Patents by Inventor Yogesh V. Joshi

Yogesh V. Joshi 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).

  • Publication number: 20240071575
    Abstract: Ranking materials for post combustion carbon capture by characterizing sorbent materials with a molecular model workflow that generates microscopic figures of merit for materials by microscopic properties; and evaluating the materials from the molecular model workflow with a process model workflow that generates macroscopic figures of merit for process steps of a carbon recovery process. The materials for applicability as a sorbent material are ranked using a combined microscopic performance and macroscopic process feasibility generator that ranks the materials according to the microscopic figures of merit for materials and the macroscopic figures of merit for the process steps.
    Type: Application
    Filed: August 30, 2022
    Publication date: February 29, 2024
    Inventors: Rodrigo Neumann Barros Ferreira, Ricardo Luis Ohta, Yogesh V. Joshi, Mathias B. Steiner, Tonia Elengikal, Binquan Luan, Ashish B. Mhadeshwar, Jayashree Kalyanaraman, Anantha Sundaram, Sumathy Raman
  • Patent number: 11873453
    Abstract: Provided herein are methods and systems of making a high quality isoparaffinic base stock which include contacting an adsorbent material with a hydrocarbon feedstock and a solvent and separating at least some of the one or more high VI components from the hydrocarbon feedstock to produce a first fraction base stock having a first fraction base stock viscosity index. The adsorbent material is desorbed with a second solvent to produce a second fraction base stock having a second fraction base stock viscosity index. In these methods, the first fraction base stock viscosity index is less than the hydrocarbon feedstock viscosity index and the second fraction base stock viscosity index is greater than the hydrocarbon feedstock viscosity index.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: January 16, 2024
    Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
    Inventors: Randall D. Partridge, Changyub Paek, Yogesh V. Joshi, Carmen C. Lasso, Scott J. Weigel
  • Publication number: 20230357650
    Abstract: A process for separating one or more one-ring cycloparaffins and one or more multi-ring cycloparaffins from a hydrocarbon mixture is disclosed. The process comprises the steps of providing the hydrocarbon mixture; and contacting the hydrocarbon mixture with an adsorbent material comprising a metal organic framework to separate the one or more one-ring cycloparaffins and the one or more multi-ring cycloparaffins from the hydrocarbon mixture. The process is conducted in a liquid phase.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 9, 2023
    Inventors: Changyub Paek, Joseph M. Falkowski, Randall D. Partridge, Yogesh V. Joshi, Carmen C. Lasso
  • Publication number: 20230287278
    Abstract: This disclosure provides methods for separating multi-ring naphthenes from a hydrocarbon feedstock. The hydrocarbon feedstock includes at least normal paraffins, isoparaffins, 1-ring naphthenes attached with a paraffinic alkyl chain, and multi-ring naphthenes. The methods comprise passing the hydrocarbon feedstock and a solvent, at a temperature and pressure through a bed of an adsorbent comprising a metal-organic framework (MOF) adsorbent, to adsorb the multi-ring naphthenes from the hydrocarbon feedstock, thereby producing a base stock product that is depleted in multi-ring naphthenes. The metal-organic framework adsorbent is a porous crystalline material comprised of metal functionalities connected by organic linkers to form a repeating 2-D or 3-D lattice. The base stock product has a viscosity index (VI) greater than the viscosity index of the hydrocarbon feedstock.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 14, 2023
    Inventors: Changyub Paek, Joseph M. Falkowski, Yogesh V. Joshi, Carmen C. Lasso
  • Publication number: 20230160863
    Abstract: The present disclosure provides methods for determining adsorption isotherms for complex mixtures. In at least one embodiment, a method for obtaining adsorption isotherms for liquid mixtures includes providing a column comprising an adsorbent. The method includes delivering a composition to the column, the composition comprising a multi-component feed and a solvent. The method includes collecting a sample from the column and introducing the sample to a two dimensional gas chromatograph to determine a time-series concentration of one or more components of the sample. The method includes integrating the time-series concentration of at least one of the one or more components to determine an isotherm of the at least one component. The method includes obtaining quantitative information of the at least one component, based on the isotherm of the at least one component.
