CO_2 Adsorption Capacities of Active Chars Prepared from Wood Laminated Flooring Waste

摘要

Adsorption is considered to be one of the most promising technologies for the capture of CO_2 from flue gases and N-containing active chars (AC) are reported to be efficient in terms of CO_2 adsorption. In this work, different AC were prepared from wood laminated flooring waste through a multi-step process aiming to produce, in one way, a clean combustible gas for heat, electricity or biofuels production and in the other, a competitive cheap CO_2 sorbent. The capacities of adsorption of prepared AC are compared with those of the commercial one using TGA device. It was demonstrated that adsorption capacities of prepared AC was between 6 and 8 wt %, which is higher than for commercial AC (around 5 wt%) and close to the best results reported in literature (8 wt%). The results of this work confirm the technical feasibility of AC production from wood laminated flooring waste and validate the necessity of a more detailed study to optimise AC performances.