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Mathematical modeling and economic analysis of membrane separation of hydrogen from gasifier synthesis gas (open access)

Mathematical modeling and economic analysis of membrane separation of hydrogen from gasifier synthesis gas

Investigators are studying hydrogen purification by membrane technology as a means to make the coal-to-hydrogen route economically attractive. To allow prediction of membrane performance and to facilitate comparisons between membrane and other technologies (cryogenic distillation, pressure swing adsorption), they developed a mathematical model to describe the permeation process inside a membrane module. The results of this model were compared with available experimental data (separation of CO{sub 2}/O{sub 2}/N{sub 2} mixtures). The model was first used to calculate the gas permeabilities from one set of mixed-gas experiments; the resulting permeabilities were then used to predict the results of the other mixed-gas experiments. The agreement between these predictions and the experimental data was good. However, model predictions using gas permeabilities obtained in pure gas experiments did not agree with the mixed gas experimental data. This disagreement is believed to be due to plasticization of the membrane by contact with CO{sub 2}. These results indicate that data obtained from experiments with mixed-gas feeds are necessary to adequately predict membrane performance when CO{sub 2} is present. The performance of different system configurations, including one and two stages of membrane modules, was examined. The different configurations examined were single module (SM), single module with recycle …
Date: October 13, 1988
Creator: Roberts, D.L. & Gottschlich, D.E.
Object Type: Report
System: The UNT Digital Library
[Letter from James Miller to Laura Allard, May 13, 1988] (open access)

[Letter from James Miller to Laura Allard, May 13, 1988]

Letter from James R. Miller to Laura Allard, on May 13, 1988, thanking her for her willingness to serve on the TAMS Advisory Board.
Date: May 13, 1988
Creator: Miller, James R.
Object Type: Letter
System: The UNT Digital Library
Testimony in Annapolis on 15 February 1988 Before the House Appropriations Committee (open access)

Testimony in Annapolis on 15 February 1988 Before the House Appropriations Committee

Testimony given by Julian C. Stanley to the House Appropriations Committee in Annapolis, Maryland, on February 13, 1988, in which he gives advice to an evolving residential high school in Maryland.
Date: February 13, 1988
Creator: Stanley, Julian C.
Object Type: Text
System: The UNT Digital Library

[Photograph 2012.201.B0119A.0019]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Peggy Byerly plays with her own children , Jessica , 4 , and Christopher , 18 months.."
Date: January 13, 1988
Creator: Southerland, Paul
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0166.0111]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: February 13, 1988
Creator: Southerland, Paul B.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0162.0012]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Debi Dickinson displays the Paraoptometric of the Year plaque she was given at a recent convention of the Oklahoma Paraoptometric Section."
Date: May 13, 1988
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0147.0044]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Darron Cox is congratulated by his Sooner teammates after his solo homer in the third inning."
Date: May 13, 1988
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History
Two gauge boson physics at future colliders (open access)

Two gauge boson physics at future colliders

Electroweak unification suggests that there should be WW and ZZ physics analogous to {gamma}{gamma} physics. Indeed, WW and ZZ collisions will provide an opportunity to search for the Higgs boson at future high energy colliders. Cross sections in the picobarn range are predicted for Higgs boson production at the proposed 40-TeV SSC. While other states may be produced by WW and ZZ collisions, it is the Higgs boson that looms as the most attractive objective. 31 refs., 5 figs.
Date: May 13, 1988
Creator: Cahn, Robert N.
Object Type: Article
System: The UNT Digital Library

[Photograph 2012.201.B0352.0420]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Six vocalist were chosen Sunday as the top operatic talent in a national competition at Oklahoma Christian College."
Date: March 13, 1988
Creator: Hellstern, Paul
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0224.0522]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Sabina Gonzales sits with Vision, the newspaper she publishes in Oklahoma City."
Date: May 13, 1988
Creator: Hellstern, Paul
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0253.0175]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "I really felt this was the pressure game . . . OCU had beaten us five times in a row."
Date: February 13, 1988
Creator: Sisney, Steve
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0230.0134]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Tracy Bryan standing, and Robin Griffin consult on the progress of a murder mystery they are weaving as a benefit."
Date: January 13, 1988
Creator: Beckel, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0312B.0262]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Oklahoma State's Thomas Jordan says basketball is not his favorite sport."
Date: October 13, 1988
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0246.0411]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Leonard Hamilton, OSU Basketball Coach"
Date: October 13, 1988
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0261C.0191]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "A second-story sleeping porch, which was added to the rear of the house in 1914, provided comfortable sleeping for family and guests on hot summer nights."
Date: October 13, 1988
Creator: Argo, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0245.0728]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "With municipal ticket in hand, Bob Hallgren says he had a hard time parking his motorcycle."
Date: October 13, 1988
Creator: Hellstern, Paul
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0313B.0109]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Royce Jeffries puts the ball up over Ledell Eackles for OSU."
Date: January 13, 1988
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0156.0098]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Before the 1988 United Way of central Oklahoma campaign officially began Tuesday it was already well on its way to success."
Date: September 13, 1988
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0156.0096]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: September 13, 1988
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0251.0427]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Richard D. Harrison, second from left, receives a plaque from E. C. Joullian III as Dr. Thomas Haggai, left, and Frank McPherson look on."
Date: February 13, 1988
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0156.0097]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: September 13, 1988
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0154.0601]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Michael Davis , center , director of the Walt Disney World Band , gives instructions to Andy Brooks of McLoud.."
Date: August 13, 1988
Creator: Sisney, Steve
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0154.0223]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The number of working oil and gas drilling rigs nationwide dropped last Friday to its lowest level since September 1986, and Dale Davis, senior economist with Halliburton Services Inc."
Date: March 13, 1988
Creator: Beckel, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0224.0348]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Oak Tree's Bob Tway chips onto the green en route to a 70 Saturday."
Date: August 13, 1988
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History