    Type: Application
    Filed: February 16, 2021
    Publication date: May 25, 2023
    Inventors: Yogesh V. JOSHI, Anantha Sundaram, Changyub Peak, Randall D. PARTRIDGE, Wenjun Li, Carla S. PEREIRA, Nikki J. Bakas
  • Patent number: 11634371
    Abstract: A method for separating classes of hydrocarbon compounds from a feed stream including a hydrocarbon mixture is disclosed. The method includes the steps of passing a feed stream through a plurality of separation units arranged in a series in any order, wherein each separation unit has an adsorbent material; and separating classes of hydrocarbon compounds from the feed stream. When one of the plurality of separation units comprises an adsorbent material that is a metal organic framework selected from a zirconium, hafnium, cerium, or titanium-based metal organic framework, then another plurality of separation units includes an adsorption material that is different from the metal organic framework. The method is conducted in a liquid phase. The method can also use a single separation unit with a continuous cyclic bed apparatus. The method can be combined with refining and downstream processes.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: April 25, 2023
    Assignee: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY
    Inventors: Changyub Paek, Randall D. Partridge, Yogesh V. Joshi, Jayashree Kalyanaraman, Joseph M. Falkowski
  • Publication number: 20220389331
    Abstract: Provided herein are methods and systems of making a high quality isoparaffinic base stock which include contacting an adsorbent material with a hydrocarbon feedstock and a solvent and separating at least some of the one or more high VI components from the hydrocarbon feedstock to produce a first fraction base stock having a first fraction base stock viscosity index. The adsorbent material is desorbed with a second solvent to produce a second fraction base stock having a second fraction base stock viscosity index. In these methods, the first fraction base stock viscosity index is less than the hydrocarbon feedstock viscosity index and the second fraction base stock viscosity index is greater than the hydrocarbon feedstock viscosity index.
    Type: Application
    Filed: May 19, 2022
    Publication date: December 8, 2022
    Inventors: Randall D. Partridge, Changyub Paek, Yogesh V. Joshi, Carmen C. Lasso, Scott J. Weigel
  • Publication number: 20220370992
    Abstract: Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers. MOFs having ambient condition stability may comprise a plurality of metal clusters comprising one or more M4O clusters (M is a metal), and a plurality of 4-pyrazolecarboxylate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores. The MOFs may have a Pa3 symmetry, which upon activation may convert into Fm3m symmetry.
    Type: Application
    Filed: May 28, 2020
    Publication date: November 24, 2022
    Inventors: Joseph M. Falkowski, Yogesh V. Joshi, Mary S. Abdulkarim, Simon C. Weston
  • Publication number: 20220305456
    Abstract: Metal-organic framework materials (MOFs) are highly porous entities comprising a multidentate organic ligand coordinated to multiple metal centers, typically as a coordination polymer. Some highly porous MOFs lack stability at ambient conditions. MOFs having ambient condition stability may comprise a plurality of metal clusters (M4O clusters, M=a metal), and a plurality of 4-(1H-pyrazol-4-yl)benzoate ligands coordinated to the plurality of metal clusters to define an at least partially crystalline network structure having a plurality of internal pores.
    Type: Application
    Filed: May 26, 2020
    Publication date: September 29, 2022
    Inventors: Joseph M. Falkowski, Yogesh V. Joshi, Mary S. Abdulkarim, Simon C. Weston
  • Publication number: 20220177393
    Abstract: A method for separating classes of hydrocarbon compounds from a feed stream including a hydrocarbon mixture is disclosed. The method includes the steps of passing a feed stream through a plurality of separation units arranged in a series in any order, wherein each separation unit has an adsorbent material; and separating classes of hydrocarbon compounds from the feed stream. When one of the plurality of separation units comprises an adsorbent material that is a metal organic framework selected from a zirconium, hafnium, cerium, or titanium-based metal organic framework, then another plurality of separation units includes an adsorption material that is different from the metal organic framework. The method is conducted in a liquid phase. The method can also use a single separation unit with a continuous cyclic bed apparatus. The method can be combined with refining and downstream processes.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 9, 2022
    Inventors: Changyub Paek, Randall D. Partridge, Yogesh V. Joshi, Jayashree Kalyanaraman, Joseph M. Falkowski
  • Publication number: 20220162247
    Abstract: A process for producing a bimetallic, terephthalate metal organic framework (MOF) having a flexible structure and comprising aluminum and iron cations, comprises contacting a water-soluble aluminum salt, a chelated iron compound and 1,4-benzenedicarboxylic acid or a salt thereof with a fluoride-free mixture of water and a polar organic solvent at a reaction temperature of less than 200° C. to produce a solid reaction product comprising the MOF.
