Challenges in DAC Sorbent Performance Measurements
This poster outlines the current challenges the Direct Air Capture Center is facing with Sorbent Performance Measurements.
McNary, Christopher↗
SEARCH · Search NASA
Results for “Sorbent”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Characterization of Solid Sorbent for Direct Air Capture of CO2 using a CFD-based Methodology
Computational Fluid Dynamics (CFD) was used to investigate the CO2 capture by a novel PIM sorbent developed in National Energy Technology Laboratory (NETL) for direct air capture (DAC) applications. The CO2 adsorption kinetics used in the CFD was developed using isotherm data and CO2 breakthrough data obtained from experiments. Effect on humidity on the CO2 adsorption was also investigated and compared with the CO2 adsorption in dry conditions.
Aziz, Hossain↗
Processible Polymeric Sorbents for Direct Air Capture
To cope with legacy greenhouse gas emissions and to achieve net-zero emissions by 2050, the U.S. Department of Energy is funding efforts to develop Direct Air Capture (DAC), a method for removing CO2 directly from air. A processible polymeric amine functionalized sorbent has been developed at NETL that shows high uptake, stability over multiple adsorption and desorption cycles and a simple, scalable synthesis.
Sekizkardes, Ali↗
Techno-Economic Assessment of Direct Air Capture with Microwave-Assisted Regeneration of Sorbent
This poster presented the results on the techno-economic screening analysis of microwave-assisted regeneration of DAC sorbent.
Mantripragada, Hari↗
Updates to Direct Air Capture Sorbent Case Studies
This poster reports preliminary results from an update to NETL’s 2022 “Direct Air Capture [DAC] Case Studies: Sorbent System” (Rev1).
Patel, Kshitij↗
Low-Cost, Scalable Sorbents with Balanced Capacity-Kinetics-Thermodynamics for H2 Storage
The goal of this project is to utilize cutting-edge materials science, chemistry, and process engineering to demonstrate the feasibility of a new class of scalable sorbents with unprecedented balance of capacity-kinetics-thermodynamics for H 2 storage in fossil fuel power plants . The core fabrication leverages the unique exotic properties (e.g., high H 2 affinity, ultrahigh surface area, and exceptional thermal, mechanical and chemical stability) of the emerging 2D materials i.e. hexagonal boron nitride (hBN) followed by strategic coupling with alkali metals (Li, Na) dopants and optimal interlayer distance to deliver a stable, long-term energy storage for the grid. Figure 1 shows how this technology works.
08 HYDROGEN↗
Presentation: Bench Scale Development of a Novel Direct Air Capture Technology Using High Capacity Structured Sorbents
The presentation provides a status report of bench-scale development of a DAC technology, specifically sorbent washcoat optimization, desporption method optimization, testing, and bench-scale design & fabrication.
Sanderson, Cory↗
Plastic Additive, Sorbent-Coated, Thermally Integrated Contactor for CO 2 Capture (PLASTIC4CO2) (Final Report)
Final report for Plastic Additive, Sorbent-Coated, Thermally Integrated Contactor for CO2 Capture (PLASTIC4CO2) DE-FE-0032132. The goal of the work was to investigate at a technology readiness level of 3 (TRL 3), the proof of concept of an additively printed plastic 2-channel heat exchanger/sorbent contactor system to achieve a 15% lower levelized cost of electricity (LCOE) than a baseline liquid phase amine adsorber system for 90% and 95% capture of CO 2 from both a 7F02 2x1CC and 7HA02 2x1CC natural gas turbines.
