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公开(公告)号：US20240262769A1
公开(公告)日：2024-08-08
申请号：US18616840
申请日：2024-03-26
Applicant: T.EN Process Technology, Inc.
Inventor： Thomas P. Binder , Louis A. Kapicak
IPC: C07C29/145 , B01J23/30 , B01J38/74 , C07C29/76
CPC classification number: C07C29/145 , B01J23/30 , B01J38/74 , C07C29/76
Abstract: Integrated processes are disclosed for the catalytic conversion of carbohydrate to ethylene glycol and/or propylene glycol using a homogeneous, tungsten-containing retro-aldol catalyst. In these processes, the carbohydrate is subjected to retro-aldol conversion and hydrogenation to provide a reaction product containing ethylene glycol and/or propylene glycol, other reaction process including organic acids, itols and tungsten species. Ethylene glycol and propylene glycol are separated from the reaction product for purification, and at least a portion of the remaining fraction is subjected to ion exclusion chromatography to provide an eluant containing tungsten species and a subsequent eluant containing organic acids and a substantially reduced concentration of tungsten species. At least a portion of the eluant containing tungsten species can be recycled for reuse directly or with intervening unit operations to enhance the catalytic activity of the tungsten species. The organic-containing fraction can be subjected to one or more unit operations to provide salable products or subjected to selective hydrogenolysis to lower glycols.
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公开(公告)号：US12006299B2
公开(公告)日：2024-06-11
申请号：US17637197
申请日：2020-09-01
Applicant: SHELL OIL COMPANY
Inventor： Jesse Raymond Black , Roel Guillaume Hubertus Leonardus Bastings , Mark Albert Petrus Dekkers
IPC: C07D317/38 , B01D3/14 , C07C29/10 , C07C29/76 , C07C29/80
CPC classification number: C07D317/38 , B01D3/148 , C07C29/106 , C07C29/76 , C07C29/80
Abstract: The invention relates to a process for producing ethylene carbonate and/or ethylene glycol, which comprises the following steps: a) supplying an overhead absorber stream withdrawn from an absorber to a vapor-liquid separator to yield an aqueous bottoms stream and a recycle gas stream; b) supplying an aqueous process stream comprising one or more impurities to a distillation apparatus to yield an overhead impurities stream and a purified aqueous process stream, wherein the aqueous process stream supplied to the distillation apparatus comprises at least a portion of the aqueous bottoms stream withdrawn from the vapor-liquid separator, wherein the overhead impurities stream is supplied to a condenser and is cooled to a temperature in the range of from 5 to 95° C., wherein the cooled overhead impurities stream is split into a reflux stream which is recycled to the distillation apparatus and an overhead impurities stream; and further steps c) and d).
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公开(公告)号：US20240140894A1
公开(公告)日：2024-05-02
申请号：US18373461
申请日：2023-09-27
Applicant: Illinois Tool Works Inc.
Inventor： Raul Ondono Molina , Hector Torralvo Martin , Guillem Fernandez Freixes , Laura Martin Sanchez
Abstract: Provided is method of treating a product of a chemical process, such as an amino acid or a nucleoside, the method comprising adding the product to a solvent such as propanol in a vessel to obtain a mixture, stirring the mixture, filtering the mixture so as to separate the product from the solvent and drying the filtered product.
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公开(公告)号：US11958794B2
公开(公告)日：2024-04-16
申请号：US18099072
申请日：2023-01-19
Applicant: T.EN Process Technology, Inc.
Inventor： Thomas P. Binder , Louis Kapicak
IPC: C07C29/145 , B01J23/30 , B01J38/74 , C07C29/76
CPC classification number: C07C29/145 , B01J23/30 , B01J38/74 , C07C29/76
Abstract: Integrated processes are disclosed for the catalytic conversion of carbohydrate to ethylene glycol and/or propylene glycol using a homogeneous, tungsten-containing retro-aldol catalyst. In these processes, the carbohydrate is subjected to retro-aldol conversion and hydrogenation to provide a reaction product containing ethylene glycol and/or propylene glycol, other reaction process including organic acids, itols and tungsten species. Ethylene glycol and propylene glycol are separated from the reaction product for purification, and at least a portion of the remaining fraction is subjected to ion exclusion chromatography to provide an eluant containing tungsten species and a subsequent eluant containing organic acids and a substantially reduced concentration of tungsten species. At least a portion of the eluant containing tungsten species can be recycled for reuse directly or with intervening unit operations to enhance the catalytic activity of the tungsten species. The organic-containing fraction can be subjected to one or more unit operations to provide salable products or subjected to selective hydrogenolysis to lower glycols.
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公开(公告)号：US20230355491A1
公开(公告)日：2023-11-09
申请号：US18195712
申请日：2023-05-10
Applicant: Symrise AG
Inventor： Gerhard SCHMAUS , Jurgen Siewert , Sven Winkler , Sabine Lange , Torsten Stephan
IPC: A61K8/34 , A61Q5/00 , A61Q11/00 , A61Q17/04 , A61Q19/00 , C07C29/04 , C07C29/76 , C07C29/84 , C07C31/20
CPC classification number: A61K8/345 , A61Q5/00 , A61Q11/00 , A61Q17/04 , A61Q19/00 , C07C29/04 , C07C29/76 , C07C29/84 , C07C31/20
Abstract: Suggested are 1,2-alkanediols of formula (I) HOCH2—CH(OH)—R1 in which R1 stands for an alkyl radical having 3 to 10 carbon atoms, said diols being substantially free of lactones and/or peroxides.
