Patents by Inventor Martinus J. Almering
Martinus J. Almering 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: 11932597Abstract: A process for converting isobutane to propylene. The process including dehydrogenating isobutane to produce a mixed product stream comprising isobutane and isobutene, skeletal isomerizing the mixed product stream comprising isobutane and isobutene to convert isobutene to n-butenes including 1-butene and 2-butenes and to recover a skeletal isomerization reaction product comprising isobutane, isobutene, butadiene, 1-butene, and 2-butenes. The process further including fractionating the skeletal isomerization reaction product, isomerizing the 1-butene contained therein to 2-butenes, recovering an overhead fraction comprising isobutane, a side draw fraction comprising isobutane and isobutene, and a bottoms fraction comprising 2-butenes, and combining the bottoms fraction with ethylene and converting the ethylene and 2-butenes to produce a reaction effluent comprising propylene.Type: GrantFiled: March 10, 2023Date of Patent: March 19, 2024Assignee: LUMMUS TECHNOLOGY LLCInventors: Martinus J. Almering, Kerman N. Dukandar, Oliver Chen
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Publication number: 20230286886Abstract: A process for converting isobutane to propylene. The process including dehydrogenating isobutane to produce a mixed product stream comprising isobutane and isobutene, skeletal isomerizing the mixed product stream comprising isobutane and isobutene to convert isobutene to n-butenes including 1-butene and 2-butenes and to recover a skeletal isomerization reaction product comprising isobutane, isobutene, butadiene, 1-butene, and 2-butenes. The process further including fractionating the skeletal isomerization reaction product, isomerizing the 1-butene contained therein to 2-butenes, recovering an overhead fraction comprising isobutane, a side draw fraction comprising isobutane and isobutene, and a bottoms fraction comprising 2-butenes, and combining the bottoms fraction with ethylene and converting the ethylene and 2-butenes to produce a reaction effluent comprising propylene.Type: ApplicationFiled: March 10, 2023Publication date: September 14, 2023Applicant: LUMMUS TECHNOLOGY LLCInventors: Martinus J. Almering, Kerman N. Dukandar, Oliver Chen
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Patent number: 9315741Abstract: A process for reducing the concentration of benzene in a hydrocarbon stream, the process including: fractionating a reformate to form a benzene concentrate fraction comprising benzene and other C6 hydrocarbons, and a heavies fraction comprising C7+ hydrocarbons; and hydrogenating the benzene concentrate fraction to form a hydrocarbon fraction having a reduced benzene concentration.Type: GrantFiled: September 8, 2008Date of Patent: April 19, 2016Assignee: Catalytic Distillation TechnologiesInventors: Montri Vichailak, Purvis K. Ho, Martinus J. Almering, Arvids Judzis, Jr., Willibrord A. Groten, Lawrence A. Smith, Jr., Yongqiang Xu
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Patent number: 8395002Abstract: A process for recovering benzene, the process including: feeding hydrogen and a hydrocarbon fraction comprising benzene, components lighter than benzene, components heavier than benzene, and diolefins to a catalytic distillation reactor system comprising at least one reaction zone comprising a hydrogenation catalyst; concurrently in the catalytic distillation reactor system: contacting the diolefins and hydrogen in the presence of the hydrogenation catalyst to selectively hydrogenate at least a portion of the diolefins; and fractionating the hydrocarbon fraction to form a fraction comprising benzene and other C6 hydrocarbons, and a heavies fraction comprising C7+ hydrocarbons; recovering the heavies fraction from the first catalytic distillation reactor system as a bottoms fraction; and withdrawing the fraction comprising benzene and other C6 hydrocarbons from the catalytic distillation reactor system as a benzene concentrate fraction.Type: GrantFiled: March 9, 2010Date of Patent: March 12, 2013Assignee: Catalytic Distillation TechnologiesInventors: Martinus J. Almering, Purvis K. Ho, Mitchell E. Loescher, Montri Vichailak
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Patent number: 7982086Abstract: A process for fractionating isobutene from normal butenes, including: introducing hydrogen and a feed stream comprising isobutene, 1-butene, and 2-butene into a first column including a reaction zone containing a hydroisomerization catalyst operating at a first pressure and concurrently: (i) converting at least a portion of the 1-butene to 2-butene, and (ii) separating isobutene from the 2-butene; recovering a first overheads fraction comprising isobutene from the first column; recovering a first bottoms fraction comprising isobutene, 2-butene, and unreacted 1-butene from the first column; introducing the first bottoms fraction into a top portion of a second column comprising a fractionation column operating at a second pressure lower than the first pressure; separating the first bottoms into a second overheads fraction comprising isobutene and 1-butene and a second bottoms fraction comprising 2-butene; compressing the second overheads fraction; and introducing the compressed second overheads fraction to a loType: GrantFiled: February 3, 2009Date of Patent: July 19, 2011Assignee: Catalytic Distillation TechnologiesInventor: Martinus J. Almering
