ABSTRACT
This chapter considers a variety of refining technologies that allow the refiner to obtain a larger yield of transportation fuels out of each barrel of crude oil. Shengli is a low API gravity, low-sulfur, high-nitrogen, paraffinic crude oil. When processing heavy crudes, the principal concern is the appropriate step in bottoms upgrading. Coking is a modern version of an old process for thermal conversion of residual oils to naphtha and distillates. For processing crudes with very high metals, the combination of the Demex extraction process and the RCD Unibon hydrotreating process can be a more economic alternative than direct processing by the RCD Unibon process alone. The reduced crude oil conversion process throughput is increased from 19,600 b/d in the Base Case to 34,500 b/d. Shengli crude oil has a very high yield of resid, a high nitrogen content, and high nickel-to-vanadium ratio.
