Description
Raschig rings are pieces of tube, approximately equal in length and diameter, used in large numbers as a packed bed within columns for distillations and other chemical engineeringprocesses. They are usually ceramic or metal and provide a large surface area within the volume of the column for interaction between liquid and gas or vapour. Raschig rings are named after their inventor, the German chemist Friedrich Raschig
Technical specification
| Ceramic Raschig RingSpecifications ( inch/ mm ) | D*H*δ mm | Specific surface (m2/m3) | Void volume(m3/m3) | Bulk number(n/m3) | Bulk density(kg/m3) | Dry packing(factorm-1) | |
| 1/4″ | Φ6 | 6*6*2 | 789 | 0.73 | 3110000 | 737 | 2030 |
| Φ10 | 10*10*2 | 440 | 0.70 | 720000 | 700 | 1280 | |
| Φ15 | 15*15*2 | 330 | 0.70 | 250000 | 690 | 960 | |