Patents by Inventor Sanjeev Gajjela
Sanjeev Gajjela 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: 11781077Abstract: Described is a novel process for disaggregating biomass pyrolysis oil quantitatively into energy dense hydrophobic aromatic fraction (HAF), fermentable pyrolytic sugars and phenolics based products in a highly economical and energy efficient manner. Phase separation of the esterified pyrolysis oil after an oxidative pre-treatment and the quantitative recovery of the separate fractions is described. Phase separation uses batch as well as continuous reactor systems. The resulting HAF is an energy dense, thermally stable, water free, non-corrosive to carbon steel, and is a free flowing liquid suitable for combustion and for upgrading to transportation fuels. Pyrolytic sugars which are mainly anhydrosugars can be further converted by fermentation to ethanol or other products. Monomeric phenols are useful industrial intermediates and the organic acids in the original pyrolysis oil are mainly recovered as esters of the separation solvents.Type: GrantFiled: February 9, 2022Date of Patent: October 10, 2023Assignee: ALDER ENERGY, LLCInventors: Sanjeev Gajjela, Ralph Phillips Overend, Zhiheng Wu, Zsuzsa Ajsa Mayer, Haonan Wu, Jose Antonio Medrano Catalan
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Publication number: 20230049368Abstract: Described is a novel process for fractionating biomass pyrolysis oil quantitatively into energy dense hydrophobic aromatic fraction and water-soluble organics in an economical and energy efficient manner. Using the concepts of solvents and anti-solvent behaviors to separate the pyrolysis oil, which is an emulsion, a method utilizing minimal quantities of solvents and water is proposed, by comparison with the existing methods to isolate the hydrophobic aromatic fraction, there is a volume reduction of greater than 50:1. Additionally, there is a significant time saving over the 24 hours for the accepted method as a solvent, and the anti-solvent system is spontaneous.Type: ApplicationFiled: September 14, 2022Publication date: February 16, 2023Inventors: Sanjeev Gajjela, Ralph Phillips Overend, Javier Gonzalez Catalan, Zhiheng Wu, Patricia LaPuente, Jose Antonio Medrano Catalan
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Publication number: 20220389333Abstract: Described is a novel process for disaggregating biomass pyrolysis oil quantitatively into energy dense hydrophobic aromatic fraction (HAF), fermentable pyrolytic sugars and phenolics based products in a highly economical and energy efficient manner. Phase separation of the esterified pyrolysis oil after an oxidative pre-treatment and the quantitative recovery of the separate fractions is described. Phase separation uses batch as well as continuous reactor systems. The resulting HAF is an energy dense, thermally stable, water free, non-corrosive to carbon steel, and is a free flowing liquid suitable for combustion and for upgrading to transportation fuels. Pyrolytic sugars which are mainly anhydrosugars can be further converted by fermentation to ethanol or other products. Monomeric phenols are useful industrial intermediates and the organic acids in the original pyrolysis oil are mainly recovered as esters of the separation solvents.Type: ApplicationFiled: February 9, 2022Publication date: December 8, 2022Applicant: ALDER ENERGY, LLCInventors: Sanjeev GAJJELA, Ralph Phillips OVEREND, Zhiheng WU, MAYER Zsuzsa Ajsa, WU Haonan, Jose Antonio Medrano CATALAN
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Patent number: 11466220Abstract: Described is a novel process for fractionating biomass pyrolysis oil quantitatively into energy dense hydrophobic aromatic fraction and water-soluble organics in an economical and energy efficient manner. Using the concepts of solvents and anti-solvent behaviours to separate the pyrolysis oil, which is an emulsion, a method utilising minimal quantities of solvents and water is proposed, By comparison with the existing methods to isolate the hydrophobic aromatic fraction, there is a volume reduction of greater than 50:1. Additionally, there is a significant time saving over the 24 hours for the accepted method as a solvent, and the anti-solvent system is spontaneous.Type: GrantFiled: June 21, 2017Date of Patent: October 11, 2022Assignee: ALDER ENERGY, LLCInventors: Sanjeev Gajjela, Ralph Phillips Overend, Javier Gonzalez Catalan, Zhiheng Wu, Patricia Lapuente, Jose Antonio Medrano Catalan
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Patent number: 11421165Abstract: Described is a novel process for disaggregating biomass pyrolysis oil quantitatively into energy dense hydrophobic aromatic fraction (HAF), fermentable pyrolytic sugars and phenolics based products in a highly economical and energy efficient manner. Phase separation of the esterified pyrolysis oil after an oxidative pre-treatment and the quantitative recovery of the separate fractions is described. Phase separation uses batch as well as continuous reactor systems. The resulting HAF is an energy dense, thermally stable, water free, non-corrosive to carbon steel, and is a free flowing liquid suitable for combustion and for upgrading to transportation fuels. Pyrolytic sugars which are mainly anhydrosugars can be further converted by fermentation to ethanol or other products. Monomeric phenols are useful industrial intermediates and the organic acids in the original pyrolysis oil are mainly recovered as esters of the separation solvents.Type: GrantFiled: June 10, 2016Date of Patent: August 23, 2022Assignee: ALDER ENERGY, LLCInventors: Sanjeev Gajjela, Ralph Phillips Overend, Zhiheng Wu, Mayer Zsuzsa Ajsa, Wu Haonan, Jose Antonio Medrano Catalan
