Purification of waste plastic based oil with a high temperature hydroprocessing

US12371626B2 · kind B2 · utility

Assignee

• TotalEnergies One Tech Belgium · BE

Inventors

• Cindy Adam · Wierde, BE
• Delphine Minoux · Nivelles, BE
• Walter Vermeiren · Houthalen-Helchteren, BE
• Sébastien Leplat · Honfleur, FR
• Emmanuel Van Loock · Les Bons Villers, BE
• Christophe Breton · Honfleur, FR

Key dates

• Filing date: Apr 6, 2021
• Grant date: Jul 29, 2025
• Expiry date: Apr 18, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/62
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for the purification of a hydrocarbon stream including: (a) Providing a hydrocarbon stream having a diene value of at least 1.0 and a bromine number of at least 5 gBr2/100g and containing pyrolysis plastic oil; (b) Optionally contact the hydrocarbon stream obtained in step (a) with a silica gel, clays, alkaline or alkaline earth metal oxide, iron oxide, ion exchange resins, active carbon, active aluminum oxide, molecular sieves, alkaline oxide and/or porous supports and silica gel, or any mixture thereof, (c) Heating the stream obtained in step a) or b) followed by a mixing of the heated stream with a second diluent heated at a temperature of at least 300° C. preferably at least 330° C.; (d) performing an hydroprocessing step at a temperature of at least 250° C. in the presence of H2; and (e) recovering a purified hydrocarbon stream.