Аннотация:Purpose: study of controlled technological processes of a gas production complex, the study is based on partial differential equations. Results: The analysis allows to determine the characteristics of the gas production complex as a control object. Mathematical models of technological processes of the gas production complex are presented taking into account the dependence of the velocity of the gaseous phase on flow, pressure and temperature. The results of computational experiments are given for mass transfer processes in an absorber when perturbations are applied in one, two, and three variables. They confirm the adequacy of the mathematical model to the real technological process.