公开(公告)号：US20250025866A1

公开(公告)日：2025-01-23

申请号：US18907836

申请日：2024-10-07

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Keith R. HAJKOWSKI ,  Wesley SATTLER ,  Michele A. WARREN

IPC: B01J35/00 ,  B01J21/04 ,  B01J23/44 ,  B01J23/46 ,  B01J23/755 ,  B01J23/96 ,  B01J35/57 ,  B01J37/00 ,  B01J38/12 ,  C01B3/40

Abstract: Palladium-based catalyst systems are provided for reforming of hydrocarbons, along with methods for using such catalyst systems. The catalyst systems can be deposited or otherwise coated on a surface or structure, such as a monolith, to achieve improved activity and/or structural stability. It has been discovered that loss of catalytic activity for reforming over time can be reduced or minimized for palladium-based catalyst system by operating the reactor/performing a reaction cycle so that the portion of the reaction environment containing the palladium-based catalyst system is not exposed to oxidizing conditions at temperatures between 600° C. and 900° C. Optionally, the reactor can also be operated/the reaction cycle can also be designed so that during a reforming cycle, the peak temperature in the portion of the reaction environment containing the palladium-based catalyst system is 1300° C. or less.