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Patent number: 11279889Abstract: Described is a novel process for disaggregating biomass pyrolysis oil quantitatively into energy dense hydrophobic aromatic fraction (HAF), fermentable pyrolytic sugars and phenolics based products in a highly economical and energy efficient manner. Phase separation of the esterified pyrolysis oil after an oxidative pre-treatment and the quantitative recovery of the separate fractions is described. Phase separation uses batch as well as continuous reactor systems. The resulting HAF is an energy dense, thermally stable, water free, non-corrosive to carbon steel, and is a free flowing liquid suitable for combustion and for upgrading to transportation fuels. Pyrolytic sugars which are mainly anhydrosugars can be further converted by fermentation to ethanol or other products. Monomeric phenols are useful industrial intermediates and the organic acids in the original pyrolysis oil are mainly recovered as esters of the separation solvents.Type: GrantFiled: June 10, 2016Date of Patent: March 22, 2022Assignee: ALDER ENERGY, LLCInventors: Sanjeev Gajjela, Ralph Phillips Overend, Zhiheng Wu, Mayer Zsuzsa Ajsa, Wu Haonan, Jose Antonio Medrano Catalan
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Publication number: 20220010138Abstract: The invention provides a method for preparing a binder precursor, the method comprising the steps of: i) mixing (A) fungi or glucan and (B) starch with an alkaline agent in the presence of an aqueous solvent system to form an alkaline composition; ii) mixing the alkaline composition with an acidic agent to form a mixture; and iii) drying the mixture and forming a powder therefrom, so as to form a powdered binder precursor.Type: ApplicationFiled: November 21, 2019Publication date: January 13, 2022Applicant: Materialize.X LimitedInventors: Haidin Farmin Rashid, Adrien Stephane Hitz, Sanjeev Gajjela
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Publication number: 20210309924Abstract: Described is a novel process for disaggregating biomass pyrolysis oil quantitatively into energy dense hydrophobic aromatic fraction (HAF), fermentable pyrolytic sugars and phenolics based products in a highly economical and energy efficient manner. Phase separation of the esterified pyrolysis oil after an oxidative pre-treatment and the quantitative recovery of the separate fractions is described. Phase separation uses batch as well as continuous reactor systems. The resulting HAF is an energy dense, thermally stable, water free, non-corrosive to carbon steel, and is a free flowing liquid suitable for combustion and for upgrading to transportation fuels. Pyrolytic sugars which are mainly anhydrosugars can be further converted by fermentation to ethanol or other products. Monomeric phenols are useful industrial intermediates and the organic acids in the original pyrolysis oil are mainly recovered as esters of the separation solvents.Type: ApplicationFiled: June 10, 2016Publication date: October 7, 2021Inventors: Sanjeev GAJJELA, Ralph Phillips OVEREND, Zhiheng WU, MAYER Zsuzsa Ajsa, WU Haonan, Jose Antonio Medrano CATALAN
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Publication number: 20190330540Abstract: Described is a novel process for fractionating biomass pyrolysis oil quantitatively into energy dense hydrophobic aromatic fraction and water-soluble organics in an economical and energy efficient manner. Using the concepts of solvents and anti-solvent behaviours to separate the pyrolysis oil, which is an emulsion, a method utilising minimal quantities of solvents and water is proposed, By comparison with the existing methods to isolate the hydrophobic aromatic fraction, there is a volume reduction of greater than 50:1. Additionally, there is a significant time saving over the 24 hours for the accepted method as a solvent, and the anti-solvent system is pontaneous.Type: ApplicationFiled: June 21, 2017Publication date: October 31, 2019Inventors: Sanjeev GAJJELA, Ralph Phillips OVEREND, Javier Gonzalez CATALAN, Zhiheng WU, Patricia LAPUENTE, Jose Antonio Medrano CATALAN
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Patent number: 8603199Abstract: This invention relates to a method and device to produce esterified, olefinated/esterified, or thermochemolytic reacted bio-oils as fuels. The olefinated/esterified product may be utilized as a biocrude for input to a refinery, either alone or in combination with petroleum crude oils. The bio-oil esterification reaction is catalyzed by addition of alcohol and acid catalyst. The olefination/esterification reaction is catalyzed by addition of resin acid or other heterogeneous catalyst to catalyze olefins added to previously etherified bio-oil; the olefins and alcohol may also be simultaneously combined and catalyzed by addition of resin acid or other heterogeneous catalyst to produce the olefinated/esterified product.Type: GrantFiled: October 1, 2010Date of Patent: December 10, 2013Assignee: Mississippi State UniversityInventors: Philip H. Steele, Charles U. Pittman, Jr., Leonard L. Ingram, Jr., Sanjeev Gajjela, Zhijun Zhang, Priyanka Bhattacharya
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Publication number: 20110192072Abstract: This invention relates to a method and device to produce esterified, olefinated/esterified, or thermochemolytic reacted bio-oils as fuels. The olefinated/esterified product may be utilized as a biocrude for input to a refinery, either alone or in combination with petroleum crude oils. The bio-oil esterification reaction is catalyzed by addition of alcohol and acid catalyst. The olefination/esterification reaction is catalyzed by addition of resin acid or other heterogeneous catalyst to catalyze olefins added to previously etherified bio-oil; the olefins and alcohol may also be simultaneously combined and catalyzed by addition of resin acid or other heterogeneous catalyst to produce the olefinated/esterified product.Type: ApplicationFiled: October 1, 2010Publication date: August 11, 2011Applicant: MISSISSIPPI STATE UNIVERSITYInventors: Philip H. Steele, Charles U. Pittman, JR., Leonard L. Ingram, JR., Sanjeev Gajjela, Zhijun Zhang, Priyanka Bhattacharya