−− Rh, Ni and Rh-Ni catalysts were prepared by wet impregnation of La2O3. The Rh content was modified but the Ni loading was kept constant at 2 wt%. The solids were calcined at 823 K in air flow and were reduced at 973 K in flowing hydrogen. The activity, stability, and residue formation during the CO2 reforming of CH4, of all the catalysts were tested in a fixed-bed reactor. Those with low car...

A microchannel reactor specially designed for periodic operation and a process to deposit a catalyst, -alumina, inside the reactor channels were developed. The hydrodynamics of the reactor was characterised. Although the #ow in the microchannels is laminar, a uniform radial concentration pro"le and consequently a narrow residence time distribution were obtained. Depending on the manufacturing m...

The structure and performance of promoted Ni/Al2O3 with Cu via thermocatalytic decomposition (TCD) CH4 mixture (2% CH3OH) were studied. Mesoporous Cat-1 Cat-2 synthesized by the impregnation method. corresponding peaks nickel oxide copper in XRD showed presence oxides as a mixed alloy calcined catalyst. Temperature program reduction (TPR) that enhanced reducibility catalyst peak shifted toward ...

shape-selective methylation of naphthalene (naph) over sapo-11 zeolite was carried out in a fixed-bed flow reactor under atmospheric pressure. some zeolites, such as h-beta (hβ), husy and zsm-5 were also evaluated for comparison with sapo-11 zeolite.the results showed that sapo-11 exhibited higher stability, higher selectivity of  2,6-dimethylnaphthalene (2,6-dmn), and higher 2,6-/2,7-dmn ratio...

Microwave irradiation can intensify catalytic chemistry by selective and controlled microwave-catalytic packed-bed interaction. However, turning it to reality from laboratory practical applications is hindered challenges in the reactor design scale-up. Here, we present a novel, rectangular traveling-wave microwave (RTMR) provide an easy-to-handle, 3-step procedure of such reactor. The multiphys...

New catalytic materials, based on palladium immobilized in ionic liquid supported on alginate, were elaborated. Alginate was associated with gelatin for the immobilization of ionic liquids (ILs) and the binding of palladium. These catalytic materials were designed in the form of highly porous monoliths (HPMs), in order to be used in a column reactor. The catalytic materials were tested for the ...

a computational fluid dynamic (cfd) study of methanol (meoh) to dimethyl ether (dme) process in an adiabatic fixed-bed reactor is presented. one of the methods of industrial dme production is the catalytic dehydration of meoh. kinetic model was derived based on bercic rate. the parameters of this equation for a specific catalyst were tuned by solving a one-dimensional homogenous model using mat...

The effect of temperature and hydrogen addition on undesired carbonaceous deposit formation during methane coupling was studied in DBD-plasma catalytic-wall reactors with Pd/Al2O3, using electrical power to drive the reaction. Experiments thin catalyst layers allowed comparison performance empty catalytic wall without significantly influencing plasma properties. product distribution varies stro...