Pipe reactor with static mixer

A continuous bulk polymerization process with three reaction zones in series has been developed. The degree of polymerization increases from the first reactor to the third reactor. Examples of suitable reactors include continuous stirred tank reactors, stirred tower reactors, axially segregated horizontal reactors, and pipe reactors with static mixers. The continuous stirred tank reactor type is advantageous, because it allows for precise independent control of the residence time in a given reactor by adjusting the level in a given reactor. Thus, the residence time of the polymer mixtures can be independently adjusted and optimized in each of the reactors in series (8). 

A loop reactor is used for the bioconversion of methane to produce biomass used, e.g., as fish meal. This is a large-diameter pipe operated at high liquid circulation velocity with the 02/CH4 feed injected at several locations along the reactor. Cooling of the exothermic aerobic fermentation is accomplished by external heat exchangers. Static mixers are used to maintain gas dispersion in the liquid. 

Figure 6.5. General form of tubular turbulent reactor of divergent-convergent design with noz-zies for chlorination of BR. 1 - apparatus box 2 - connecting pipe for introduction of butyl rubber solution 3 - connecting pipe of gas mixture or gas introduction 4 - flow distributor 5 - nozzles 6 - static mixer 7 - connecting pipe for gas-liquid mixture taking off.

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