New and improved dispersion and recovery techniques for slurry phase catalysis. Quarterly report, October-December 1984

Technical Report · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5900450

Tarrer, A R; Guin, J A; Curtis, C W; Tatarchuk, B J

The present report concerns an investigation of the influence of catalyst pellet particle size on the hydrogenation of naphthalene. The objective of this phase of the work was to investigate, in both a theoretical and experimental manner, the effect of catalyst particle size on the selectivity for tetralin production, i.e. the amount of tetralin produced at a given naphthalene conversion. The hydrogenation of naphthalene was studied experimentally in batch microreactors in the presence of a NiMo/Al/sub 2/O/sub 3/ supported catalyst. Five catalyst particle sizes were utilized in the experimental program: 1/10'', 1/16'', 1/32'', and 1/64'' pellets, and powdered catalyst (-80 US mesh or smaller). Naphthalene was hydrogenated to form tetralin, which was further hydrogenated to form decalins. This system was mathematically modeled as first order consecutive catalytic reactions. A mathematical analysis was developed to predict the behavior of such a reaction system. Experimental results were in fair agreement with theoretical predictions. Naphthalene conversion increased with decreasing catalyst to produce tetralin (an active H-donor in coal liquefaction processes) increased with a decrease in catalyst particle size, in agreement with theoretical predictions. 20 refs., 29 figs., 13 tabs.

• Research Organization: Auburn Univ., AL (USA). Coal Conversion Lab.
• DOE Contract Number: AC22-83PC60044
• OSTI ID: 5900450
• Report Number(s): DOE/PC/60044-T5; ON: DE85011811
• 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)
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
AROMATICS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL LIQUEFACTION
CONDENSED AROMATICS
CORRELATIONS
CYCLOALKANES
DATA
DECALIN
DIFFUSION
ELEMENTS
EXPERIMENTAL DATA
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
INFORMATION
LIQUEFACTION
MASS TRANSFER
MATHEMATICS
MEDIUM PRESSURE
METALS
MOLYBDENUM
NAPHTHALENE
NICKEL
NUMERICAL ANALYSIS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
RESEARCH PROGRAMS
SEPARATION PROCESSES
SIZE
SPECIFICITY
STRUCTURAL MODELS
TETRALIN
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
YIELDS