The decomposition and steam reforming of dimethyl ether on supported Mo2C catalysts

Production of Hydrogen from Dimethyl Ether over Supported Rhodium Catalysts

“…[21][22][23][24][25][26][27][28] Recently, we reported that Mo 2 C prepared on carbon Norit is an effective and stable catalyst, not only in the reforming of ethanol [29,30] and methanol, [31,32] but also for the production of hydrogen from DME. [33] On 10 % Mo 2 C/Norit, complete conversion of dimethyl ether was attained at 873-923 K. Adding water to DME slightly improved the production of hydrogen. In the utilization of the high efficiency of the Mo 2 C/Norit in methanol decomposition, carbide was combined with various solids effective in the hydrolysis of dimethyl ether into methanol.…”

“…In the case of Mo 2 C catalyst prepared on Norit, the decomposition and reforming of DME was a slow and limited processes, which we ascribed to the lower efficiency of Mo 2 C in breaking one of the CÀO bonds in adsorbed DME. [33] High yields of hydrogen production were, however, achieved when we applied a double-bed catalyst consisting of Al 2 O 3 and Mo 2 C/Norit. Alumina efficiently promoted the hydrolysis of DME to methanol, the steam reforming of which was catalyzed by Mo 2 C/Norit.…”

“…[35] Experimental Section General Methods: The catalytic reaction was carried out at 1 atm pressure in a fixed-bed, continuous flow reactor, made of a quartz tube (8 mm i.d.). [32,33] The flow rate was, in general, 40 mL min…”

Hydrogen Formation in the Reactions of Methanol on Supported Au Catalysts

“…Platinumgroup metals are the commonly used catalysts for the decomposition and reforming of alcohols [1][2][3][4][5][6]. Recently we found that Mo 2 C prepared by the reaction of MoO 3 with multiwall carbon nanotube and activated carbon Norit is also an excellent catalyst for the decomposition and reforming of oxygenated compounds such as methanol [7,8], ethanol [9,10] and dimethyl ether [11]. An important property of the Mo 2 C/C is its high stability, which means that the conversions and the H 2 yields decreased only by few percents even after 30-75 h of reaction at 673-773 K.…”

Improved Stability of Pd/Al2O3 Prepared from Palladium Nanoparticles Protected with Carbosilane Dendrons in the Dimethyl Ether Steam Reforming Reaction

“…In recent years, several studies have been reported with regard to the architecture of the sup-port [43][44][45][46][47][48][49][50][51][52][53][54] and the use of Mo2C. [55] One of the major drawbacks of the catalysts used for DME steam reforming is the sintering of the metal phase under the operation conditions required for the reaction with the concomitant loss of activity. This is particularly relevant if real operation conditions are selected, in which high temperatures are required for an effective opera-tion because of the endothermic character of the process and no diluents are allowed.…”