Nutter rings

Figure 9-6K. Nutter Ring (metal random packing). Used by permission of Nutter Engineering, Harsco Corp., Bull. NR-2.

Figure 9-18 plots HETP versus FP for optimized trays at 24-in. spacing, and No. 2 and No. 2.5 Nutter Rings and Intalox 2T structured packing. 

Nutter offers an improved high performance random packing identified as Nutter Ring, see Figure 9-6K. To achieve the best performance from any random packing, the liquid distributor must be level and the distributor points of the discharging liquid to the packing must be uniformly distributed, see earlier discussion on this topic. 

Figure 9-31 A. Comparison of HETP for No. 2 Nutter Rings and Pall rings in a system at 24 psia and 5 psia using the FRI tubed drip pan distributor. Data prepared and used by permission of Nutter Engineering, Harsco Corp. and by special permission of Fractionation Research, Inc. all rights reserved.

Effidenqr enhanced by item (2) above, and the No. 2 Nutter Ring is better than 2-in. Pall rings [155, 157]. 

Plastic Nutter Rings are rigid and energy efficient, and permit applications to produce pressure drops per theoretical stage and bed heights, not attainable with other random particle packing. 

Figures 9-32A and B [98] illustrate the correlation of wet pressure drop and system vapor rate at various liquid rates for No. 2 Nutter rings however, other available data indicate that other sizes of Nutter rings, Pall rings, and selected other packing shapes correlate in the same manner.

Figures 9-33A and B illustrate the fit of data taken by FRI on a commercial size column for hydrocarbon systems, using No. 2.5 Nutter rings at three different pressures, and comparing the latest Nutter proprietary correlation previously presented.

Figure 9-32B. Correlation of No. 2 Nutter Ring for 7 liquid rates versus wet pressure drop. Reproduced by permission from Nutter, D. E. and Perry, D., presented at New Orleans, La. meeting of American Institute of Chemical Engineers, March (1988), and by special permission of Fractional Research, Inc. all rights reserved.

Nutter, D. E., Nutter Rings , A Random Packed Developed for Consistent Performance, Inst, of Chem. Engrs. Sym. Series No. 104, (1987), p. A 129, Brighton, U.K. also presented at AI.Ch.E. Annual meeting, Miami Beach, Fla. Nov. (1986). 

Nutter Engineering, Harsco Corp. Nutter Ring Random Packing, Bulletin NR-2, and private communication. 

Report of Tests of No. 2.5 Nutter Ring at Reduced Loadings, released to Nutter Engineering per Fractionation Research, Inc. Note, author and date not given. 

Nutritive sweeteners, 24 224 Nutritive sweeteners, 12 32, 38 Nutsche filter, 11 350-351, 352 Nutshells, as biomass, 3 684 Nutter ring, 3 770... 

CHART 10.2204 2 NUTTER RINGS FLOOD PRESSURE DROP... 

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