| CPC B01J 21/066 (2013.01) [B01J 23/10 (2013.01); B01J 35/50 (2024.01); B01J 35/51 (2024.01); B01J 35/612 (2024.01); B01J 35/613 (2024.01); B01J 35/615 (2024.01); B01J 37/18 (2013.01); C01G 25/02 (2013.01); C07C 5/3332 (2013.01); C01P 2002/76 (2013.01); C01P 2006/12 (2013.01); C07C 2521/06 (2013.01)] | 15 Claims |
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1. A catalyst composition, comprising:
zirconium oxide (ZrO2), wherein the catalyst composition is free of at least one of chromium or a precious metal, wherein the catalyst composition has been pretreated by contacting the catalyst composition with a pretreatment gas comprising a reducing agent at a concentration of about 1 mol % to about 10 mol %, and wherein the reducing agent comprises at least one of hydrogen (H2), carbon monoxide (CO), ammonia or methane (CH4).
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