Low severity upgrading of F-T waxes with solid superacids. Quarterly report, September 1--November 30, 1994

Technical Report · Sat Dec 31 04:00:00 EST 1994

OSTI ID:10117372

Tierney, J W; Wender, I

In this quarter the authors studied the isomerization and hydrocracking of n-hexadecane using Pt/ZrO{sub 2}/SO{sub 4} three-way gel catalysts prepared under CO{sub 2} supercritical conditions. Two different platinum-containing compounds were used as platinum sources. It appeared that the Pt/ZrO{sub 2}/SO{sub 4} catalyst derived from H{sub 2}PtCl{sub 6}H{sub 2}O gave better conversion for n-Cl{sub 16} than the catalyst prepared from platinum acetylacetonate. The activities of Pt and Ni promoted ZrO{sub 2}/SO{sub 4} catalysts were compared. At 300 C and 500 psig of H{sub 2} (700--730 psig during the reaction), about a 45 wt% conversion of n-hexadecane was obtained using NiZrO{sub 2}/SO{sub 4} catalyst; this catalyst gave only a 7 wt% conversion for hydrocracking of n-hexadecane at 160 C and 350 psig of H{sub 2} (220--420 psig during the reaction). Attempts were made to react n-heptane with alcohol to produce C{sub 4}-C{sub 9} ethers, good gasoline additives. Large amounts of dimethyl ether are formed in these reactions; the acidity of solid superacids plays a key role in the formation of desirable ethers (C{sub 4}-C{sub 9}).

• Research Organization: Pittsburgh Univ., PA (United States). Dept. of Chemical and Petroleum Engineering
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-91PC91304
• OSTI ID: 10117372
• Report Number(s): DOE/PC/91304--T12; ON: DE95006937; BR: AA1525050
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
100200
CATALYST SUPPORTS
CATALYTIC EFFECTS
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
ETHANOL
EXPERIMENTAL DATA
FISCHER-TROPSCH SYNTHESIS
FUEL ADDITIVES
HEPTANE
HEXADECANE
HYDROCRACKING
ISOMERIZATION
NICKEL
PLATINUM
PRODUCTION
PROGRESS REPORT
SYNTHESIS
ZIRCONIUM OXIDES
ZIRCONIUM SULFATES