Process for hydroprocessing heavy hydrocarbon feedstocks
Abstract
Abstract THE PROCESS COMPRISES CONTACTING THE FEEDSTOCK IN A FIRST REACTION ZONE WITH A FIRST CATALYST IN THE PRESENCE OF HYDROGEN AND UNDER HYDROPROCESSING CONDITIONS TO PRODUCE A FIRST EFFLUENT AND CONTACTING SAID FIRST EFFLUENT IN A SECOND REACTION ZONE WITH A SECOND CATALYST IN THE PRESENCE OF HYDROGEN AND UNDER HYDROPROCESSING CONDITIONS. THE FIRST CATALYST COMPRISES A MEMBER SELECTED FROM THE GROUP CONSISTING OF A METAL OF GROUP VI-A AND A METAL OF GROUP VIII, OXIDES OF SAID METALS, SULFIDES OF SAID METALS, AND MIXTURES, THEREOF ON A SOLID CATALYTIC SUPPORT COMPRISING AN OXIDE OF ZINC OXIDE AND CATALYSTICALLY ACTIVE ALUMINA AND HAS AN AVERAGE PORE DIAMETER OF ABOVE 50 A. TO ABOUT 100 A. THE SECOND CATALYST COMPRISES A HYDROGENATION COMPONENT AND A SOLID NON-ACIDIC OR WEAKLY-ACIDIC SUPPORT AND HAS AN AVERAGE PORE DIAMETER THAT IS GREATER THAN THE AVERAGE PORE DIAMETER OF THE FIRST CATALYST. FEEDSTOCKS MAY BE SELECTED FROM THE GROUP CONSISTING OF PETROLEUM HYDROCARBON, RESIDUA, SHALE OIL, LIQUIFIED COAL, OIL FROM TAR SANDS, AND COMBINATIONS THEREOF.
Inventors
- 👤 A Hensley
Bibliographic Details
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