Decomposition of Ketones and Fatty Acids by Silica-Alumina Composites

1951 ◽  
Vol 43 (11) ◽  
pp. 2569-2572 ◽  
Author(s):  
Marjorie Demorest ◽  
David Mooberry ◽  
Joseph D. Danforth
Keyword(s):  
Fatty Acids ◽  
Silica Alumina ◽  
Alumina Composites

scholarly journals Influence of Morphology of Silica-Alumina Composites on Their Activity for Hydrolytic Dehydrogenation of Ammonia Borane

2016 ◽  
Vol 95 (6) ◽  
pp. 480-486 ◽  
Author(s):  
Naoki TOYAMA ◽  
Shinobu OHKI ◽  
Masataka TANSHO ◽  
Tadashi SHIMIZU ◽  
Tetsuo UMEGAKI ◽  
...  
Keyword(s):  
Ammonia Borane ◽  
Silica Alumina ◽  
Alumina Composites

One-step synthesis of three-dimensionally ordered macro–mesoporous silica–alumina composites

2014 ◽  
Vol 121 ◽  
pp. 212-214 ◽  
Author(s):  
Long Kou ◽  
Youhe Wang ◽  
Yan Dong ◽  
Dezhi Han ◽  
Bin Ni ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Silica Alumina ◽  
One Step ◽  
Alumina Composites

Fluidized Catalytic Cracking Catalyst Microstructure as Determined by A Scanning Ion Microprobe

1990 ◽  
Vol 48 (2) ◽  
pp. 302-303
Author(s):  
J.K. Lampert ◽  
G.S. Koermer ◽  
J.M. Macaoy ◽  
J.M. Chabala ◽  
R. Levi-Setti
Keyword(s):  
Catalytic Cracking ◽  
Secondary Ion Mass Spectrometry ◽  
Fuel Oil ◽  
Ion Microprobe ◽  
Fluidized Catalytic Cracking ◽  
Ion Probe ◽  
Silica Alumina ◽  
Resolution Imaging ◽  
The University ◽  
High Spatial Resolution Imaging

We have used high spatial resolution imaging secondary ion mass spectrometry (SIMS) to differentiate mineralogical phases and to investigate chemical segregations in fluidized catalytic cracking (FCC) catalyst particles. The oil industry relies on heterogeneous catalysis using these catalysts to convert heavy hydrocarbon fractions into high quality gasoline and fuel oil components. Catalyst performance is strongly influenced by catalyst microstructure and composition, with different chemical reactions occurring at specific types of sites within the particle. The zeolitic portions of the particle, where the majority of the oil conversion occurs, can be clearly distinguished from the surrounding silica-alumina matrix in analytical SIMS images.The University of Chicago scanning ion microprobe (SIM) employed in this study has been described previously. For these analyses, the instrument was operated with a 40 keV, 10 pA Ga+ primary ion probe focused to a 30 nm FWHM spot. Elemental SIMS maps were obtained from 10×10 μm2 areas in times not exceeding 524s.

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