Catalytic hydrotreatment studies with model compounds. Quarterly report, January 1-March 31, 1984. [Effects of water]

Technical Report · Sun Apr 01 04:00:00 EST 1984

OSTI ID:5070960

Satterfield, C N; Smith, C M

In some of our recent hydrotreating studies with model compounds we found that with a mixture of quinoline and a phenol, the HDN rate of quinoline was enhanced. This was traced to the accelerating effect of water formed by the HDO reaction of the phenol. Water added as such also accelerated the HDN reaction in a reversible manner but some of the effects could not be repeated as the catalyst aged and the effects seemed to be dependent in a complex way on the presence or absence of H/sub 2/S. We have now repeated and extended those studies in a more systematic manner and have prepared a paper for publication describing those results. A copy is attached. An abstract follows: Studies at 375/sup 0/C and 6.9 MPa showed that the presence of water, either added as such or generated in situ from an oxygenated compound increases the rate of hydrodenitrogenation on a NiMo/Al/sub 2/O/sub 3/ catalyst. The effect occurs in either the presence of or absence of H/sub 2/S. The degree of reversibility of activity when water is removed varies with conditions. Any remaining enhancement is removed by a standard resulfiding procedure that reduces the catalyst activity to the level it had before addition of water. The enhancement effect is much less than proportional to the water concentration, i.e., the first few kPa of water show the most noticeable effects. 3 references, 9 figures.

• Research Organization: Massachusetts Inst. of Tech., Cambridge (USA). Dept. of Chemical Engineering
• DOE Contract Number: FG22-83PC60798
• OSTI ID: 5070960
• Report Number(s): DOE/PC/60798-2; ON: DE84010552
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010403* -- Coal & Coal Products-- Hydrogenation-- (-1987)
AROMATICS
AZAARENES
AZINES
CARBONACEOUS MATERIALS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COAL
DENITRIFICATION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
HYDROGENATION
HYDROXY COMPOUNDS
MATERIALS
METALS
MOLYBDENUM
NICKEL
NITROGEN
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHENOL
PHENOLS
PYRIDINES
QUINOLINES
REMOVAL
STRUCTURAL MODELS
TRANSITION ELEMENTS
WATER