AM-94-25 Hyvahl-Solvahl - Key Processes For Upgrading of Residues

Description:

Increasingly severe restrictions for sulfur in gasoline as well as the need to upgrade heavier crudes, provides for increasing interest in FCC pretreatment of residues. Direct hydrotreating of atmospheric topped residue for resid FCC conversion brings gasoline sulfur levels into compliance under many feed situations considered, improves gasoline yields and reduces the amount of SOx to be removed from fuel gases. A commercial atmospheric residue treater based on the HYVAHL-I@ process has begun operation at the Total Petroleum, Inc., refinery in Ardmore, Oklahoma. For vacuum topped crudes, a combination of the HYVAHL-F@ process and SOLVAHL@, a solvent deasphalting technology, produce products meeting the required specifi-cations with improved yields of lighter products. The processes, HYVAHL-F@ and SOLVAHLB, are discussed as well as the new HYVAHL-F@ plant in Oklahoma.