Patents by Inventor Wayne Errol Evans
Wayne Errol Evans has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11655230Abstract: 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.Type: GrantFiled: December 6, 2018Date of Patent: May 23, 2023Assignee: SHELL USA, INC.Inventors: Roel Guillaume Hubertus Leonardus Bastings, Jesse Raymond Black, Vesna Bojovic, Wayne Errol Evans
-
Patent number: 11498911Abstract: 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.Type: GrantFiled: December 6, 2018Date of Patent: November 15, 2022Assignee: SHELL USA, INC.Inventors: Roel Guillaume Hubertus Leonardus Bastings, Jesse Raymond Black, Vesna Bojovic, Wayne Errol Evans, Gregory John Ward
-
Patent number: 11389776Abstract: The invention provides a reaction system for the production of ethylene carbonate and/or ethylene glycol. The system having a guard bed system upstream of a catalytic EO reactor. The guard bed system having a feed line supplying a gaseous feed to be treated 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.Type: GrantFiled: September 22, 2020Date of Patent: July 19, 2022Assignee: SHELL USA, INC.Inventors: Jesse Raymond Black, Gregory John Ward, Roel Guillaume Hubertus Leonardus Bastings, David Allen Van Kleeck, Wayne Errol Evans
-
Publication number: 20210198227Abstract: 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.Type: ApplicationFiled: December 6, 2018Publication date: July 1, 2021Inventors: Roel Guillaume Hubertus Leonardus BASTINGS, Jesse Raymond BLACK, Vesna BOJOVIC, Wayne Errol EVANS, Gregory John WARD
-
Patent number: 11000819Abstract: 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.Type: GrantFiled: December 13, 2016Date of Patent: May 11, 2021Assignee: Shell Oil CompanyInventors: Jesse Raymond Black, Gregory John Ward, Roel Guillaume Hubertus Leonardus Bastings, David Allen Van Kleeck, Wayne Errol Evans
-
Publication number: 20210001298Abstract: The invention provides a reaction system for the production of ethylene carbonate and/or ethylene glycol. The system having a guard bed system upstream of a catalytic EO reactor. The guard bed system having a feed line supplying a gaseous feed to be treated 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.Type: ApplicationFiled: September 22, 2020Publication date: January 7, 2021Inventors: Jesse Raymond BLACK, Gregory John WARD, Roel Guillaume Hubertus Leonardus BASTINGS, David Allen VAN KLEECK, Wayne Errol EVANS
-
Publication number: 20200392101Abstract: 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.Type: ApplicationFiled: December 6, 2018Publication date: December 17, 2020Inventors: Roel Guillaume Hubertus Leonardus BASTINGS, Jesse Raymond BLACK, Vesna BOJOVIC, Wayne Errol EVANS
-
Patent number: 10526300Abstract: Processes for reducing the amount of a gaseous iodide-containing impurity present in a recycle gas stream used in the production of ethylene oxide, in particular alkyl iodide and vinyl iodide impurities, are provided. Processes for producing ethylene oxide, ethylene carbonate and/or ethylene glycol, and associated reaction systems are similarly provided.Type: GrantFiled: December 13, 2016Date of Patent: January 7, 2020Assignee: SHELL OIL COMPANYInventors: Wayne Errol Evans, Jesse Raymond Black, Michael Francis Lemanski
-
Patent number: 10525409Abstract: Processes for reducing the amount of a gaseous iodide-containing impurity present in a recycle gas stream used in the production of ethylene oxide, in particular a vinyl iodide impurity, are provided. Processes for producing ethylene oxide, ethylene carbonate and/or ethylene glycol, and associated reaction systems are similarly provided.Type: GrantFiled: December 13, 2016Date of Patent: January 7, 2020Assignee: SHELL OIL COMPANYInventors: Michael Francis Lemanski, Wayne Errol Evans
-
Patent number: 10450287Abstract: Processes for reducing the amount of a gaseous iodide-containing impurity present in a recycle gas stream used in the production of ethylene oxide, in particular an alkyl iodide impurity, are provided. Processes for producing ethylene oxide, ethylene carbonate and/or ethylene glycol, and associated reaction systems are similarly provided.Type: GrantFiled: December 13, 2016Date of Patent: October 22, 2019Assignee: SHELL OIL COMPANYInventors: Wayne Errol Evans, Jesse Raymond Black
-
Publication number: 20180370935Abstract: Processes for reducing the amount of a gaseous iodide-containing impurity present in a recycle gas stream used in the production of ethylene oxide, in particular alkyl iodide and vinyl iodide impurities, are provided. Processes for producing ethylene oxide, ethylene carbonate and/or ethylene glycol, and associated reaction systems are similarly provided.Type: ApplicationFiled: December 13, 2016Publication date: December 27, 2018Inventors: Wayne Errol EVANS, Jesse Raymond BLACK, Michael Francis LEMANSKI
-
Publication number: 20180370936Abstract: Processes for reducing the amount of a gaseous iodide-containing impurity present in a recycle gas stream used in the production of ethylene oxide, in particular an alkyl iodide impurity, are provided. Processes for producing ethylene oxide, ethylene carbonate and/or ethylene glycol, and associated reaction systems are similarly provided.Type: ApplicationFiled: December 13, 2016Publication date: December 27, 2018Inventors: Wayne Errol EVANS, Jesse Raymond BLACK
-
