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公开(公告)号：US20230392088A1
公开(公告)日：2023-12-07
申请号：US18248904
申请日：2021-11-12
Applicant: SHELL OIL COMPANY
Inventor： Jean-Paul Andre Marie Joseph Ghislain LANGE , Guus VAN ROSSUM , Timothé OLTHOF , Kai FISCHER , Hendrik STICHTER , Jose Atilio QUEVEDO ENRIQUEZ , Luis Alberto GRAU LISNIER
CPC classification number: C10G67/0445 , C10G2300/202 , C10G67/06
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) contacting said liquid stream with a washing solvent thereby removing heteroatom containing organic compounds; b) liquid-liquid extraction of the washed stream with an extraction solvent; wherein heteroatom containing organic compounds, optional aromatic hydrocarbons and optional other contaminants are removed from said liquid stream and/or from a washed stream resulting from step a) and/or from a raffinate stream resulting from step b), 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.
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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
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.
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公开(公告)号：US20220388933A1
公开(公告)日：2022-12-08
申请号：US17776268
申请日：2020-12-16
Applicant: SHELL OIL COMPANY
Inventor： Evert VAN DER HEIDE , Pieter HUIZENGA , Kai FISCHER , Carmelo PEREZ GOLF , David PINILLA GARCIA
IPC: C07C29/84
Abstract: A process for the production of a high purity first diol from a product stream comprising two or more C2 to C7 diols, said process comprising the steps of: (i) providing the product stream to a first distillation column; (ii) providing an extractant selected from the group of C3 to C6 sugar alcohols and mixtures thereof to the first distillation column; (iii) operating the first distillation column to obtain a first bottoms stream comprising at least a first diol and the extractant; (iv) providing the first bottoms stream to a second distillation column operating to obtain a second top stream comprising the first diol and diols with atmospheric boiling points at least 10° C. higher than the first diol, and (v) providing the second top stream to a third distillation column to obtain a third top stream comprising the first diol; wherein the product stream comprises 0.1 to 10 wt % of diols with atmospheric boiling points at least 10° C. higher than the first diol, calculated upon the total weight of C2 to C7 diols in the product stream.
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公开(公告)号：US20240034942A1
公开(公告)日：2024-02-01
申请号：US18248758
申请日：2021-11-12
Applicant: SHELL OIL COMPANY
Inventor： Jean-Paul Andre Marie Joseph Ghislain LANGE , Guus VAN ROSSUM , Timothé OLTHOF , Kai FISCHER , Hendrik STICHTER , Jose QUEVEDO ENRIQUEZ
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) contacting said liquid stream with a stream having a pH above 7 and comprising a washing solvent, preceded and/or followed by contacting with a stream having a pH below 7 and comprising a washing solvent; b) liquid-liquid extraction of the washed stream with an extraction solvent. 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.
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