Auger Analysis of Fresh and Sulfided Bead Catalysts to Be Used for Coal Liquefaction Studies

摘要

Auger analysis was used to determine the effect of changing sulfiding conditions on the surfaces and cross section elemental distributions of the bead catalysts. This study was to supplement the work being conducted at American Cyanamid Company to develop catalysts for coal liquefaction. The samples used in this study were fresh and sulfided bead catalysts and sulfided Shell 324. The bead catalysts contain approximately 3.1% NiO and 10.5% MoO sub 3 by weight on an alumina support. The Shell 324 also contains NiO and MoO sub 3 on alumina. The samples were studied by examining the outer catalyst surfaces, examining various points along the cross sections and mapping the cross sections. Differences observed after the various sulfiding treatments include variations in the S, C and Mo content of the outer surfaces and variations in the cross sectional distributions of those elements. 1 reference, 4 figures, 7 tables. (ERA citation 10:009460)