Dechlorination of mixed plastics pyrolysis oils using devolatilization extrusion and chloride scavengers

US10829696B2 · kind B2 · utility

Assignee

• SABIC GLOBAL TECHNOLOGIES B.V. · NL

Inventors

• Mohammad JAVEED · Bengaluru, IN
• Alexander Stanislaus · Kanchinakote, IN
• Abrar A. Hakeem · Elsloo, NL
• Girish KORIPELLY · Kanchinakote, IN
• Ravichander Narayanaswamy · Kanchinakote, IN
• Krishna Kumar Ramamurthy · Bengaluru, IN

Key dates

• Filing date: Jul 17, 2017
• Grant date: Nov 10, 2020
• Expiry date: Jul 17, 2037

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 dechlorination of a hydrocarbon stream and/or a hydrocarbon stream precursor comprising introducing the hydrocarbon stream and/or hydrocarbon stream precursor, a first zeolitic catalyst, and a stripping gas to a devolatilization extruder (DE) to produce an extruder effluent, wherein the hydrocarbon stream and/or hydrocarbon stream precursor comprises one or more chloride compounds in an amount of equal to or greater than about 10 ppm chloride, based on the total weight of the hydrocarbon stream and/or hydrocarbon stream precursor, and wherein the extruder effluent comprises one or more chloride compounds in an amount of less than the chloride amount in the hydrocarbon stream and/or hydrocarbon stream precursor.