Chemical studies on SYNTHOIL process. Third quarterly report, March 1--May 31, 1976
- eds.
The program consists of three tasks; ''Catalyst Improvement'' in which the mechanisms of catalyst deactivation and methods of reactivation will be explored; ''Ash Effects'' in which the effect of the mineral content of coals on liquefaction will be assessed in autoclave experiments; and ''Kinetic Studies'' in which a bench scale reactor will be set up to study the effects of process parameters on the kinetics of hydrodesulfurization and liquefaction. Analysis of used catalyst from a series of SYNTHOIL reactor runs has continued. Concentration profiles of Ti and Fe in used catalysts were found to match the form of diffusion profiles. The extracted diffusion coefficients provide important clues to the transport mechanism. Pore size distribution studies of used catalysts have revealed a general reduction of pore volume at all effective pore diameters and suggests the occurrence of coking. Micropulse reactor results indicate that the cracking function of the catalyst in use degrades more than the hydrodesulfurization and dehydrogenation functions. The batch autoclave apparatus has undergone checkout and has been modified to reduce product losses. Several coal hydrogenation runs have been made. Quantitative x-ray diffraction analyses of the mineral content of eight coals are reported. The construction of the bench scale flow reactor is proceeding and further evaluations of the kinetics studies have been made.
- Research Organization:
- Sandia Labs., Albuquerque, N.Mex. (USA)
- DOE Contract Number:
- E(29-1)-789
- OSTI ID:
- 7350266
- Report Number(s):
- SAND-76-0335
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ASHES
AUGER ELECTRON SPECTROSCOPY
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL ANALYSIS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COAL LIQUEFACTION
COAL LIQUIDS
COHERENT SCATTERING
DESULFURIZATION
DIFFRACTION
ELECTRON MICROPROBE ANALYSIS
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
EMISSION SPECTROSCOPY
LIQUEFACTION
MEASURING INSTRUMENTS
MICROANALYSIS
MICROSCOPY
POROSIMETERS
RESIDUES
SCATTERING
SPECTROSCOPY
SURFACE PROPERTIES
SYNTHOIL PROCESS
X-RAY DIFFRACTION