Sulzer

One drawback of static crystallization is that crystal layer growth rates are very slow. In the Sulzer MWB process, growth rates are gready improved by allowing a film to dow down vertical tubes (83). 

Static mixing of gas—Hquid systems can provide good interphase contacting for mass transfer and heat transfer. Specific interfacial area for the SMV (Koch/Sulzer) mixer is related to gas velocity and gas holdup ( ) by the following ... 

Heat transfer in static mixers is intensified by turbulence causing inserts. For the Kenics mixer, the heat-transfer coefficient b is two to three times greater, whereas for Sulzer mixers it is five times greater, and for polymer appHcations it is 15 times greater than the coefficient for low viscosity flow in an open pipe. The heat-transfer coefficient is expressed in the form of Nusselt number Nu = hD /k as a function of system properties and flow conditions. 

FIG. 22-16 Siilzer MWB-crystallization process, a) Stepwise operation of the process, (h) System flow sheet. (Sulzer Chemtecli)... 

Commercial Equipment and Applications The falliug-film ciystaUization process was invented by the MWB company in Switzerland. The process is now marketed by Sulzer Chemtech. Produc ts successfully processed in the falhug-film ciystaUizer are listed on Table 22-9. The falliug-film ciystaUizatiou process is available from the Chemtech Div. of Sulzer Canada Inc., 60 Worcester Rd., Rexdale, Outai-io N9W 5X2 Canada. 

Sources Sulzer Turbonwchinery (Siilzer Roteq) Winterthur, Switzerland, and MAN-GHH, Oberhausen, Germany. 

Figure 4-22. Expander with inlet valves. (Source Sulzer-Roteq.)...

Obviously, large turbotrains require modern coupling anangements. At least one manufacturer, Sulzer-Roteq, makes extensive use of solid couplings between compressors and expanders. The thrust bearing is usually located in the low-pressure compressor. 

Sulzer Turbosystems International 2901 Wilcrest Drive, Suite 450 Houston, TX 77042, USA Tel 713-780-4200 Fax 713-780-2848... 

France, John J., Sulzer Chemtech USA Inc., Troubleshooting Distillation Columns, presented to Rio Grande Chapter of AIChE, April 20, 1999. 

John J. France of Sulzer Chemtech USA Inc. provided expert information on troubleshooting distillation columns to the Rio Grand Chapter of AIChE. Checklists were provided for troubleshooting mechanical problems based on considerable successful field experience. This portion of the presentation is presented here with permission. 

Figure 3-1. Labyrinth piston compressor. This non-iubed piston s circumferential labyrinths operate with a close clearance to the cylinder wall instead of rubbing. Courtesy of Sulzer)...

Product name (Generic, Trade Names, Manufacturer/ Distributor) Fibrin Sealant, Hemaseel APR, Haemacure, Tisseel VH, Baxter Healthcare Platelet Gel, Medtronic Harvest Technologies, and others Collagen Enhanced Fibrin Sealant, CoStasis, Cohesion Technologies, US Surgical Collagen -F Thrombin, FloSeal, Fusion Medical, Proceed Sulzer Medica... 

Li et al. [36] performed an extensive study on AP in a Sulzer SMX statie mixer with both Newtonian and non-Newtonian fluids. They showed that AP inereased by a faetor of 23 in a SMX statie mixer in the laminar flow regime. Figure 7-24 shows their eorrelation between the Fanning frietion faetor and the Reynolds number for experimental points under various operating eonditions. 

Fig ure 7-24. Friotion faotor versus Reynolds number in Sulzer SMX Statio Mixer. (Source Li et a ., Trans. IChemE, Vol. 75, Part A, pp. 792-798, 1997. Reproduced with permission of the Trans. IChemE.)... 

Sulzers, Krupp, and First large diesel-powered 1960 Canadian National Last steam locomotive runs in... 

Figure 9-6EE. Koch/Sulzer packing. Used by permission of Koch Figure 9-6FF. Liquid and gas mixing in Koch/Sulzer packing ele-Engineering Co., Inc., Bull. KS-2. ments. Used by permission of Koch Engineering Co., Inc., Bull. KS-2.

Example 9-7 Koch-Sulzer Packing Tower Sizing (used by permission, Bulletin KS-1, Koch Engineering Co. Inc.)... 

---