Membrane technology for CO2 containing-gaseous streams treatment.

The new paradigms belonging to the principles of the 'circular economy' are redefining the concept of sustainable technology. The increase of the waste materials' reduction and recycling, the extensive use of these recycled materials - instead of fresh, the design and construction of new energetically efficient separation processes/units are only some of the examples required today to pursue a sustainable engineering. Membrane engineering moves under the valorization of these principles, representing a well-established technology fruitfully adopted in several industrial processes. This special issue aims to collect highly innovative experimental, theoretical and review contributions on membrane technology applied to CO2 containing-gaseous streams treatment, capture and valorization and environmental protection. Distinct and important perspective papers could be also be considered for publication in the current special issue. The papers will deal with membrane technology used for CO2 separation, CO2 conversion coupled with capture and/or storage, membrane-assisted operations for the purification of waste gaseous streams and the valorization of added-value products. Meanwhile, papers dealing with the adoption of integrated and hybrid membrane systems for CO2-containing gaseous streams treatment, pollution control and recovery of added-value compounds, techno-economic assessment, constitute other expected contributions for this special issue.