VISBREAKING PROCESS USING PLASTICS AS CO-FEED

摘要

A visbreaking process for the conjoint disposal of polyolefin plastic materials and production of fuel oil basestock is disclosed that comprises co-feeding a feedstream comprising between 0.01 and 5 weight percent of plastic materials and a heavy petroleum feedstock into a visbreaking zone under high severity visbreaking conditions. As a result, the visbroken product contains an enhanced yield of gas oil fraction of lower viscosity plus a reduced yield of carbonaceous sediment and bottoms fraction of substantially lower viscosity.