Patents by Inventor Antonius Gijsbertus Johannes Kloth
Antonius Gijsbertus Johannes Kloth 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).
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Patent number: 9902660Abstract: The invention provides a process for the preparation of an olefinic product, the process comprising the steps of: (a) reacting an oxygenate feedstock, comprising oxygenate, in an oxygenate reaction zone in the presence of a catalyst comprising a molecular sieve, at a temperature in the range of from 350 to 1000° C.Type: GrantFiled: December 13, 2013Date of Patent: February 27, 2018Assignee: SHELL OIL COMPANYInventors: Antonius Gijsbertus Johannes Kloth, Sivakumar Sadasivan Vijayakumari, Jeroen Van Westrenen
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Patent number: 9878963Abstract: The invention relates to process for the preparation of an olefinic product comprising ethylene and/or propylene from an oxygenate, the process comprising the following steps: a) an oxygenate conversion step wherein a gaseous effluent comprising olefins and a water-soluble oxygenate is obtained; b) separation of water from the effluent; c) compression of the effluent; d) acid gas removal from the compressed gaseous effluent obtained in step c), wherein the compressed gaseous effluent is treated with a caustic solution in a caustic tower; and e) separating the olefinic product from the gaseous effluent treated in step d), wherein, in a final stage in the caustic tower, water-depleted compressed gaseous effluent is treated with a water stream that is essentially free of water-soluble oxygenate and a spent water stream comprising caustic and water-soluble oxygenate is obtained, which spent water stream is withdrawn from the process.Type: GrantFiled: December 24, 2013Date of Patent: January 30, 2018Inventors: Antonius Gijsbertus Johannes Kloth, Sivakumar Sadasivan Vijayakumari, Jeroen Van Westrenen
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Patent number: 9828305Abstract: The invention provides a process for the preparation of an olefinic product, comprising: (a) reacting an oxygenate feedstock, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce a reaction effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the reaction effluent stream by means of an indirect heat exchange to a temperature greater than the dew point temperature of reaction effluent stream; (c) further rapidly cooling the reaction effluent stream to a temperature lower than the dew point temperature of the reaction effluent stream by direct injection of an aqueous liquid into the reaction effluent stream, to form a first quench effluent stream; and (d) separating the first quench effluent stream into a first liquid quench effluent stream and a first gaseous quench effluent stream, comprising the olefinic product.Type: GrantFiled: October 29, 2013Date of Patent: November 28, 2017Assignee: SHELL OIL COMPANYInventors: Antonius Gijsbertus Johannes Kloth, Sivakumar Sadasivan Vijayakumari, Jeroen Van Westrenen
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Patent number: 9828306Abstract: The invention provides a process for preparing an olefin, comprising: (a) reacting an oxygenate, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce a effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the reaction effluent stream by an indirect heat exchange to a temperature greater than the dew point temperature of effluent stream; (c) further rapidly cooling the effluent stream to a temperature lower than the dew point temperature of the effluent stream by direct injection of an aqueous liquid into the effluent stream, to form a quench effluent stream; and (d) passing the quench effluent stream into a quench tower and contacting the quench effluent stream with a second aqueous liquid in the presence of at least one set of internals, to produce a quench tower gaseous stream comprising the olefin.Type: GrantFiled: October 29, 2013Date of Patent: November 28, 2017Assignee: SHELL OIL COMPANYInventors: Antonius Gijsbertus Johannes Kloth, Sivakumar Sadasivan Vijayakumari, Jeroen Van Westrenen
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Patent number: 9828312Abstract: The invention removes oxygenate from an olefin rich gas stream, the process comprising: (a) reacting an oxygenate, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce an effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the effluent stream and contacting it with a first aqueous stream in a quench zone to produce an aqueous stream and an olefin rich gas stream; (c) compressing the olefin rich gas stream in one or more compressors in series to produce a compressed gas stream, (d) cooling the compressed gas stream and separating condensed material from said gas stream after each of the one or more compressors.Type: GrantFiled: October 29, 2013Date of Patent: November 28, 2017Assignee: SHELL OIL COMPANYInventors: Antonius Gijsbertus Johannes Kloth, Sivakumar Sadasivan Vijayakumari, Jeroen Van Westrenen
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Publication number: 20160355448Abstract: The invention provides a process for the preparation of an olefinic product, the process comprising the steps of: (a) reacting an oxygenate feedstock, comprising oxygenate, in an oxygenate reaction zone in the presence of a catalyst comprising a molecular sieve, at a temperature in the range of from 350 to 1000° C.Type: ApplicationFiled: December 13, 2013Publication date: December 8, 2016Inventors: Antonius Gijsbertus Johannes KLOTH, Sivakumar SADASIVAN VIJAYAKUMARI, Jeroen VAN WESTRENEN
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Publication number: 20150353440Abstract: The invention relates to process for the preparation of an olefinic product comprising ethylene and/or propylene from an oxygenate, the process comprising the following steps: a) an oxygenate conversion step wherein a gaseous effluent comprising olefins and a water-soluble oxygenate is obtained; b) separation of water from the effluent; c) compression of the effluent; d) acid gas removal from the compressed gaseous effluent obtained in step c), wherein the compressed gaseous effluent is treated with a caustic solution in a caustic tower; and e) separating the olefinic product from the gaseous effluent treated in step d), wherein, in a final stage in the caustic tower, water-depleted compressed gaseous effluent is treated with a water stream that is essentially free of water-soluble oxygenate and a spent water stream comprising caustic and water-soluble oxygenate is obtained, which spent water stream is withdrawn from the process.Type: ApplicationFiled: December 24, 2013Publication date: December 10, 2015Applicant: SHELL OIL COMPANYInventors: Antonius Gijsbertus Johannes KLOTH, Sivakumar SADASIVAN VIJAYAKUMARI, Jeroen VAN WESTRENEN
