Page 260 - Modeling of Chemical Kinetics and Reactor Design

230 Modeling of Chemical Kinetics and Reactor Design

Figure 4-7. Longitudinal tubular reactor.

CONTINUOUS MULTIPHASE REACTORS

Figure 4-8 shows a continuous reactor used for bubbling gaseous
reactants through a liquid catalyst. This reactor allows for close
temperature control. The fixed-bed (packed-bed) reactor is a tubular
reactor that is packed with solid catalyst particles. The catalyst of the
reactor may be placed in one or more fixed beds (i.e., layers across
the reactor) or may be distributed in a series of parallel long tubes.
The latter type of fixed-bed reactor is widely used in industry (e.g.,
ammonia synthesis) and offers several advantages over other forms of
fixed beds.