings (Fig.
In addition to electrical porcelain, EMCO runs a full fledged department for production of chemical porcelain such as Acid Proof Lining Bricks, Raschig Rings and Saddles and Special Refractories.
Then the gas stream was percolated up through a glass column packed with Raschig rings, while the liquid bromine trickled down from above.
Research produced the expressions of the coefficients of the porosity of granules having forms of balls, cylinders and irregular Raschig rings.