The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer like for instance the pyrolysis of waste plastics via the polymerization of dienes prior to further treatments.

The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer like for instance the pyrolysis of waste plastic via the polymerization of dienes prior to further treatments.

The present invention relates to an oligomeric product prepared from pyrolysis oil, being preferably a plastic pyrolysis oil, via polymerization being preferably a cationic polymerization.

The present technology provides a method that includes contacting a composition with a caustic solution to produce a caustic-treated composition; combining the caustic-treated composition with silica particles to produce a slurry; and removing the silica particles from the slurry to produce a treated composition; wherein the composition includes one or more of animal fats, animal oils, plant fats, plant oils, vegetable fats, vegetable oils, greases, and used cooking oil and the composition includes: at least about 10 wppm of total metals, at least about 8 wppm of phosphorus, at least about 10 wppm of chlorine, at least about 10 wppm of sulfur, at least about 20 wppm of nitrogen, at least about 5 wt. % of free fatty acids; and has an acid number from about 10 mg KOH/g to about 150 mg KOH/g, and the silica particles has a particle size from about 10 microns to about 50 microns, a BET surface area from about 200 m.sup.2/g to about 1000 m.sup.2/g.

The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer like for instance the pyrolysis of waste plastics via the polymerization of dienes prior to further treatments.

The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer like for instance the pyrolysis of waste plastics via the polymerization of dienes prior to further treatments.

The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer like for instance the pyrolysis of waste plastics via the polymerization of dienes prior to further treatments.

The disclosure relates to the purification and treatment of oil produced from the liquefaction of waste polymer like for instance the pyrolysis of waste plastics via the polymerization of dienes prior to further treatments.

A novel process for making steam cracker feedstocks from contaminated pyrolysis oil, e.g., derived from waste plastics. The process utilizes an alkali hydroxide hydrolysis to clean the pyrolysis oil. The clean pyrolysis oil is then sent to an isocracking section to prepare high quality steam cracker feedstock. Some products can be sent to a steam cracker as feedstocks, while others can be recycled back into the system to improve feedstock yield. This recycling can also be done for better heat management.

A novel process for making steam cracker feedstocks from contaminated pyrolysis oil, e.g., derived from waste plastics. The process utilizes an alkali hydroxide hydrolysis to clean the pyrolysis oil. The clean pyrolysis oil is then sent to an isocracking section to prepare high quality steam cracker feedstock. Some products can be sent to a steam cracker as feedstocks, while others can be recycled back into the system to improve feedstock yield. This recycling can also be done for better heat management.