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Synergistic capture mechanisms for alkali and sulfur species from combustion
This report presents work done on a laboratory combustor in an attempt to identify mechanisms that govern the simultaneous capture of alkali and sulfur species using sorbent injection techniques. The mechanisms of capture fall into two broad categories i.e. Physical transport of alkali species (in vapor or condensed phase) to the sorbent surface and surface reaction between the alkali species and the sorbents. Water solubility, though not specific, has been used to get an indication of relative significance of these two broad mechanisms. It is assumed that the physically adsorbed alkali species on sorbents are predominantly water soluble while the chemically reacted alkali content is predominantly water insoluble. In order to infer possible dominant mechanisms, specific parameters has been varied during experimentation. Such parameters include, speciation, particle time-temperature history, and furnace burning conditions.
Date:
April 23, 1992
Creator:
Peterson, T.W.; Shadman, F.; Wendt, J.O.L. & Mwabe, P.O.
Object Type:
Report
System:
The UNT Digital Library
The Tulia Herald (Tulia, Tex.), Vol. 84, No. 17, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
April 23, 1992
Creator:
Reynolds, Jim
Object Type:
Newspaper
System:
The Portal to Texas History
Cherokeean/Herald (Rusk, Tex.), Vol. 144, No. 12, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
April 23, 1992
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
[Arlington Police Museum. Newspaper picture of Russian police officer Oleg Orjekhouski touring the Harold K. Elliott Police Museum in Arlington]
Photograph of a newspaper clipping with a photograph taken by Carolyn Bauman from the Fort Worth Star Telegram April 23, 1992 of Moscow police officer Oleg Orjekhouski. The caption beneath the picture says "Moscow police officer Oleg Orjekhouski looks at one of the displays at the Arlington Police Museum." The display is of a mannequin wearing a motorcycle police uniform. A United States Flag is in the background. Officer Orjekhouski is wearing his uniform.
Date:
April 23, 1992
Creator:
Bauman, Carolyn
Object Type:
Clipping
System:
The Portal to Texas History
Synergistic capture mechanisms for alkali and sulfur species from combustion. Quarterly report No. 6, December 1991--February 1992
This report presents work done on a laboratory combustor in an attempt to identify mechanisms that govern the simultaneous capture of alkali and sulfur species using sorbent injection techniques. The mechanisms of capture fall into two broad categories i.e. Physical transport of alkali species (in vapor or condensed phase) to the sorbent surface and surface reaction between the alkali species and the sorbents. Water solubility, though not specific, has been used to get an indication of relative significance of these two broad mechanisms. It is assumed that the physically adsorbed alkali species on sorbents are predominantly water soluble while the chemically reacted alkali content is predominantly water insoluble. In order to infer possible dominant mechanisms, specific parameters has been varied during experimentation. Such parameters include, speciation, particle time-temperature history, and furnace burning conditions.
Date:
April 23, 1992
Creator:
Peterson, T. W.; Shadman, F.; Wendt, J. O. L. & Mwabe, P. O.
Object Type:
Report
System:
The UNT Digital Library
Fundamental studies of catalytic processing of synthetic liquids. Quarterly progress report, January 1, 1992--March 31, 1992
This project revolves around understanding the fundamental processes involved in the catalytic removal of harmful oxygenated organics present in coal liquids. We are modelling the complex type of sulfided Mo catalyst proposed for these reactions with simple single crystal surfaces. These display a controlled range and number of reaction sites and can be extensively characterized by surface science techniques. We then investigate the reaction pathways for representative simple oxygenates upon these surfaces. We have made considerable progress in characterizing the adsorption site of sulfur on the Mo(110) surface. The sulfur is probably located in the quasi-fourfold center hollow site on the surface at a vertical distance of about 1.5{Angstrom} above the topmost metal layer. At present the calculations assume no reconstruction of the metal layer and this tentative finding may change when we allow the metal to reconstruct. We have also progressed in our understanding of the reactions of furan on these surfaces. The data is therefore consistent with propane adsorption being hindered relative to either ethylene or furan, but the release of hydrogen from adsorbed furan is a higher energy process than the equivalent process for a simple hydrocarbon. The effect of preadsorbed S on furan and hydrocarbon adsorption …
Date:
April 23, 1992
Creator:
Watson, P. R.
