INTEGRATED HYDROCRACKING AND DEWAXING OF HYDROCARBONS

摘要

AN INTEGRATED PROCESS FOR PRODUCING NAPHTHA FUEL, DIESEL FUEL AND/OR LUBRICANT BASE OILS FROM FEEDSTOCKS UNDER SOUR CONDITIONS IS PROVIDED. THE ABILITY TO PROCESS FEEDSTOCKS UNDER HIGHER SULFUR AND/OR NITROGEN CONDITIONS ALLOWS FOR REDUCED COST PROCESSING AND INCREASES THE FLEXIBILITY IN SELECTING A SUITABLE FEEDSTOCK. THE SOUR FEED CAN BE DELIVERED TO A CATALYTIC DEWAXING STEP WITHOUT ANY SEPARATION OF SULFUR AND NITROGEN CONTAMINANTS, OR A HIGH PRESSURE SEPARATION CAN BE USED TO PARTIALLY ELIMINATE CONTAMINANTS. THE INTEGRATED PROCESS INCLUDES AN INITIAL HYDROTREATMENT, HYDROCRACKING, CATALYTIC DEWAXING OF THE HYDROCRACKING EFFLUENT, AND AN OPTION FINAL HYDROTREATMENT.