New developments in hydroprocessing catalysis

Conference · Wed Apr 01 04:00:00 EST 1987 · American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA)

OSTI ID:5086651

Passaretti, J D; Ho, T C ^[1]

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1. Exxon Research and Engineering Co., Annandale, NJ (USA)

Fundamental studies have suggested that the efficiency of hydroprocessing catalytic sites may be improved by enhancing the electronic and structural interactions between molybdenum sulfide and other transition metals used as promoters. Accordingly, the authors have synthesized a self-promoted catalyst precursor system by structurally incorporating promoters into amine thiomolybdates and amine molybdates. The resulting complexes, metal amine thiomolybdates, (MAT), and metal amine molybdates, (MAM), upon thermal decomposition of sulfiding yield metal sulfide catalysts having remarkable activity and selectivity for hydrodenitrogenation (HDN) and hydrodesulfurization (HDS). This was observed in tests with a mid-distillate feed. For example, from the MAT precursor, the chromium and nickel co-promoted molybdenum sulfide catalyst shows a seven-fold increase in HDN activity along with a two-fold improvement in HDS activity, relative to conventional catalysts of a much higher surface area. The chromium-molybdenum sulfide catalyst is extremely selective toward HDN; it provides an HDN-to-HDS activity ratio ten times higher than that of conventional HDN-selective catalysts. Similarly, the nickel and manganese co-promoted catalyst from the MAM precursor is twice as active for HDN than the commercial state of the art catalyst for heavy feeds.

• OSTI ID: 5086651
• Report Number(s): CONF-8704347--
• Conference Information: Journal Name: American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA) Journal Volume: 32:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
AMINES
CATALYSIS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHROMIUM
DATA
DENITRIFICATION
DESULFURIZATION
DISTILLATES
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
HYDROGENATION
INFORMATION
MANGANESE
METALS
MOLYBDATES
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
NICKEL
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PROMOTERS
REFRACTORY METAL COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
THIOLS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS