METHOD AND INSTALLATION FOR PRODUCING OLEFINS Russian patent published in 2022 - IPC C07C5/333 C07C11/04 B01J8/00 

FIELD: chemistry.

SUBSTANCE: invention relates to ethylene production. A method for producing ethylene is described, in which ethane in the initial reaction mixture is partially catalytically transformed by oxidizing dehydration in the presence of oxygen to obtain a gaseous first mixture of components containing at least ethane, ethylene, acetic acid and water, while at least part of the gaseous first mixture of components is subjected to washing with washing liquid to obtain a liquid second mixture of components containing water and acetic acid, wherein the first part of the second mixture of components is used to form washing liquid, and the second part of the second mixture of components is subjected to extraction with a solvent to obtain a liquid third mixture of components containing at least one organic solvent and acetic acid, and at least part of the liquid third mixture of components is heated and subjected to distillation to obtain liquid mostly or exceptionally containing acetic acid, wherein heating of the third mixture of components or its part subjected to distillation is carried out, at least partially, under conditions of heat exchange with the first mixture of components and/or with the first and/or the second part of the second mixture of components.

EFFECT: increase in the efficiency of the ethylene production method.

11 cl, 1 dwg