Details

Autor(en) / Beteiligte

• Cai, Junmeng
• Yao, Fusheng
• Yi, Weiming
• He, Fang

Titel

New temperature integral approximation for nonisothermal kinetics

Ist Teil von

• AIChE journal, 2006-04, Vol.52 (4), p.1554-1557

Ort / Verlag

Hoboken: Wiley Subscription Services, Inc., A Wiley Company

Erscheinungsjahr

2006

Link zum Volltext

Quelle

Wiley Online Library Journals Frontfile Complete

Beschreibungen/Notizen

• A new approximation for the temperature integral has been obtained by using Pattern Search method. The corresponding equation for the evaluation of kinetic parameters is presented, which can be put in the form $${\rm ln}\biggl[{g(\alpha) \over T^{2}}\biggr] = {\rm ln}\biggl[{AR \over \beta E} {E + 0.66691RT \over E + 2.64943RT}\biggr] - {E \over RT}$$ The validity of the new temperature integral approximation has been tested by numerical calculation. Its deviation from the values calculated by numerical integrating was discussed. Compared with several published approximate formulas, this new one is much superior to all other approximations, and is the most suitable solution for the evaluation of kinetic parameters from nonisothermal kinetic analysis. © 2006 American Institute of Chemical Engineers AIChE J, 2006