Characterization and performance evaluation of Ni-based catalysts with Ce promoter for methane and hydrocarbons steam reforming process

Recent Advances in Supported Metal Catalysts for Syngas Production from Methane

“…The promotion of 10 wt % Ni/SBA-15 with 1 wt % Ce was found to further improve the catalyst stability and increase the CH 4 reaction rate. This is mainly attributed to the small particle sizes (11 nm), good Ni dispersion (10%), and the excellent oxygen storage capacity of Ce promotors [81]. The excellent textural properties of SBA-15 (BET surface area of 300 m 2 /g and pore volume of 0.6 cm 3 /g) provided a large surface for Ni deposition without any agglomeration, similar to previous findings [13,76].…”

“…Table 4 presents a summary of the recent advances in the catalyst development for SRM in the past five years. The silicalite shell was grown around Al2O3 followed by impregnation to introduce Ni into the core of the catalyst The effects of Ce as a promotor for Ni-based catalyst was investigated [81] 5 wt % Ni/SiO 2 The catalytic performance of different Ni-based catalysts that were prepared using incipient wetness impregnation (SiO 2 , Al 2 O 3 ) and co-precipitation technique (Mg-Al and Zn-Al) was evaluated for SRM at low temperature (less than 600 • C) by Nieva et al [88]. The catalysts prepared via the co-precipitation route (Ni/Mg-Al and Ni/Zn-Al) was found to have better activity and stability compared to Ni/SiO 2 and Ni/Al 2 O 3 samples due to the higher metal-support interactions of these catalysts.…”

Direct Power Generation from Low Concentration Coal‐Bed Gas by a Catalyst‐Modified Solid Oxide Fuel Cell

“…CeO 2 has been reported to effectively suppress carbon deposition in a hydrocarbon atmosphere due to the mobile lattice oxygen in CeO 2 , originated from the change of oxidation states of cerium between +3 and +4 . Yang reported that adding cerium to a Ni‐based catalyst actually restrained the crystalline growth of NiO particles . However, Pantaleo reported 6 wt.% Ni‐containing CeO 2 catalyst still experienced coking during MPO test with an O/C ratio of around 1 .…”

Sustainable hydrogen-rich syngas from steam reforming of bio-based acetic acid over ZnO and CeO2–ZnO supported Ni-based catalysts

“…In order to further improve the thermal stability and carbon deposition resistance of the catalyst, CeO 2 can be introduced to modify Ni/ZnO to adjust the acid-base properties and oxygen vacancy distribution on the catalyst surface. CeO 2 is considered to be a good support for the development of SR catalysts due to its unique functions related to oxygen migration and storage capacity 30 as well as the formation of the metal-support redox couple, thereby promoting the strong interaction between the metal and support, 31,32 which helps to enhance the dispersion of active components, [33][34][35] improve the thermal stability of the catalyst 36 and inhibit carbon deposition. 37,38 In this study, sustainable hydrogen-rich syngas from SR of bio-based acetic acid over ZnO and CeO 2 -ZnO supported Nibased catalysts was studied by means of a bench-scale xedbed unit combined with NDIR/TCD techniques.…”