4 Matching Results

Results open in a new window/tab.

[Photograph 2012.201.B0105.0298]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Oklahoma running back Dewell Brewer is hit by Colorado's Garry Howe during Saturday's game at Boulder."
Date: October 27, 1990
Creator: Hellstern, Paul
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0387.0472]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: October 19, 1991
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History
Direct Methane Conversion to Methanol. Annual Report, October 1, 1992--September 30, 1993 (open access)

Direct Methane Conversion to Methanol. Annual Report, October 1, 1992--September 30, 1993

We proposed to demonstrate the effectiveness of a catalytic membrane reactor (a ceramic membrane combined with a catalyst) to selectively produce methanol by partial oxidation of methane. Methanol is used as a chemical feedstock, gasoline additive, and turbine fuel. Methane partial oxidation using a catalytic membrane reactor has been determined as one of the promising approaches for methanol synthesis from methane. In the original proposal, the membrane was used to selectively remove methanol from the reaction zone before carbon oxides form, thus increasing the methanol yield. Methanol synthesis and separation in one step would also make methane more valuable for producing chemicals and fuels. The cooling tube inserted inside the membrane reactor has created a low temperature zone that rapidly quenches the product stream. This system has proved effective for increasing methanol selectivity during CH{sub 4} oxidation. The membranes broke during experiments, however, apparently because of the large radial thermal gradient and axial thermal expansion difference. Our efforts concentrated on improving the membrane lifetime by modifying this non-isothermal membrane reactor.
Date: October 1, 1993
Creator: Noble, R. D. & Falconer, J. L.
Object Type: Report
System: The UNT Digital Library
[Delta Sigma Theta Awards Gala at the 42nd national convention] captions transcript

[Delta Sigma Theta Awards Gala at the 42nd national convention]

Video footage provided by The Black Academy of Arts and Letters shown during the Delta Sigma Theta Awards Gala. The footage shows an animated slideshow with photo slides of famous members of the sorority along with their names and city. A narrator speaks over the slideshow giving a brief description of the women's accomplishments. The women commonly serve their community in positions of education, politics, civil rights, and public service.
Date: October 6, 1994
Creator: unknown
Object Type: Video
System: The UNT Digital Library