Visbreaking is a well-established noncatalytic thermal process that converts atmospheric or vacuum residues to gas, naphtha, distillates, and tar. Visbreaking reduces the quantity of cutter stock ...
Olefin content is generally small for straight-run products, but for stocks derived from secondary/thermal processes such as coking, visbreaking, or resid hydrocracking (H-OIL [*] etc.), it can ...