Novel nanodispersed coal liquefaction catalysts: Molecular design via microemulsion-based synthesis. Technical progress report, July--September 1991
The objective of this project is to pursue the development of highly dispersed and inexpensive catalysts for improved coal solubilization and upgrading of coal liquids. A novel study of the synthesis of liquefaction catalysts of nanometer size will be carried out. It is based on the molecular design of reverse micelles (microemulsions). These surfactant-stabilized, metalbearing microdrops offer unique opportunities for synthesizing very small particles by providing a cage-like effect that limits particle nucleation, growth and agglomeration. The emphasis will be on iron- and molybdenum-based catalysts, but the techniques to be developed should also be generally applicable. The size of these very small and monodispersed particles will be accurately determined both separately and after in situ and ex situ coal impregnation. The as-prepared nanoparticles as well as the catalyst-impregnated coal or char matrix will be characterized using the following techniques: dynamic light scattering, x-ray diffraction, x-ray photoelectron spectroscopy, scanning and/or transmission electron microscopy, and selective chemisorption.
- Research Organization:
- Pennsylvania State Univ., University Park, PA (United States). Dept. of Materials Science and Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-90PC90054
- OSTI ID:
- 10158687
- Report Number(s):
- DOE/PC/90054-T4; ON: DE92015510
- Resource Relation:
- Other Information: PBD: Oct 1991
- Country of Publication:
- United States
- Language:
- English
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Novel nanodispersed coal liquefaction catalysts: Molecular design via microemulsion-based synthesis. Technical progress report, April 1992--June 1992
Novel nanodispersed coal liquefaction catalysts: Molecular design via microemulsion-based synthesis. Technical progress report, July 1992--September 1992
Related Subjects
COAL LIQUEFACTION
CATALYSTS
SYNTHESIS
MOLYBDENUM SULFIDES
CATALYTIC EFFECTS
IRON COMPOUNDS
PROGRESS REPORT
PH VALUE
MICROEMULSIONS
PHASE STUDIES
SOLUBILITY
CHEMISORPTION
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY
SCANNING ELECTRON MICROSCOPY
HYDROGENATION
DESULFURIZATION
PARTICLE SIZE
BITUMINOUS COAL
SUBBITUMINOUS COAL
010405
HYDROGENATION AND LIQUEFACTION