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公开(公告)号：US11000819B2
公开(公告)日：2021-05-11
申请号：US16061758
申请日：2016-12-13
Applicant: SHELL OIL COMPANY
Inventor： Jesse Raymond Black , Gregory John Ward , Roel Guillaume Hubertus Leonardus Bastings , David Allen Van Kleeck , Wayne Errol Evans
IPC: B01J8/04 , C07D301/32
Abstract: The invention provides a reaction system for the production of ethylene carbonate and/or ethylene glycol. The reaction system having a guard bed system upstream of a catalytic EO reactor. The guard bed system having a feed line supplying a gaseous feed and an effluent line configured to remove the treated gaseous feed. The guard bed system has two or more guard bed vessels arranged in series in sequential order, each having an inlet, a bed of guard bed material and an outlet. The inlet of each guard bed vessel is attached by means of valves to both the feed line and the outlet of the guard bed vessel preceding it in sequential order. The outlet of each guard bed vessel is attached by means of valves to both the effluent line and to the inlet of the guard bed vessel following it in sequential order.
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2.发明授权公开(公告)号：US10717719B2
公开(公告)日：2020-07-21
申请号：US16092843
申请日：2017-04-10
Applicant: SHELL OIL COMPANY
Abstract: Processes for producing ethylene carbonate and/or ethylene glycol, and associated reaction systems are similarly provided. Specifically, a process is provided that comprises supplying an overhead absorber stream withdrawn from an absorber to a vapor-liquid separator to yield an aqueous bottoms stream and a recycle gas stream; supplying an aqueous process stream comprising one or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; supplying at least a portion of the purified aqueous process stream and an ethylene oxide product stream to the absorber; and contacting the ethylene oxide product stream with the purified aqueous process stream in the absorber in the presence of one or more carboxylation and hydrolysis catalysts to yield a fat absorbent stream comprising ethylene carbonate and/or ethylene glycol.
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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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4.发明授权公开(公告)号：US11655230B2
公开(公告)日：2023-05-23
申请号：US16769557
申请日：2018-12-06
Applicant: SHELL OIL COMPANY
Inventor： Roel Guillaume Hubertus Leonardus Bastings , Jesse Raymond Black , Vesna Bojovic , Wayne Errol Evans
IPC: C07D317/38 , C07C29/17
CPC classification number: C07D317/38 , C07C29/172
Abstract: The invention relates to a process for producing ethylene glycol and/or ethylene carbonate, said process comprising contacting at least a portion of a recycle gas stream comprising an alkyl iodide impurity with a guard bed system positioned upstream of an ethylene oxide reactor to produce a treated recycle gas stream, wherein the guard bed system comprises silver on alumina; contacting a feed gas stream comprising ethylene, oxygen and at least a portion of the treated recycle gas stream with an epoxidation catalyst in the ethylene oxide reactor to produce an epoxidation reaction product comprising ethylene oxide; and contacting at least a portion of the epoxidation reaction product comprising ethylene oxide with an aqueous absorbent in the presence of an iodide-containing catalyst in an absorber to produce an aqueous product stream comprising ethylene carbonate and/or ethylene glycol and the recycle gas stream comprising the alkyl iodide impurity.
