Towards the next-generation membranes for energy-efficient molecular separation


Event details

Date 07.12.2017 10:3011:30  
Speaker Prof. Kumar Agrawal
Laboratory of advanced separations
EPFL Valais, Sion
Category Conferences - Seminars
ChE-605 - Highlights in Energy Research seminar series
Improving the energy-efficiency of the molecular separation is key to reduce the carbon footprint of the chemical and the petrochemical industries. Membranes operating with high separation selectivities can cut down the cost of the thermally driven separation processes such as distillation by up to 10-fold.1,2 Moreover, chemically and thermally stable, high-throughput membranes are expected to open new avenues for the process intensification and a wide-scale decentralized operation. Inspired by this, we have been driven to develop synthetic and engineering routes to design chemically and thermally stable membranes that outperform the state-of-the-art-membranes in separation selectivity as well as productivity (membrane permeance). With this perspective, I will present our recent endeavors to develop the nanoporous two-dimensional membranes which are the ultimate membranes for the gas separation. I will discuss our recent advances in the top-down and the bottom-up synthetic approaches, solvothermal crystallization, the novel designs of high-throughput porous support, and the key challenges that still need to be overcome to develop the next-generation membranes.3,4,5,6
1. Materials for Separation Technologies. Energy and Emission Reduction Opportunities. US Department of Energy, 2005.
2. Sholl, David S; Lively, R. P., Nature, 2016, 532, 435.
3. Varoon (Agrawal) et al., Science, 2011, 334, 72–75.
4. Agrawal et al., Adv. Mater., 2015, 27, 3243–3249.
5. Agrawal et al. J. Phys. Chem. C., 2017, 121, 14312–14321.
6. He, G.; Dakhchoune, M.; Zhao, J.; Huang, S.; Agrawal, K. V., Submitted.

Practical information

  • General public
  • Free



Highlights in Energy Research