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↗
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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.
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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↗
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↗
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.↗
Improved Regenerative Sorbent-Compressor Refrigerator
Conceptual regenerative sorbent-compressor refrigerator attains regeneration efficiency and, therefore, overall power efficiency and performance greater than conventional refrigerators. Includes two fluid loops. In one, CH2FCF3 (R134a) ciculates by physical adsorption and desorption in four activated-charcoal sorption compressors. In other, liquid or gas coolant circulated by pump. Wave of regenerative heating and cooling propagates cyclically like peristatic wave among sorption compressors and associated heat exchangers. Powered by electricity, oil, gas, solar heat, or waste heat. Used as air conditioners, refrigerators, and heat pumps in industrial, home, and automotive applications.
Jones, Jack A.↗
Sorbent-Bed Crop-Drying System
Proposed aeration system helps reduce spoilage of stored grain or other crop stored in bulk. Air circulates through bin, sorbent bed, and heat exchanger. Outside air cools circulating air in heat exchanger. Sensors measure temperature and humidity, and adjust dampers to obtain requisite temperature and humidity. Suitable for grain bins and shipping barges.
Roberts, Barry C.↗
High temperature sorbents for oxygen
A sorbent capable of removing trace amounts of oxygen (ppt) from a gas stream at a high temperature above 200 C comprising a porous alumina silicate support, such as zeolite, containing from 1 to 10 percent by weight of ion exchanged transition metal, such as copper or cobalt ions, and 0.05 to 1.0 percent by weight of an activator selected from a platinum group metal such as platinum is described. The activation temperature, oxygen sorption, and reducibility are all improved by the presence of the platinum activator.
Sharma, Pramod K.↗
Activated-Carbon Sorbent With Integral Heat-Transfer Device
Prototype adsorption device used, for example, in adsorption heat pump, to store natural gas to power automobile, or to separate components of fluid mixtures. Device includes activated carbon held together by binder and molded into finned heat-transfer device providing rapid heating or cooling to enable rapid adsorption or desorption of fluids. Concepts of design and fabrication of device equally valid for such other highly thermally conductive devices as copper-finned tubes, and for such other high-surface-area sorbents as zeolites or silicates.
Jones, Jack A.↗
Flight Data Update on Long-Term Compound Stability in Dual Sorbent Tubes
Dual Sorbent Tubes (DSTs) are currently the primary method for collecting volatile organic compounds in the cabin air of the International Space Station (ISS). Data from groundbased analysis of these archival air samplers provide a major component of the assessment of ISS air quality by the NASA toxicologist. At the 2005 ICES conference data from the positive control DSTs, returned on Soyuz 7S and 8S, were presented. Positive control tubes are dosed, preflight, with known concentrations of representative contaminant compounds and they are launched to ISS in the DST kit as trip controls. Upon return of the DST kit to the ground, results from analysis of the trip (positive) and laboratory control tubes are used to determine the recoveries: concentration of dosed compounds retained in the tube. Results from positive controls, returned on 7S and 8S showed substantial losses of some compounds dosed into the tubes 156 to 240 days prior to the analysis. Low recoveries are expected for spacecraft air contaminants with similar properties to the poorly recovered dosed compounds. It was shown that compound losses in the control tubes were consistent, which led to the generation of acceptable correction factors for spacecraft air contaminants. Correction factors decrease the accuracy of derived compound concentrations and substantial error could arise under some conditions. An investigation into the mechanism for compound loss is necessary before design modifications can be implemented to improve the DST performance. This paper will update results from the DSTs returned on Soyuz 9S and 10S missions during the latter part of 2005. The data acquired from these returned DSTs will be compared to the 7S and 8S data presented last year. Discussion will focus on the reliability of correction factors and identify any trends in the data. This paper will describe the experimental design and plans to identify the compound loss mechanism.
James, John T.↗