US 11,795,118 B2
Combustion chamber hot face refractory lining
Johannes Ruben Larsen, Fredericia (DK); Fred Brunk, Hattingen (DE); Thomas Sandahl Christensen, Kgs. Lyngby (DK); and Søren Gyde Thomsen, Kgs. Lyngby (DK)
Assigned to Topsoe A/S, Kgs. Lyngby (DK); and P-D Refractories GmbH, Bochum (DE)
Filed by Haldor Topsoe A/S, Kgs. Lyngby (DK); and P-D Refractories GmbH, Bochum (DE)
Filed on Feb. 11, 2021, as Appl. No. 17/173,335.
Application 17/173,335 is a division of application No. 16/332,091, abandoned, previously published as PCT/EP2017/075641, filed on Oct. 9, 2017.
Claims priority of application No. PA 2016 00605 (DK), filed on Oct. 7, 2016.
Prior Publication US 2021/0188722 A1, Jun. 24, 2021
Int. Cl. C04B 35/484 (2006.01); B01J 12/00 (2006.01); B01J 19/02 (2006.01); C04B 41/50 (2006.01); C04B 41/87 (2006.01); C04B 41/00 (2006.01); C04B 35/486 (2006.01); C01B 3/36 (2006.01); C01B 3/38 (2006.01); C04B 35/488 (2006.01); C04B 35/622 (2006.01); C10J 3/72 (2006.01); C04B 111/00 (2006.01)
CPC C04B 41/5042 (2013.01) [B01J 12/005 (2013.01); B01J 19/02 (2013.01); C01B 3/36 (2013.01); C01B 3/386 (2013.01); C04B 35/484 (2013.01); C04B 35/486 (2013.01); C04B 35/4885 (2013.01); C04B 35/62222 (2013.01); C04B 41/009 (2013.01); C04B 41/87 (2013.01); C10J 3/72 (2013.01); B01J 2219/0218 (2013.01); C01B 2203/0261 (2013.01); C01B 2203/1235 (2013.01); C04B 2111/0025 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3246 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/604 (2013.01); C04B 2235/72 (2013.01); C04B 2235/76 (2013.01); C04B 2235/762 (2013.01); C04B 2235/765 (2013.01); C04B 2235/77 (2013.01); C04B 2235/786 (2013.01); C04B 2235/96 (2013.01); C04B 2235/9669 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A combustion chamber operating in a reducing atmosphere comprising a refractory lining, wherein the refractory lining comprises a shaped and fired zirconia refractory material in the form of a brick based on granular CaO and/or MgO stabilized fused zirconia raw material low in silica, consisting essentially of crystalline zirconia, wherein the fired refractory material comprises a total content of tetragonal and cubic ZrO2 measured by X-ray powder diffraction analysis of at least 20% by weight, wherein the tetragonal ZrO2 is in the t-phase, wherein the Al2O3 content is 0.05-6% by weight, and wherein the SiO2 content of bonding phase of the material is below 1.5% by weight.