METHOD OF REDUCING LOSS OF OLEFINS IN REDUCTION OF CARBON DIOXIDE FROM OLEFIN FLOW AFTER REACTION OF DEHYDRATION Russian patent published in 2014 - IPC C07C5/333 C07C11/02 B01D53/14 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of carrying out reactions of dehydration with further absorption purification of gases, with the absorption gas purification followed by a stage of pressure release in a reservoir of high pressure flash evaporation, provided by mass-exchange elements, with the said stage being carried out with the application of combustible gas, flowing through the mass-exchange elements towards gravity direction, which passes through the high-pressure flash evaporation reservoir in a counterflow with respect to a solvent, subjected to pressure release, so that the absorbed hydrocarbons are absorbed by combustible gas. Combustible gas is represented by fuel gas, used for heating the dehydration reactor and which, for instance, is natural gas. To increase the process efficiency the flow of carbohydrates, separated from acid-forming gases, can be returned back into a channel of technological gas before absorption purification of gases.

EFFECT: method provides a possibility of an improved separation of carbon dioxide and hydrocarbons in the process of removal of acid-forming gases.

13 cl, 2 tbl, 1 dwg