03 NATURAL GAS↗
Life Cycle Assessment and Cost Analysis of a Process-Based Sorbent-Based Direct Air Capture with Temperature-Vacuum Swing Adsorption Model
This presentation discusses different aspects of LCA and TEA of sorbent-based case study updates and methodologies utilized for carbon dioxide removal technologies. The combined TEA and LCA approach adopted herein provides insight into trade-offs between environmental performance and cost efficiency under various energy supply scenarios.
carbon dioxide removal↗
LCA-TEA of Sorbent-Based Direct Air Capture with Temperature-Vacuum Swing Adsorption Model
This poster presentation discusses different aspects of Life Cycle Assessment (LCA) and Techno Economic Analysis (TEA) of sorbent-based case study updates and methodologies utilized for carbon dioxide removal technologies. The combined TEA and LCA approach adopted herein provides insight into trade-offs between environmental performance and cost efficiency under various energy supply scenarios.
carbon dioxide removal↗
Van de Graaff Irradiation Studies of Oxygen Sensor and Hydrated Zirconia Sorbent
Commercial-scale production of Mo-99 demands a facility-wide assessment of radiation-induced degradation across process equipment, instrumentation, and purification media. Key factors— total ionizing dose, dose rate, radiolysis-driven chemistry, thermal loads, activation, and any neutron-related effects—should inform material selection, shielding, and component layout. Purification materials (sorbents, resins, filters, seals, housing) require particular attention to ensure that irradiation does not alter selectivity or capacity, generate fines, or introduce leachables that could compromise Mo-99 purity or downstream Tc-99m generator performance. Dose mapping, accelerated irradiation testing, and studies of extractables/leachables together provide the basis for setting maintenance, calibration, and replacement intervals and for qualifying materials that retain mechanical integrity, chemical compatibility, and radiopurity over their service life.
36 MATERIALS SCIENCE↗
Development of Crown Ether-Functionalized Polymeric Sorbents for Lithium-Ion Capture
The purpose of this Cooperative Research and Development Agreement (CRADA) was to develop and demonstrate new synthetic strategies for fabricating lithium-selective polymeric adsorbents by covalently incorporating crown ether functionalities into durable, processable support materials. These advanced sorbents are designed to selectively extract lithium ions (Li⁺) from dilute aqueous sources such as brine, seawater, industrial wastewater, and battery recycling streams.
36 MATERIALS SCIENCE↗
Magnetic Sorbent for the Removal of Selenium(IV) from Simulated Industrial Wastewaters: Determination of Column Kinetic Parameters
A novel meso- and microporous tire-derived-carbon support with magnetic iron oxide nanoparticle adsorbents that selectively adsorbs Se(IV) ions from simulated contaminated water has been developed. In this work, the physicochemical characteristics of the composite adsorbent are characterized with respect to porosity and surface area, chemical composition, and microstructure morphology. The kinetics of this composite adsorbent in a fixed-bed setting has been determined. Several column runs were conducted and analyzed by inductively coupled plasma-optical emission spectroscopy (ICP-OES) to determine the concentration gradient vs time. These results were then fit to a pseudo-second order rate law to obtain equilibrium values. Combining calculated equilibrium values with effluent concentration data, enabled the application of the Adams–Bohart model to determine reaction constants and column coefficients. Column parameters obtained from different flow rates and fittings of the Adams–Bohart model were remarkably consistent. These findings enable the application of this sorbent to fixed-bed column systems and opens up further research into mixed pollutants tests with real wastewater and scaling of selenium pollutant removal.
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗
The use of silver oxide as a regenerative carbon dioxide sorbent
Regenerative silver oxide sorbent development for carbon dioxide removal from space cabin atmospheres
CABIN ATMOSPHERE↗
GAT-O-SORB -A regenerable sorbent for carbon dioxide control.
Regenerable sorbent /GAT-O-SORB/ in granular form for carbon dioxide removal from air, discussing design and performance tests of laboratory prototype
REGENERATIVE CYCLE↗
Regenerable carbon dioxide sorbents.
Experimental program to evaluate regenerable sorbents for carbon dioxide removal in space cabin environments
Ball, K.↗
Improved molecular sorbent trap for high-vacuum systems
Closed cycle refrigeration loop in which trays holding molecular sorbent are made to serve as cooling baffles improves the performance of high vacuum systems. High performance is obtained with almost no decrease in pumping speed.
Knechtel, E. D.↗
Silver oxide sorbent for carbon dioxide
Material can be regenerated at least 20 times by heating at 250 C. Sorbent is compatible with environment of high humidity; up to 20% by weight of carbon dioxide can be absorbed. Material is prepared from silver carbonate, potassium hydroxide or carbonate, and sodium silicate.
Colombo, G. V.↗