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Catalysts of alkaline nitrates supported on oxides for the diesel soot combustion. Deactivation by hydro-treatment and CO2.
(Elsevier, 2013-01-20)
The deactivation of supported catalysts CsNO3 and LiNO3 for diesel soot combustion is studied in this work. The effect of hydro-treatment at high temperature and presence of CO2 in feed flow were investigated. Catalysts ...
A review article about the deactivation of poly(o-aminophenol) film electrodes employing Impedance Spectroscopy and Surface Resistance
(Bentham Science Publishers, 2018-04)
Objective: Storage time without use (STWU) in the supporting electrolyte solution for time periods beyond 30 hours deactivates poly(o-aminophenol) (POAP) films.
Observations: Deactivated POAP films exhibit a lower ...
Acylation of phenol on solid acids: Study of the deactivation mechanism
(Elsevier Science, 2005-10)
The deactivation mechanism of the gas-phase synthesis of o-hydroxyacetophenone (o-HAP) via acylation of phenol with acetic acid was studied on Al-MCM-41 and zeolites HY, HBeta and HZSM-5. The o-HAP yield remained constant ...
Poly(o-aminophenol): a polymer employed as material of biosensors: Its deactivation. A review article
(Uptodate Research Publication, 2017-12)
Electrochemical and chemical treatments, such as, storage time without use (STWU), prolonged potential cycling (PPC), high positive potential limits (HPPL) and soaking in a ferric ion solution (SFeIS), affect the conduction ...
Deactivation study of Ru-Sn-B/Al2O3 catalysts during selective hydrogenation of methyl oleate to fatty alcohol
(John Wiley & Sons Inc, 2019-08)
In this work, the deactivation of the Ru-Sn-B/Al2O3 catalyst prepared by the incipient wetness method in the selective hydrogenation reaction of methyl oleate to fatty alcohol was studied. There was a decrease in both the ...
Deactivation study of Ru-Sn-B/Al 2 O 3 catalysts during selective hydrogenation of methyl oleate to fatty alcohol
(John Wiley & Sons Inc, 2019-01)
In this work, the deactivation of the Ru-Sn-B/Al 2 O 3 catalyst prepared by the incipient wetness method in the selective hydrogenation reaction of methyl oleate to fatty alcohol was studied. There was a decrease in both ...
SO2 influence on the K/La2O3 soot combustion catalyst deactivation
(Elsevier Science, 2008-04)
In the present work, K/La2O3 was prepared and tested as a potential catalyst to be used in a diesel engine exhaust. The soot combustion activity was evaluated by TPO, and the NOx - catalyst interaction was studied using a ...
The charge transport process at poly(orthoaminophenol) film electrodes
(MedCrave, 2018-01)
Poly(o-aminophenol) (POAP) films were deactivated and then reactivated, and dependences of the different charge-transport and charge-transfer parameters on the degree of deactivation (θc ) were obtained by employing ...
Deactivation of Cu–Mg–Al mixed oxide catalysts for liquid transportation fuel synthesis from biomass-derived resources
(Elsevier B.V., 2018-08)
A “platform molecule” (2-hexanol) obtained from the primary conversion of sugars was upgraded to liquid transportation fuel precursors under gas phase conditions at 573 K and 101.3 kPa. Reaction was promoted by Cu-Mg-Al ...
Deactivation studies of the SCR of NOx with hydrocarbons on Co-mordenite monolithic catalysts
(Elsevier Science, 2008-06)
The catalytic reduction of NOx with hydrocarbons (butane or methane) on CoMOR washcoated monolithic catalysts was studied in the presence of steam and excess oxygen. The significant changes observed in the catalytic behavior ...