Patents by Inventor Douglas A. Nafis
Douglas A. Nafis 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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Publication number: 20160168054Abstract: An integrated process for gasoline production is described. The process includes introducing a feed comprising n-C5 hydrocarbons into a disproportionation reaction zone in the presence of a disproportionation catalyst to form a disproportionation mixture comprising iso-C4 and C6+ disproportionation products and unreacted n-C5 hydrocarbons. An iso-C4 hydrocarbon stream and an olefin feed are introduced into an alkylation reaction zone in the presence of an alkylation catalyst to produce an alkylation mixture comprising alkylate and unreacted iso-C4 paraffins. The disproportionation mixture and the alkylation mixture are combined, and the combined mixture is separated into at least a stream comprising the alkylate product, an iso-C4 stream, and an unreacted n-C5 hydrocarbon stream. The iso-C4 stream is recycled to the alkylation reaction zone, and the unreacted n-C5 hydrocarbon stream is recycled to the disproportionation reaction zone. The stream comprising the alkylate product is recovered.Type: ApplicationFiled: December 11, 2014Publication date: June 16, 2016Inventors: Tom N. Kalnes, Stuart Smith, Douglas A. Nafis, Alakananda Bhattacharyya, Bryan K. Glover, Susie C. Martins
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Patent number: 9328036Abstract: A hydrocarbon conversion process is described. The process includes contacting a hydrocarbon feed with an acidic catalyst under hydrocarbon conversion conditions in a hydrocarbon conversion zone. The hydrocarbon feed reacts to form a mixture comprising reaction products, the acidic catalyst, and deactivated acidic catalyst containing conjunct polymer. The mixture is separated into at least two streams, a first stream comprising the reaction products and a second stream comprising the deactivated acidic catalyst. The reaction products are recovered. The deactivated acidic catalyst is contacted with at least one silane or borane compound in a regeneration zone under regeneration conditions, the conjunct polymer reacting with the at least one silane or borane compound resulting in a catalyst phase and an organic phase containing the conjunct polymer and at least one silyl or boryl compound.Type: GrantFiled: May 5, 2014Date of Patent: May 3, 2016Assignee: UOP LLCInventors: Susie C. Martins, Erin M. Broderick, Douglas A. Nafis, Kaitlin M. DeSalvo, Stuart Smith, Alakananda Bhattacharyya
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Patent number: 9221043Abstract: A method of regenerating an acidic catalyst is described. A borane compound is contacted with an acidic catalyst that contains conjunct polymer, which releases the conjunct polymer from the acidic catalyst. The acidic catalyst can then be re-activated with acid. The conjunct polymer can be separated from the borane compound, and the borane compound can be recycled.Type: GrantFiled: May 5, 2014Date of Patent: December 29, 2015Assignee: UOP LLCInventors: Erin M. Broderick, Alakananda Bhattacharyya, Susie C. Martins, Kaitlin M. DeSalvo, Douglas A. Nafis
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Publication number: 20150315095Abstract: A hydrocarbon conversion process is described. The process includes contacting a hydrocarbon feed with an acidic catalyst under hydrocarbon conversion conditions in a hydrocarbon conversion zone. The hydrocarbon feed reacts to form a mixture comprising reaction products, the acidic catalyst, and deactivated acidic catalyst containing conjunct polymer. The mixture is separated into at least two streams, a first stream comprising the reaction products and a second stream comprising the deactivated acidic catalyst. The reaction products are recovered. The deactivated acidic catalyst is contacted with at least one silane or borane compound in a regeneration zone under regeneration conditions, the conjunct polymer reacting with the at least one silane or borane compound resulting in a catalyst phase and an organic phase containing the conjunct polymer and at least one silyl or boryl compound.Type: ApplicationFiled: May 5, 2014Publication date: November 5, 2015Applicant: UOP LLCInventors: Susie C. Martins, Erin M. Broderick, Douglas A. Nafis, Kaitlin M. DeSalvo, Stuart Smith, Alakananda Bhattacharyya
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Publication number: 20150314281Abstract: A method of regenerating an acidic catalyst is described. A borane compound is contacted with an acidic catalyst that contains conjunct polymer, which releases the conjunct polymer from the acidic catalyst. The acidic catalyst can then be re-activated with acid. The conjunct polymer can be separated from the borane compound, and the borane compound can be recycled.Type: ApplicationFiled: May 5, 2014Publication date: November 5, 2015Applicant: UOP LLCInventors: Erin M. Broderick, Alakananda Bhattacharyya, Susie C. Martins, Kaitlin M. DeSalvo, Douglas A. Nafis
