Centrifuge systems

Cake Dewatering. Dewatering (qv), identified as a separate entity in filtration, is used to reduce the moisture content of filter cakes either by mechanical compression or by air displacement under vacuum pressure or drainage in a gravitational or centrifugal system. Dewatering of cakes is enhanced by addition of dewatering aids to the suspensions in the form of surfactants that reduce surface tension. 

Froth from the hot-water process may be mixed with a hydrocarbon diluent, eg, coker naphtha, and centrifuged. The Suncor process employs a two-stage centrifuging operation, and each stage consists of multiple centrifuges of conventional design installed in parallel. The bitumen product contains 1—2 wt % mineral (dry bitumen basis) and 5—15 wt % water (wet diluted basis). Syncmde also utilizes a centrifuge system with naphtha diluent. 

Gas pressurized Monitor tank level and provide interlock for feed feed shut-off overpressurizes, alternate fluid delivery system (e.g., pump) centrifuge system when feed vessel delivery gas pressure to maximum safe empties working pressure of downstream system (e.g., pressure regulation) Restrict feed flow rate to be consistent with vent capacity Ensure adequate vent capacity for maximum possible gas flow ... 

Figure 11-55B. Centrifugal system with propane refrigerant. (Used by permission Chads, J., Jr. Tech Paper RP-468, 1950. Dresser-Rand Company.)...

The centrifugal separation of solid impurities is adopted either as an alternative to filtration or combined with it. For example, having fixed-element filters that arrest larger particles, and a centrifuge system that removes the finer solids in suspension together with any water contained in the oil can clean a lubricant circulating system. 

Pumps, centrifugal system performance, 197 Affinity laws, 201-203 Branch piping, 200 Calculations, 199... 

The vendor claims that this technology will cost 47% of what normal centrifuge systems do, 44% of heat/pressure systems, and 7% of incineration (D130381). 

Total sediment includes measurement of insoluble fuel asphaltenes, inorganic compounds, catalyst fines, and other compounds which can be filtered from the fuel. This value is important because sediment may plug filters and strainers, overload centrifuge systems, and contribute to fuel system deposits. 

Bro 81] from fission products with the centrifuge system SISAK II. DG = degassing unit, Di, D2 = detector positions, Cl, C2, C3 = mixer-centrifuge units, C = column,... 

In-built automated vacuum system, or centrifugation system aids the washing step. 

Figure 9.6 Detail of equipment arrangement and water and process stream flow employing the high-density, four-stage separation centrifugation system. (Courtesy of Dorr-Oliver, Inc., Stamford, Connecticut)...

Since the fast centrifuge system SISAK is equipped with liquid scintillation counting LSC [12,58], it is in principle capable of investigating short-lived a-decaying nuclides of the transactinides, p/y pulses and a pulses are distinguished by pulse-shape discrimination PSD and pile-up pulses are rejected by a pile-up rejection system PUR. This analog electronics proved to result in insufficient background suppression. Thus, two new approaches... 

Description Suspension crystallization of paraxylene (PX) in the xylene isomer mixture is used to produce paraxylene crystals. The technology uses an optimized arrangement of equipment to obtain the required recovery and product purity. Washing the paraxylene crystal with the final product in a high efficiency pusher-centrifuge system produces the paraxylene product. 

The simplest procedure with a homogeneous, centrifugal system is to make r S small compared with S and assume that the particles fall with constant velocity. 

Fig. 3 A series of sealless flow-through centrifuge systems for performing CCC.

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