Object Type:
Report
System:
The UNT Digital Library
San Antonio Register (San Antonio, Tex.), Vol. 60, No. 51, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date:
April 23, 1992
Creator:
Glosson, Edwin
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 116, No. 46, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
April 23, 1992
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
[Letter: Questions from the Oak Lawn Concerned Citizens Coalition to the city of Dallas staff]
Letter from the Oak Lawn community to the city of Dallas challenging their amendments to local regulations.
Date:
April 23, 1992
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
The Teague Chronicle (Teague, Tex.), Vol. 85, No. 47, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from Teague, Texas that includes local, state, and national news along with advertising.
Date:
April 23, 1992
Creator:
Massey, Steve
Object Type:
Newspaper
System:
The Portal to Texas History
The Olney Enterprise (Olney, Tex.), Vol. 83, No. 17, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from Olney, Texas that includes local, state, and national news along with advertising.
Date:
April 23, 1992
Creator:
Penn, David H.
Object Type:
Newspaper
System:
The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 110, No. 34, Ed. 1 Thursday, April 23, 1992
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
April 23, 1992
Creator:
White, Barbara
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 102, No. 43, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
April 23, 1992
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 102, No. 17, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from Canadian, Texas that includes local, state and national news along with extensive advertising.
Date:
April 23, 1992
Creator:
Ezzell, Ben & Ezzell, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
The Odem-Edroy Times (Odem, Tex.), Vol. 40, No. 17, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from Odem, Texas that includes local, state, and national news along with advertising.
Date:
April 23, 1992
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Archer County News (Archer City, Tex.), No. 17, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from Archer City, Texas that includes local, state and national news along with advertising.
Date:
April 23, 1992
Creator:
Lobpries, F. Mike & Lobpries, Fran
Object Type:
Newspaper
System:
The Portal to Texas History
Sulphur Springs News-Telegram (Sulphur Springs, Tex.), Vol. 114, No. 97, Ed. 1 Thursday, April 23, 1992
Daily newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.
Date:
April 23, 1992
Creator:
Keys, Clarke
Object Type:
Newspaper
System:
The Portal to Texas History
Hondo Anvil Herald (Hondo, Tex.), Vol. 106, No. 17, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from Hondo, Texas that includes local, state, and national news along with extensive advertising.
Date:
April 23, 1992
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Talco Times (Talco, Tex.), Vol. 57, No. 9, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from Talco, Texas that includes local, state, and national news along with advertising.
Date:
April 23, 1992
Creator:
Nichols, Thomas & Nichols, Nanalee
Object Type:
Newspaper
System:
The Portal to Texas History
[News Clip: Rape]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10 P.M.
Date:
April 23, 1992
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Stamford American (Stamford, Tex.), Vol. 71, No. 4, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from Stamford, Texas that includes local, state, and national news along with advertising.
Date:
April 23, 1992
Creator:
Rogers, Patsy
Object Type:
Newspaper
System:
The Portal to Texas History
Salient issues of edge physics pertaining to loss of confinement: A resistive MHD analysis
Contributions were made towards the ultimate goal of creating a complete theory of edge turbulence and transport in magnetic fusion devices. The main focus has been to utilize a resistive MHD model. This analysis includes: (1) rippling'' type models in which the current fluctuations are decoupled and the resistivity fluctuations are fundamental, and (2) drift'' type models in which the ambient current can be small (no resistivity fluctuations needed) and the current fluctuations are fundamental. In these turbulence frameworks, the important atomic physics based edge sources have been included (impurity radiation, ionization, and charge exchange effects).
Date:
April 23, 1992
Creator:
Thayer, D. R.
Object Type:
Report
System:
The UNT Digital Library
The Ingleside Index (Ingleside, Tex.), Vol. 43, No. 12, Ed. 1 Thursday, April 23, 1992
Weekly newspaper from Ingleside, Texas that includes local, state, and national news along with advertising.
Date:
April 23, 1992
Creator:
Cole, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
Salient issues of edge physics pertaining to loss of confinement: A resistive MHD analysis. Final report
Contributions were made towards the ultimate goal of creating a complete theory of edge turbulence and transport in magnetic fusion devices. The main focus has been to utilize a resistive MHD model. This analysis includes: (1) ``rippling`` type models in which the current fluctuations are decoupled and the resistivity fluctuations are fundamental, and (2) ``drift`` type models in which the ambient current can be small (no resistivity fluctuations needed) and the current fluctuations are fundamental. In these turbulence frameworks, the important atomic physics based edge sources have been included (impurity radiation, ionization, and charge exchange effects).
Date:
April 23, 1992
Creator:
Thayer, D. R.
Object Type:
Report
System:
The UNT Digital Library