Publication number: 20180369752Abstract: Processes for reducing the amount of a gaseous iodide-containing impurity present in a recycle gas stream used in the production of ethylene oxide, in particular a vinyl iodide impurity, are provided. Processes for producing ethylene oxide, ethylene carbonate and/or ethylene glycol, and associated reaction systems are similarly provided.Type: ApplicationFiled: December 13, 2016Publication date: December 27, 2018Applicant: Shell Oil CompanyInventors: Michael Francis LEMANSKI, Wayne Errol EVANS
-
Publication number: 20180369773Abstract: 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.Type: ApplicationFiled: December 13, 2016Publication date: December 27, 2018Inventors: Jesse Raymond BLACK, Gregory John WARD, Roel Guillaume Hubertus Leonardus BASTINGS, David Allen VAN KLEECK, Wayne Errol EVANS
-
Patent number: 9527787Abstract: The invention provides a reaction system for the production of an alkylene carbonate and/or an alkylene glycol comprising: an epoxidation zone containing an epoxidation catalyst located within an epoxidation reactor; a carboxylation zone containing an iodide-containing carboxylation catalyst located within an alkylene oxide absorber; and one or more purification zones containing a purification absorbent capable of reducing the quantity of iodide-containing impurities in a feed comprising a recycle gas, which purification zones are located upstream from the epoxidation zone; and a process for the production of an alkylene carbonate and/or an alkylene glycol.Type: GrantFiled: May 2, 2012Date of Patent: December 27, 2016Assignee: Shell Oil CompanyInventors: Wayne Errol Evans, Marek Matusz, Eugene Marie Godfried Andre Van Kruchten, Martin Lysle Hess
-
Patent number: 9174928Abstract: Processes for the epoxidation of ethylene are provided in which, following start-up, an epoxidation catalyst is contacted with a feed comprising ethylene, oxygen, carbon dioxide in an amount below 2.0 vol. %, and a chloride moderator to achieve a desired work rate at a first operating temperature T1. The composition of the feed is subsequently adjusted (e.g., by decreasing the ethylene concentration, decreasing the oxygen concentration, increasing the carbon dioxide concentration and/or adjusting the concentration of the chloride moderator) so as to increase the first operating temperature T1 to a second operating temperature T2 while maintaining the desired work rate. As the catalyst activity declines, the composition of the feed is further adjusted so as to maintain the desired work rate at the second operating temperature T2.Type: GrantFiled: April 26, 2012Date of Patent: November 3, 2015Assignee: Shell Oil CompanyInventors: Wayne Errol Evans, Jeffrey Michael Kobe, Marek Matusz
-
Patent number: 8858893Abstract: The invention provides a reaction system for the production of an alkylene carbonate comprising: an epoxidation zone containing an epoxidation catalyst located within an epoxidation reactor; a carboxylation zone containing an bromide-containing carboxylation catalyst located within an alkylene oxide absorber; and one or more purification zones containing a purification absorbent capable of reducing the quantity of bromide-containing impurities in a feed comprising a recycle gas, which purification zones are located upstream from the epoxidation zone; and a process for the production of an alkylene carbonate and an alkylene glycol.Type: GrantFiled: August 22, 2012Date of Patent: October 14, 2014Assignee: Shell Oil CompanyInventors: Wayne Errol Evans, Martin Lysle Hess, Marek Matusz, Eugene Marie Godfried Andre Van Kruchten
-
Patent number: 8859792Abstract: A process for the production of an olefin oxide, which process comprises reacting a feed comprising an olefin and oxygen in a reactor tube in the presence of a silver-containing catalyst, wherein the presence of water in the catalyst bed is controlled such that the ratio of the partial pressure of water (PPH2O) divided by the vapor pressure of water (VPH2O) is less than 0.006, preferably less than 0.004.Type: GrantFiled: July 25, 2013Date of Patent: October 14, 2014Assignee: Shell Oil CompanyInventors: Wayne Errol Evans, Paul Michael McAllister, Randall Clayton Yeates, Jeffrey Michael Kobe
-
Patent number: 8742146Abstract: The present invention relates to a process for improving the overall selectivity of an EO process for converting ethylene to ethylene oxide utilizing a highly selective EO silver catalyst containing a rhenium promoter wherein following normal operation a hard strip of the chloride on the surface of the catalyst is conducted in order to remove a portion of the chlorides on the surface of the catalyst. Following the hard strip, the catalyst is optionally re-optimized. Surprisingly, it has been found that the selectivity of the catalyst following the hard strip may be substantially higher than the selectivity prior to the hard strip.Type: GrantFiled: December 2, 2011Date of Patent: June 3, 2014Assignee: Shell Oil CompanyInventors: Martin Lysle Hess, Wayne Errol Evans, Jeffery Michael Kobe, Marek Matusz
-
Patent number: 8742147Abstract: The present invention relates to a process for improving the overall selectivity of an EO process for converting ethylene to ethylene oxide utilizing a highly selective EO silver catalyst containing a rhenium promoter wherein following normal operation a chloride strip of the chloride on the surface of the catalyst is conducted in order to remove a portion of the chlorides on the surface of the catalyst. The chloride strip involves the addition of certain saturated hydrocarbons to the feed. Following the chloride strip, the catalyst is optionally re-optimized.Type: GrantFiled: December 2, 2011Date of Patent: June 3, 2014Assignee: Shell Oil CompanyInventors: Wayne Errol Evans, Marek Matusz, Paul Michael McAllister