The API/FW Solvent Deasphalting process (SDA) separates residue by molecular weight, instead of by boiling point to produces a low-contaminant deasphalted oil that is rich in paraffinic-type molecules and a high viscosity residue byproduct (pitch).
The SDA process efficiently separates vacuum residue into high-quality conventional vacuum gas oil conversion unit feedstock from the lowest quality components in vacuum residue.
The API/FW SDA process utilizes the most efficient extraction and solvent recovery systems available resulting in maximizing DAO quality and minimizing costs.