Formation and characterization of highly-dispersed metal colloid catalysts
The objective of this research is to explore the feasibility of using small metal colloids, in microemulsions, as catalysts. The product of this work will be a new concept for tailoring highly dispersed materials to specific catalytic reactions. The knowledge gained from the proposed research will be broadly applicable to variety of reactions, including hydrogenation, synthesis gas conversion, and hydrogen conversion. To achieve this objective, a plan has been formulated to prepare and characterize catalyst particles in organic solvents and to explore the use of catalyst particles. In this paper, we will discuss the use of inverse micelles to solubilize significant quantities of metal compounds in hydrocarbon solvents and their reduction, decomposition, and sulfidation to give colloidal catalytic materials. We will also discuss in detail the characterization of these materials, present preliminary results for the catalytic hydropyrolysis of coals, and discuss the results of our evaluation of selected metal colloids in catalytic hydrogenation of pyrene. 9 refs., 3 tabs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6250354
- Report Number(s):
- SAND-91-1892C; CONF-9109211-5; ON: DE92002346
- Resource Relation:
- Conference: Direct liquefaction contractors' review meeting, Pittsburgh, PA (United States), 3-5 Sep 1991
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
COAL
PYROLYSIS
COLLOIDS
CATALYTIC EFFECTS
METALS
REDUCTION
SULFIDATION
PYRENE
HYDROGENATION
BITUMINOUS COAL
GOLD
HYDROCARBONS
IRIDIUM
IRON
IRON SULFIDES
MICELLAR SYSTEMS
MICROEMULSIONS
MOLYBDENUM SULFIDES
PALLADIUM
PLATINUM
RHODIUM
SURFACE AREA
SURFACTANTS
AROMATICS
BLACK COAL
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
CONDENSED AROMATICS
DECOMPOSITION
DISPERSIONS
ELEMENTS
EMULSIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
IRON COMPOUNDS
MATERIALS
MOLYBDENUM COMPOUNDS
ORGANIC COMPOUNDS
PLATINUM METALS
REFRACTORY METAL COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
010409* - Coal
Lignite
& Peat- Pyrolysis & Carbonization- (1987-)
010405 - Coal
Lignite
& Peat- Hydrogenation & Liquefaction
360601 - Other Materials- Preparation & Manufacture