Fig. 1: Simplified schematic of the MgO looping process. | Nature Communications

Fig. 1: Simplified schematic of the MgO looping process.

From: Ambient weathering of magnesium oxide for CO2 removal from air

Fig. 1

The initial magnesite feedstock is fed into the calciner where the mineral is heated to produce CO2 and MgO. The produced MgO is then transported to land plots where it is deposited and allowed to carbonate over a year. The weathered material is then recollected, primarily in the form of magnesium carbonate, and transported back to the calciner. Here, the material is fed to the calciner with additional magnesite feedstock to make up for environmental losses from the previous cycle. In the calciner, the material is once again heated to produce CO2 and MgO. The process is then repeated.

Back to article page