Pack costs

On the basis of this better performance of the Pall ring, a smaller diameter tower must be selected and the tower reevaluated based on the new mass flow rates with this packing. The economics require that the higher packing cost, smaller tower diameter, new total packing volume, and tower pressure drop be considered. 

Table 6.3. Cost of column packing. Cost basis mid 2004 ...

Strontium ranelate is administered as 2 g once daily. In 24 weeks, the patient would require 6 packs of 28 sachets. If one pack of 28 sachets costs 47.12, 6 packs cost 282.72 (47.12 x 6). 

Storage of part finished packs [costs and specialist work in progress (WIP) stores]... 

Figure 8.7 provides fractionation column internal trays that are to be added to the overall pressure vessel cost. A packed-column internal (random packing) cost is also given as cost per cubic foot of column-packed volume. 

Cost of installed unit, complete with distributor plates, supports, and all auxiliaries = 2.0 times purchased cost of shell and packing Cost of delivered power = 0.08/kWh Operating time = 8000 h/year Purchased cost of shell = 40/ft3 of packed volume Purchased cost of packing = 22.00/ft3... 

The packing cost, Cp, is a function of the packing volume, Vp, which is in turn a product of the packing depth, Hp, and column cross-sectional area, Ac ... 

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. 

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