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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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Monitoring well integrity at the Cranfield field phase III CO2 storage project
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Geologic CO2 Storage Optimization under Geomechanical Risk Using Coupled-Physics Models
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Assessing feasible H2–CO2 sources in the US as Feedstocks for Sustainable Aviation Fuel Precursors: Acetic Acid and Ethanol Production via Hydrogenotrophic Pathways
The environmental impact of carbon dioxide emissions is significant, and research is focused on mitigating these emissions and developing eco-friendly technologies in line with green chemistry principles. Waste-to-energy technologies play a crucial role in converting waste into renewable energy and valuable biofuels and bioproducts. This study specifically explores the utilization of waste gas emissions, particularly carbon dioxide, from various sources in the United States for the production of sustainable aviation fuel (SAF) precursors, such as ethanol and acetic acid. The study categorizes and quantifies the volumes of carbon dioxide emissions into three types: non-biogenic, biogenic, and biogenic emissions from ethanol production facilities. Stoichiometric calculations are applied to compare the amounts of carbon dioxide from each category with the available hydrogen production capacity, determining if sufficient hydrogen is present for converting carbon dioxide into SAF precursors. The study reveals two key findings. Firstly, there is a significant reserve of carbon dioxide, approximately 1648 million metric tons per year (MMTy), combining all three categories, which would require a substantial increase of approximately 35–40 times in the existing hydrogen production capacity of 4.988 MMTy. This increased hydrogen production has the potential to yield approximately 1067.82 MMTy of acetic acid and 189.19 MMTy of ethanol annually. Secondly, upon analyzing the quality and application of the three sources of carbon dioxide with the currently available hydrogen production capacity, it is found that biogenic carbon dioxide from ethanol plants is the most suitable choice for immediate production of SAF precursors. This would theoretically result in an annual production of 1.36 MMTy of ethanol and 1.772 MMTy of acetic acid. The other two sources of carbon dioxide can be considered potential reserves for future utilization when additional hydrogen production facilities are established. The study provides a foundation for assessing the aggregation potential required for acetic acid and ethanol production. By optimizing the use of waste gases as raw materials, the study not only enables the production of SAF precursors but also contributes to the passive reduction of greenhouse gas emissions.
The effective magnetic moments of Co2+ and Co3+ in SrTiO3 investigated by temperature-dependent magnetic susceptibility
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A high throughput optical method for studying compositional effects in electrocatalysts for CO2 reduction
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Aqueous interphase formed by CO2 brings electrolytes back to salt-in-water regime
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Optimized Performance and Cost Potential for Indirect Supercritical CO2 Coal Fired Power Plants
This presentation given at the 2021 ASME Turbo Expo (GT2021-58865) summarizes the techno-economic global optimization results of coal-fired utility scale power plants based on indirect sCO2 power cycles with and without carbon capture and storage (CCS).
Impact of Plant Siting on Performance and Economics of Indirect Supercritical CO2 Coal Fired Power Plants
This study presents the impact of plant siting on the performance and economics of coal-fired utility scale power plants based on indirect sCO2 power cycles with carbon capture and storage (CCS). Presentation of paper made at the 2021 ASME Turbo Expo, GT2021-58867.
A Case Study of Risk Considerations for Transitioning CO2-EOR Field to Dedicated CO2-storage
Case study that summarizes the risk consideration for class II to class VI well transition. Presented (Virtual) at the Rock Fluid Dynamics (t-Navigator) Technology Summit 2024, May 10, 2024, Houston, TX.
Case Study of Risk Considerations for Transitioning a CO2-EOR Field to Dedicated CO2-storage
This is the poster for 2024 FECM / NETL Carbon Management Research Project Review Meeting. The poster the is the work we have done in NRAP Task 2 for Class II to Class VI Well Transition Case Study. Such study will be a continuously help to EPA for their guidance documentation.