With demand for diesel growing in key world markets and ever-more stringent product specifications, refiners are evaluating the technology options for the production of ultra-low-sulfur diesel (ULSD). Hydrocracking, an established and reliable method for transforming low-value heavy oil fractions into products with a higher value, is rapidly emerging as the principal conversion technology to maximize diesel yield.
By applying Shell Group (“Shell”) hydrocracking expertise gained from more than 35 years as a worldwide owner and operator, we offer cutting-edge technology licenses for new units and revamps. These technologies help refiners around the world to achieve the products and the performance they need in today’s marketplace and to meet ever-more stringent fuel-quality regulations.
Full Conversion Hydrocracking
We offer both single- and two-stage designs for full conversion hydrocracking to maximize diesel production. Each design is tailored to the type of feedstock, the capacity of the unit and the specific processing objectives to help optimize both capital and operating costs.
The two-stage hydrocracker process configuration is best suited for large units and for processing difficult, high nitrogen feedstocks, and offers complete conversion of feedstock through two distinct reactor stages with intermediate fractionation. Several other innovative process configurations are also available, including a single-stage design (once-through and recycle mode) to produce base oils or FCC or ethylene cracker feedstocks.
The hydrocracker technology is flexible enough to process a wide range of feed qualities of diverse origin at different conversion levels while producing on-specification ULSD.