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in subjects: "Propane"  
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Two-stage Catalytic Reduction of NOx with Hydrocarbons

Description: A two-stage system for the catalytic reduction of NO from lean-burn natural gas reciprocating engine exhaust is investigated. Each of the two stages uses a distinct catalyst. The first stage is oxidation of NO to NO{sub 2} and the second stage is reduction of NO{sub 2} to N{sub 2} with a hydrocarbon. The central idea is that since NO{sub 2} is a more easily reduced species than NO, it should be better able to compete with oxygen for the combustion reaction of hydrocarbon, which is a challenge i… more
Date: December 21, 2005
Creator: Ozkan, Umit S.; Holmgreen, Erik M.; Yung, Matthew M.; Halter, Jonathan & Hiltner, Joel
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ab initio and density functional studies of hydrocarbon adsorption in zeolites.

Description: The adsorption energies of methane and ethane in zeolites are investigated with ab initio molecular orbital theory and density functional theory. In this work we have used zeolite cluster models containing two, three, and five tetrahedral (Si, Al) atoms and have found equilibrium structures for complexes of methane, ethane, and propane with an acid site. If a large enough cluster is used and correlation effects are included via perturbation theory, the calculated adsorption energy for ethane is… more
Date: August 21, 1998
Creator: Curtiss, L. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Winter Fuels Report: Week Ending December 15, 1995

Description: The Winter Fuels Report is intended to provide concise, timely information to the industry, the press, policymakers, consumers, analysts, and State and local governments on the following topics: distillate fuel oil net production, imports and stocks on a US level and for all Petroleum Administration for Defense Districts (PADD) and product supplied on a US level; propane net production, imports and stocks on a US level and for PADD`s 1, 2, and 3; natural gas supply and disposition and undergrou… more
Date: December 21, 1995
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Winter Fuels Report: Week Ending November 15, 1991. [Contains Glossary]

Description: This report is intended to provide concise, timely information to the industry, the press, policymakers, consumers, analysts, and state and local governments on the following topics: distillate fuel oil net production, imports and stocks for all Petroleum Administration for Defense Districts (PADD) and product supplied on a US level; propane net production, imports and stocks for PADD's I, II, and III; natural gas supply and disposition and underground storage for the United States and consumpt… more
Date: November 21, 1991
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Winter Fuels Report: Week Ending November 16, 1990

Description: The Winter Fuels Report is intended to provide concise, timely information to the industry, the press, policymakers, consumers, analysts, and State and local governments on the following topics: Distillate fuel oil net production, imports and stocks for all PADD's and product supplied on a US level; propane net production, imports and stocks for Petroleum Administration for Defense Districts (PADD) I, II, and III; natural gas supply and disposition and underground storage for the United States … more
Date: November 21, 1990
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Winter Fuels Report: Week Ending January 14, 1994

Description: The Winter Fuels Report is intended to provide concise, timely information to the industry, the press, policymakers, consumers, analysts, and State and local governments on the following topics: distillate fuel oil net production, imports and stocks on a US level and for all Petroleum Administration for Defense Districts (PADD) and product supplied on a US level; propane net production, imports and stocks on a US level and for PADD`s I, II, and III; natural gas supply and disposition and underg… more
Date: January 21, 1994
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Winter Fuels Report: Week Ending October 15, 1993

Description: The Winter Fuels Report is intended to provide concise, timely information to the industry, the press, policymakers, consumers, analysts, and State and local governments on the following topics: Distillate fuel oil net production, imports and stocks on a US level and for all Petroleum Administration for Defense Districts (PADD) and product supplied on a US level; propane net production, imports and stocks on a US level and for PADD`s I, II, and III; natural gas supply and disposition and underg… more
Date: October 21, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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