Patents Assigned to ALDER ENERGY, LLC
  • Patent number: 11781077
    Abstract: 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: Grant
    Filed: February 9, 2022
    Date of Patent: October 10, 2023
    Assignee: ALDER ENERGY, LLC
    Inventors: Sanjeev Gajjela, Ralph Phillips Overend, Zhiheng Wu, Zsuzsa Ajsa Mayer, Haonan Wu, Jose Antonio Medrano Catalan
  • Publication number: 20220389333
    Abstract: 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: Application
    Filed: February 9, 2022
    Publication date: December 8, 2022
    Applicant: ALDER ENERGY, LLC
    Inventors: Sanjeev GAJJELA, Ralph Phillips OVEREND, Zhiheng WU, MAYER Zsuzsa Ajsa, WU Haonan, Jose Antonio Medrano CATALAN
  • Patent number: 11466220
    Abstract: 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: Grant
    Filed: June 21, 2017
    Date of Patent: October 11, 2022
    Assignee: ALDER ENERGY, LLC
    Inventors: Sanjeev Gajjela, Ralph Phillips Overend, Javier Gonzalez Catalan, Zhiheng Wu, Patricia Lapuente, Jose Antonio Medrano Catalan
  • Patent number: 11421165
    Abstract: 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: Grant
    Filed: June 10, 2016
    Date of Patent: August 23, 2022
    Assignee: ALDER ENERGY, LLC
    Inventors: Sanjeev Gajjela, Ralph Phillips Overend, Zhiheng Wu, Mayer Zsuzsa Ajsa, Wu Haonan, Jose Antonio Medrano Catalan
  • Patent number: 11279889
    Abstract: 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: Grant
    Filed: June 10, 2016
    Date of Patent: March 22, 2022
    Assignee: ALDER ENERGY, LLC
    Inventors: Sanjeev Gajjela, Ralph Phillips Overend, Zhiheng Wu, Mayer Zsuzsa Ajsa, Wu Haonan, Jose Antonio Medrano Catalan