ABSTRACT
Catalysts ............................................................................. 321 10.2.2Catalyst Pretreatment Effects ........................................................... 323
10.2.2.1Pretreatment of Fluorite-Like Oxide Catalysts .................. 323 10.2.2.2 Pretreatment of the Perovskite-Oxide Catalysts ................ 325
10.2.3Activation at Reactive Conditions .................................................... 327 10.2.3.1Perovskites ......................................................................... 327 10.2.3.2Fluorites ............................................................................. 329
10.2.4Steady-State Catalytic Activity......................................................... 330 10.2.4.1 Perovskites ......................................................................... 330 10.2.4.2Fluorites ............................................................................. 332 10.2.4.3Catalysts Based on Perovskite + Fluorite Nanocomposites ... 334
Electricity and hydrogen are now considered as the dominant energy carriers in moderngreenchemicalandprocessengineering.Nowadays,almostallofthehydrogenisproducedcommerciallyfromnaturalgas(NG)viasteamreformingtosynthesisgas,alsodenotedassyngas,thatis,amixturecomprisingH2 and CO. Synthesis gasproductionviaalternativeroutestotraditionalmethanesteamreforminghas recentlyattractedconsiderableattentionduetobothenvironmentalandcommercial reasons[1,2].TransformationofNGusingcarbondioxideandreformingofoxygenatesderivedfromfastpyrolysisofbiomasstosynthesisgasarethemostpromising processes [3-14]. Dry reforming transforms cheap and undesirable greenhouse gases suchasmethaneandcarbondioxideandisparticularlyimportantinthecaseof biogas or gas ‚elds containing a signi‚cant amount of both compounds.
