Patents by Inventor Jennifer F. Abrahamian
Jennifer F. Abrahamian 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: 9079159Abstract: A process for olefin metathesis is disclosed. The process involves contacting a feedstock comprising a first olefin and a second olefin having a carbon number at least two greater than that of the first olefin with a catalyst comprising a tungsten component on a refractory oxide support, e.g. silica at metathesis conditions to provide a product olefin having an intermediate carbon number between that of the first and second olefin. The catalyst is characterized in that it is first pretreated with hydrogen followed by treatment with ethylene.Type: GrantFiled: April 14, 2011Date of Patent: July 14, 2015Assignee: UOP LLCInventors: Christopher P Nicholas, Mark A. Krawczyk, Kristoffer E. Popp, Jennifer F. Abrahamian
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Publication number: 20150175896Abstract: Methods for deoxygenating treated biomass-derived pyrolysis oil are provided. The treated biomass-derived pyrolysis oil is exposed to a catalyst having a neutral catalyst support such as a non-alumina metal oxide support, a theta alumina support, or both. The non-alumina metal oxide support may be a titanium oxide (TiO2) support, a silicon oxide support, a zirconia oxide (ZrO2) support, a niobium oxide (Nb2O5) support, or a support having a mixture of non-alumina metal oxides. The catalyst may include a noble metal or a Group VIII non-noble metal and a Group VIB non-noble metal on the neutral catalyst support. The treated biomass-derived pyrolysis oil is introduced into a hydroprocessing reactor in the presence of the catalyst under hydroprocessing conditions to produce low oxygen biomass-derived pyrolysis oil.Type: ApplicationFiled: February 26, 2015Publication date: June 25, 2015Applicant: UOP LLCInventors: Thomas Traynor, Timothy A. Brandvold, Jennifer F. Abrahamian
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Publication number: 20150166901Abstract: Embodiments of methods and catalysts for deoxygenating a biomass-derived pyrolysis oil are provided. The method comprises the step of contacting the biomass-derived pyrolysis oil with a first deoxygenating catalyst in the presence of hydrogen at first predetermined hydroprocessing conditions to form a first low-oxygen biomass-derived pyrolysis oil effluent. The first deoxygenating catalyst comprises a neutral catalyst support, nickel, cobalt, and molybdenum. The first deoxygenating catalyst comprises nickel in an amount calculated as an oxide of from about 0.1 to about 1.5 wt. %.Type: ApplicationFiled: February 20, 2015Publication date: June 18, 2015Applicant: UOP LLCInventors: Thomas Traynor, Timothy A. Brandvold, Jennifer F. Abrahamian
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Patent number: 8895795Abstract: Acid washing of silica supports, used for supported tungsten catalysts, improves the activity of the resulting catalyst (i.e., its conversion level at a given temperature) for the metathesis of olefins, without compromising its selectivity to the desired conversion product(s). Exemplary catalysts and processes include those for the production of valuable light olefins such as propylene from a hydrocarbon feedstock comprising ethylene and butylene.Type: GrantFiled: February 5, 2010Date of Patent: November 25, 2014Assignee: UOP LLCInventors: Mark A. Krawczyk, Kristoffer E. Popp, Christopher P. Nicholas, Jennifer F. Abrahamian
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Patent number: 8722568Abstract: Silica supports having a surface area from about 250 m2/g to about 600 m2/g and an average pore diameter from about 45 ? to about 170 ?, used for supported tungsten catalysts, improves the activity of the resulting catalyst (i.e., its conversion level at a given temperature) for the metathesis of olefins, without compromising its selectivity to the desired conversion product(s). Exemplary catalysts and processes include those for the production of valuable light olefins such as propylene from a hydrocarbon feedstock comprising ethylene and butylene.Type: GrantFiled: July 17, 2012Date of Patent: May 13, 2014Assignee: UOP LLCInventors: Kristoffer E. Popp, Mark A. Krawczyk, Christopher P. Nicholas, Jennifer F. Abrahamian
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Publication number: 20120305836Abstract: Embodiments of methods and catalysts for deoxygenating a biomass-derived pyrolysis oil are provided. The method comprises the step of contacting the biomass-derived pyrolysis oil with a first deoxygenating catalyst in the presence of hydrogen at first predetermined hydroprocessing conditions to form a first low-oxygen biomass-derived pyrolysis oil effluent. The first deoxygenating catalyst comprises a neutral catalyst support, nickel, cobalt, and molybdenum. The first deoxygenating catalyst comprises nickel in an amount calculated as an oxide of from about 0.1 to about 1.5 wt. %.Type: ApplicationFiled: June 1, 2011Publication date: December 6, 2012Applicant: UOP LLCInventors: Thomas Traynor, Timothy A. Brandvold, Jennifer F. Abrahamian