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Patent number: 9156028Abstract: A process for making an alkylate is presented. The process includes mixing an isoparaffin stream with an olefin stream in an alkylation reactor. The alkylation reactor includes a catalyst for performing the reaction. The catalyst is an ionic liquid that is a quaternary phosphonium based ionic liquid, and the reaction is performed at or near ambient temperatures.Type: GrantFiled: March 12, 2013Date of Patent: October 13, 2015Assignee: UOP LLCInventors: Susie C. Martins, Douglas A. Nafis, Alakananda Bhattacharyya
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Patent number: 9156747Abstract: A process for making an alkylate is presented. The process includes mixing an isoparaffin stream with an olefin stream in an alkylation reactor. The alkylation reactor includes a catalyst for performing the reaction. The catalyst is an ionic liquid that is a quaternary phosphonium based ionic liquid, and the reaction is performed at or near ambient temperatures.Type: GrantFiled: March 12, 2013Date of Patent: October 13, 2015Assignee: UOP LLCInventors: Susie C. Martins, Douglas A. Nafis, Alakananda Bhattacharyya
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Publication number: 20150274613Abstract: An integrated hydrocarbon conversion process is described. The process includes contacting a heavy hydrocarbon feedstock with a hydrocarbon cracking catalyst in a fluidized reactor zone to produce light olefins to form a fluid catalytic cracker (FCC) effluent stream comprising a range of hydrocarbons. The FCC effluent stream is separated to form at least a stream rich in C4 hydrocarbons which comprises isobutane and 1-butene. The stream rich in C4 hydrocarbons is introduced into an alkylation reaction zone where the isobutane and the 1-butene are alkylated to form a reaction product mixture comprising dimethylhexanes and C9+ hydrocarbons. The reaction product mixture is dehydrocyclized to form a stream rich in xylenes.Type: ApplicationFiled: March 28, 2014Publication date: October 1, 2015Applicant: UOP LLCInventors: Trung Pham, Susie C. Martins, Douglas A. Nafis
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Patent number: 9120092Abstract: A method of regenerating an acidic catalyst is described. A silane compound is contacted with an acidic catalyst that contains conjunct polymer, which releases the conjunct polymer from the acidic catalyst. The acidic catalyst can then be re-activated with acid. The conjunct polymer can be separated from the silane compound, and the silane compound can be recycled.Type: GrantFiled: May 5, 2014Date of Patent: September 1, 2015Assignee: UOP LLCInventors: Erin M. Broderick, Alakananda Bhattacharyya, Susie C. Martins, Kaitlin M. DeSalvo, Douglas A. Nafis
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Patent number: 9096618Abstract: A method of regenerating a silyl or boryl compound is described. The silyl or boryl compound is contained in an organic phase with conjunct polymer. The silyl or boryl compound is chemically reduced with a hydrogen containing compound in a silane or borane regeneration zone under regeneration conditions to form at least one regenerated silane or borane compound and a metal salt compound. The regenerated silane or borane compound is recovered.Type: GrantFiled: May 5, 2014Date of Patent: August 4, 2015Assignee: UOP LLCInventors: Susie Martins, Douglas A. Nafis, Erin M. Broderick
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Publication number: 20140213435Abstract: Quaternary phosphonium haloaluminate compounds according to Formula (I): wherein R1-R3 are the same alkyl group; R4 is different than R1-R3 and is chosen from a C4-C12 alkyl; and X is a halogen, are provided herein for use as an ionic liquid catalyst for reacting olefins and isoparaffins to generate an alkylate.Type: ApplicationFiled: March 28, 2014Publication date: July 31, 2014Applicant: CYTEC INDUSTRIES INC.Inventors: Susie C. Martins, Douglas A. Nafis, Alakananda Bhattacharyya
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Publication number: 20140113804Abstract: Quaternary phosphonium haloaluminate compounds according to Formula (I): are provided herein, wherein R1-R3 are the same or different and each is chosen from a hydrocarbyl; R4 is different than R1-R3 and is chosen from a hydrocarbyl; and X is a halogen.Type: ApplicationFiled: December 20, 2013Publication date: April 24, 2014Applicant: Cytec Industries Inc.Inventors: Susie C. Martins, Douglas A. Nafis, Alakananda Bhattacharyya
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Publication number: 20130345483Abstract: A process for making an alkylate is presented. The process includes mixing an isoparaffin stream with an olefin stream in an alkylation reactor. The alkylation reactor includes a catalyst for performing the reaction. The catalyst is an ionic liquid that is a quaternary phosphonium based ionic liquid, and the reaction is performed at or near ambient temperatures.Type: ApplicationFiled: March 12, 2013Publication date: December 26, 2013Applicant: UOP LLCInventors: Susie C. Martins, Douglas A. Nafis, Alakananda Bhattacharyya
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Publication number: 20130345484Abstract: A process for making an alkylate is presented. The process includes mixing an isoparaffin stream with an olefin stream in an alkylation reactor. The alkylation reactor includes a catalyst for performing the reaction. The catalyst is an ionic liquid that is a quaternary chloroaluminate based ionic liquid, and the reaction is performed at or near ambient temperatures.Type: ApplicationFiled: March 12, 2013Publication date: December 26, 2013Applicant: UOP LLCInventors: Susie C. Martins, Douglas A. Nafis, Alakananda Bhattacharyya
