Patents by Inventor Dominicus Maria Rekers
Dominicus Maria Rekers 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: 9365535Abstract: The invention provides a process for the preparation of an alkylene glycol from an alkene. A gas composition from an alkylene oxide reactor is supplied to an alkylene oxide absorber comprising a column of vertically stacked trays or comprising a packed column. Lean absorbent comprising at least 20 wt % water is supplied to the alkylene oxide absorber and is contacted with the gas composition in the presence of one or more catalysts that promote carboxylation and hydrolysis. At least 50% of the alkylene oxide entering the alkylene oxide absorber is converted in the alkylene oxide absorber. Fat absorbent is withdrawn from the absorber, is optionally supplied to finishing reactors and/or a flash vessel or light ends stripper, and is subsequently subjected to dehydration and purification to provide a purified alkylene glycol product stream.Type: GrantFiled: January 13, 2014Date of Patent: June 14, 2016Assignee: Shell Oil CompanyInventors: Eugene Marie Godfried Andre Van Kruchten, Dominicus Maria Rekers, Mathias Jozef Paul Slapak
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Publication number: 20140128620Abstract: The invention provides a process for the preparation of an alkylene glycol from an alkene. A gas composition from an alkylene oxide reactor is supplied to an alkylene oxide absorber comprising a column of vertically stacked trays or comprising a packed column. Lean absorbent comprising at least 20 wt % water is supplied to the alkylene oxide absorber and is contacted with the gas composition in the presence of one or more catalysts that promote carboxylation and hydrolysis. At least 50% of the alkylene oxide entering the alkylene oxide absorber is converted in the alkylene oxide absorber. Fat absorbent is withdrawn from the absorber, is optionally supplied to finishing reactors and/or a flash vessel or light ends stripper, and is subsequently subjected to dehydration and purification to provide a purified alkylene glycol product stream.Type: ApplicationFiled: January 13, 2014Publication date: May 8, 2014Applicant: SHELL OIL COMPANYInventors: Eugene Marie Godfried Andre VAN KRUCHTEN, Dominicus Maria REKERS, Mathias Jozef Paul SLAPAK
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Patent number: 8658841Abstract: The invention provides a process for the preparation of an alkylene glycol from an alkene. A gas composition from an alkylene oxide reactor is supplied to an alkylene oxide absorber comprising a column of vertically stacked trays or comprising a packed column. Lean absorbent comprising at least 20 wt % water is supplied to the alkylene oxide absorber and is contacted with the gas composition in the presence of one or more catalysts that promote carboxylation and hydrolysis. At least 50% of the alkylene oxide entering the alkylene oxide absorber is converted in the alkylene oxide absorber. Fat absorbent is withdrawn from the absorber, is optionally supplied to finishing reactors and/or a flash vessel or light ends stripper, and is subsequently subjected to dehydration and purification to provide a purified alkylene glycol product stream.Type: GrantFiled: August 14, 2008Date of Patent: February 25, 2014Assignee: Shell Oil CompanyInventors: Eugene Marie Godfried Andre Van Kruchten, Dominicus Maria Rekers, Mathias Jozef Paul Slapak
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Patent number: 8409333Abstract: Process for the recovery of ethylene oxide (EO) from fat absorbent (FA) which comprises providing a feed of elevated temperature FA to an EO Stripper, providing a stripping gas feed and contacting the stripping gas feed at elevated temperature with the elevated temperature FA feed, obtaining stripped lean absorbent (LA) and an EO-containing gas, and providing one or more external process stream feeds to the EO Stripper at a location above the elevated temperature FA feed and at a lower temperature with respect to the elevated temperature FA feed thereby concentrating EO in the EO-containing gas. The process can also include one or more impurity removal stages in the form of one or more side draws from the EO Stripper or an EO Stripper Concentrator. The invention also includes an apparatus for performing the process.Type: GrantFiled: August 25, 2009Date of Patent: April 2, 2013Assignee: Shell Oil CompanyInventors: Willem Johan Beekman, Peter Boons, Wiebren Age Miedema, Dominicus Maria Rekers
