A. Spence et al., MODELING CATALYTIC COMBUSTION IN A MONOLITH REACTOR - A NUMERICAL ALGORITHM FOR VARYING SOLID-PHASE PECLET NUMBERS, Computers & chemical engineering, 17(11), 1993, pp. 1057-1066
Citations number
18
Categorie Soggetti
Computer Application, Chemistry & Engineering","Computer Applications & Cybernetics","Engineering, Chemical
The modelling of catalytic combustion in a monolith reactor results in
a boundary value problem involving both differential and algebraic eq
uations. In the case studied here there is an initial value system of
differential algebraic equations coupled to a standard two-point bound
ary value problem. The latter equation has the solid phase Peclet numb
er (Pe) as a parameter which in the application of interest here can v
ary from 10(-1) to 10(4). The aim of the paper is to introduce and ana
lyze an iterative solution technique which will treat all Pe values. T
he technique is illustrated with the aid of a simplified 1-D single ch
annel model but is not restricted to this case and may readily be exte
nded to the modelling of multichannel monolith reactors. The solution
algorithm is a natural iteration which makes use of the coupling betwe
en the differential algebraic initial value problem and the two-point
boundary value problem. A convergence theory is given for this iterati
on. Example problems are solved and the numerical results are shown to
be in agreement with the theory.