Hydrogen production via steam reforming of propane over supported metal catalysts

Support Effects on the Activity of Ni Catalysts for the Propane Steam Reforming Reaction

“…The catalytic performance of the synthesized materials was studied in a tubular fixed-bed quartz reactor under atmospheric pressure using an apparatus which has been described in detail elsewhere [ 11 ]. The reaction conditions were as follows: temperature range 400–750 °C, H 2 O / C = 3.25, and gas hourly space velocity (GHSV) = 55,900 h −1 .…”

“…Under propane steam reforming conditions, the water-gas shift reaction occurs simultaneously at low temperatures contributing to H 2 and CO 2 production, whereas CO/CO 2 methanation may also run in parallel yielding CH 4 and H 2 O. Methane can be also formed via hydrogenation of CH x species derived by the dissociative adsorption of propane on the catalyst surface or through propane decomposition accompanied by ethylene production. In certain cases, the C 2 H 4 , CH 4 and CO thus produced are further decomposed leading to the formation of coke on the catalyst surface and consequently, to its progressive deactivation [ 11 , 12 ].…”

“…Supported noble metal (Rh, Ru, Pt, Pd) catalysts have been proposed to efficiently catalyze the production of H 2 via propane steam reforming exhibiting high resistance to coke formation [ 3 , 11 , 13 , 14 ]. However, the high cost and low availability of noble metals are major drawbacks restricting their use in practical applications [ 15 , 16 , 17 ].…”

Propane Steam Reforming over Catalysts Derived from Noble Metal (Ru, Rh)-Substituted LaNiO3 and La0.8Sr0.2NiO3 Perovskite Precursors

“…However, the application of high temperatures results in the sintering of Ni particles and the concomitant deterioration of catalytic performance [20,21]. In addition, exposure of Ni-based catalysts to reforming reaction conditions results in carbon deposition on their surface via the Boudouard reaction or/and the decomposition of propane and by-product hydrocarbons such as methane and ethylene, which further accelerate the catalyst deactivation [11,15,[22][23][24][25]. Consequently, research efforts currently focus on the development of novel catalytic systems, with improved resistance against coke deposition and metal particle agglomeration [21].…”

“…Recently, perovskite-derived catalysts have attracted significant attention for the production of H 2 or syngas via reforming reactions [ 3 ] because of their high activity, carbon tolerance, thermal stability, and low cost [ 23 , 31 ]. Perovskites are a class of crystalline oxides described by the general formula ABO 3 , where the A-site (12-fold coordination) is generally occupied by an alkaline-earth or alkali metal cation with a larger size, and the B-site (6-fold coordination) is occupied by a transition metal ion with a smaller radius [ 3 , 32 , 33 ].…”