The preparation of alumina supports and their applications on RDS hydrodemetalation reaction

This invention describes the preparation of uni- and bi- modal alumina supports and catalysts with specific pore size distributions and volume ratios by using alumina powder, the mixture of specific structures of short-chained wrinkled sheets, long-chained wrinkled sheets, and rhombohedral crystalli...

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Hauptverfasser:	CHEN, SHIAN-HUNG, HUANG, SHIOU-FANG, TSAI, KUEN-RUNG, GU, JIA-SUNG, LIU, LI-REN
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	This invention describes the preparation of uni- and bi- modal alumina supports and catalysts with specific pore size distributions and volume ratios by using alumina powder, the mixture of specific structures of short-chained wrinkled sheets, long-chained wrinkled sheets, and rhombohedral crystallites. These alumina supports and catalysts were applied to RDS demetalation (HDM) reaction. The unimodal catalyst has 60% to 80% of the total pore volume in an average pore diameter of ±20 . The bimodal catalyst has over 70% of the total pore volume in an average pore diameter of ±100 , and the volume percentage of each 10 was less than 10%. This invention also indicates that the combination of uni- and bi- modal alumina catalysts possessed excellent demetalation activities for different kinds of feedstock of atmosphere residue of 60% Arabian Heavy and 40% Arabian Light, and atmosphere and vacuum residue of Arabian Light.