STEADY-STATE MULTIPLICITY OF LUMPED-PARAMETER SYSTEMS IN WHICH 2 CONSECUTIVE OR 2 PARALLEL IRREVERSIBLE 1ST-ORDER REACTIONS OCCUR

This work examines and classifies the steady-state multiplicity features of lumped-parameter systems in which either two consecutive or two parallel, irreversible, first-order reactions are carried out. Several new and surprising features were discovered such as the occurrence of steady-state multiplicity for all Damköhler numbers in certain cases. The multiplicity may occur only if at least one of the reactions is exothermic. Simple criteria are presented for a priori prediction of the conditions which guarantee steady-state uniqueness or multiplicity. © 1979.