Platinum-rhenium interaction: a temperature-programmed reduction study

Conference · Tue Feb 01 04:00:00 EST 1983 · Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States)

OSTI ID:5841606

Mieville, R L

A platinum-rhenium reforming catalyst has better performance than a platinum catalyst due to a lower decline rate of the activity. It has been suggested that this greater stability of the Pt-Re catalyst is due to an alloy effect which proposed that the Pt is modified by the intimate contact of Re. In order to determine the mechanism of the improved performance, temperature-programmed reduction (TPR) studies of the Pt-Re catalyst along with mechanical mixtures of Pt and Re catalyst along with mechanical mixtures of Pt and Re catalysts in alumina were conducted. Nine graphs of the TPR data were presented. It was concluded that the presence of Pt caused catalytic reduction of Re when cosupported on alumina and preoxidized at 300/sup 0/C; while reversal from catalytic to non-catalytic at 500/sup 0/C. Also, the interactive reduction also occurs with intimate mixtures of Pt and Re catalysts.

• Research Organization: Amoco Oil Co., Naperville, IL
• OSTI ID: 5841606
• Report Number(s): CONF-830303-
• Conference Information: Journal Name: Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States) Journal Volume: 28:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CATALYTIC REFORMING
CHALCOGENIDES
CHEMICAL REACTIONS
DEACTIVATION
ELEMENTS
METALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
REDUCTION
REFORMER PROCESSES
RHENIUM
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS