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Control of catalytic hydrotreating selectivity with ammonia

Technical Report ·
DOI:https://doi.org/10.2172/6025918· OSTI ID:6025918

The hydrogenation of phenanthrene in the presence of 24 kPa of ammonia was studied during the hydrodenitrogenation (HDN) of quinoline on a sulfided NiMo/Al{sub 2}O{sub 3} catalyst at 360{degrees}C, 6.9 MPa total H{sub 2} pressure in a vapor phase tubular reactor. Ammonia, through competitive adsorption, reduced the formation of phenanthrene hydrogenated products and the hydrocracking of 9,10-dihydrophenanthrene to biphenyl. The effects occur largely when the HDN reactions are substantially completed. 6 refs., 8 figs., 1 tab.

Research Organization:
Massachusetts Inst. of Tech., Cambridge, MA (United States)
Sponsoring Organization:
DOE; USDOE, Washington, DC (United States)
DOE Contract Number:
FG22-89PC89775
OSTI ID:
6025918
Report Number(s):
DOE/PC/89775-6; ON: DE92003082
Country of Publication:
United States
Language:
English