Size-reversing materials for reforming in cyclic flow reactors

US11859133B2 · kind B2 · utility

Assignee

• Exxon Mobil Technology and Engineering Company · US

Inventors

• Wesley Sattler · Bedminster, US
• Keith R. Hajkowski · Raritan, US
• ChangMin Chun · Madison, US
• Partha Nandi · Annandale, US
• Vera Grankina · Union Dale, US
• Joseph E. Gatt · Annandale, US
• Ning Ma · Nanhu, CN
• Anastasios I. Skoulidas · Bristow, US
• William R. Gunther · Clinton, US
• Everett J. O'Neal · Asbury, US

Key dates

• Filing date: Oct 7, 2021
• Grant date: Jan 2, 2024
• Expiry date: Oct 7, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/584
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Systems and methods are provided for using size-reversing materials in vessels where direct heating is used to at least partially provide heat for reforming reactions under cyclic reforming conditions. An example of a size-reversing material is the combination of NiO and Al2O3. It has been discovered that size-reversing materials can undergo a phase transition that can assist with re-dispersion of metal at elevated temperatures. This can assist with maintaining catalytic activity for reforming over longer time periods in the presence of cyclic reforming conditions.