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Patent number: 8324440Abstract: Silica supports having a surface area from about 250 m2/g to about 600 m2/g and an average pore diameter from about 45 ? to about 170 ?, used for supported tungsten catalysts, improves the activity of the resulting catalyst (i.e., its conversion level at a given temperature) for the metathesis of olefins, without compromising its selectivity to the desired conversion product(s). Exemplary catalysts and processes include those for the production of valuable light olefins such as propylene from a hydrocarbon feedstock comprising ethylene and butylene.Type: GrantFiled: February 5, 2010Date of Patent: December 4, 2012Assignee: UOP LLCInventors: Kristoffer E. Popp, Mark A. Krawczyk, Christopher P. Nicholas, Jennifer F. Abrahamian
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Publication number: 20120283090Abstract: Silica supports having a surface area from about 250 m2/g to about 600 m2/g and an average pore diameter from about 45 ? to about 170 ?, used for supported tungsten catalysts, improves the activity of the resulting catalyst (i.e., its conversion level at a given temperature) for the metathesis of olefins, without compromising its selectivity to the desired conversion product(s). Exemplary catalysts and processes include those for the production of valuable light olefins such as propylene from a hydrocarbon feedstock comprising ethylene and butylene.Type: ApplicationFiled: July 17, 2012Publication date: November 8, 2012Applicant: UOP LLCInventors: Kristoffer E. Popp, Mark A. Krawczyk, Christopher P. Nicholas, Jennifer F. Abrahamian
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Publication number: 20120264990Abstract: A process for olefin metathesis is disclosed. The process involves contacting a feedstock comprising a first olefin and a second olefin having a carbon number at least two greater than that of the first olefin with a catalyst comprising a tungsten component on a refractory oxide support, e.g. silica at metathesis conditions to provide a product olefin having an intermediate carbon number between that of the first and second olefin. The catalyst is characterized in that it is first pretreated with hydrogen followed by treatment with ethylene.Type: ApplicationFiled: April 14, 2011Publication date: October 18, 2012Applicant: UOP LLCInventors: Christopher P Nicholas, Mark A. Krawczyk, Kristoffer E. Popp, Jennifer F. Abrahamian
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Publication number: 20120017495Abstract: Methods for deoxygenating treated biomass-derived pyrolysis oil are provided. The treated biomass-derived pyrolysis oil is exposed to a catalyst having a neutral catalyst support such as a non-alumina metal oxide support, a theta alumina support, or both. The non-alumina metal oxide support may be a titanium oxide (TiO2) support, a silicon oxide support, a zirconia oxide (ZrO2) support, a niobium oxide (Nb2O5) support, or a support having a mixture of non-alumina metal oxides. The catalyst may include a noble metal or a Group VIII non-noble metal and a Group VIB non-noble metal on the neutral catalyst support. The treated biomass-derived pyrolysis oil is introduced into a hydroprocessing reactor in the presence of the catalyst under hydroprocessing conditions to produce low oxygen biomass-derived pyrolysis oil.Type: ApplicationFiled: July 26, 2010Publication date: January 26, 2012Applicant: UOP LLCInventors: Thomas Traynor, Timothy A. Brandvold, Jennifer F. Abrahamian
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Publication number: 20110196184Abstract: Silica supports having a surface area from about 250 m2/g to about 600 m2/g and an average pore diameter from about 45 ? to about 170 ?, used for supported tungsten catalysts, improves the activity of the resulting catalyst (i.e., its conversion level at a given temperature) for the metathesis of olefins, without compromising its selectivity to the desired conversion product(s). Exemplary catalysts and processes include those for the production of valuable light olefins such as propylene from a hydrocarbon feedstock comprising ethylene and butylene.Type: ApplicationFiled: February 5, 2010Publication date: August 11, 2011Applicant: UOP LLCInventors: Kristoffer E. POPP, Mark A. KRAWCZYK, Christopher P. NICHOLAS, Jennifer F. ABRAHAMIAN
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Publication number: 20110196185Abstract: Acid washing of silica supports, used for supported tungsten catalysts, improves the activity of the resulting catalyst (i.e., its conversion level at a given temperature) for the metathesis of olefins, without compromising its selectivity to the desired conversion product(s). Exemplary catalysts and processes include those for the production of valuable light olefins such as propylene from a hydrocarbon feedstock comprising ethylene and butylene.Type: ApplicationFiled: February 5, 2010Publication date: August 11, 2011Applicant: UOP LLCInventors: Mark A. KRAWCZYK, Kristoffer E. POPP, Christopher P. NICHOLAS, Jennifer F. ABRAHAMIAN