Effect of hydrotreating conditions on hydrocracking of a coal derived liquid

Journal Article · Tue Dec 31 04:00:00 EST 1996 · Preprints of Papers, American Chemical Society, Division of Fuel Chemistry

OSTI ID:430311

Zhan, X; Joo, H S; Guin, J A ^[1]

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1. Auburn Univ., AL (United States)

Several coal derived liquids produced using different hydrotreating severities were hydrocracked to naphtha over a presulfided commercial hydrocracking catalyst. The feeds had similar boiling range and molecular type distribution but different nitrogen content. Feed nitrogen content had a significant effect on the hydrocracking activity, activity maintenance, and selectivity. Rapid deactivation was observed for feeds with nitrogen content higher than 50 ppm. For the feed with 50 ppm N, the gas oil (+205{degrees}C) conversion to naphtha decreased observably in the initial 4 hours. An initial catalytic activity study indicated that first order kinetics can be used to describe the gas oil conversion to naphtha. The initial hydrocracking rate of gas oil was approximately inversely proportional to the feed nitrogen content. Related model compound studies showed that the hydrocracking of cumene and hexadecane was very dependent on feed N content.

• OSTI ID: 430311
• Report Number(s): CONF-960376--
• Journal Information: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry, Journal Name: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry Journal Issue: 2 Vol. 41; ISSN 0569-3772; ISSN ACFPAI
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CATALYTIC EFFECTS
COAL LIQUIDS
DEACTIVATION
HEXADECANE
HYDROCRACKING
MOLYBDENUM
NAPHTHA
NICKEL
ZEOLITES