A laboratory study was performed to assess the ability of monolithic model low temperature N[O.sub.x] adsorbers
containing Pd on a ceria/zirconia washcoat to store and release N[O.sub.x] during a reactor-based transient test.
After oxidation in the copper oxide bed, the helium will cool down and then enter the molecular sieve adsorber
to adsorb the water including [H.sub.2]O, HTO, and [T.sub.2]O, before reaching sampling point C, which should have very little H-3.
Newer membrane adsorbers
using strong AEX ligand or hydrogel technologies in hybrid purifiers offer higher performing product technologies over a range of salt concentrations.
Beale et al., "Open randomized phase II trial of an extracorporeal endotoxin adsorber
in suspected Gram-negative sepsis," Critical Care Medicine, vol.
De esta forma se han obtenido arcillas modificadas con diferentes propiedades de superficie, que pueden ser empleadas para adsorber
diferentes tipos de compuestos dependiendo de su afinidad quimica.
(25) The heat transfer fluid circulates through four components: (1) Adsorber
1 in adsorption phase, (2) the heat source; (3) Adsorber
2 in desorption phase, and (4) heat sink.
The heat transfer between the adsorber
and its contacting heat source or sink varies significantly during the period of the cycle as shown in Figure 3 (b).
As shown in this figure, the system begins the process when Adsorber
1 is heated by the exhaust gas released from the engine.
K, [D.sub.L] and [k.sub.eff] for the fixed bed adsorber
are shown in Table 1, and results with a 100% [Al.sub.2][O.sub.3] bed composition are included for comparison.
Cummins will utilize next-generation aftertreatment research and technology on its ISL 9-liter engine for the project to verify the emissions reduction capability of a system incorporating both a diesel particulate filter and a NOx adsorber
The Agency also cites NOx adsorber
technologies and selective catalytic reduction systems as the best compliance options for non-emergency engines with 75 horsepower or greater with a displacement of less than or equal to 10 cylinders.