The study of dynamics of acid catalysed hydrolysis of acetic anhydride in a tubular reactor

Patel, Tejal; Jayakumar, N. S.
September 2005
Chemical Business;Sep2005, Vol. 19 Issue 9, p71
Trade Publication
Experiments were conducted in the tubular reactor using acid catalyzed hydrolysis of acetic anhydride in presence of acetic acid as a solvent to study the dynamics of the tubular reactor. The experiments were studied under non-isothermal conditions. RTD experiments were conducted using tracer techniques and it was found that the system could be modeled as CSTR in series. The number of tanks in series from the RTD experiments was found to be seven. A tank in series model was used to predict the transient temperature for the reaction experiment conducted. The mass and energy balance equations for seven CSTR in series were written and solved numerically by fourth order Runge Kutta method using MATLAB (4.2 version). The predicted transient final CSTR outlet temperature was compared with the experimental outlet tubular reactor temperature and the prediction was in satisfactory agreement with the experimental temperature data. The effect of recycle on the dynamics of the tubular reactor was simulated by modifying the tank in series model by introducing the recycle parameter λ (with notation λ=1 corresponding to zero recycle and 1=0 corresponding to total recycle). The modified mass and energy balance equations were solved numerically by fourth order Runge Kutta method using MATLAB.


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