公开(公告)号：US11472756B2

公开(公告)日：2022-10-18

申请号：US16470818

申请日：2017-12-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Jagan Mohan Rallapalli ,  Shahid Azam ,  Haresh Shakralal Patel

IPC: C07C7/04 ,  B01D3/32 ,  B01D3/14 ,  C07C11/02

Abstract: A method of separating linear alpha olefins includes: passing a feed stream comprising linear alpha olefins through a first column; distributing a C8− fraction to a top portion of the first column; distributing a C9+ fraction to a bottom portion of the first column; passing the C8− fraction directly to a top portion of a second column; passing the C9+ fraction directly to a bottom portion of a second column; distributing a C11+ fraction to the bottom portion of the second column; withdrawing a C10 fraction as a side draw from the second column; and passing a liquid stream and a vapor stream from the second column to the first column.

公开(公告)号：US20190010101A1

公开(公告)日：2019-01-10

申请号：US16065901

申请日：2016-12-28

Applicant: SABIC Global Technologies B.V.

Inventor： Abdullah Saad Al-Dughaither ,  Shahid Azam ,  Adel Saeed Al-Dossari ,  Abdulmajeed Mohammed Al-Hamdan

IPC: C07C7/04 ,  C08F110/02 ,  B01D3/14

Abstract: A method of producing hexene includes: passing a feed stream comprising C1 to C24 hydrocarbons through a distillation column, wherein a reflux ratio of the distillation column is greater than or equal to 1.33; distributing a light fraction comprising C4-C6 hydrocarbons to a top portion of the distillation column; distributing a heavy fraction comprising C8-C12 hydrocarbons to a bottom portion of the distillation column; and withdrawing a top product comprising hexene from the distillation column.

公开(公告)号：US20250050317A1

公开(公告)日：2025-02-13

申请号：US18721805

申请日：2022-12-20

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Ilia Korobkov ,  Abdulaziz Al-Nezari ,  Maher Matar Al-Dajane ,  Sebastiano Licciulli ,  Shahid Azam

IPC: B01J31/18

Abstract: The disclosure provides a catalyst reaction mixture including a ligand having a backbone with at least one phosphorus atom and at least one nitrogen atom, a chromium compound, and a solvent mixture including decalin and at least one additional solvent, wherein the solvent mixture comprises decalin in an amount of less than 20 wt. % and, optionally, perhydroindane in an amount of 50 wt. % or less, based on the total weight of the solvent mixture. A method of forming a linear alpha olefin through ethylene oligomerization is also provided, the method including contacting ethylene gas with a reaction mixture in a reactor, the reaction mixture including the catalyst reaction mixture of the disclosure; and withdrawing a product stream including at least one linear alpha olefin, such as 1-butene, 1-hexene, or 1-octene, from the reactor.

公开(公告)号：US11331655B2

公开(公告)日：2022-05-17

申请号：US16474101

申请日：2017-12-21

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Abdullah Saad Al-Dughaither ,  Shahid Azam ,  Abdulmajeed Mohammed Al-Hamdan ,  Dafer Mubarak Alshahrani ,  Sebastiano Licciulli ,  Anina Wohl ,  Wolfgang Muller ,  Heinz Bolt ,  Andreas Meiswinkel ,  Tobias Meier ,  Ralf Noack

IPC: B01J31/18 ,  B01J31/14 ,  C07C2/26 ,  B01J37/24 ,  B01J37/22 ,  C08F4/78 ,  C07C11/08 ,  C07C11/107 ,  B01J31/16

Abstract: A method for preparing a homogenous catalyst for the production of linear alpha olefins includes: preparing a first pre-catalyst solution comprising a modifier and an organoaluminum compound in a first solvent wherein the first pre-catalyst solution is reacted and stored in a first vessel for a period of time of 1 hour to 90 days; preparing a second pre-catalyst solution comprising a second solvent, a ligand, and a chromium containing compound, wherein the second pre-catalyst solution is stored in a second vessel for a period of time of 1 hour to 90 days; and after a period of time, adding the first pre-catalyst solution to a catalyst pre-formation unit; after the same period of time, adding the second pre-catalyst solution to the catalyst pre-formation unit; forming a homogenous catalyst by mixing the first pre-catalyst solution and the second pre-catalyst solution; adding the homogeneous catalyst to a reaction vessel, wherein the reaction vessel comprises an alpha olefin; and forming the linear alpha olefin by mixing the homogeneous catalyst and the homogenous catalyst.

公开(公告)号：US11285469B2

公开(公告)日：2022-03-29

申请号：US16473674

申请日：2017-12-28

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Abdullah Saad Al-Dughaither ,  Shahid Azam ,  Abdulmajeed Mohammed Al-Hamdan ,  Dafer Mubarak Alshahrani ,  Sebastiano Licciulli ,  Andreas Meiswinkel ,  Heinz Bolt ,  Wolfgang Muller ,  Anina Wohl

IPC: B01J37/04 ,  B01J31/02 ,  B01J31/14 ,  C07C11/107

Abstract: A method for preparing a homogenous catalyst for use in preparing a linear alpha olefin includes: preparing a first pre-catalyst solution by mixing a chromium source and a ligand in a first solvent, wherein the first pre-catalyst solution is stored in a first vessel; preparing a second pre-catalyst solution by mixing an organoaluminum compound and a modifier in a second solvent, wherein the second pre-catalyst solution is stored in a second vessel; and simultaneously feeding the first pre-catalyst solution and the second pre-catalyst solution directly into a reaction vessel, wherein the reaction vessel includes a third solvent.

