Slurries agitation

The checkers employed 75 mL DMSO rather than 50 mL to facilitate slurry agitation with nearly identical results. Benzylamine was purchased through Aldrich Chemical Company, Inc. and used without further purification. 

In the following sections, the solutions of the models as well as examples will be presented for the case of slurry agitated reactors. 

Slurry agitated reactor for continuous flow of both phases (CSTR conditions)... 

In connection with the engineering content of the book, a large number of reactors is analyzed two- and three-phase (slurry) agitated reactors (batch and continuous flow), two-and three-phase fixed beds (fixed beds, trickle beds, and packed bubble beds), three-phase (slurry) bubble columns, and two-phase fluidized beds. All these reactors are applicable to catalysis two-phase fixed and fluidized beds and agitated tank reactors concern adsorption and ion exchange as well. 

The MSSR presents the same advantages as BSCR, such as high efficiency of heat-and mass-transfer and minimal intraparticle diffusional resistance, and are convenient for use in batch processes. For these reasons, the slurry-agitated reactors are also suitable for kinetic studies in the laboratory. Some of their major drawbacks are large power requirement for mechanical agitation,... 

A method was devised for recycling the slurry that had the advantage of a long time for contact, and at the same time was a means of slurry agitation. It was simply to return cold filtered brine from the bottom of the separation column through a nozzle partly submerged in the slurry at the bottom of the freezer. The clear brine entrains slurry, maintains violent agitation, and forms a fountain. 

Slurry Bubble Column Reactors As in the case of gas-liquid slurry agitated reactors, bubble column reactors may also be used when solids are present. Most issues associated with multiphase bubble columns are analogous to the gas-liquid bubble columns. In addition, the gas flow and/or the liquid flow have to be sufficient to maintain the solid phase suspended. In the case of a bubble column fermenter, the sparged oxygen is partly used to grow biomass that serves as the catalyst in the system. Many bubble columns operate in semibatch mode with gas sparged continuously and liquid and catalyst in batch mode. 

As shown in Figure 6.8, a rotary-drum filter consists of three parts a drum with an automatic filter valve, a filter tank with a slurry agitator, and a scraper for removing the cake. The drum rotates from 0.1 to 2 rpm about its horizontal axis [23]. Other characteristics are drum diameters from 4 to 14 ft (1.22 to 4.27 m), drum length from 1.5 to 18 ft (0.427 to 5.49 m), and drum surface area from 18 to 783 ft (1.67 to 72.7 m ) [24]. A filter cloth is wrapped around the drum, which... 

Figure 1 — Slurry agitator in original configuration was often damaged during process upsets...

Figure 24. Schematic diagram of a brine circulation system in the mercury cell process a) Electrolysis cell b) Anolyte tank c) Vacuum column dechlorinator d) Cooler e) Demister f) Vacuum pump g) Seal tank h) Final dechlorination i) Saturator k) Sodium carbonate tank I) Barium chloride tank m) Brine reactor n) Brine filter o) Slurry agitation tank p) Rotary vacuum filter q) Vacuum pump r) Brine storage tank s) Brine supply tank...

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