The operation of FCC with mixtures of coked and regenerated catalyst was studied with a riser simulator reactor on two equilibrium catalysts at 550◦C. The coked catalysts maintain an activity level that enables them to be ...

The Wilkinson complex was tested as a catalyst in the partial hydrogenation of 1-heptyne, a medium chain alkyne, at a temperature of T = 303 K and hydrogen pressure PH2 = 150 kPa. The tests were performed in homogeneous ...

The activity, selectivity, stability, and regeneration of metal-containing zeolites, used in the isobutane alkylation with C4 olefins is studied. Platinum and palladium were impregnated on Y-zeolite catalysts that were ...

The regeneration of Y-zeolite catalysts used during the isobutane alkylation reaction is studied. Coke is characterized by temperature-programmed techniques and measuring the H/C ratio. The coke deposited under supercritical ...

Ni and NiCu bimetallic catalysts derived from hydrotalcite-like compounds have been studied by operando time-resolved X-ray Absorption Spectroscopy/Raman Spectroscopy/Mass Spectrometry during ethanol steam reforming (ESR) ...

The deactivation and regeneration of naphtha reforming PtReGe/Al 2O3 and PtReSn/Al2O3 catalysts prepared by catalytic reduction were studied. The extent and nature of coke deposition as determined by TPO were related to ...

The influence of temperature (450–500 °C) and time (1–4 h) of coke combustion on the catalytic properties of PtReIn/Al2O3 were studied. The results of the cyclohexane dehydrogenation and cyclopentane hydrogenolysis reactions ...

In this work, the deactivation of a Cu(10%)/SiO2 catalyst in the gas-phase hydrogenation of maleic anhydride (MA) was studied. The reaction was performed between 170 and 220 °C, at atmospheric pressure and using two contact ...