Sentence examples for deactivation test from inspiring English sources
It was possible to determine MMOC of an ARDS catalyst system within 45 50 days by accelerated deactivation test using a high metal feed (e.g., Boscan crude).
The catalysts were tested for the combustion of CO and toluene, and the best combinations with active phase and support were submitted to a deactivation test in a waste gas incinerator for 50 days.
Deactivation tests showed lifetime enhancement for catalysts exposed to the naphtha diluted with ethanol.
However, the effect of carbonaceous deposition during accelerated deactivation tests might have been overestimated compared with that during practical hydrotreating.
Accelerated deactivation tests of a laboratory prepared Co Mo/Al2O3 catalyst were performed using three kinds of petroleum feedstocks.
Deactivation tests were performed on catalytic filter discs using either benzene, naphthalene or a mixture of benzene and naphthalene as tar model compounds in a simulated gasification gas containing up to 200 ppm H2S.
Subsequent deactivation tests with naphthalene and with a mixture of benzene and naphthalene as tar model compounds showed that for simulated gasification gas containing up to 100 ppm H2S and for a filtration velocity of 2.5 cm/s (typical value in real gas) the naphthalene conversion is 98% in both cases.
However, both catalysts showed slight deactivation during the test period.
A non-linear deactivation model is tested to separate sulphur-induced deactivation from 'natural' deactivation in the reaction mixture and preliminary results are presented.
This approach can be of special interest when experimental evaluation of catalytic behavior is very expensive or time-consuming, as, for instance, for catalyst deactivation studies, for testing under very severe conditions, or when high amounts of catalyst are demanded.
The recyclability has also been studied: sample SZ-1 (sulphated zirconia prepared with a hydrolysis molar ratio = 1) shows a progressive deactivation in successive tests due to sulphur leaching which induces an activity in the homogeneous phase.
