New hydroprocessing catalysts prepared from molecular complexes
- 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; TRN: IM9623%%456
- Resource Relation:
- Conference: Spring national meeting of the American Institute of Chemical Engineers (AIChE), Houston, TX (United States), 28 Mar - 1 Apr 1993; Other Information: PBD: 1994; Related Information: Is Part Of Catalytic hydroprocessing of petroleum and distillates; Oballa, M.C. [ed.] [Novacor Research and Technology Corp., Calgary, Alberta (Canada)]; Shih, S.S. [ed.] [Mobil Research and Development Corp., Paulsboro, NJ (United States)]; PB: 480 p.
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CATALYSTS
CHEMICAL PREPARATION
PERFORMANCE TESTING
PETROLEUM REFINERIES
MOLYBDENUM OXIDES
COBALT OXIDES
NICKEL OXIDES
ALUMINIUM OXIDES
SILICON OXIDES
CATALYST SUPPORTS
SULFIDATION
MOLYBDENUM SULFIDES
IRON SULFIDES
DENITRIFICATION
DESULFURIZATION
ORGANOMETALLIC COMPOUNDS
EXPERIMENTAL DATA
PRESSURE DEPENDENCE