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Patent number: 8378154Abstract: The invention provides a process for the preparation of an alkylene glycol from an alkene wherein conversion of alkylene oxide to alkylene glycol occurs in an alkylene oxide absorber and optionally in further reactors, and alkylene glycol is extracted from fat absorbent by contacting the fat absorbent with a lean solvent, thereby producing fat solvent, recovering alkylene glycol from the fat solvent and recycling the lean solvent.Type: GrantFiled: April 8, 2009Date of Patent: February 19, 2013Assignee: Shell Oil CompanyInventor: Dominicus Maria Rekers
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Patent number: 8217190Abstract: The invention provides a process for the production of ethylene oxide and, optionally, ethylene glycol. A base is added at various positions downstream of the quench section of an ethylene oxide absorber. This mitigates corrosion in the ethylene oxide and ethylene glycol plant.Type: GrantFiled: January 22, 2008Date of Patent: July 10, 2012Assignee: Shell Oil CompanyInventors: Dominicus Maria Rekers, Abraham Adriaan Smaardijk
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Patent number: 8071798Abstract: Process for the recovery of ethylene oxide (EO) from fat absorbent (FA) which comprises providing a feed of elevated temperature FA to an EO Stripper, providing a stripping gas feed and contacting the stripping gas feed at elevated temperature with the elevated temperature FA feed, obtaining stripped lean absorbent (LA) and an EO-containing gas, and providing one or more external process stream feeds to the EO Stripper at a location above the elevated temperature FA feed and at a lower temperature with respect to the elevated temperature FA feed thereby concentrating EO in the EO-containing gas. The process can also include one or more impurity removal stages in the form of one or more side draws from the EO Stripper or an EO Stripper Concentrator. The invention also includes an apparatus for performing the process.Type: GrantFiled: August 25, 2009Date of Patent: December 6, 2011Assignee: Shell Oil CompanyInventors: Willem Johan Beekman, Peter Boons, Wiebren Age Miedema, Dominicus Maria Rekers
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Patent number: 8049044Abstract: The invention relates to a process for remediation of a fluid contaminated with alkylene oxide, involving contacting the contaminated fluid with an aqueous absorbent to yield a fat absorbent having absorbed fluid, conferring intimate contact of fat absorbent and alkylene oxide and conversion of alkylene oxide; and, an apparatus for remediation of the fluid which has a converter having inlet means connected to the outlet of a fluid absorber for contacting fluid and aqueous absorbent, a holding unit having a volume V for the fat absorbent, and outlet means connected to the inlet of a fluid desorber.Type: GrantFiled: December 18, 2003Date of Patent: November 1, 2011Assignee: Shell Oil CompanyInventors: Alouisius Nicolaas Rene Bos, Dominicus Maria Rekers, Arthur Willibrordus Titus Rots
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Patent number: 8043575Abstract: A reactor system for the oxidation of ethylene to ethylene oxide. The reactor system includes a reactor tube that contains a packed bed of shaped support material that can include a catalytic component. The shaped support material has a hollow cylinder geometric configuration. The reactor system has specific combinations of reactor tube and catalyst system geometries.Type: GrantFiled: April 1, 2004Date of Patent: October 25, 2011Assignee: Shell Oil CompanyInventors: Paul Michael McAllister, Alouisius Nicolaas Renee Bos, Michael Alan Richard, Dominicus Maria Rekers
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Publication number: 20110054224Abstract: The invention provides a process for the preparation of an alkylene glycol from an alkene wherein conversion of alkylene oxide to alkylene glycol occurs in an alkylene oxide absorber and optionally in further reactors, and alkylene glycol is extracted from fat absorbent by contacting the fat absorbent with a lean solvent, thereby producing fat solvent, recovering alkylene glycol from the fat solvent and recycling the lean solvent.Type: ApplicationFiled: April 8, 2009Publication date: March 3, 2011Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.Inventor: Dominicus Maria Rekers
