-
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
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：US20250100956A1
公开(公告)日：2025-03-27
申请号：US18724806
申请日：2022-12-22
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： Shahid Azam , Ashim Kumar Ghosh , Vinu Viswanath , Bander Bawareth , Zheng Liu , Aspi Kersasp Kolah , Debashis Chakraborty , Andrei Merenov
Abstract: The disclosure provides a method of purifying a linear alpha olefin product, the method including feeding a linear alpha olefin feed stream comprising the linear alpha olefin product and at least one impurity into a distillation column, the distillation column having a plurality of stacked stages; withdrawing a side stream from at least one of said plurality of stacked stages; feeding the side stream into a reactor containing an isomerization catalyst to convert at least a portion of the at least one impurity from a first isomer to a second isomer, producing a reactor product stream having a reduced content of the first isomer; returning the reactor product stream to a stage of the distillation column; and withdrawing an overhead stream from the distillation column comprising the linear alpha olefin product and having a reduced content of the at least one impurity.
-
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.
-
Patent Agency Ranking
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
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
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
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.
-
-
-
-
-
-
-
-
-
Search Results
28
records
(took 0.017 seconds)