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Patent Agency Ranking
公开(公告)号：US11807789B2
公开(公告)日：2023-11-07
申请号：US17704339
申请日：2022-03-25
Inventor： Abdullah S. Sultan , Tinku Saikia , Jaber Al Jaberi
CPC classification number: C09K11/07 , C07C29/76 , E21B41/0064 , B82Y20/00 , B82Y30/00 , B82Y40/00 , C09K2211/10
Abstract: A method of inhibiting carbon dioxide (CO2) hydrate formation in a CO2 pipeline is described. The method includes injecting a composition including monoethylene glycol carbon quantum dots (MEG CQDs) into the CO2 pipeline to deposit the MEG CQDs on an inside surface of the CO2 pipeline. The method further includes pressurizing the CO2 pipeline with a gas stream containing CO2 and water vapor at a pressure of 200-2,000 pounds per square inch (psi). The MEG CQDs are present on the inside surface of the CO2 pipeline in an amount effective to reduce the formation of CO2 hydrates in the CO2 pipeline during the pressurizing in comparison to the formation of the CO2 hydrates in the CO2 pipeline under the same conditions but in the absence of the MEG CQDs.
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公开(公告)号：US11708315B2
公开(公告)日：2023-07-25
申请号：US17914677
申请日：2021-03-04
Applicant: SABIC Global Technologies B.V.
Inventor： Srikant Gopal , Adel Al-Dossari , Jintang Duan
CPC classification number: C07C29/76 , B01D15/20 , B01D15/362 , B01J39/05 , B01J39/20 , B01J47/016
Abstract: Method for lowering aldehyde content in a mixture comprising (i) diethylene glycol (DEG) and/or triethylene glycol (TEG) and (ii) aldehyde are disclosed. An ion exchange resin is soaked in monoethylene glycol. The mixture comprising 5 to 200 ppm aldehyde is then flowed to make contact with the soaked ion exchange resin to produce a product comprising DEG and/or TEG and less than 15 ppm aldehyde.
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公开(公告)号：US20230227386A1
公开(公告)日：2023-07-20
申请号：US18099072
申请日：2023-01-19
Applicant: T.EN Process Technology, Inc.
Inventor： Thomas Binder , Louis Kapicak
IPC: C07C29/145 , C07C29/76 , B01J38/74 , B01J23/30
CPC classification number: C07C29/145 , B01J23/30 , B01J38/74 , C07C29/76
Abstract: Integrated processes are disclosed for the catalytic conversion of carbohydrate to ethylene glycol and/or propylene glycol using a homogeneous, tungsten-containing retro-aldol catalyst. In these processes, the carbohydrate is subjected to retro-aldol conversion and hydrogenation to provide a reaction product containing ethylene glycol and/or propylene glycol, other reaction process including organic acids, itols and tungsten species. Ethylene glycol and propylene glycol are separated from the reaction product for purification, and at least a portion of the remaining fraction is subjected to ion exclusion chromatography to provide an eluant containing tungsten species and a subsequent eluant containing organic acids and a substantially reduced concentration of tungsten species. At least a portion of the eluant containing tungsten species can be recycled for reuse directly or with intervening unit operations to enhance the catalytic activity of the tungsten species. The organic-containing fraction can be subjected to one or more unit operations to provide salable products or subjected to selective hydrogenolysis to lower glycols.
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9.发明申请公开(公告)号：US20190241493A1
公开(公告)日：2019-08-08
申请号：US16386906
申请日：2019-04-17
Applicant: Cameron International Corporation
Inventor： Daniel W. Phelps , Luis Eduardo Caires Fernandez
CPC classification number: C07C29/80 , B01D3/06 , B01D3/143 , B01D15/00 , B01D15/36 , B01D15/362 , C07C29/74 , C07C29/76 , C07C31/202
Abstract: A system and process for removing divalent cations from a rich MEG feed stream is presented. An ion exchange bed containing a cation exchange resin adsorbs the divalent cations in the rich MEG feed stream as it flows through the ion exchange bed. After the divalent ions have been removed, the feed stream flows through a flash separator and a distillation column to reclaim MEG. Alternatively, the feed stream flows through a distillation column to regenerate MEG. The spent cation exchange resin may be regenerated in place using a regeneration brine comprised of sodium chloride and water. After use, the regeneration brine may be disposed as waste or recycled to the brine storage tank and re-used to regenerate the cation exchange resin.
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公开(公告)号：US20190233356A1
公开(公告)日：2019-08-01
申请号：US16380023
申请日：2019-04-10
Applicant: Cameron Solutions, Inc.
Inventor： Brian E. Messenger
CPC classification number: C07C29/88 , B01D3/009 , C07C29/50 , C07C29/76 , C07C29/78 , C10L3/107 , C10L2290/12 , C10L2290/54 , C07C31/202
Abstract: A system and method for removing organic carboxylates from a mono ethylene glycol (“MEG”) stream includes a reaction vessel; means for cooling and diluting the MEG stream being routed to the reaction vessel; means for acidifying the cooled and diluted MEG stream during its residence time within the reaction vessel; and means for removing an acetic-rich overhead stream from the reaction vessel. The acidification of the cooled and diluted MEG stream occurs under a vacuum. The reaction vessel may be located downstream of a calcium removal vessel and receive a filtered bottom stream from that vessel, or it may be a single reaction vessel that cycles between a calcium removal mode and an acetate removal mode, with the pressure of the single vessel being greater during the calcium removal mode than during the acetate removal mode.
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