Patents by Inventor Vemuri Balakotaiah

Vemuri Balakotaiah 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).

  • Patent number: 11666879
    Abstract: Disclosed herein are systems and processes for the conversion of a methane feedstock to C2+ hydrocarbons.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: June 6, 2023
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Wugeng Liang, Sagar Sarsani, David West, James Kauffman, Jonathan Banke, Hector Perez, Robert C. Schucker, Tian Gu, Vemuri Balakotaiah
  • Patent number: 10995044
    Abstract: Methods of performing a startup of an oxidative coupling of methane reaction to produce C2+ hydrocarbons are described. The methods can include incrementally varying startup parameters of the oxidative methane reactor and using the feed gas as a coolant such that high C2+ hydrocarbon selectivity is achieved.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: May 4, 2021
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Sagar Sarsani, David West, Vemuri Balakotaiah, Wugeng Liang, Jonathan Banke
  • Publication number: 20210087121
    Abstract: A method of autothermal oxidative coupling of methane (OCM) utilizes introducing a methane-containing feedstock and an oxygen-gas-containing feedstock into a reactor (10) as a flowing mixture (18) with a space time of 500 ms or less. The reactor (10) contains a catalyst bed (20) of an OCM catalyst that contacts the flowing mixture and wherein the catalyst bed (20) has a heat Peclet number (Peh) of from 5 or less, a mass Peclet number (Pem) of from 5 or more, and a transverse Peclet number (P) of from 1 or less while contacting the flowing mixture. The methane and oxygen of the feedstocks are allowed to react within the reactor (10) to form methane oxidative coupling reaction products. A reactor (10) for carrying out the OCM reaction is also disclosed.
    Type: Application
    Filed: May 2, 2019
    Publication date: March 25, 2021
    Inventors: Sagar Sarsani, David West, Vemuri Balakotaiah, Tian Gu
  • Patent number: 10941088
    Abstract: A method of autothermal oxidative coupling of methane (OCM) utilizes introducing a methane-containing feedstock and an oxygen-gas-containing feedstock into a reactor (10) as a flowing mixture (18) with a space time of 500 ms or less. The reactor (10) contains a catalyst bed (20) of an OCM catalyst that contacts the flowing mixture and wherein the catalyst bed (20) has a heat Peclet number (Peh) of from 5 or less, a mass Peclet number (Pem) of from 5 or more, and a transverse Peclet number (P) of from 1 or less while contacting the flowing mixture. The methane and oxygen of the feedstocks are allowed to react within the reactor (10) to form methane oxidative coupling reaction products. A reactor (10) for carrying out the OCM reaction is also disclosed.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: March 9, 2021
    Assignee: SABIC Global Technologies B.V.
    Inventors: Sagar Sarsani, David West, Vemuri Balakotaiah, Tian Gu
  • Publication number: 20210031161
    Abstract: Disclosed herein are systems and processes for the conversion of a methane feedstock to C2+ hydrocarbons.
    Type: Application
    Filed: April 18, 2019
    Publication date: February 4, 2021
    Inventors: Wugeng LIANG, Sagar SARSANI, David WEST, James KAUFFMAN, Jonathan BANKE, Hector PEREZ, Robert C. SCHUCKER, Tian GU, Vemuri BALAKOTAIAH
  • Patent number: 10843982
    Abstract: Methods of performing a startup of an oxidative coupling of methane reaction to produce C2+ hydrocarbons are described. The methods can include incrementally varying startup parameters of the oxidative methane reactor and using the feed gas as a coolant such that high C2+ hydrocarbon selectivity is achieved.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: November 24, 2020
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Sagar Sarsani, David West, Vemuri Balakotaiah, Wugeng Liang, Jonathan Banke
  • Publication number: 20200339488
    Abstract: Methods of performing a startup of an oxidative coupling of methane reaction to produce C2+ hydrocarbons are described. The methods can include incrementally varying startup parameters of the oxidative methane reactor and using the feed gas as a coolant such that high C2+ hydrocarbon selectivity is achieved.
