公开(公告)号：US20230374398A1

公开(公告)日：2023-11-23

申请号：US18246755

申请日：2021-10-12

Applicant: SHELL OIL COMPANY

Inventor： Jean-Paul Andre Marie Joseph Ghislain LANGE ,  Guus VAN ROSSUM ,  Willem DERKS ,  Kai FISCHER ,  Timothe OLTHOF ,  Johannes Pieter HAAN

IPC: C10G53/04 ,  C10G1/10 ,  C10G1/02 ,  C10G1/00

CPC classification number: C10G53/04 ,  C10G1/10 ,  C10G1/02 ,  C10G1/002 ,  C10G2300/1003

Abstract: The invention relates to a process for the recovery of aliphatic hydrocarbons from a liquid stream comprising aliphatic hydrocarbons, heteroatom containing organic compounds and optionally aromatic hydrocarbons, involving a) liquid-liquid extraction of said liquid stream with an extraction solvent; b) mixing the extract stream, comprising extraction solvent, heteroatom containing organic compounds and optionally aromatic hydrocarbons, with a demixing solvent to remove part of the heteroatom containing organic compounds and optional aromatic hydrocarbons; and c) separation of the remaining stream into a demixing solvent stream and an extraction solvent stream, wherein before and/or after step c) additional heteroatom containing organic compounds and optional aromatic hydrocarbons are removed from that remaining stream and/or from a stream resulting from step c), respectively, by contacting the latter stream (s) with a sorption agent. Further, the invention relates to a process for the recovery of aliphatic hydrocarbons from plastics comprising the above-mentioned process; and to a process for steam cracking a hydrocarbon feed comprising aliphatic hydrocarbons as recovered in one of the above-mentioned processes.