Patent ID: 7976797

Claim:
A reverse flow regenerative pyrolysis reactor system comprising: a first reactor and a second reactor in flow communication with said first reactor, said first reactor comprising a first channel for conveying a first reactant through the first reactor to said second reactor and a second channel for conveying a second reactant through the first reactor to said second reactor, wherein said second reactor is configured to exothermically react the first reactant with the second reactant in the second reactor to heat the second reactor and endothermically react a hydrocarbon feedstock once exothermic reaction products are removed, wherein said second reactor comprises a stabilized refractory grade zirconia in a reactive region of said second reactor, and wherein said stabilized refractory grade zirconia is stabilized by at least one stabilization component comprising at least one of CaO, MgO, Y 2 O 3 CeO 2 , and mixtures thereof and comprises at least 1.0 weight percent of said stabilization component, based upon the total weight of said stabilized refractory grade zirconia.