    Type: Application
    Filed: July 1, 2020
    Publication date: October 29, 2020
    Inventors: Sagar SARSANI, David WEST, Vemuri BALAKOTAIAH, Wugeng LIANG, Jonathan BANKE
  • Publication number: 20200131101
    Abstract: Methods of performing a startup of an oxidative coupling of methane reaction to produce C2+ hydrocarbons are described. The methods can include incrementally varying startup parameters of the oxidative methane reactor and using the feed gas as a coolant such that high C2+ hydrocarbon selectivity is achieved.
    Type: Application
    Filed: February 5, 2018
    Publication date: April 30, 2020
    Inventors: Sagar SARSANI, David WEST, Vemuri BALAKOTAIAH, Wugeng LIANG, Jonathan BANKE
  • Publication number: 20170240488
    Abstract: Disclosed is a method for production of ethylene by an oxidative coupling of methane process in the presence of a catalytic material. Heat generated from the oxidative coupling of methane can be transferred to an inert material in an amount sufficient to reduce thermal deactivation of the catalytic material.
    Type: Application
    Filed: December 9, 2015
    Publication date: August 24, 2017
    Inventors: David West, Wugeng Liang, Sagar Sarsani, Vemuri Balakotaiah, Aghaddin Mamedov
  • Publication number: 20170226029
    Abstract: Disclosed is a method for production of synthesis gas and ethylene by a combined oxidative coupling and dry reforming of methane process. Heat generated from the oxidative coupling of methane can be used to drive the endothermic dry reforming of methane reaction.
    Type: Application
    Filed: December 9, 2015
    Publication date: August 10, 2017
    Applicant: SABIC Global Technologies B.V.
    Inventors: Aghaddin Mamedov, David West, Vemuri Balakotaiah, Sagar Sarsani, Wugeng Liang
  • Patent number: 7657415
    Abstract: Subterranean treatment formation using a model which takes into account the pore level physics by coupling the local pore scale phenomena to the macroscopic variables (Darcy velocity, pressure and reactant cup-mixing concentration) through the structure-property relationships (permeability-porosity, average pore size-porosity and interfacial area-porosity) and the dependence of the fluid-solid mass transfer coefficient and fluid phase dispersion coefficient on the evolving pore scale variables (average pore size, local Reynolds and Schmidt numbers).
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: February 2, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Mohan Panga, Vemuri Balakotaiah, Murtaza Ziauddin
  • Patent number: 7561998
    Abstract: Disclosed are methods of modeling stimulation treatments, such as designing matrix treatments for subterranean formations penetrated by a wellbore, to enhance hydrocarbon recovery. The modeling methods describe the growth rate and the structure of the dissolution pattern formed due to the injection of a treatment fluid in a porous medium, based on calculating the length scales for dominant transport mechanism(s) and reaction mechanism(s) in the direction of flow lX and the direction transverse to flow lT. Methods of the invention may further include introducing a treatment fluid into the formation, and treating the formation.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: July 14, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Mohan K. R. Panga, Murtaza Ziauddin, Vemuri Balakotaiah
  • Publication number: 20060184346
    Abstract: Disclosed are methods of modeling stimulation treatments, such as designing matrix treatments for subterranean formations penetrated by a wellbore, to enhance hydrocarbon recovery. The modeling methods describe the growth rate and the structure of the dissolution pattern formed due to the injection of a treatment fluid in a porous medium, based on calculating the length scales for dominant transport mechanism(s) and reaction mechanism(s) in the direction of flow lX and the direction transverse to flow lT. Methods of the invention may further include introducing a treatment fluid into the formation, and treating the formation.
    Type: Application
    Filed: December 22, 2005
    Publication date: August 17, 2006
    Inventors: Mohan Panga, Murtaza Ziauddin, Vemuri Balakotaiah
  • Publication number: 20030225521
    Abstract: A new averaged/continuum model is presented for simulation of wormhole formation during matrix stimulation of carbonates.
    Type: Application
    Filed: May 21, 2003
    Publication date: December 4, 2003
    Inventors: Mohan Panga, Vemuri Balakotaiah, Murtaza Ziauddin