UPGRADED EBULLATED BED REACTOR WITH INCREASED PRODUCTION RATE OF CONVERTED PRODUCTS

摘要

An ebullated bed hydroprocessing system is upgraded using a dual catalyst system that includes a heterogeneous catalyst and dispersed metal sulfide particles to increase rate of production of converted products. The rate of production is achieved by increasing reactor severity, including increasing the operating temperature and at least one of throughput or conversion. The dual catalyst system permits increased reactor severity and provides increased production of converted products without a significant increase in equipment fouling and/or sediment production. In some cases, the rate of production of conversion products can be achieved while decreasing equipment fouling and/or sediment production.

主权项

1. A method of upgrading an ebullated bed hydroprocessing system that includes one or more ebullated bed reactors to increase rate of production of converted products from heavy oil, comprising:
operating an ebullated bed reactor using a heterogeneous catalyst to hydroprocess heavy oil at initial conditions, including an initial reactor severity and an initial rate of production of converted products; thereafter upgrading the ebullated bed reactor to operate using a dual catalyst system comprised of dispersed metal sulfide catalyst particles and heterogeneous catalyst; and operating the upgraded ebullated bed reactor using the dual catalyst system at higher reactor severity and increased rate of production of converted products than when operating the ebullated bed reactor at the initial conditions.