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Effect of Micropore Size on Catalyst Deactivation in Vapor Phase Beckmann Rearrangement over Zeolites
Beckmann rearrangement Cyclohexanone oxime Zeolite Caprolactam selectivity
2009/7/27
The vapor phase Beckmann rearrangement of cyclohexanone oxime (CHO) was carried out over TS-1 with an MFI pore structure and SSZ-31 and SSZ-24 with pore sizes larger than that of MFI to elucidate the...
Catalyst Deactivation of High-silica ZSM-5 Zeolite Modified with Noble Metals during Vapor Phase Beckmann Rearrangement of Cyclohexanone Oxime
Beckmann rearrangement Catalyst deactivation High-silica zeolite
2009/7/24
High-silica ZSM-5 zeolites were synthesized by the addition of pentavalent ions, such as phosphorus and arsenic ions, to the mother gel for the zeolite preparation. The Beckmann rearrangement of cycl...
Catalyst Deactivation in Distillate Hydrotreating (Part 2) Raman Analysis of Carbon Deposited on Hydrotreating Catalyst for Vacuum Gas Oil
Catalyst deactivation Raman spectroscopy Coke Vacuum gas oil
2009/7/24
Carbon deposited on spent vacuum gas oil (VGO) hydrotreating catalysts from a commercial plant was investigated by elemental analysis and Raman spectroscopy. The samples of spent catalysts were separ...