Hydrotreating high-nitrogen feedstocks with hydrodenitrogenation and hydrocracking catalyst

Abstract

Abstract A PROCESS FOR HYDROCRACKING AND DENITROGENATION OF HEAVY OILS TO FORM IMPROVED PRODUCTS, E.G., MIDDLE DISTILLATES, AND A CATALYST FOR USE IN THE PROCESS ARE DISCLOSED. THE CATALYST COMPRISES A COMPOSITE SUPPORT CONTAINING A TOTAL OF ABOUT 30% TO ABOUT 70% BY WEIGHT OF SILICA AND ABOUT 70% TO ABOUT 30% BY WEIGHT OF ALUMINA, FORMED FROM A COMBINATION OF SILICA-ALUMINA AND ALUMINA DERIVED FROM HYDROUS ALUMINA SELECTED FROM THE GROUP CONSISTING OF BOEHMITE, AND MIXTURES OF BOREHMITE AND AMORPHOUS HYDROUS ALUMINA. THE CATALYST CONTAINS CATALYTICALLY-EFFECTIVE AMOUNTS OF A GROUP VIB AND/OR GROUP VIII METAL. IN A TYPICAL EXAMPLE, A DISTILLATE HEAVY MINERAL OIL HAVING AN END BOILING POINT UP TO ABOUT 1100*F. AND CONTAINING FROM ABOUT 500 P.P.M. TO 5000 P.P.M. OF NITROGEN IS CONTRACTED WITH HYDROGEN OVER THE CATALYST AT A TEMPERATURE OF ABOUT 650*F. TO 900*F., A PRESSURE OF ABOUT 500 P.S.I. TO 5000 P.S.I., A WEIGHT HOURLY SPACE VELOCITY OF ABOUT 0.5 TO 4 AND A HYDROGEN FLOW RATE OF FROM ABOUT 3000 TO 30,000 STANDARD CUBIC FEET OF HYDROGEN PER BARREL OF OIL TO PRODUCE IMPROVED PRODUCTS.

Inventors

• 👤 J Gallagher
• 👤 J Mooi

Bibliographic Details