Operation Problems of Fast Liquid-phase Processes

1 Operation Problems of Fast Liquid-phase Processes 

The design of plug flow reactors (tubular and tower devices) does not assume mixing in the direction of flow (axial turbulence), therefore the chemical processes within a blend of reactants occurs in laminar flow conditions. A combination of the displacement and plug flow reactors, with consideration of their material and thermal balances, makes it possible to calculate the optimal design of a device for any chemical process. 

However, these types of reactors, and their modified versions, are not very effective for rapid liquid-phase chemical processes when the reaction time is much less than 

The cationic (electrophilic) polymerisation of isobutylene is the most attractive process, in a family of rapid liquid-phase chemical reactions, for theoretical study as it is both theoretically clear and practically important. This process can be considered to be a classical model of a rapid liquid-phase chemical reaction [2, 26]. 

The analysis of kinetic parameters has demonstrated that the constants of initiating and chain growth reactions (kj , kp) have a minimal valne of 10 -10 1/mobs [26-33], thus determining the characteristic time of a chemical reaction 10 -l 0 s at real 

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