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Surface characterizatin of palladium-alumina sorbents for high-temperature capture of mercury and arsenic from fuel gas

Description: Coal gasification with subsequent cleanup of the resulting fuel gas is a way to reduce the impact of mercury and arsenic in the environment during power generation and on downstream catalytic processes in chemical production, The interactions of mercury and arsenic with PdlAl2D3 model thin film sorbents and PdlAh03 powders have been studied to determine the relative affinities of palladium for mercury and arsenic, and how they are affected by temperature and the presence of hydrogen sulfide in … more
Date: January 1, 2010
Creator: Baltrus, J. P.; Granite, E. J.; Pennline, H. W.; Stanko, D.; Hamilton, H.; Rowsell, L. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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High Permeability Ternary Palladium Alloy Membranes with Improved Sulfur and Halide Tolerances

Description: The project team consisting of Southwest Research Institute{reg_sign} (SwRI{reg_sign}), Georgia Institute of Technology (GT), the Colorado School of Mines (CSM), TDA Research, and IdaTech LLC was focused on developing a robust, poison-tolerant, hydrogen selective free standing membrane to produce clean hydrogen. The project completed on schedule and on budget with SwRI, GT, CSM, TDA and IdaTech all operating independently and concurrently. GT has developed a robust platform for performing exten… more
Date: December 31, 2010
Creator: Coulter, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Final Report: Investigation of Catalytic Pathways for Lignin Breakdown into Monomers and Fuels

Description: Lignin is a biopolymer that comprises up to 35% of woody biomass by dry weight. It is currently underutilized compared to cellulose and hemicellulose, the other two primary components of woody biomass. Lignin has an irregular structure of methoxylated aromatic groups linked by a suite of ether and alkyl bonds which makes it difficult to degrade selectively. However, the aromatic components of lignin also make it promising as a base material for the production of aromatic fuel additives and cycl… more
Date: December 1, 2010
Creator: Gluckstein, Jeffrey A; Hu, Michael Z.; Kidder, Michelle; McFarlane, Joanna; Narula, Chaitanya Kumar & Sturgeon, Matthew R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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STRUCTURAL INTERACTIONS OF HYDROGEN WITH BULK AMORPHOUS MICROSTRUCTURES IN METALLIC SYSTEMS UNDERSTANDING THE ROLE OF PARTIAL CRYSTALLINITY ON PERMEATION AND EMBRITTLEMENT

Description: The development of metallic glasses in bulk form has led to a resurgence of interest into the utilization of these materials for a variety of applications. A potentially exciting application for these bulk metallic glass (BMG) materials is their use as composite membranes to replace high cost Pd/Pd-alloy membranes for enhanced gas separation processes. One of the major drawbacks to the industrial use of Pd/Pd-alloy membranes is that during cycling above and below a critical temperature an irrev… more
Date: May 10, 2010
Creator: Brinkman, Kyle; Fox, Elise; Korinko, Paul & Adams, Thad
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental Demonstration of Advanced Palladium Membrane Separators for Central High Purity Hydrogen Production

Description: The overall objectives for this project were to: (1) confirm the high stability and resistance of a PdCu trimetallic alloy to carbon and carbide formation and, in addition, resistance to sulfur, halides, and ammonia; (2) develop a sulfur, halide, and ammonia resistant alloy membrane with a projected hydrogen permeance of 25 m{sup 3}m{sup -2}atm{sup -0.5}h{sup -1} at 400 C and capable of operating at pressures of 12.1 MPa ({approx}120 atm, 1750 psia); and (3) construct and experimentally validat… more
Date: June 30, 2010
Creator: Emerson, Sean; Magdefrau, Neal; Opalka, Susanne; She, Ying; Thibaud-Erkey, Catherine; Vanderspurt, Thoman et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemical Hydrogen Storage Using Polyhedral Borane Anions and Aluminum-Ammonia-Borane Complexes

Description: Phase 1. Hydrolysis of borohydride compounds offer the potential for significant hydrogen storage capacity, but most work to date has focused on one particular anion, BH4-, which requires high pH for stability. Other borohydride compounds, in particular polyhedral borane anions offer comparable hydrogen storage capacity without requiring high pH media and their long term thermal and hydrolytic stability coupled with non-toxic nature make them a very attractive alternative to NaBH4. The Universi… more
Date: October 1, 2010
Creator: Hawthorne, M. Frederick; Jalisatgi, Satish S.; Safronov, Alexander V.; Lee, Han Beak & Wu, Jianguo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tcap Hydrogen Isotope Separation Using Palladium and Inverse Columns

Description: The Thermal Cycling Absorption Process (TCAP) was further studied with a new configuration. Previous configuration used a palladium packed column and a plug flow reverser (PFR). This new configuration uses an inverse column to replace the PFR. The goal was to further improve performance. Both configurations were experimentally tested. The results showed that the new configuration increased the throughput by a factor of more than 2.
Date: August 31, 2010
Creator: Heung, L.; Sessions, H. & Xiao, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Chemistry, phase formation, and catalytic activity of thin palladium-containing oxide films synthesized by plasma-assisted physical vapor deposition

Description: The chemistry, microstructure, and catalytic activity of thin films incorporating palladium were studied using scanning and transmission electron microscopies, X-ray diffraction, spectrophotometry, 4-point probe and catalytic tests. The films were synthesized using pulsed filtered cathodic arc and magnetron sputter deposition, i.e. techniques far from thermodynamic equilibrium. Catalytic particles were formed by thermally cycling thin films of the Pd-Pt-O system. The evolution and phase formati… more
Date: November 26, 2010
Creator: Anders, Andre
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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