Low severity upgrading of F-T waxes with solid superacids

Technical Report · Mon Jul 20 04:00:00 EDT 1992

DOI:https://doi.org/10.2172/7249679· OSTI ID:7249679

Wender, I; Tierney, J W

We have previously reported the isomerization and hydrocracking of n-hexadecane and a n-C{sub 32} straight chain paraffin with a Pt/ZrO{sub 2}/SO{sub 4} catalyst at 170{degrees}C and 350 psig of hydrogen. This study has now been extended to the treatment of a Fisher-Tropsch wax with a carbon number range from C{sub 55}-C{sub 62}. The results reported in Table 1 show that the Pt/ZrO{sub 2}/SO{sub 4} catalyst is active for the isomerization and hydrocracking of this substrate. At an 88.6 wt% conversion level, an 86.1% selectivity to isoparaffins was achieved. The products consisted mainly of C{sub 4}-C{sub 9} and C{sub 10}-C{sub 14} fractions, suitable as gasoline and diesel fuels. A feed/catalyst ratio of 6:1 was used; there was no evidence of catalytic deactivation. The melted wax is viscous and there was a decrease in conversion with time, indicating that diffusion might be a limitation for chains of very high molecular weight.

• Research Organization: Pittsburgh Univ., PA (United States). Dept. of Chemical and Petroleum Engineering
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-91PC91304
• OSTI ID: 7249679
• Report Number(s): DOE/PC/91304-T2; ON: DE92040662
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010408* -- Coal
Lignite
& Peat-- C1 Processes-- (1987-)
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COAL LIQUEFACTION
CRACKING
DATA
DECOMPOSITION
DOCUMENT TYPES
ELEMENTS
EXPERIMENTAL DATA
FISCHER-TROPSCH SYNTHESIS
HYDROCRACKING
INFORMATION
ISOMERIZATION
LIQUEFACTION
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
PROCESSING
PROGRESS REPORT
PYROLYSIS
REFINING
SASOL PROCESS
SPECIFICITY
SULFATION
SYNTHESIS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WAXES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES