Chemical and catalytic activation of methane by metal oxide surfaces. Annual report, September 1, 1988-August 31, 1989

Technical Report · Fri Jun 01 04:00:00 EDT 1990

OSTI ID:6351183

McCarty, J G

The objectives of this research project are to investigate the nature of the surface oxygen centers capable of selective conversion of methane into hydrocarbon fuels through catalytic partial oxidation and to determine the role of homogeneous reactions in the catalytic coupling process. Major accomplishments of the current research include continuing development of a kinetic model that describes the contributions of homogeneous reactions to the conversion and selectivity of catalytic methane co-oxidation processes; development of nonvolatile catalysts, SrZrO3 and SrTiO3, with maintainable high selectivity and activity for catalytic dimerization of methane; measurement of rates and product selectivity for the partial oxidation of methane dimerization product ethane and possible product methanol by Na/CaO and SrZrO3 catalysts; and identification of important gas phase reactions that may ultimately limit higher hydrocarbon yield with high oxygen partial pressure. The understanding of the catalytic methane conversion chemistry gained from the current results provides a set of conclusions and hypotheses for choosing new approaches for highly selective co-oxidative catalytic dimerization of methane. Three new tasks designed to overcome the limitations of current direct methane conversion processes are proposed for the following year.

• Research Organization: SRI International, Menlo Park, CA (USA)
• OSTI ID: 6351183
• Report Number(s): PB-90-270430/XAB; CNN: GRI-5086-260-1328
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
10 SYNTHETIC FUELS
100200 -- Synthetic Fuels-- Production-- (1990-)
ALCOHOLS
ALKALI METALS
ALKALINE EARTH METAL COMPOUNDS
ALKANES
ALKENES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CATALYSIS
CATALYTIC EFFECTS
CATALYTIC REFORMING
CHALCOGENIDES
CHEMICAL ACTIVATION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DIMERIZATION
DOCUMENT TYPES
ELEMENTS
EQUATIONS
ETHANE
ETHYLENE
HYDROCARBONS
HYDROXY COMPOUNDS
KINETIC EQUATIONS
KINETICS
MATHEMATICAL MODELS
METALS
METHANE
METHANOL
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PARTIAL PRESSURE
PEROVSKITES
POLYMERIZATION
PROGRESS REPORT
REACTION INTERMEDIATES
REACTION KINETICS
REFORMER PROCESSES
SODIUM
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SURFACE PROPERTIES
SYNTHESIS
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES