Relations between coke deposition and activity of HDS catalysts. [Hydrodesulfurization (HDS)]
Coke deposition due to degradation of 1,3-butadiene at 400 degrees C was examined employing supported molybdate hydrocracking catalysts, with and without promoters and with and without presulfiding. Initial hydrodesulfurization activity behavior of the catalysts was also examined. Coke deposition was found to increase as a function of catalyst composition and the type of diluting gas (He or H/sub 2/). With oxide catalysts, such as MoO/sub 3/ and NiO-MoO/sub 3/, the deposition of coke on the non-impregnated support is not affected by the type of diluting gas. It was also found that the supported MoO/sub 3/ catalyst produced more coke than the support alone in either H/sub 2/ or He atmospheres at all deposition times. Coke formation on sulfide catalysts showed a similar behavior to that of the oxide catalysts. The quantity of coke, however, was significantly smaller in all cases except on the support. (JMT)
- Research Organization:
- Venezuelian Inst. of Scientific Investigations, Caracas
- OSTI ID:
- 5431753
- Report Number(s):
- CONF-820909-Vol.1
- Journal Information:
- Am. Chem. Soc., Div. Pet. Chem., Prepr.; (United States), Vol. 27:3; Conference: National meeting of the American Chemical Society, Kansas City, MO, USA, 12 Sep 1982
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effect of nickel on the acidity and hydrodesulfurization (HDS) activity of supported molybdate catalysts
Synthesis and catalytic properties of products obtained by sulfiding ternary oxide compounds of Ni, Mo, and Al in hydrogenation and hydrodesulfurization reactions
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COKE
DEPOSITION
HYDROCRACKING
CATALYSTS
PETROLEUM
DESULFURIZATION
BUTADIENE
HELIUM
HYDROGEN
MOLYBDENUM OXIDES
NICKEL OXIDES
SULFIDES
THERMAL DEGRADATION
CHALCOGENIDES
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DIENES
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASES
HYDROCARBONS
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLYENES
PYROLYSIS
RARE GASES
SULFUR COMPOUNDS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
020400* - Petroleum- Processing
400201 - Chemical & Physicochemical Properties