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Publication number: 20150299067Abstract: The invention provides a process for the preparation of an olefinic product, comprising: (a) reacting an oxygenate feedstock, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce a reaction effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the reaction effluent stream by means of an indirect heat exchange to a temperature greater than the dew point temperature of reaction effluent stream; (c) further rapidly cooling the reaction effluent stream to a temperature lower than the dew point temperature of the reaction effluent stream by direct injection of an aqueous liquid into the reaction effluent stream, to form a first quench effluent stream; and (d) separating the first quench effluent stream into a first liquid quench effluent stream and a first gaseous quench effluent stream, comprising the olefinic product.Type: ApplicationFiled: October 29, 2013Publication date: October 22, 2015Inventors: Antonius Gijsbertus Johannes Kloth, Sivakumar Sadasivan Vijayakumari, Jeroen Van Westrenen
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Publication number: 20150291484Abstract: The invention provides a process for preparing an olefin, comprising: (a) reacting an oxygenate, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce a effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the reaction effluent stream by an indirect heat exchange to a temperature greater than the dew point temperature of effluent stream; (c) further rapidly cooling the effluent stream to a temperature lower than the dew point temperature of the effluent stream by direct injection of an aqueous liquid into the effluent stream, to form a quench effluent stream; and (d) passing the quench effluent stream into a quench tower and contacting the quench effluent stream with a second aqueous liquid in the presence of at least one set of internals, to produce a quench tower gaseous stream comprising the olefin.Type: ApplicationFiled: October 29, 2013Publication date: October 15, 2015Inventors: Antonius Gijsbertus Johannes Kloth, Sivakumar Sadasivan Vijayakumari, Jeroen Van Westrenen
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Publication number: 20150291488Abstract: The invention removes oxygenate from an olefin rich gas stream, the process comprising: (a) reacting an oxygenate, in a reaction zone in the presence of a molecular sieve catalyst, at a temperature from 350 to 1000° C., to produce an effluent stream, comprising at least oxygenate, olefin, water and acidic by-products; (b) cooling the effluent stream and contacting it with a first aqueous stream in a quench zone to produce an aqueous stream and an olefin rich gas stream; (c) compressing the olefin rich gas stream in one or more compressors in series to produce a compressed gas stream, (d) cooling the compressed gas stream and separating condensed material from said gas stream after each of the one or more compressors.Type: ApplicationFiled: October 29, 2013Publication date: October 15, 2015Inventors: Antonius Gijsbertus Johannes Kloth, Sivakumar Sadasivan Vijayakumari, Jeroen Van Westrenen
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Patent number: 7374663Abstract: A process for the preparation of lower olefins from a heavy hydrocarbon feedstock by vaporizing said heavy hydrocarbon feedstock with steam in a nozzle wherein a two-phase mixture is passed through a device having a frusto-conically-shaped element which is capable of inducing a gentle swirl pattern to a liquid-containing stream, which device is connected to the feed inlet pipe of the mixing nozzle. This swirl-inducing device effects a 90° bending of the flow direction of the hydrocarbon feedstock while simultaneously effecting a swirl pattern of the liquid part thereof, thereby forcing the liquid against the wall of the feed inlet pipe extending downwardly to the mixing nozzle with such velocity component perpendicular to the tube's longitudinal axis to create an annular flow pattern as the mixture enters the nozzle and the vaporized hydrocarbon feedstock is subjected to a cracking treatment.Type: GrantFiled: August 17, 2004Date of Patent: May 20, 2008Assignee: Shell Oil CompanyInventors: Krishnamoorthy Chandrasekharan, Antonius Gijsbertus Johannes Kloth, Jeroen Van Westrenen
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Patent number: 6797238Abstract: Apparatus for the vaporization of a heavy hydrocarbon feedstock with steam includes a frusto-conically-shaped element which is capable of inducing a gentle swirl pattern to a liquid-containing stream, which device is connected to the feed inlet pipe of the mixing nozzle. This swirl-inducing device effects a 90° bending of the flow direction of the hydrocarbon feedstock while simultaneously effecting a swirl pattern of the liquid part thereof, thereby forcing the liquid against the wall of the feed inlet pipe extending downwardly to the mixing nozzle with such velocity component perpendicular to the tube's longitudinal axis that an annular flow pattern is re-established.Type: GrantFiled: May 8, 2001Date of Patent: September 28, 2004Assignee: Shell Oil CompanyInventors: Krishnamoorthy Chandrasekharan, Antonius Gijsbertus Johannes Kloth, Jeroen Van Westrenen
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Publication number: 20020028977Abstract: Apparatus for the vaporization of a heavy hydrocarbon feedstock with steam includes a frusto-conically-shaped element which is capable of inducing a gentle swirl pattern to a liquid-containing stream, which device is connected to the feed inlet pipe of the mixing nozzle. This swirl-inducing device effects a 90° bending of the flow direction of the hydrocarbon feedstock while simultaneously effecting a swirl pattern of the liquid part thereof, thereby forcing the liquid against the wall of the feed inlet pipe extending downwardly to the mixing nozzle with such velocity component perpendicular to the tube's longitudinal axis that an annular flow pattern is re-established.Type: ApplicationFiled: May 8, 2001Publication date: March 7, 2002Inventors: Krishnamoorthy Chandrasekharan, Antonius Gijsbertus Johannes Kloth, Jeroen Van Westrenen