Composite-bed reactor for upgrading coal-derived liquids: Annual report, October 1, 1984-March 31, 1986

Technical Report · Wed Jul 30 04:00:00 EDT 1986

OSTI ID:5165933

Crynes, B L; Seapan, M

Two separate studies were addressed: (1) an investigation of the effect of composite-bed reactors containing catalysts with different active metal loadings on the upgrading of a SRC coal liquid and (2) an investigation to characterize catalyst deactivation as a function of quinoline concentrations in the feedstock. A two-stage trickle bed reactor was successfully used to upgrade a coal-derived liquid in composite beds containing catalysts with different active metal loadings. The composite beds did affect upgrading performance (HDN, hydrogenation, hydrocracking). However, the composite beds did not improve performance over catalysts beds containing the best catalyst (Ni-Mo) which were placed in both zones. A composite bed containing Ni-Mo catalyst in the top zone and Co-Mo catalyst in the bottom zone did perform as well as the bed containing Ni-Mo catalyst in both zones. Composite beds containing the best hydrogenation and HDN catalyst (Ni-Mo) in the top zone and Co-Mo or Ni-W catalyst in the bottom zone had better nitrogen removal than beds containing the same catalysts in reverse order. In the quinoline study, the HDN ability of a catalyst strongly depends on the level of nitrogen poisoning in the feedstock. The HDN ability of the catalyst decreased more than 50% as the quinoline concentration increased from 10 to 30%. The adsorption of basic nitrogen compounds on the acid sites contributes to catalyst decay during the early portion of the experimental runs and during the latter part deactivation occurs by coking. The coke content on a catalyst is increased with increasing quinoline concentration in the feed. The reaction network and, hence, the amount of intermediates in the reaction network are affected by the amount of quinoline in the feedstock. 21 refs., 30 figs., 19 tabs.

• Research Organization: Oklahoma State Univ., Stillwater (USA). School of Chemical Engineering
• DOE Contract Number: FG22-83PC60787
• OSTI ID: 5165933
• Report Number(s): DOE/PC/60787-11; ON: DE86014698
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
AROMATICS
AZAARENES
AZINES
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
CHEMICAL REACTORS
COAL LIQUIDS
COBALT
CRACKING
DATA
DEACTIVATION
DECOMPOSITION
DENITRIFICATION
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
HETEROCYCLIC COMPOUNDS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCRACKING
HYDROGENATION
INFORMATION
LIQUIDS
METALS
MOLYBDENUM
NICKEL
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PROCESSING
PYRIDINES
PYROLYSIS
QUINOLINES
REFINING
RESEARCH PROGRAMS
SRC PROCESS
SURFACE AREA
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
TUNGSTEN