Hydrodesulfurization reactions of atmospheric gas oil over CoMo/alumina-aluminum borate catalysts

Journal Article · Sun Aug 01 00:00:00 EDT 1993 · Industrial and Engineering Chemistry Research; (United States)

OSTI ID:5897338

Li, Chiuping; Wu, Jungchung ^[1]; Chen, Yuwen; Yang, Shienjen ^[2]

---

1. Chinese Petroleum Corp., Chia-Yi, (Taiwan, Province of China). Refining and Manufacturing Research Center
2. National Central Univ., Chung-Li, (Taiwan, Province of China). Dept. of Chemical Engineering

A precipitation technique at constant pH value was used to prepare a series of alumina-aluminum borates (AABs) with various Al/B atomic ratios. These materials were used as the supports of Co-Mo catalysts. Hydrodesulfurization (HDS) of Kuwait atmospheric gas (AGO) oil was carried out over these presulfided catalysts in a bench-scale trickle bed reactor at 400 psi and 340 C. All CoMo/AAB catalysts are much more active than the conventional CoMo/Al[sub 2]O[sub 3] catalyst on HDS reactions. A correlation exists between the acidity and the HDS activity of the catalysts. The high activities of the CoMo/AAB catalysts can be rationalized on the presence of boron. On one hand, it can increase the metal dispersions and hydrogenation capabilities. On the other hand, it can enhance the acidities and cracking abilities of the catalysts. The desulfurization data can be fitted with a pseudo-second-order rate equation. The activation energy for desulfurization is found to be 26 kcal/mol.

• OSTI ID: 5897338
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Vol. 32:8; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
CATALYST SUPPORTS
PERFORMANCE
COBALT
CATALYTIC EFFECTS
GAS OILS
DESULFURIZATION
MOLYBDENUM
ACTIVATION ENERGY
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BORATES
CHEMICAL PREPARATION
EXPERIMENTAL DATA
HYDROGENATION
KINETIC EQUATIONS
PH VALUE
BORON COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DISTILLATES
ELEMENTS
ENERGY
ENERGY SOURCES
EQUATIONS
FOSSIL FUELS
FUELS
INFORMATION
METALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
SYNTHESIS
TRANSITION ELEMENTS
020400* - Petroleum- Processing