Packings Raschig rings

The cost of this packing (Raschig rings) is 20/ft3 in 1991 dollars. The packing cost is the product of the unit cost and the packing volume, or 7104. 

Fig. 4 (A) Random packings (Raschig rings). (B) Structured packings, KATAPAK (Sulzer). (C) Structured packings, MULTIPAK (Sulzer).

Cleaning of sludge in absorption towers and tower packing Raschig rings/lntalox saddles and internals, demister pads, candle demisters ... 

Randomly packed Raschig rings, saddles, slotted rings, Tellerettes, Maspac. 

Fig. 20. Improved packing parameters ( ) for liquid mass transfer (a) ceramic Raschig rings (b) metal Raschig rings (c) ceramic Bed saddles (d) metal PaH...

Fig. 21. Random packing elements for distillation columns (a), Raschig ring (metal) (b). Bed saddle (ceramic) (c), Intalox saddle (ceramic) (d), PaH ring...

FIG. 14-58 Typical holdup data for random packings and the air-water system. The raschig rings are of ceramic material. To convert pounds per hour per fr to Idlograms per second per m , multiply hy 0.001.356 to convert inches to millimeters, miinltiplyhy 25.4. [Shulman etal., AIChE J. i, 247 (I.9.5.5).]... 

FIG. 15-35 Extraction of diethylamine from water into toluene (dispersed) in towers packed with unglazed porcelain Raschig rings, To convert feet to meters, multiply hy 0,3048 to convert inches to centimeters, multiply hy 2,54, [Leihson and Beckman, Chem, Eng, Prog, 49, 405 (1953), with permission.)... 

FIG. 15 53 Effect of pulsing on extraction in a packed column methyl isobutyl ketone-acetic acid-water (continuous). Tower diameter = 1.58 in, 27-in depth of V4-in Raschig rings. = Vc = 7.5 to 10. To convert inches to centimeters, multiply by 2.54. [Data of Chanhy, von Berg, and Wiegandt, Ind. Eng. Chem., 47, 1153 (1.9.55), with permission. ... 

TABLE 23-7 Selected Absorption Coefficients for CO in Various Solvents in Towers Packed with Raschig Rings ... 

Many operating data for carbonate plants are cited by Kohl and Riesenfeld (Gn.s Purification, Gulf, 1985) but not including tower heights. Pilot plant tests, however, are reported on 0.10- and 0.15-m (4- and 6-in) columns packed to depths of 9.14 m (30 ft) of Raschig rings hy Benson et al. (Chem. Eng. Prog., 50, 356 [1954]). 

Plastic packing of very low pressure drop (just greater than wood slats), transfer Coefficients about same as 2-inch Raschig rings. Most useful applications in gas cooling systems or biological trickling filters. 

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