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Patent Agency Ranking
公开(公告)号：US11498911B2
公开(公告)日：2022-11-15
申请号：US16769553
申请日：2018-12-06
Applicant: SHELL OIL COMPANY
Inventor： Roel Guillaume Hubertus Leonardus Bastings , Jesse Raymond Black , Vesna Bojovic , Wayne Errol Evans , Gregory John Ward
IPC: C07C29/50 , C07C317/38 , B01J21/04 , B01J23/50 , B01D53/04 , B01D53/70 , B01D53/78 , C07D317/38
Abstract: A process for producing ethylene glycol and/or ethylene carbonate, said process comprising contacting at least a portion of a recycle gas stream comprising an alkyl iodide impurity with a guard bed system positioned upstream of an ethylene oxide reactor to produce a treated recycle gas stream, wherein the guard bed system comprises silver on alumina; contacting an epoxidation feed stream comprising an ethylene feed stream, oxygen, chloride moderator, and at least a portion of the treated recycle gas stream with an epoxidation catalyst in the ethylene oxide reactor to produce an epoxidation reaction product comprising ethylene oxide; and contacting at least a portion of the epoxidation reaction product comprising ethylene oxide with a liquid absorbent in the presence of an iodide-containing catalyst in an absorber to produce a product stream comprising ethylene carbonate and/or ethylene glycol and the recycle gas stream comprising the alkyl iodide impurity.
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公开(公告)号：US09718752B2
公开(公告)日：2017-08-01
申请号：US14893273
申请日：2014-05-28
Applicant: SHELL OIL COMPANY
Inventor： Kai Jürgen Fischer , Wouter Koot , Arlette Wesenhagen , Roel Guillaume Hubertus Leonardus Bastings
Abstract: The invention provides a process for the recovery of an alkylene glycol from an aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol, said process comprising the steps of providing the aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol, providing a first solvent stream, combining said aqueous stream comprising the alkylene glycol and the corresponding dialkylene glycol with said first solvent stream and recovering at least a portion of the alkylene glycol by liquid-liquid extraction, wherein said solvent comprises an amine.
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公开(公告)号：US12054450B2
公开(公告)日：2024-08-06
申请号：US17293788
申请日：2019-11-19
Applicant: SHELL OIL COMPANY
Inventor： Jesse Raymond Black , Peter Mervyn Wilkinson , Christopher Paul Emborsky , Roel Guillaume Hubertus Leonardus Bastings , Benedict Ignatius Maria Ten Bosch
CPC classification number: C07C29/106 , B01D3/008 , B01D3/20 , B01D3/324
Abstract: A process for the preparation of an alkylene glycol from an alkene comprising steps of: a) supplying a gas composition to an alkylene oxide absorber through a gas inlet, the absorber comprising an absorption section and a sump, and allowing the gas composition to pass upwards; b) supplying a lean absorbent to the top of the absorption section and allowing the lean absorbent to pass downwards; c) intimately contacting the gas composition with lean absorbent in the absorption section in the presence of one or more catalysts that promote carboxylation and hydrolysis; and d) withdrawing fat absorbent from the absorption section and passing the fat absorbent and any liquid condensate through the sump, wherein the sump comprises one or more baffles that define a flow pathway from a sump inlet to a sump outlet between the one or more baffles.
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8.发明授权公开(公告)号：US10815176B2
公开(公告)日：2020-10-27
申请号：US16613646
申请日：2018-05-17
Applicant: SHELL OIL COMPANY
Abstract: Processes and associated reaction systems for the preparation of ethylene carbonate and ethylene glycol from ethylene oxide are provided, particularly processes and associated reaction systems directed to heat integration in the treatment of recycle gas streams.
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公开(公告)号：US10279280B2
公开(公告)日：2019-05-07
申请号：US15513572
申请日：2015-09-21
Applicant: SHELL OIL COMPANY
Abstract: A process for the preparation of an alkylene glycol from an alkene is provided, along with an absorber apparatus. The process comprises: supplying a gas composition to an absorber comprising a column of vertically stacked trays, wherein each of the vertically stacked trays comprises: a perforated gas-liquid contacting member or members, a liquid inlet area, an outlet weir extending vertically above a surface of the tray at an opposite end of the tray from the liquid inlet area and having a height of at least 200 mm and at most 1500 mm, and a downcomer element which, in cooperation with an inner surface of a wall of the column, forms a downcomer for the passage of liquid downwardly to the liquid inlet area of an adjacent vertically stacked tray below, and allowing the gas composition to pass upwards through the alkylene oxide absorber.
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