Method and apparatus for binding carbon dioxide, obtained product and use thereof

The method according to any of the preceding claims, characterized in that the pressure difference during the pressure fluctuation is between 0.8 and 1.5 kPa, preferably between 0.9 and 1.1 kPa.

The method according to any of the preceding claims, characterized in that the porous item(s) is a pre-casted concrete or pre-casted concrete-like item.

The method according to any of the preceding claims, characterized in that the carbon dioxide gas comprises 1-100% carbon dioxide, preferably 1-99% carbon dioxide, more preferably 30-90%, more preferably 40-70% carbon dioxide and/or the processing time is from 2 to 48 hours, preferably from 4 to 36 hours, more preferably from 4 to 30 hours, most preferably from 4 to 24 hours.

The method according to any of the preceding claims, characterized in that the carbon dioxide gas is obtained from industry side streams, preferably from power plant or factory flue gas or other side streams such as off gas from a biogas plant or ethanol fermentation or oil refinery tail gas.

The method according to any of the preceding claims, characterized in that during the pressure fluctuation, temperature of space (A) and/or (B) is 20-80° C., preferably 40-60° C., and/or relative humidity of space (A) and/or (B) is between 10% and 90%, preferably between 40% and 70%, more preferably between 40% and 60%, most preferably between 55% and 60%.

An apparatus for binding carbon dioxide into a porous item characterized in that the apparatus comprises a first space (A) connected to the inlet of a motor component (1) and a second space (B) connected to the motor compound outlet and at least one flow adjuster (2) between the first space (A) and the second space (B), wherein the apparatus further comprises process control systems for monitoring and controlling temperature and humidity in space(s) (A) and/or (B) and an inlet for providing carbon dioxide gas.