New hydroprocessing catalysts prepared from molecular complexes

Book · Sat Dec 31 04:00:00 EST 1994

OSTI ID:231146

Ho, T C ^[1]

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1. Exxon Research and Engineering Co., Annandale, NJ (United States). Corporate Research Labs.

Current commercial hydroprocessing catalysts are transition metal sulfides (TMS) based on Group 8 and 11 metals. They are prepared by dispersing MoO{sub 3} and a promoter metal oxide, either CoO or NiO, on {gamma}-Al{sub 2}O{sub 3} or SiO{sub 2}-modified Al{sub 2}O{sub 3}. This is followed by sulfiding with a sulfur-bearing stream such as H{sub 2}S at high temperatures. The thus formed MoS{sub 2} crystallites are the backbone of the working catalysts. A potentially fruitful approach to new catalysts would be to molecularly incorporate promoter metals into the structure of MoS{sub 2} edge planes. As a first step, it would seem reasonable to exploit the use of heterometallic metal sulfur complexes as hydroprocessing catalyst precursors. The authors have developed several families of new catalysts along this line. In this paper the authors restrict themselves to the metal amine thiomolybdate-derived catalysts. Specifically, they give an overview of the performance of the bulk (unsupported) FeMo sulfide prepared from MAT. This low-surface-area catalyst shows a high HDN-to-HDS volumetric activity ratio and is also active for HDA. While most of the results are taken from their previous publications, some new results are reported here.

• OSTI ID: 231146
• Report Number(s): CONF-930364--; ISBN 0-8247-9255-6
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
ALUMINIUM OXIDES
CATALYST SUPPORTS
CATALYSTS
CHEMICAL PREPARATION
COBALT OXIDES
DENITRIFICATION
DESULFURIZATION
EXPERIMENTAL DATA
IRON SULFIDES
MOLYBDENUM OXIDES
MOLYBDENUM SULFIDES
NICKEL OXIDES
ORGANOMETALLIC COMPOUNDS
PERFORMANCE TESTING
PETROLEUM REFINERIES
PRESSURE DEPENDENCE
SILICON OXIDES
SULFIDATION