Selective catalytic reduction of sulfur dioxide to elemental sulfur. Final report Page: 6 of 174
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3.6 Literature Cited ..............................................................................................37
4 Reduction of SO2 by CO to Elemental Sulfur
over Composite Oxide Catalysts ..................................................................46
4.1 Introduction ....................................................................................................46
4.2 Experimental ..................................................................................................47
4 .3 R esu lts ...........................................................................................................4 8
4.3.1 Transition Metal-Impregnated Ceria Catalysts .....................................48
4.3.2 Effect of Copper Content on the Catalyst Activity
and Selectivity of the Cu-Ce-O System ................................................49
4.3.3 Zirconate and Zirconia Catalysts...........................................................49
4.3.4 Effect of Carbon Dioxide on Catalyst Activity and Selectivity ..............50
4.3.5 Bulk Cuoai[Ce(La)]o.ssOX Catalyst .......................................................51
4.3.6 Catalyst Characterization......................................................................52
4.3.7 Reducibility of the Cuo.15[Ce(La)]o.sOX Catalyst............................... 54
4.4 Discussion .....................................................................................................55
4.5 Conclusions ....................................................................................................58
4.6 Literature Cited ..............................................................................................59
5 Complete Oxidation of CO and CH4 over
Transition Metal-Fluorite Oxide Composite Catalysts
I. Catalyst Composition and Activity ..........................................................82
5.1 Introduction ...................................................................................................82
5.2 Experimental..................................................................................................84
5.2.1 Catalyst Preparation ............................................................................84
5.2.2 Apparatus and Procedure ....................................................................85
5.3 Results And Discussion ..........................................85
5.3.1 Carbon Monoxide Oxidation ...............................................................85
5.3.1.1 CeO2 and Zro.9Yo.101.9 Catalysts ............................................85
5.3.1.2 Cuo.oi[Ce(La)]o.990X Catalyst ................................................86
5.3.1.3 CuX[Ce(La)]1.. 02-x Catalyst ..................................................86
5.3.1.4 Effect of Dopant Oxides on the Catalytic Activity of
Cuo.1sCeo.8sOX Catalyst ...................................................... 87
5.3.1.5 Activity Enhancement by the Concerted Effect of CuO and
CeO2 .....................................................................................88
5.3.1.6 Activities of Other Transition Metal-Fluorite
Oxide Catalysts .....................................................................89
5.3.1.7 Effect of Water Vapor on Catalyst Activity ...........................90
5.3.2 Methane Oxidation ...........................................90
5.3.3 Simultaneous Oxidation of CO and CH4
over the Cuo.15[Ce(La)]o.s5OX Catalyst..................................................92
5.4 Summary ...................................................................... .....92
5.5 Literature Cited ..............................................................................................94vi
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Liu, W.; Flytzani-Stephanopoulos, M. & Sarofim, A.F. Selective catalytic reduction of sulfur dioxide to elemental sulfur. Final report, report, June 1, 1995; Cambridge, Massachusetts. (https://digital.library.unt.edu/ark:/67531/metadc624197/m1/6/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.