公开(公告)号：US11920094B2

公开(公告)日：2024-03-05

申请号：US16467294

申请日：2017-12-07

Applicant: SHELL OIL COMPANY

Inventor： Willem Derks

IPC: C10G1/10 ,  C10G1/00 ,  C10G21/14 ,  C10G21/16 ,  C10G21/20 ,  C10G21/27 ,  C10G55/04 ,  C10G75/00

CPC classification number: C10G55/04 ,  C10G1/002 ,  C10G1/10 ,  C10G21/14 ,  C10G21/16 ,  C10G21/20 ,  C10G21/27 ,  C10G75/00 ,  C10G2300/1003 ,  C10G2300/202 ,  C10G2300/308

Abstract: The invention provides a method for pretreating a hydrocarbon steam cracker feed, comprising contacting the feed with a solvent to produce a pretreated feed having a reduced content of fouling components that cause fouling in the preheat, convection and radiant sections of the steam cracker and a rich solvent having an increased content of fouling components. The invention further provides a method for steam cracking hydrocarbons comprising: a) feeding a hydrocarbon steam cracker feed to the process; b) pretreating the feed by contacting the feed with a solvent to produce a pretreated feed having a reduced content of fouling components that cause fouling in the steam cracker and a rich solvent having an increased content of fouling components; c) heating the pretreated feed; and d) passing the pretreated feed through a steam cracker under cracking conditions to produce cracked products.

公开(公告)号：US11891574B2

公开(公告)日：2024-02-06

申请号：US17441380

申请日：2020-04-14

Applicant: SHELL OIL COMPANY

Inventor： Jean-Paul Andre Marie Joseph Ghislain Lange ,  Luis Alberto Grau Lisnier ,  Willem Derks ,  Kai Jürgen Fischer

IPC: C10G1/00 ,  C10G21/02 ,  C10G55/04 ,  C10G21/00 ,  C10G1/10

CPC classification number: C10G1/002 ,  C10G21/006 ,  C10G21/02 ,  C10G55/04 ,  C10G1/10

Abstract: The invention relates to a process for the recovery of aliphatic hydrocarbons from a liquid hydrocarbon feedstock stream, which comprises aliphatic hydrocarbons and additionally comprises aromatic hydrocarbons and/or polar components, said process comprising the steps of: feeding the liquid hydrocarbon feedstock stream to a first column; feeding a first solvent stream which comprises an organic solvent to the first column at a position which is higher than the position at which the liquid hydrocarbon feedstock stream is fed; contacting at least a portion of the liquid hydrocarbon feedstock stream with at least a portion of the first solvent stream; and recovering at least a portion of the aliphatic hydrocarbons by liquid-liquid extraction of aromatic hydrocarbons and/or polar components with organic solvent, resulting in a stream comprising recovered aliphatic hydrocarbons and optionally organic solvent and a bottom stream from the first column comprising organic solvent and aromatic hydrocarbons and/or polar components.