公开(公告)号：US11254630B2

公开(公告)日：2022-02-22

申请号：US16470753

申请日：2017-12-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Dafer Mubarak Alshahrani ,  Shahid Azam ,  Abdullah Saad Al-Dughaither ,  Abdulmajeed Mohammed Al-Hamdan

IPC: C07C7/04 ,  B01D3/14 ,  C07C11/04 ,  C07C11/08 ,  C07C11/107

Abstract: A method of separating linear alpha olefins, comprising: passing a feed stream comprising linear alpha olefins through a first column; distributing a C4− fraction to a top portion of the first column; withdrawing a C6+ fraction from a bottom portion of the first column and passing the C6+ fraction through a second column; distributing a C12+ fraction to a bottom portion of the second column; withdrawing a C10− fraction from a top portion of the second column and passing the C10− fraction through a third column, wherein the C10− fraction is substantially free of polymer; and distributing a C6 fraction to a top portion of the third column.

公开(公告)号：US20240067588A1

公开(公告)日：2024-02-29

申请号：US18259962

申请日：2021-12-20

Applicant: SABIC Global Technologies B.V.

Inventor： Shahid Azam ,  Abdulmajeed Mohammed Al-Hamdan ,  Mohammed Fahad Al-Anazi ,  Bander Bawareth ,  Ashim Kumar Ghosh ,  Debashis Chakraborty ,  Somak Paul ,  Rajan V. Deshmukh ,  Ahmed Hussain Eissa ,  Omar A. Marghalani ,  Sebastiano Licciulli

IPC: C07C5/22 ,  C07C7/00

CPC classification number: C07C5/222 ,  C07C7/005 ,  C07C2529/40

Abstract: A method for purifying 1-hexene is disclosed. The method can include contacting a first stream containing 1-hexene and 2-ethyl-1-butene with an isomerization catalyst containing an comprising an alumina, silica-alumina, a zeolite, or an ion exchange resin, or any combinations thereof, under conditions sufficient to selectively isomerize at least a portion of 2-ethyl-1-butene into 3-methyl-2-pentene and form a second stream containing 1-hexene and 3-methyl-2-pentene, and separating the second stream into a third stream containing 1-hexene and a fourth stream containing 3-methyl-2-pentene.

公开(公告)号：US11225444B2

公开(公告)日：2022-01-18

申请号：US16471063

申请日：2017-12-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Abdullah Saad Al-Dughaiter ,  Shahid Azam ,  Abdulmajeed Mohammed Al-Hamdan ,  Dafer Mubarak Alshahrani ,  Ralf Noack ,  Tobias Meier ,  Gabriel Waurick ,  Heinz Bolt ,  Andreas Meiswinkel ,  Wolfgang Müller ,  Anina Wohl ,  Hans-Jorge Zander

IPC: B01D3/42 ,  C07C7/04

Abstract: A method of column control includes: passing a feed stream and a make-up stream through a column; withdrawing an overhead fraction from the column; purging at least a portion of the overhead fraction; cooling at least a portion of the overhead fraction in a heat exchanger and passing it through a reflux drum; withdrawing a purge stream and a distillate stream from the reflux drum, wherein the distillate stream has a constant flow rate; recycling at least a portion of the distillate stream back to the column; and passing at least a portion of the distillate stream to a downstream process.

公开(公告)号：US20210130265A1

公开(公告)日：2021-05-06

申请号：US16471063

申请日：2017-12-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Abdullah Saad Al-Dughaiter ,  Shahid Azam ,  Abdulmajeed Mohammed Al-Hamdan ,  Dafer Mubarak Alshahrani ,  Ralf Noack ,  Tobias Meier ,  Gabriel Waurick ,  Heinz Bolt ,  Andreas Meiswinkel ,  Wolfgang Müller ,  Anina Wohl ,  Hans-Jorge Zander

IPC: C07C7/04 ,  B01D3/42

Abstract: A method of column control includes: passing a feed stream and a make-up stream through a column; withdrawing an overhead fraction from the column; purging at least a portion of the overhead fraction; cooling at least a portion of the overhead fraction in a heat exchanger and passing it through a reflux drum; withdrawing a purge stream and a distillate stream from the reflux drum, wherein the distillate stream has a constant flow rate; recycling at least a portion of the distillate stream back to the column; and passing at least a portion of the distillate stream to a downstream process.

公开(公告)号：US10793502B2

公开(公告)日：2020-10-06

申请号：US16468516

申请日：2017-12-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Mohammed H. Al-Hazmi ,  Shahid Azam

IPC: C07C51/44 ,  C07C51/487

Abstract: Disclosed herein is a method of purifying acetic acid. The method comprises passing a feed stream comprising acetic acid through a distillation column; contacting the acetic acid with a permanganate oxidizing agent and hydrogen gas within the distillation column; withdrawing an acetic acid product from the distillation column; and withdrawing a gaseous product stream from a top portion of the distillation column, wherein the gaseous product stream comprises ethane, methane, carbon dioxide, oxygen, nitrogen, or a combination comprising at least one of the foregoing.