Algorithmic reduction process for kinetic stiff systems

We present a reduction algorithm for kinetic systems with kinetic constants in different scales. Our method is systematic and is based neither on the chemical conventional assumptions nor on the invariant manifold theory. Wit hout any change of coordinates, we build reduced and non-stiff-systems whic h approach the initial and stiff systems very accurately. (C) Academie des Sciences/Elsevier, Paris.