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Publication number: 20100272618Abstract: Process for the recovery of ethylene oxide (EO) from fat absorbent (FA) which comprises providing a feed of elevated temperature FA to an EO Stripper, providing a stripping gas feed and contacting the stripping gas feed at elevated temperature with the elevated temperature FA feed, obtaining stripped lean absorbent (LA) and an EO-containing gas, and providing one or more external process stream feeds to the EO Stripper at a location above the elevated temperature FA feed and at a lower temperature with respect to the elevated temperature FA feed thereby concentrating EO in the EO-containing gas. The process can also include one or more impurity removal stages in the form of one or more side draws from the EO Stripper or an EO Stripper Concentrator. The invention also includes an apparatus for performing the process.Type: ApplicationFiled: August 25, 2009Publication date: October 28, 2010Inventors: Willem Johan Beekman, Peter Boons, Wiebren Age Miedema, Dominicus Maria Rekers
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Publication number: 20100094032Abstract: Process for the recovery of ethylene oxide (EO) from fat absorbent (FA) which comprises providing a feed of elevated temperature FA to an EO Stripper, providing a stripping gas feed and contacting the stripping gas feed at elevated temperature with the elevated temperature FA feed, obtaining stripped lean absorbent (LA) and an EO-containing gas, and providing one or more external process stream feeds to the EO Stripper at a location above the elevated temperature FA feed and at a lower temperature with respect to the elevated temperature FA feed thereby concentrating EO in the EO-containing gas. The process can also include one or more impurity removal stages in the form of one or more side draws from the EO Stripper or an EO Stripper Concentrator. The invention also includes an apparatus for performing the process.Type: ApplicationFiled: August 25, 2009Publication date: April 15, 2010Inventors: Willem Johan BEEKMAN, Peter Boons, Wiebren Age Miedema, Dominicus Maria Rekers
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Patent number: 7598406Abstract: Process for the recovery of ethylene oxide (EO) from fat absorbent (FA) which comprises providing a feed of elevated temperature FA to an EO Stripper, providing a stripping gas feed and contacting the stripping gas feed at elevated temperature with the elevated temperature FA feed, obtaining stripped lean absorbent (LA) and an EO-containing gas, and providing one or more external process stream feeds to the EO Stripper at a location above the elevated temperature FA feed and at a lower temperature with respect to the elevated temperature FA feed thereby concentrating EO in the EO-containing gas. The process can also include one or more impurity removal stages in the form of one or more side draws from the EO Stripper or an EO Stripper Concentrator. The invention also includes an apparatus for performing the process.Type: GrantFiled: May 10, 2006Date of Patent: October 6, 2009Assignee: Shell Oil CompanyInventors: Willem Johan Beekman, Peter Boons, Wiebren Age Miedema, Dominicus Maria Rekers
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Publication number: 20090178560Abstract: The invention provides for the utilization of microchannel apparatus in a process for the cooling of a gaseous mixture comprising ethylene oxide and in a process for the concentration or purification of ethylene oxide.Type: ApplicationFiled: March 24, 2009Publication date: July 16, 2009Inventors: Dominicus Maria REKERS, Mathias Jozef Paul SLAPAK
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Patent number: 7547795Abstract: A high activity and high selectivity silver catalyst comprising silver and, optionally, one or more promoters supported on a suitable support material having the form of a shaped agglomerate. The structure of the shaped agglomerate is that of a hollow cylinder having a relatively small inside (bore) diameter. The catalyst is made by providing the shaped material of a particular geometry and incorporating the catalytic components therein. The catalyst is useful in the epoxidation of ethylene.Type: GrantFiled: July 9, 2007Date of Patent: June 16, 2009Assignee: Shell Oil CompanyInventors: Marek Matusz, Michael Alan Richard, John Robert Lockemeyer, Alouisius Nicolaas Renee Bos, Dominicus Maria Rekers, Donald Reinalda, Randall Clayton Yeates, Paul Michael McAllister
