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Calculation and Simulation of Fast Chemical Processes

Equations of chemical kinetics, heat transfer, diffusion and convection, form the basis for the simulation of fast chemical reactions in a diffusion area and an estimation of process behaviour. [Pg.4]

Taking polyisobutylene synthesis as an example, a polymerisation kinetics approach is used which assumes the main macrochain growth limitation to be the chain transfer to the monomer (Equations 1.1-1.5)  [Pg.4]

Where Cat, M, A , P are the catalyst, monomer, growing chain (active centre), and inactive macromolecule respectively k , and k, are rate constants of the initiation reactions, chain transfer to monomer, and chain termination respectively. [Pg.4]

The initiation rate of isobutylene polymerisation is sufficiently high k, kp) which is why, in process kinetics, the initiation stage is considered to be instant. The concentration of active centres I A corresponds to the catalyst concentration in this case. [Pg.5]

The number-average degree of polymerisation P , depends on the monomer concentration (M) in terms of process kinetics  [Pg.5]


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