Heavy oil conversion

Abstract

Abstract A PROCESS FOR OBTAINING INCREASED NORMALLY LIQUID HYDROCARBON YIELDS FROM COKING A HYDROCARBON FEED CONTAINING AT LEAST THREE PARTS PER MILLION METALS WHICH PROCESS COMPRISES: (A) CONTACTING THE FEED, AT ELEVATED TEMPERATURE AND PRESSURE AND IN THE PRESENCE OF ADDED HYDROGEN, WITH A HYDROTREATING CATALYST COMPRISING GROUP VI AND GROUP VIII MEATAL AND AN INORGANIC REFRACTORY BASE, AND HAVING AT LEAST 50 PERCENT OF ITS PORE VOLUME FROM PORES 100 ANGSTROMS OR LARGER IN PORE DIAMETER TO OBTAIN A HYDROTREATED FEEDSTOCK, AND (B) COKING AT LEAST A PORTION OF THE HYDROTREATED FEEDSTOCK AT A TEMPERATURE BETWEEN 700*F. AND 1100*F. TO OBTAIN SOLID COKE AND VAPORIZED NORMALLY LIQUID HYDROCARBONS. PREFERRED HYDROTREATING CATALYSTS FOR USE IN THE PROCESS ARE OBTAINED BY EXPANDING THE CATALYST DURING CATALYST PRODUCTION BY ADDING A HIGH MOLECULAR WEIGHT DETERGENT TO THE CATALYST HYDROGEL BEFORE THE HYDROGEL IS DRIED AND CALCINED. ALSO, IT IS PREFERRED TO USE A COMMON FRACTIONATION ZONE FOR BOTH THE HYDROTREATING STEP AND THE COKING STEP AND TO ELIMINATE VACUUM DISTILLATION AHEAD OF THE HYDROTREATING STEP.

Inventors

• 👤 Ronald R Roselius

Bibliographic Details