Demetallization catalyst and process for metals- containing...

Details Demetallization catalyst and process for metals- containing... Demetallization catalyst and process for metals- containing...

B - Operations, Transporting

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196/228, 252/52.

B01J 35/10 (2006.01) B01J 23/85 (2006.01) C10G 45/04 (2006.01) C10G 45/20 (2006.01) C10G 47/30 (2006.01) C10G 49/02 (2006.01)

Patent

CA 1217756

ABSTRACT OF THE DISCLOSURE A particulate synthetic catalyst material composed of sub- stantially aluminum oxide promoted with 0.5-10 W % total metal and having total pore volume of 0.350-0.500 cc/gm for use in demetallization and hydroconversion processes for metals-containing hydrocarbon feedstocks. The catalyst material is preferably spherical shaped and provides a narrow differential size range having a particle equivalent diameter ratio range for larger to smaller particles of about 1.2-2.0, and a preferred nominal 12-18 mesh (U.S. Sieve Series) particle size range. The catalyst can be advantageously used in an ebullated bed reactor in a hydro- demetallization process for hydrocarbon feedstocks containing high metals concentration at reaction conditions of 780-850°F tempera- ture and 1000-3000 psig hydrogen partial pressure. Use of such synthetic catalyst results in improved reactor fluidization opera- tions and low catalyst loss by attrition and carryover of fines from the reactor, and achieves improved results of 60-70 W % hydro- demetallization and 50-70 V % hydroconcersion of the 975°F+ fraction of the feed material to lower boiling hydrocarbon pro- ducts in a single stage operation.

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