    Type: Application
    Filed: April 1, 2020
    Publication date: May 26, 2022
    Inventors: Joseph M. Falkowski, Pavel Kortunov, Yogesh V. Joshi, Gerardo J. Majano
  • Patent number: 11186788
    Abstract: Disclosed are methods and apparatuses for separating a wax product from a hydrocarbon feedstream by a) conducting a hydrocarbon feedstream to a membrane separation zone; b) retrieving at least one retentate product stream from the first side of the membrane element; c) retrieving at least one permeate product stream having a wax phase and an oil phase from a second side of the membrane element, wherein a pour point of the wax phase of the permeate product stream is higher than a pour point of the oil phase of permeate product stream; and d) separating a wax product from the wax phase of the permeate product stream.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: November 30, 2021
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Benjamin A. McCool, Yogesh V. Joshi, Dhaval A. Bhandari, Roberto Garcia, Randall D. Partridge
  • Patent number: 11084985
    Abstract: Methods and systems are provided herein utilizing a membrane cascade to separate a hydrocarbon feed into boiling point fractions. Also provided herein are methods for selecting membranes for said cascades to achieve the desired boiling point fraction separation.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: August 10, 2021
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Benjamin A. McCool, Dhaval A. Bhandari, Yogesh V. Joshi
  • Publication number: 20190390129
    Abstract: Methods and apparatuses are provided for producing base stocks by using a separation process that includes: conducting a hydrocarbon feedstream to a membrane separation zone wherein the feedstream contacts a first side of at least one membrane element; retrieving at least one retentate product stream from the first side of the membrane element; retrieving at least one permeate product stream from a second side of the membrane element; and converting at least a portion of the permeate product stream into the base stock. Also provided are base stocks produced by the separation process.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Inventors: Benjamin A. McCool, Jason T. Calla, Dhaval A. Bhandari, Yogesh V. Joshi
  • Publication number: 20190390126
    Abstract: Disclosed are methods and apparatuses for separating a wax product from a hydrocarbon feedstream by a) conducting a hydrocarbon feedstream to a membrane separation zone; b) retrieving at least one retentate product stream from the first side of the membrane element; c) retrieving at least one permeate product stream having a wax phase and an oil phase from a second side of the membrane element, wherein a pour point of the wax phase of the permeate product stream is higher than a pour point of the oil phase of permeate product stream; and d) separating a wax product from the wax phase of the permeate product stream.
    Type: Application
    Filed: June 21, 2019
    Publication date: December 26, 2019
    Inventors: Benjamin A. McCool, Yogesh V. Joshi, Dhaval A. Bhandari, Roberto Garcia, Randall D. Partridge
  • Publication number: 20190367820
    Abstract: Methods and systems are provided herein utilizing a membrane cascade to separate a hydrocarbon feed into boiling point fractions. Also provided herein are methods for selecting membranes for said cascades to achieve the desired boiling point fraction separation.
    Type: Application
    Filed: May 28, 2019
    Publication date: December 5, 2019
    Inventors: Benjamin A. McCool, Dhaval A. Bhandari, Yogesh V. Joshi
  • Patent number: 9217735
    Abstract: The present invention provides a method for selecting an improved catalyst composition comprising a crystalline molecular sieve material having a structure and properties whereby the catalyst composition has at least one active catalytic site with a Mono Alkylation Selectivity Factor (MASF) greater than or equal to 0 kcal/mol±0.5 kcal/mol, and optionally further at least one active catalytic site with an Olefin Oligomerization Suppression Factor (OOSF) greater than or equal to 5 kcal/mol±0.5 kcal/mol. Further, there is provided an improved process for conversion of hydrocarbon feedstock in the presence of said selected catalyst composition.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: December 22, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Yogesh V. Joshi, Pallassana S. Venkataraman, Terry E. Helton, Charles M. Smith, Jose G. Santiesteban, Matthew J. Vincent
  • Publication number: 20130253246
    Abstract: The present invention provides a method for selecting an improved catalyst composition comprising a crystalline molecular sieve material having a structure and properties whereby the catalyst composition has at least one active catalytic site with a Mono Alkylation Selectivity Factor (MASF) greater than or equal to 0 kcal/mol±0.5 kcal/mol, and optionally further at least one active catalytic site with an Olefin Oligomerization Suppression Factor (OOSF) greater than or equal to 5 kcal/mol±0.5 kcal/mol. Further, there is provided an improved process for conversion of hydrocarbon feedstock in the presence of said selected catalyst composition.
    Type: Application
    Filed: August 4, 2011
    Publication date: September 26, 2013
    Applicant: ExxonMobil Chemical Patents Inc.
    Inventors: Yogesh V. Joshi, Pallassana S. Venkataraman, Terry E. Helton, Charles M. Smith, Jose G. Santiesteban, Matthew J. Vincent
  • Publication number: 20110166402
    Abstract: This disclosure relates to a molecular sieve comprising a framework of tetrahedral atoms bridged by oxygen atoms, the tetrahedral atom framework being defined by a unit cell with atomic coordinates in nanometers shown in Table 3.
    Type: Application
    Filed: July 15, 2009
    Publication date: July 7, 2011
    Inventors: Wieslaw J. Roth, Douglas L. Dorset, Gordon J. Kennedy, Thomas Yorke, Terry Eugene Helton, Prasenjeet Ghosh, Yogesh V. Joshi