(285e) Additive Manufacturing of MOF Contactors for CO2 Capture
AIChE Annual Meeting
Tuesday, November 15, 2022 - 9:45am to 10:00am
Here we utilize solution-based additive manufacturing (SBAM), a form of 3D printing, to directly fabricate hierarchically-porous contactors containing a MOF. Contactor porosity is achieved via solvent-evaporation induced phase inversion of a ternary polymeric solution during the printing process. The dependence of porosity on printing parameters, including nozzle temperature, bed temperature, and printing speed, is demonstrated. Functionalization of the MOF is performed post-printing, and the geometrical versatility of SBAM is demonstrated through novel contactor designs. Pre- and post-printing characterization of the MOF, including CO2 isotherms, N2 physisorption, XRD, NMR, and SEM, confirm its stability throughout the fabrication process. The contactor performance is evaluated for natural gas combined-cycle (NGCC) applications using dynamic humid CO2 breakthrough experiments. Overall, the results of this work provide a foundation for fabricating MOF contactors with enhanced mass and heat transfer for humid CO2 capture applications.