Rate enhancement for catalytic upgrading coal naphthas. Quarterly progress report for period ending, September 1993

Technical Report · Fri Dec 31 04:00:00 EST 1993

DOI:https://doi.org/10.2172/10141086· OSTI ID:10141086

Davis, B H

The hydrotreatment of naphtha derived from Illinois {number_sign}6 coal has been carried out over unsupported transition metal sulfide catalysts of the second row of the Periodic Table. The catalysts prepared are similar to the catalysts prepared by Pecoraro and Chianelli (1981). The catalysts exhibit a volcano curve for the HDS of dibenzothiophene similar to that observed by Pecoraro and Chianelli (1981). The catalysts also exhibit similar volcano curves for the HDS, HDN and HDO of the total sulfur, nitrogen and oxygen heteroatoms present in coal-derived naphtha. Ruthenium sulfide is the most active catalyst for all three of these processes. The order of reactivity for HDS, HDN and HDO is Ru > Rh > Mo > Pd > Zr > Nb. The kinetics of total sulfur and nitrogen removal from the coal-derived naphtha are quite complex. The conversion versus residence time data do not fit simple zero or first order kinetics. The individual sulfur compounds present in naphtha exhibit considerable interconversion indicating that C-C bond breaking and hydrogenation of aromatic rings are involved during HDS. The individual nitrogen compounds present in naphtha show that anilines are intermediates in the HDN of nitrogen compounds.

• Research Organization: Kentucky Univ., Lexington, KY (United States). Center for Applied Energy Research
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-91PC91058
• OSTI ID: 10141086
• Report Number(s): DOE/PC/91058--T8; ON: DE94009697; BR: AA2560000
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402
010405
CATALYSTS
CATALYTIC EFFECTS
COAL LIQUIDS
COMPARATIVE EVALUATIONS
DENITRIFICATION
DESULFURIZATION
EXPERIMENTAL DATA
HYDROGENATION
HYDROGENATION AND LIQUEFACTION
MOLYBDENUM SULFIDES
NAPHTHA
NIOBIUM SULFIDES
PALLADIUM SULFIDES
PROGRESS REPORT
PURIFICATION AND UPGRADING
REFINING
RUTHENIUM SULFIDES
ZIRCONIUM SULFIDES