公开(公告)号：US20200223768A1

公开(公告)日：2020-07-16

申请号：US16638944

申请日：2018-08-02

Applicant: SHELL OIL COMPANY

Inventor： Guus VAN ROSSUM ,  Ronald Jan SCHOONEBEEK ,  Laura Mariel CALVO ,  Ivana Daniela ESPOSITO CASSIBBA ,  Georgios MITKIDIS ,  Pejman PAJAND ,  Maria SAN ROMAN MACIA ,  Peter Anton August KLUSENER

IPC: C07C5/48

Abstract: The invention relates to a process for oxidative dehydrogenation of ethane, comprising the steps of: (a) subjecting a stream comprising ethane to oxidative dehydrogenation conditions; (b) removing water from at least part of the effluent resulting from step (a); (c) optionally removing unconverted oxygen and/or carbon monoxide and/or ycetylene from at least part of the stream comprising ethylene, unconverted ethane, carbon dioxide, optionally unconverted oxygen, optionally carbon monoxide and optionally acetylene resulting from step (b); (d) removing ethylene from at least part of the stream comprising ethylene, unconverted ethane and carbon dioxide resulting from step (b) or (c) by a complexation separation method; (e) partially and selectively removing carbon dioxide from at least part of the stream comprising unconverted ethane and carbon dioxide resulting from step (d); (f) recycling at least part of the stream comprising unconverted ethane and carbon dioxide resulting from step (e) to step (a).

公开(公告)号：US20210387931A1

公开(公告)日：2021-12-16

申请号：US17289452

申请日：2019-10-31

Applicant: SHELL OIL COMPANY

Inventor： Maria SAN ROMAN MACIA ,  Pejman PAJAND ,  Ivana Daniela ESPOSITO CASSIBBA

IPC: C07C7/00 ,  C07C5/48 ,  C07C7/04 ,  B01D3/14

Abstract: The invention relates to a process for the production of ethylene by oxidative dehydrogenation of ethane, comprising: a) subjecting a stream comprising ethane to oxidative dehydrogenation conditions, resulting in a stream comprising ethylene, unconverted ethane and light components; b) subjecting ethylene, unconverted ethane and light components from the stream resulting from step a) to distillation, resulting in a stream comprising ethylene and light components and a stream comprising unconverted ethane; c) optionally recycling unconverted ethane from the stream comprising unconverted ethane resulting from step b) to step a); and d) subjecting ethylene and light components from the stream comprising ethylene and light components resulting from step b) to distillation at a top column pressure which is higher than the top column pressure in step b), resulting in a stream comprising light components and a stream comprising ethylene.

公开(公告)号：US20200223769A1

公开(公告)日：2020-07-16

申请号：US16638955

申请日：2018-08-02

Applicant: SHELL OIL COMPANY

Inventor： Laura Mariel CALVO ,  Ivana Daniela ESPOSITO CASSIBBA ,  Georgios MITKIDIS ,  Pejman PAJAND ,  Guus VAN ROSSUM ,  Maria SAN ROMAN MACIA ,  Ronald Jan SCHOONEBEEK ,  Peter Anton August KLUSENER

IPC: C07C5/48

Abstract: The invention relates to a process for oxidative dehydrogenation of ethane, comprising the steps of: (a) subjecting a stream comprising ethane to oxidative dehydrogenation conditions; (b) removing water from at least part of the effluent resulting from step (a); (c) optionally removing unconverted oxygen and/or carbon monoxide and/or acetylene from at least part of the stream comprising ethylene, unconverted ethane, carbon dioxide, optionally unconverted oxygen, optionally carbon monoxide and optionally acetylene resulting from step (b); (d) removing ethylene from at least part of the stream comprising ethylene, unconverted ethane and carbon dioxide resulting from step (b) or (c) by a complexation separation method; (e) partially and selectively removing carbon dioxide from at least part of the stream comprising unconverted ethane and carbon dioxide resulting from step (d); (f) recycling at least part of the stream comprising unconverted ethane and carbon dioxided resulting from step (e) to step (a).