Seite - 208 - in Advanced Chemical Kinetics

rotation. However, the maximum values reached by the conversion for the two reactions described inFigure10areveryclose (89and82%). 5.2.Analysisof theeffectofsystemstirring If thesameconcentrationofcatalyst isused,wouldthestirringof thesysteminterferewith the kineticsof the reaction?Theanswer is: Surelyenough! Firstly, the lowest catalyst concentration, 0.2%KOH,will be analysed. The impact due the change in rotational speedwill bevariable in those reactions.Table3andFigure11 showthe results for the reactionswith0.2%catalyst. FromTable3andFigure11,wenotethat thetworeactionswith0.2%ofcatalystneedthesame reaction time to reach their maximum conversion, regardless of the rotation applied to the Figure 10. Variation of (a) TAG concentration, (b) propagation velocity and (c) TAG conversion for the reactionswith 520rpmof rotation. 0.2%and200rpm 0.2%and520rpm Time[min] XTAG [%] CTAG [molL 1] υ [ms 1] XTAG [%] CTAG [molL 1] υ [ms 1] 0 0 0.83 1428.1 0 0.83 1426.8 1 0.3 0.83 1385.7 0.3 0.81 1342.9 5 1.1 0.82 1355.8 5.5 0.78 1353.0 10 10.0 0.75 1347.9 8.7 0.76 1354.0 20 48.5 0.43 1353.2 78.6 0.22 1357.3 40 51.6 0.40 1355.2 82.1 0.18 1360.0 Table 3. Results for 0.2% (w/w) ofKOHreactions. Advanced Chemical Kinetics208