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Publication number: 20100228063Abstract: A process for recovering benzene, the process including: feeding hydrogen and a hydrocarbon fraction comprising benzene, components lighter than benzene, components heavier than benzene, and diolefins to a catalytic distillation reactor system comprising at least one reaction zone comprising a hydrogenation catalyst; concurrently in the catalytic distillation reactor system: contacting the diolefins and hydrogen in the presence of the hydrogenation catalyst to selectively hydrogenate at least a portion of the diolefins; and fractionating the hydrocarbon fraction to form a fraction comprising benzene and other C6 hydrocarbons, and a heavies fraction comprising C7+ hydrocarbons; recovering the heavies fraction from the first catalytic distillation reactor system as a bottoms fraction; and withdrawing the fraction comprising benzene and other C6 hydrocarbons from the catalytic distillation reactor system as a benzene concentrate fraction.Type: ApplicationFiled: March 9, 2010Publication date: September 9, 2010Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: Martinus J. Almering, Purvis K. Ho, Mitchell E. Loescher, Montri Vichailak
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Publication number: 20100197987Abstract: A process for fractionating isobutene from normal butenes, including: introducing hydrogen and a feed stream comprising isobutene, 1-butene, and 2-butene into a first column including a reaction zone containing a hydroisomerization catalyst operating at a first pressure and concurrently: (i) converting at least a portion of the 1-butene to 2-butene, and (ii) separating isobutene from the 2-butene; recovering a first overheads fraction comprising isobutene from the first column; recovering a first bottoms fraction comprising isobutene, 2-butene, and unreacted 1-butene from the first column; introducing the first bottoms fraction into a top portion of a second column comprising a fractionation column operating at a second pressure lower than the first pressure; separating the first bottoms into a second overheads fraction comprising isobutene and 1-butene and a second bottoms fraction comprising 2-butene; compressing the second overheads fraction; and introducing the compressed second overheads fraction to a loType: ApplicationFiled: February 3, 2009Publication date: August 5, 2010Applicant: Catalytic Distillation TechnologiesInventor: Martinus J. Almering
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Publication number: 20100063334Abstract: A process for reducing the concentration of benzene in a hydrocarbon stream, the process including: fractionating a reformate to form a benzene concentrate fraction comprising benzene and other C6 hydrocarbons, and a heavies fraction comprising C7+ hydrocarbons; and hydrogenating the benzene concentrate fraction to form a hydrocarbon fraction having a reduced benzene concentration.Type: ApplicationFiled: September 8, 2008Publication date: March 11, 2010Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: Montri Vichailak, Purvis K. Ho, Martinus J. Almering, Arvids Judzis, JR., Willibrord A. Groten, Lawrence A. Smith, JR., Yongqiang Xu
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Patent number: 7153415Abstract: A light cracked naphtha is treated to convert mercaptans to sulfides and saturate dienes and then subjected to destructive hydrodesulfurization (HDS) to convert the organic sulfur compounds to hydrogen sulfide. The recombinant mercaptans formed by reaction of hydrogen sulfide and olefins at the outlet of the HDS are generally heavier than the light cracked naphtha is fractionated in admixture with a heavy cracked naphtha. A low sulfur content light cracked naphtha is produced as an overheads and the major portion of the mercaptans leave with heavy cracked naphtha as bottoms. It also advantageous to pass the heavy cracked naphtha through the HDS in admixture with the light cracked naphtha, since the recombinant mercaptans formed with the heavy cracked naphtha olefins (which displace some of the lower mercaptans which would form the light cracked naphtha olefins) will be even higher boiling and easier to separate by fractionation.Type: GrantFiled: November 1, 2002Date of Patent: December 26, 2006Assignee: Catalytic Distillation TechnologiesInventors: Gary G. Podrebarac, Willibrord A. Groten, Manoj Som, Martinus J. Almering
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Publication number: 20040000506Abstract: A light cracked naphtha is treated to convert mercaptans to sulfides and saturate dienes and then subjected to destructive hydrodesulfurization (HDS) to convert the organic sulfur compounds to hydrogen sulfide. The recombinant mercaptans formed by reaction of hydrogen sulfide and olefins at the outlet of the HDS are generally heavier than the light cracked naphtha is fractionated in admixture with a heavy cracked naphtha. A low sulfur content light cracked naphtha is produced as an overheads and the major portion of the mercaptans leave with heavy cracked naphtha as bottoms. It also advantageous to pass the heavy cracked naphtha through the HDS in admixture with the light cracked naphtha, since the recombinant mercaptans formed with the heavy cracked naphtha olefins (which displace some of the lower mercaptans which would form the light cracked naphtha olefins) will be even higher boiling and easier to separate by fractionation.Type: ApplicationFiled: November 1, 2002Publication date: January 1, 2004Applicant: CATALYTIC DISTILLATION TECHNOLOGIESInventors: Gary G. Podrebarac, Willibrord A. Groten, Manoj Som, Martinus J. Almering