Catalysts for the hydrodenitrogenation of organic materials and process for the preparation of the catalysts
A process is described for the preparation of a multimetallic catalyst for the hydrodenitrogenation of an organic feedstock, which process comprises: (a) forming a precatalyst itself comprising: (1) a first metal compound selected from compounds of nickel, cobalt or mixtures thereof; (2) a second metal compound selected from compounds of chromium, molybdenum, tungsten, or mixtures thereof; and (3) an inorganic support; (b) heating the precatalyst of step (a) with a source of sulfide in a first non-oxidizing gas at a temperature and for a time effective to presulfide the precatalyst; (c) adding in a second non-oxidizing gas to the sulfided precatalyst of step (b) an organometallic transition metal moiety selected from compounds of iridium, rhodium, iron, ruthenium, tungsten or mixtures thereof for a time and at a temperature effective to chemically combine the metal components; and (d) optionally heating the chemically combined catalyst of step (b) in vacuum at a temperature and for a time effective to remove residual volatile organic materials. 12 figs.
- Research Organization:
- SRI International Inc
- DOE Contract Number:
- FG22-83PC60781; FG22-85PC80906
- Assignee:
- SRI International, Menlo Park, CA (United States)
- Patent Number(s):
- A; US 4716142
- Application Number:
- CNN: CHE82-19541; PPN: US 6-900447
- OSTI ID:
- 7004148
- Country of Publication:
- United States
- Language:
- English
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Catalytic hydrocracking, hydrodesulfurization, and/or hydrodenitrogenation of organic compounds employing promoted zinc titanate and a zeolite as the catalytic agent
Catalytic hydrocracking, hydrodesulfurization, and/or hydrodenitrogenation of organic compounds employing promoted zinc titanate and a zeolite as the catalytic agent
Related Subjects
400201* -- Chemical & Physicochemical Properties
CARBONACEOUS MATERIALS
CATALYSTS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHROMIUM COMPOUNDS
COBALT COMPOUNDS
DENITRIFICATION
HEAT TREATMENTS
HYDROGENATION
IRIDIUM COMPOUNDS
IRON COMPOUNDS
MATERIALS
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
REFRACTORY METAL COMPOUNDS
RHODIUM COMPOUNDS
RUTHENIUM COMPOUNDS
SULFIDATION
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS