Reducing the Total Energy Expenditures in Low-Temperature Absorption of Hydrocarbon Gases.

An analysis is made of the conditions required for minimum irrigation during low-temperature absorption in a fractionating column. It is shown that a maximum nonequilibrium state, which is the cause of irreversible thermodynamic losses, is observed in zones of injection of initial gas and spent absorbent. It is established that irreversible energy losses may be reduced by removing the heat of absorption along the height of the column.