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Publication number: 20130345482Abstract: A process for making an alkylate is presented. The process includes mixing an isoparaffin stream with an olefin stream in an alkylation reactor. The alkylation reactor includes a catalyst for performing the reaction. The catalyst is an ionic liquid that is a quaternary phosphonium based ionic liquid, and the reaction is performed at or near ambient temperatures.Type: ApplicationFiled: March 12, 2013Publication date: December 26, 2013Applicant: UOP LLCInventors: Susie C. Martins, Douglas A. Nafis, Alakananda Bhattacharyya
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Publication number: 20120230882Abstract: Alkylation systems and processes are provided herein that include a slurry reactor. The slurry reactor receives a reactor feed slurry including catalyst and liquid isobutane, a olefin feed, and a circulating reactor vapor stream, where the slurry reactor produces a reactor liquid effluent stream, the reactor liquid effluent stream including catalyst, isobutane, and a liquid alkylate product. The catalyst in the reactor feed slurry can be regenerated catalyst from a catalyst regenerator. The catalyst can be regenerated after being removed from the liquid alkylate product and isobutane in the reactor liquid effluent stream.Type: ApplicationFiled: May 25, 2012Publication date: September 13, 2012Applicant: UOP LLCInventors: Douglas A. Nafis, Lev Davydov, David N. Myers, Carl J. Stevens, Daniel N. Myers
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Publication number: 20110060178Abstract: Alkylation systems and processes are provided herein that include a slurry reactor. The slurry reactor receives a reactor feed slurry including catalyst and liquid isobutane, a olefin feed, and a circulating reactor vapor stream, where the slurry reactor produces a reactor liquid effluent stream, the reactor liquid effluent stream including catalyst, isobutane, and a liquid alkylate product. The catalyst in the reactor feed slurry can be regenerated catalyst from a catalyst regenerator. The catalyst can be regenerated after being removed from the liquid alkylate product and isobutane in the reactor liquid effluent stream.Type: ApplicationFiled: September 4, 2009Publication date: March 10, 2011Inventors: Douglas A. Nafis, Lev Davydov, David N. Myers, Carl J. Stevens, Daniel N. Myers
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Patent number: 7875757Abstract: A reforming and isomerization process has been developed. A reforming feedstream is charged to a reforming zone containing a reforming catalyst and operating at reforming conditions to generate a reforming zone effluent. Hydrogen and an isomerization feedstream is charged into an isomerization zone to contact an isomerization catalyst at isomerization conditions to increase the branching of the hydrocarbons. The isomerization catalyst is a solid acid catalyst comprising a support comprising a sulfated oxide or hydroxide of at least an element of Group IVB, a first component being at least one lanthanide series element, mixtures thereof, or yttrium, and a second component being a platinum group metal or mixtures thereof. The reforming zone effluent and the isomerization zone effluent are each separated to form a light ends stream and a product stream. The light ends streams are combined for processing in a net gas re-contacting zone.Type: GrantFiled: May 29, 2008Date of Patent: January 25, 2011Assignee: UOP LLCInventors: Douglas A. Nafis, Gregory F. Maher, Lynn H. Rice, William D. Schlueter, Ralph D. Gillespie, Michelle J. Cohn
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Patent number: 7575668Abstract: A process for selective hydrocracking of kerosene to produce naphtha and isobutane.Type: GrantFiled: October 6, 2004Date of Patent: August 18, 2009Assignee: UOP LLCInventor: Douglas A. Nafis
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Patent number: 7435329Abstract: A reforming and isomerization process has been developed. A reforming feedstream is charged to a reforming zone containing a reforming catalyst and operating at reforming conditions to generate a reforming zone effluent. Hydrogen and an isomerization feedstream is charged into an isomerization zone to contact an isomerization catalyst at isomerization conditions to increase the branching of the hydrocarbons. The isomerization catalyst is a solid acid catalyst comprising a support comprising a sulfated oxide or hydroxide of at least an element of Group IVB, a first component being at least one lanthanide series element, mixtures thereof, or yttrium, and a second component being a platinum group metal or mixtures thereof. The reforming zone effluent and the isomerization zone effluent are each separated to form a light ends stream and a product stream. The light ends streams are combined for processing in a net gas re-contacting zone.Type: GrantFiled: September 6, 2005Date of Patent: October 14, 2008Assignee: UOP LLCInventors: Douglas A. Nafis, Gregory F. Maher, Lynn H. Rice, William D. Schlueter, Ralph D. Gillespie, Michelle J. Cohn