Effects of Pressure on CO₂Reforming of CH₄over Ni/Na-Y and Ni/Al₂O₃Catalysts

Tri-reforming of methane: a novel concept for catalytic production of industrially useful synthesis gas with desired H2/CO ratios

“…Our computational analysis shows there are benefits of incorporating steam (H 2 O) and oxygen (O 2 ) simultaneously in CO 2 reforming of CH 4 [10,11]. Prior work established that CO 2 reforming encounters carbon formation problem, even with noble metal catalysts, particularly under elevated pressure [11][12][13]. Some recent laboratory studies with pure gases have shown that the addition of oxygen to CO 2 reforming [14][15][16][17] or the addition of oxygen to steam reforming of CH 4 [18] can have some beneficial effects in terms of improved energy efficiency or synergetic effects in processing and in mitigation of coking.…”

“…For CO 2 reforming of CH 4 , carbon formation is an important problem [12][13][14][15]. Temperature-programmed oxidation (TPO) results show that the used Haldor-Topsoe R67 catalyst after 300 min time-on-stream for CO 2 reforming at 850 8C and 1 atm contained 21.8 wt.% carbon [7,8].…”

Highly Active and Stable Ni–SiO2Prepared by a Complex-Decomposition Method for Pressurized Carbon Dioxide Reforming of Methane

“…Generally, natural gas is preserved and transported under high pressures. Moreover, the conversion of syngas into chemicals and fuels, such as in Fischer–Tropsch and methanol syntheses, is also commonly carried out at high pressures. , Thus, from an economic viewpoint, it is more practical and desirable, in terms of higher process efficiency, to perform the reforming of methane at high pressures. , However, an overwhelming amount of research on CDR is performed under mild reaction conditions, namely, a higher CO 2 /CH 4 molar ratio than the stoichiometric value of 1.0; high reaction temperatures; and, especially, atmospheric pressure. In addition, the reaction behavior of CDR at elevated pressures differs from that at atmospheric pressure.…”