CO clean-up transient device integrated to a preferential oxidation reactor for PEFC electric vehicles

Role of trace chlorine in Ni/TiO2 catalyst for CO selective methanation in reformate gas

“…Preferential oxidation of CO (CO-PROX) is widely utilized for removing CO in the reformate gas after the WGS reaction [1][2][3][4][5][6][7][8]. Precious metal catalysts such as Pt [4], Rh [5], and Au [6] supported on various metal oxides and base metal catalysts such as supported Cu based catalysts [7,8] were reported to be effective for the PROX reaction.…”

“…(1) has been considered as an effective CO removal process alternative to the CO-PROX process [9]. CO + 3H 2 → CH 4 + H 2 O ΔH° = -206 kJ mol -1 (1) Since the CO-SMET process utilizes CO and hydrogen in the reformate gas and thus does not require other additional reactants such as air in the CO-PROX process, this process can avoid the above-mentioned disadvantages of the CO-PROX process. In particular, there is no need of an air blower system specialized for the PROX reactor, which can decrease the total number of parts for the system and can result in the reduction of the manufacturing cost.…”

Fuel Processors

“…Teng et al [213] The main challenges of a PROX system are the development of an active and selective catalyst, effective process control and a good reactor design. Different concepts have been published [58,178,[221][222][223][224]. Lee et al [178] show that the CO concentration can be lowered from 1.8% down to 20 ppm during start-up within 3 min in the 10-kW e class.…”

“…Lee et al [178] show that the CO concentration can be lowered from 1.8% down to 20 ppm during start-up within 3 min in the 10-kW e class. Recupero et al [222] observed strong CO peaks during load changes which should be smoothed by a subsequent adsorption process [223]. Recupero et al [222] observed strong CO peaks during load changes which should be smoothed by a subsequent adsorption process [223].…”

Minimisation of carbon monoxide in a hydrogen stream for fuel cell application

“…Qu et al [69] have shown the importance of particle size for Ag/SiO 2 catalysts, but Cu based catalysts appear to have more promise, either as supported CuCl [70] or as Cu-CeO 2 solid catalysts [71,72]. Sedurak et al [72] investigated the kinetics of the reaction, and suggested the lattice oxygen could be involved, even at low temperatures.…”