Innovations in carbon capture: porous materials and atom-thick films


Event details

Date 11.12.2023
Hour 12:0013:15
Speaker Prof. Wendy Queen
Prof. Kumar Agrawal
Location Online
Category Conferences - Seminars
Event Language English
Highly porous adsorbent materials for the separation of CO2 from dilute gas streams
Presented by Prof. Wendy Queen, Associate professor and head of the Laboratory of Functional Inorganic Materials, EPFL
The chemical industry consumes ~10 to 15% of global energy in separation processes alone, and this percentage will increase with the implementation of large-scale carbon capture efforts, an event that is partly constrained by the lack of a viable solution to separate CO2 from dilute gas streams. Given this, the development of new porous adsorbents, able to efficiently remove CO2 from gas streams and/or help reduce the energy consumption of other separation processes, is poised to reap huge global benefits through both cost and energy savings and an overall improvement in environmental and human well-being.
In this presentation, a general introduction to targeted classes of porous adsorbents will be given. Moreover, the presentation will outline our recent work on the design of several novel, highly porous adsorbents, their assessment in CO2 capture applications, and the construction of a CO2 capture demonstration unit that will be installed in Valais in 2024. 
Energy-efficient and low-cost carbon capture from atom-thick films
Presented by Prof. Kumar Agrawal, Associate professor and Gaznat Chair for Advanced Separations, EPFL

Energy-efficient and low-cost carbon capture from point source emission is crucial for rapid proliferation of capture technology needed to reduce anthropogenic CO2 emission. We focus on engineering ultrathin films, down to the thickness of a single atom, which selectively remove CO2 from N2. In this seminar, I will present synthesis and scale-up of these films, based on porous graphene, and their implementation in membranes for postcombustion capture. I will discuss highly-effective methods to produce these films, and our recent efforts to scale-up membranes for kilogram scale capture. I will discuss engineering challenges for bringing this technology to market. Finally, I will present EPFL Solutions4Sustainability project geared towards tackling carbon capture at the rate of one ton per day.