Rate Process Analysis in the Liquid Chromatographic Reactor: An Application ofthe First Statistical Moment

摘要

A statistical moment method based on the overall elution profile is developed fora (pseudo-)first-order chemical reaction occurring in a chromatographic reactor. This approach overcomes difficulties in resolving and analyzing reactant and product overlap in elution traces and involves conversion of chromatographic reactor data to the first absolute moment for in situ kinetic parameter analysis and evaluation. This conversion is facilitated by detector adjustments. Application of this method is illustrated for a hydroquinone oxidation catalyzed by an iron-modified chromatographic silica in an organic environment. The effects of some mass-transfer processes on intrinsic kinetics for reactions occurring in a liquid chromatographic column are also examined. A simple reaction model and a model incorporating finite adsorption and desorption rates together with reaction are both developed. Reprints.