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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.
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公开(公告)号：US20190351403A1
公开(公告)日：2019-11-21
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.
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公开(公告)号：US20190314798A1
公开(公告)日：2019-10-17
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
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.
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公开(公告)号：US20190010100A1
公开(公告)日：2019-01-10
申请号：US16065899
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 the feed stream comprises greater than or equal to 1 wt. % octene; 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.
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公开(公告)号：US20180021692A1
公开(公告)日：2018-01-25
申请号：US15553761
申请日：2016-02-23
Applicant: SABIC Global Technologies B.V.
Inventor： Roland Schmidt , Sebastiano Licciulli , Shahid Azam
IPC: B01D3/00 , C07C51/487 , C07C53/08 , B01D5/00
Abstract: A process of purifying acetic acid is provided. The process includes feeding a stream of acetic acid into a distillation column and distilling acetic acid in the presence of an oxidizing agent in the distillation column, to oxidize oxidizable impurities in the acetic acid, wherein the oxidizing agent is an oxidant capable of cleaving C═C bonds. The process further includes removing a distilled acetic acid stream from the distillation column. Further processes for purifying acetic acid and systems for purifying acetic acid are also provided.
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Patent Agency Ranking
公开(公告)号：US11986805B2
公开(公告)日：2024-05-21
申请号：US17431812
申请日：2020-03-26
Applicant: SABIC Global Technologies B.V.
Inventor： Srikant Gopal , Turki Al-Smari , Shahid Azam , Khalid Karim
IPC: B01J23/96 , B01J23/28 , B01J23/652 , B01J38/18 , C07C51/215 , C07C53/08
CPC classification number: B01J23/96 , B01J23/28 , B01J23/6525 , B01J38/18 , C07C51/215 , C07C53/08
Abstract: Systems and methods for using and regenerating a catalyst for producing acetic acid from ethane are disclosed. Feed stream comprising ethane and an oxidant including oxygen is flowed to a reactor, in which a catalyst comprising MoVNbPd oxide is disposed. The ethane and the oxidant are reacted in presence of the catalyst under reaction conditions sufficient to produce acetic acid. When the catalyst's ability to catalyze the reaction between the ethane and the oxidant is reduced by a predetermined percentage, the flow of the feed stream to the reactor is ceased. A regenerating gas stream is flowed through the reactor to contact the regenerating gas stream with the catalyst under operating conditions to increase the catalyst's ability to catalyze the reaction between the ethane and the oxidant.
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公开(公告)号：US10758838B2
公开(公告)日：2020-09-01
申请号：US15553761
申请日：2016-02-23
Applicant: SABIC Global Technologies B.V.
Inventor： Roland Schmidt , Sebastiano Licciulli , Shahid Azam
Abstract: A process of purifying acetic acid is provided. The process includes feeding a stream of acetic acid into a distillation column and distilling acetic acid in the presence of an oxidizing agent in the distillation column, to oxidize oxidizable impurities in the acetic acid, wherein the oxidizing agent is an oxidant capable of cleaving C═C bonds. The process further includes removing a distilled acetic acid stream from the distillation column. Further processes for purifying acetic acid and systems for purifying acetic acid are also provided.
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公开(公告)号：US20200222827A1
公开(公告)日：2020-07-16
申请号：US16829458
申请日：2020-03-25
Applicant: SABIC Global Technologies B.V.
Inventor： Roland Schmidt , Sebastiano Licciulli , Shahid Azam
IPC: B01D3/00 , B01D5/00 , C07C51/487 , C07C53/08
Abstract: A process of purifying acetic acid is provided. The process includes feeding a feed stream comprising acetic acid into a bottom half of a distillation column and distilling the acetic acid in the presence of a homogeneous oxidizing agent in the distillation column, to oxidize oxidizable impurities in the acetic acid, wherein the homogeneous oxidizing agent is capable of cleaving C═C bonds. The process further includes removing a distilled acetic acid stream from the distillation column. Further processes for purifying acetic acid and systems for purifying acetic acid are also provided.
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公开(公告)号：US20200087582A1
公开(公告)日：2020-03-19
申请号：US16470694
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
Abstract: A method of treating a hydrocarbon stream includes: withdrawing an effluent stream comprising hydrocarbons and polymer from a reactor; contacting the effluent stream with a coolant stream; passing the effluent stream through a heat exchanger; wherein after passing the effluent stream through the heat exchanger, the heat exchanger is substantially free of polymer deposits.
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公开(公告)号：US20190322965A1
公开(公告)日：2019-10-24
申请号：US15780756
申请日：2016-12-01
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： Abdullah Alqahtani , Shahid Azam , Shehzada Khurram , Anina Wöhl , Wolfgang Müller , Andreas Meiswinkel , Heinz Bölt , Ralf Noack , Marco Harff , Gabriel Waurick , Tobias Meier
Abstract: A process for flushing an oligomerization reactor is described, including flushing the oligomerization reactor with a flushing medium comprising C6 linear alpha olefins, C8 linear alpha olefins, C10 linear alpha olefins, or a combination including at least one of the foregoing, to provide a purge stream comprising the C6 linear alpha olefins, C8 linear alpha olefins, C10 linear alpha olefins, or a combination including at least one of the foregoing, and a polymer byproduct of an oligomerization reaction. A process for the oligomerization of an olefin is also described, wherein the process includes oligomerizing the olefin in the reactor to form a reaction product stream comprising linear alpha olefins, and subsequently flushing the oligomerization reactor according to the process disclosed herein.
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