Sentence examples for initial deactivation from inspiring English sources

These phenomena are enhanced at lower reaction temperatures, which cause a faster initial deactivation.

Significantly different behaviors of initial deactivation for CO conversion have been observed with different H2/CO ratios.

Rapid initial deactivation occurred during the first few hours at the higher temperatures of 250 and 270 °C, followed by a constant deactivating value being reached, ranging from 3 to 5 wt%, every 24 h until the reaction terminated.

A certain amount of initial deactivation has been reported by other workers during the isomerisation of n-alkanes over Pt catalysts, which is expected under atmospheric pressure conditions [60].

The rapid initial deactivation (α1) was mainly attributed to carbon deposition on the surface, while the slow deactivation (α2) was significantly associated with nitrogen release.

Both catalysts showed an initial deactivation at low temperatures around 280 °C, mainly due to the dissociative adsorption of reactant TCE.

This indicates that the lab-scale catalyst ageing procedure effectively mimics the initial catalyst deactivation observed in the pilot plant.

Whereas the activity shown by Au/TiO2 and Au/Fe2O3 decreased linearly with time, Au/CeO2 and Au/SnO2 underwent an initial major deactivation.

For initial heat deactivation steps, 1.5 mL screw-cap tubes were placed in a water-bath maintained at 80°C.

A strong carrier effect on the initial specific activity, deactivation rate, and carbon accumulation was found to exist.

A specific type of polymer species, produced during the initial period of deactivation, is proposed to be responsible for the promotion of catalyst activity.