公开(公告)号：US11319498B2

公开(公告)日：2022-05-03

申请号：US17299108

申请日：2019-12-03

申请人： SABIC Global Technologies B.V. ,  SAUDI ARABIAN OIL COMPANY

发明人： Nicolas Goyheneix ,  Hatem Belfadhel ,  Jurgen Kleibergen ,  Vinod Ramaseshan ,  Timothy Abbott ,  Mohamed Sabri Abdelghani

IPC分类号： C07C41/06 ,  C10G7/06 ,  C10G9/00 ,  C10G47/12 ,  C10G49/04 ,  C10G57/00 ,  C10G69/06 ,  C10G69/14 ,  C10G55/04 ,  C10G67/04

摘要： Methods and systems for producing light olefins are disclosed. A feedstock comprising crude oil is distilled to produce a plurality of streams including a naphtha stream and a vacuum residue stream. The naphtha is fed to a steam cracking unit to produce light olefins, C4 hydrocarbons, pyrolysis gasoline and pyrolysis oil. The vacuum residue stream is hydrocracked to produce additional naphtha and heavy unconverted oil. The heavy unconverted oil and the pyrolysis oil from steam cracking unit can be deasphalted to produce deasphalted oil and pitch product. The deasphalted oil can be further hydrocracked to produce naphtha. The pitch product can be gasified to produce synthesis gas, which is further used to produce methanol. The methanol can be used to react with isobutylene of the C4 hydrocarbon stream from steam cracker to produce methyl tert-butyl ether (MTBE).