IMPIANTO E PROCESSO PER LA CATTURA E IL RECUPERO DI CO2 DA FUMI DI PROCESSO

The invention relates to a plant (10) and a process for the capture and recovery of CO2 from the fumes of a reheating furnace. The carbon dioxide is captured and divided in a CO2 capture and separation unit (C) into two CO2 flows (F1, F2) by means of membrane separation, adsorption separation, as with PSA technology, or chemical absorption and gas regeneration. One of the two flows (F1) feeds a washing device (18) wherein the CO2 passes through a solution of an alkali metal hydroxide MOH, in particular NaOH or KOH, to form M2CO3 which in a downstream reactor (24) is reacted with the second CO2 flow (F2) to form alkali metal bicarbonate (MHCO3). The heat recovered from the fumes can be utilized in various parts/stages of the plant/process of the invention.