Chemical studies on SYNTHOIL process. First annual report, September 1, 1975--August 31, 1976. [Catalyst improvement; effects of mineral content of coal; kinetics of hydrodesulfurization and liquefaction]

Technical Report · Mon Nov 01 04:00:00 EST 1976

OSTI ID:7231678

Holloway, P H; Granoff, B; Nowak, E J; Mullendore, A W; Lieberman, M L

This is the first annual report of a 2-yr program of study in support of the synthoil process for coal liquefaction. The overall program consists of three tasks: Catalyst Improvement, in which the mechanisms of catalyst deactivation 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. Progress in each task area is reported. Extensive characterization has been completed on new, presulfided and used catalyst from several synthoil reactor runs of up to 168 h in duration. A variety of microscopy, surface area, diffraction and spectroscopy techniques were utilized. The catalyst, Co-MoO/sub 3/, serves the multiple functions of catalyzing heteroatom removal, cracking, and hydrogenation. A stirred batch autoclave system was assembled to study mineral matter effects on coal liquefaction. Operating parameters of pressure, temperature, and residence time were determined in a series of experiments on a moderately reactive coal and then applied to screening experiments on a variety of coals, most of which were of high volatile bituminous rank. A bench scale synthoil reactor for the kinetic studies of coal liquefaction and hydrodesulfurization was designed and is being constructed. The reactor components have all been received and assembly is at 50 percent of completion. The experimental plan for kinetic studies is presented.

• Research Organization: Sandia Labs., Albuquerque, NM (USA)
• DOE Contract Number: E(29-1)-789
• OSTI ID: 7231678
• Report Number(s): SAND-76-0644
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ASHES
AUTOCLAVES
BENCH-SCALE EXPERIMENTS
BITUMINOUS COAL
BLACK COAL
CARBONACEOUS MATERIALS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL
COAL LIQUEFACTION
COAL LIQUIDS
COBALT
CRACKING
DECOMPOSITION
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGENATION
KINETICS
LIQUEFACTION
METALS
MINERAL WASTES
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
OXIDES
OXYGEN COMPOUNDS
POISONING
PYROLYSIS
REACTION KINETICS
RESIDUES
SOLID WASTES
SURFACE PROPERTIES
SYNTHOIL PROCESS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WASTES