Simultaneous SO{sub 2}/NO{sub x} abatement using zeolite-supported copper. Progress report, April 1--June 30, 1995

Technical Report · Sun Dec 31 04:00:00 EST 1995

DOI:https://doi.org/10.2172/665880· OSTI ID:665880

Mitchell, M B; White, M G

Several catalysts for NO decomposition have been reported in the literature to include the following: Cu/ZSM-5; Cu/Zeolite-Y; Cu/mordenite; Cu/{beta} zeolite; Cu/alumina; and Cu/silica which have been studied less than Cu/ZSM-5. The catalytic properties for NO conversion are found to be different on these samples with the ZSM-5 supported catalysts showing the highest activity in a dry environment free from sulfur oxides. One of the goals of this study is to have a better fundamental understanding on the different roles of Cu and the support in the catalytic reaction. The authors use stable, cationic metal complexes in non-aqueous solvents as sources of the Cu ions in producing model catalysts for which the fate of the source molecule is known and is controlled during the ion exchange/impregnation. Molecular models of these systems can be used to identify the possible configurations of the metal complexes within the zeolite support. The authors compare the performance of the model catalysts to one prepared by aqueous impregnation of ZSM-5 zeolite. The performance of the dinuclear metal complex on silica is compared to the same complex in ZSM-5 and Y-zeolites.

• Research Organization: Clark Atlanta, Univ., GA (United States)
• Sponsoring Organization: USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
• DOE Contract Number: FG22-92MT92017
• OSTI ID: 665880
• Report Number(s): DOE/MT/92017--01; ON: DE98057965; BR: AA1525150
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
54 ENVIRONMENTAL SCIENCES
CATALYSTS
CHEMICAL PREPARATION
COMBINED SOXNOX PROCESSES
COPPER
NITRIC OXIDE
PERFORMANCE TESTING
PROGRESS REPORT
SELECTIVE CATALYTIC REDUCTION
SILICON OXIDES
ZEOLITES