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Publication number: 20090143627Abstract: The invention provides a process for the preparation of an alkylene glycol from an alkene. A gas composition from an alkylene oxide reactor is supplied to an alkylene oxide absorber comprising a column of vertically stacked trays or comprising a packed column. Lean absorbent comprising at least 20 wt % water is supplied to the alkylene oxide absorber and is contacted with the gas composition in the presence of one or more catalysts that promote carboxylation and hydrolysis. At least 50% of the alkylene oxide entering the alkylene oxide absorber is converted in the alkylene oxide absorber. Fat absorbent is withdrawn from the absorber, is optionally supplied to finishing reactors and/or a flash vessel or light ends stripper, and is subsequently subjected to dehydration and purification to provide a purified alkylene glycol product stream.Type: ApplicationFiled: August 14, 2008Publication date: June 4, 2009Inventors: Eugene Marie Godfried Andre Van Kruchten, Dominicus Maria Rekers, Mathias Jozef Paul Slapak
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Publication number: 20080182999Abstract: The invention provides a process for the production of ethylene oxide and, optionally, ethylene glycol. A base is added at various positions downstream of the quench section of an ethylene oxide absorber. This mitigates corrosion in the ethylene oxide and ethylene glycol plant.Type: ApplicationFiled: January 22, 2008Publication date: July 31, 2008Inventors: Dominicus Maria Rekers, Abraham Adriaan Smaardijk
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Publication number: 20080154051Abstract: The present invention relates to an improved epoxidation process and an improved epoxidation reactor. The present invention makes use of a reactor which comprises a plurality of microchannels. Such process microchannels may be adapted such that the epoxidation and optionally other processes can take place in the microchannels and that they are in a heat exchange relation with channels adapted to contain a heat exchange fluid. A reactor comprising such process microchannels is referred to as a “microchannel reactor”. The invention also provides a method of installing an epoxidation catalyst in a microchannel reactor. The invention also provides a method of preparing an epoxidation catalyst. The invention also provides an epoxidation catalyst. The invention also provides a certain process for the epoxidation of an olefin and a process for the preparation of a chemical derivable from an olefin oxide. The invention also provides a microchannel reactor.Type: ApplicationFiled: December 20, 2006Publication date: June 26, 2008Inventors: Jeroen Willem Bolk, Alouisius Nicolaas Renee Bos, Wayne Errol Evans, John Robert Lockemeyer, Paul Michael Mcallister, Bernardus Franciscus Josef Marie Ramakers, Dominicus Maria Rekers, Mathias Jozef Paul Slapak
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Publication number: 20080154052Abstract: The present invention relates to an improved epoxidation process and an improved epoxidation reactor. The present invention makes use of a reactor which comprises a plurality of microchannels. Such process microchannels may be adapted such that the epoxidation and optionally other processes can take place in the microchannels and that they are in a heat exchange relation with channels adapted to contain a heat exchange fluid. A reactor comprising such process microchannels is referred to as a “microchannel reactor”. The invention also provides a method of installing an epoxidation catalyst in a microchannel reactor. The invention also provides a method of preparing an epoxidation catalyst. The invention also provides an epoxidation catalyst. The invention also provides a certain process for the epoxidation of an olefin and a process for the preparation of a chemical derivable from an olefin oxide. The invention also provides a microchannel reactor.Type: ApplicationFiled: December 20, 2006Publication date: June 26, 2008Inventors: Jeroen Willem Bolk, Alouisius Nicolaas Renee Bos, Wayne Errol Evans, John Robert Lockemeyer, Paul Michael McAllister, Bernardus Franciscus Josef Marie Ramakers, Dominicus Maria Rekers, Mathias Jozef Paul Slapak
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Patent number: 7259129Abstract: A high activity and high selectivity silver catalyst comprising silver and, optionally, one or more promoters supported on a suitable support material having the form of a shaped agglomerate. The structure of the shaped agglomerate is that of a hollow cylinder having a relatively small inside (bore) diameter. The catalyst is made by providing the shaped material of a particular geometry and incorporating the catalytic components therein. The catalyst is useful in the epoxidation of ethylene.Type: GrantFiled: April 1, 2004Date of Patent: August 21, 2007Assignee: Shell Oil CompanyInventors: Marek Matusz, Michael Alan Richard, John Robert Lockemeyer, Alouisius Nicolaas Renee Bos, Dominicus Maria Rekers, Donald Reinalda, Randall Clayton Yeates