Development of Novel Materials for Direct Air Capture of CO2: MIL-101(Cr)-Amine Sorbents Evaluation Under Realistic Direct Air Capture Conditions (Final Report)

Jones, Christopher W.; Lively, Ryan P.; Realff, Matthew J.

doi:10.2172/1907464

Development of Novel Materials for Direct Air Capture of CO₂: MIL-101(Cr)-Amine Sorbents Evaluation Under Realistic Direct Air Capture Conditions (Final Report)

Technical Report · Wed Dec 21 04:00:00 EST 2022

DOI:https://doi.org/10.2172/1907464· OSTI ID:1907464

^[1]; Lively, Ryan P. ^[2]; Realff, Matthew J. ^[2]

Georgia Inst. of Technology, Atlanta, GA (United States). Georgia Tech Research Institute; Georgia Tech Research Corporation
Georgia Inst. of Technology, Atlanta, GA (United States). Georgia Tech Research Institute

The overarching goal of this project is to evaluate the CO₂ adsorption properties of a small family of metal-organic framework (MOFs) materials functionalized with amines at sub-ambient conditions. Our goal is to develop capabilities to measure CO₂ adsorption at conditions more relevant to the weather of the planet. For this purpose, Georgia Tech is constructing a “sub-ambient adsorption facility” in partnership with ZCP Sorbent Development, LLC, aimed specifically at rapidly and deeply characterizing the performance of DAC candidate materials in this important operational range (adsorption at -20 to 20 °C and RH of 0-100%). Here, we use the sub-ambient lab instrumentation designed or adapted to study the behavior of the pristine metal organic framework (MOF) MIL-101(Cr) and the MOF in the presence of amines ranging from small molecules (e.g. TREN, tris(2-aminoethylamine)) to oligomers (e.g. PEI, poly(ethyleneimine)). Any DAC sorbent must be amenable to deployment in practical contactors for gas-solid contacting (traditional pellet-based fixed beds are impossible at scale). To this end, we developed and tested these DAC materials in the forms of composite polymer/MOF fibers and custom 3D-printed monolith structures containing MOF DAC sorbents. The proposed studies advance these materials from technology readiness level (TRL) 2 to TRL 3.

Research Organization:: Georgia Inst. of Technology, Atlanta, GA (United States). Georgia Tech Research Institute

Sponsoring Organization:: USDOE Office of Fossil Energy (FE)

DOE Contract Number:: FE0031952

OSTI ID:: 1907464

Report Number(s):: Final-Report

Country of Publication:: United States

Language:: English

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Development of Novel Materials for Direct Air Capture of CO₂: MIL-101(Cr)-Amine Sorbents Evaluation Under Realistic Direct Air Capture Conditions (Final Report)