公开(公告)号：US20230374401A1

公开(公告)日：2023-11-23

申请号：US18247138

申请日：2021-10-12

Applicant: SHELL OIL COMPANY

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

IPC: C10G67/04 ,  C10G67/06

CPC classification number: C10G67/0445 ,  C10G67/06 ,  C10G2300/202 ,  C10G2300/4081

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, wherein before and/or after step a) heteroatom containing organic compounds, optional aromatic hydrocarbons and optional other contaminants are removed from said liquid stream and/or from a raffinate stream resulting from step a), 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.

公开(公告)号：US20170298035A1

公开(公告)日：2017-10-19

申请号：US15515609

申请日：2015-09-29

Applicant: SHELL OIL COMPANY ,  Shell International Research Maatschappij B.V.

Inventor： Timothe Johannes OLTHOF

IPC: C07D301/32 ,  B01D3/14 ,  B01D3/00

CPC classification number: C07D301/32 ,  B01D3/009 ,  B01D3/143 ,  Y02P20/127

Abstract: A process for recovering an ethylene oxide (EO) enriched product stream from fat absorbent (FA) comprising water, EO, and acetaldehyde. The process comprises passing a feed of FA from a loopgas EO absorber to a multi-stage countercurrent distillation zone, the feed of FA having a concentration of EO in the range of from about 1 to about 15 wt % upon entering the distillation zone; and obtaining from the distillation zone an acetaldehyde enriched stream, a lean absorbent (LA) stream, a vapour stream enriched in light ends, a glycol enriched bottoms stream and an EO enriched product stream. Suitable apparatus is also disclosed.