J-Kniep-MTR-Transformative-Membrane-Process.pdf

Bench-Scale Development of a Transformative Membrane Process for Pre-Combustion CO2 Capture Feed side (High pressure) Permeate side (Low pressure) Multi-Layer Composite Structure of Proteus Membrane Dense skin layer (0.1 – 5 µm) Microporous support layer (10 – 150 µm) H2 CO2 Very thin selective layers (100-500 nm) needed to obtain high flux required for industrial separations Feed spacer Feed flow Permeate flow Perforated permeate collection pipe Membrane Membrane envelope Permeate spacer Residue flow Gas Transport and Separation Spiral-Wound Membrane Modules Membrane Background Overview of New Project • H2 permeance and H2/CO2 selectivity measured at 50 psig • Three temperature cycles up to 200°C • Membrane stamp stable at all temperatures • H2 permeance increases with temperature, up to ~300 gpu • No H2 permeance hysteresis, no membrane damage • H2/CO2 selectivity averages ~30 • Results are extremely promising for a prototype membrane ~ 0.003 m2 0.1-0.2 m2 ~ 2-4 m2 ~ 20-50 m2 Introduction Stamp Small Module Semi-Commercial Module Commercial Module Budget Period 1 Budget Period 2 Budget Periods 2 and 3 Future Project Gen-2 Proteus Membrane Stamps at MTR Labs 0.1 1 10 100 1,000 0.1 1 10 100 1,000 Upper bound H2 permeance (gpu) H2/CO2 selectivity MTR Proteus TM PBI (250o C) Crosslinked modified polyimides Jay Kniep, Zhenjie He, Karl Amo, Trevor K. Carlisle, Zhen Sun, Meijuan Zhou, Sylvie Thomas, Tim Merkel Membrane Technology and Research, Inc., 39630 Eureka Dr. Newark, CA, 94560 USA www.mtrinc.com