Catalytic reactor basket-type

Basket-type reactor (CSTR) for gas-phase reactions) High temperature, high pressure catalytic processes High transport rates, easy variation of parameters Limited particle size, high equipment cost, difficult to operate under a wide range of conditions without creating flow maldistribution... 

A small modification of the above design, in which the catalyst in the form of granules or pellets is placed in an annular basket made of wire mesh fitted close to the reactor wall, has also been examined. The use of such an annular basket-type reactor has been reported by Tajbl et al. (1967), Relyea and Perlmutter (1968), and Lakshmanan and Rouleau (1970). The basic features of this reactor are the same as the ones described above. The reactor has been used to carry out high-pressure, high-temperature catalytic methanation of mixtures of carbon monoxide/hydrogen and carbon dioxide/hydrogen. 

Figure 2.5 Types of laboratory catalytic reactors mostly used (a) plug-flow packed-bed reactor and (b) spinning basket reactor mimicking CSTR performance.

Tank reactors for solid-catalyzed gaseous or liquid reactions are seen much less frequently than tubular reactors because of the difficulty in separating the phases and in agitating a fluid phase in the presence of solid particles. One type of CSTR used to study catalytic reactions is the spinning basket reactor, which has the catalyst embedded in the blades of the spinning agitator. Another is the Berty reactor, which uses an internal recycle stream to achieve perfectly mixed behavior." These reactors (see Chapter 5) are frequently used in industry to evaluate reaction mechanisms and determine reaction kinetics. 

Goto et al. [158] investigated the question, of which reactor type is best suited for kinetic studies of solid-catalyzed reactions. Three possibilities were investigated (a) the catalyst was suspended with a 6-turbine stirrer (slurry reactor), (b) the catalyst was placed in two baskets fixed to the reactor wall (stationary catalytic basket reactor),... 

Of the different types of reactors that can be used, the stirred basket reactor is the most amenable to manipulation in terms of regimes (see Kenney and Sedriks, 1972). Such a reactor for gas-solid (catalytic) reactions was considered in Chapter 7 (Figure 7.4). Typically, to operate under chemical control conditions, say in a fully baffled 15-cm diameter reactor provided with an 8-cm turbine agitator, the speed of agitation should be in the range of 1000-5000 rpm (corresponding to an impeller tip speed of 24,000-120,000 cm/min). 

CSTR One type of catalytic CSTR is the spinning basket reactor in which each experiment is carried out at a given inlet... 

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