DEVICE TO EXTRACT CO AND METHOD OF WASTES REMOVAL Russian patent published in 2010 - IPC B01D53/62 B01D53/14 

FIELD: process engineering.

SUBSTANCE: invention relates to CO₂-extraction device and method of fast removal of depleted material from regenerator that forms in the device. Proposed device comprises absorption column, regeneration column, condenser and refrigerator. Absorption column CO₂-containing gas and CO₂-absorbing solution are brought into contact to produce solution enriched by CO₂. The latter is fed into regeneration column wherein weak solution results due to removal of CO₂ from enriched solution. Fraction of weak solution comes via offtake line into regenerator. Weak solution is heated in regenerator to produced condensed wastes and evaporated solution that absorbs CO₂. Condensed wastes from generator are fed into refrigerator and cooled to or below 50°C. Solution absorbing CO₂ recovered in regenerator is fed into regeneration column.

EFFECT: reduced weak material cooling time, simplified process.

6 cl, 3 dwg