METHOD OF EXTRACTION OF AMINICOMPOUND FROM ACCOMPANYING DECARBURIZED EXHAUST GAS IN A COLUMN OF ABSORPTION Russian patent published in 2004 - IPC

FIELD: extraction of an aminocompound from accompanying decarburizated exhaust gas in a column of an absorption.

SUBSTANCE: the invention is pertinent to a method of extraction of an aminocompound from accompanying decarburizated exhaust gas in a column of an absorption containing a carbon dioxide absorption section and a water flushing section, by contacting of the decarburizated exhaust gas in system a steam - liquid using a counter-flow with flushing water in the water flushing section. At that carbon dioxide in the decarburizated exhaust gas is absorbed and removed due to its contact in the steam-liquid system with the absorbing solution containing an aminocompound in the section of absorption of carbon dioxide and with regeneration of a saturated absorbing solution. The water flushing section contains some stages, each of which contains a device for delivery of the flushing water, a section for water flushing, a basin for accumulation of the flushing water and a mist separator. Extraction of the aminocompound accompanying the decarburizated exhaust gas is exercised in succession at each stage with delivery to it of the flushing water.

EFFECT: the invention allows to extract aminocompounds from accompanying decarburizated exhaust gas.

3 cl, 3 dwg, 1 tbl, 3 ex