Kinetic analysis for liquid-phase reactions from programmed temperature data: II. Sequential discrimination of potential kinetic models

• Published in: Thermochimica acta 1985, Vol.94 (2), p.333-343
• Main Authors: Uribe, M.I.Ortiz, Salvador, A.Romero, Gulias, A.Irabien
• Format: Article
• Language: English
• Subjects: Catalysis; Catalysts: preparations and properties; Catalytic reactions; Chemistry; Exact sciences and technology; General and physical chemistry; General. Nomenclature, chemical documentation, computer chemistry; Theory of reactions, general kinetics; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
• ISSN: 0040-6031; 1872-762X
• DOI: 10.1016/0040-6031(85)85277-1

The sequential discrimination of potential kinetic models for non-isothermal, linear programmed temperature data, has been introduced. The influence of the initial concentration, C 0, and the heating rate, β, in the kinetic curves has been used for the sequential discrimination of the kinetic model and parameters. A kinetic analysis at constant temperature and/or constant conversion enable us to separate the influence of the concentration and/or the temperature in the kinetic analysis from thermoanalytical curves. This method seems to be useful and optimal for reaction analysis in the liquid phase. Non-isothermal experiments allow a systematic approach to the kinetic behaviour of a wide range of variables, temperature and/or initial concentration, leading to a maximum knowledge of the reaction through a minimum experimental effort.