Cylindrical reaction vessels

A critical value of diameter exists when scaling-up a conventional agitated cylindrical reaction vessel, since the ratio of heat transfer area potential heat release is inversely proportional to diameter. 

Many of the various techniques associated with metal film preparation have recently been reviewed by Klemperer (76). Much of the catalytic work with thick continuous films has used a cylindrical reaction vessel (Fig. 7a). This cylindrical geometry permits a cylindrical sleeve of mica sheet to be inserved and used as the film substrate for epitaxial film growth... 

The catalyst was used in the form of a wire sealed down the axis of a cylindrical reaction vessel and care was taken to prevent its contamination, by baking it out and using a liquid air trap. Instead of the usual... 

At temperatures above 30°C, the rate increased slightly with temperature in a cylindrical reaction vessel but decreased slightly in a spherical vessel. A sharp increase in rate was noted as the temperature was decreased from 30°C. In the absence of water vapor or nitrogen dioxide a distinct induction period was observed, during which products were formed very slowly. The apparent rate increased slowly, and reached a maximum one-fourth to one-third of the way to reaction completion. The results quoted below were obtained near the start of the reaction but after the apparent induction period. The autocatalytic effect of nitrogen dioxide had been observed earlier in aqueous solutions. The reaction was found to obey the following rate law reasonably well. 

In a general preparation technique for giant liposomes the lipid (3 mg) is dissolved in 1 ml chloroform/methanol 10 1 and the solvent is evaporated in a horizontally rotating cylindrical reaction vessel. During this process the lipid adheres to the... 

The rate of heat generation from an exothermic reaction is directly related to the mass of reactants involved. This and the ability to remove the heat, is an essential consideration in the scale-up of reactors. In a conventional vertical cylindrical reaction vessel of diameter D,... 

Chlorination reactor and condenser. The direct chlorination operation in Figure 3.7 is replaced by a cylindrical reaction vessel, containing a rectifying section, and a condenser. A pool of liquid dichloroethane, with ferric chloride catalyst dissolved, fills the bottom of the vessel at 90°C and 1.5 atm. Ethylene is obtained commonly from large cylindrical vessels, where it is stored as a gas at an elevated pressure and room temperature, typically 1,000 psia and 70°F. Chlorine, which is stored commonly in the liquid phase, typically at 150 psia and 70°F, is evaporated carefully to remove the viscous liquid (taffy) that contaminates most... 

The denuder is a cylindrical reaction vessel packed with graphite balls impregnated with a transition metal (e,g. Fe or Ni) to catalyse the amalgam... 

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