Patents by Inventor Moses Minta

Moses Minta 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: 11112172
    Abstract: Systems and methods are described for removing solidifiable gas from a process gas stream by direct contact with a cold liquid. The process gas stream includes at least gas that is frozen by the cold liquid while one or more other gases of the process gas stream remain in a gaseous state. The process gas stream may include water, and will have a different composition than the cold liquid. The contacting of the cold liquid with the process gas stream may be at a pressure that is less than 200 psia, and optionally less than 100 psia, 50 psia, or even 30 psia, and the solidified gas may be removed from the contacting assembly as a slurry with cold liquid.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: September 7, 2021
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Robert D. Kaminsky, Moses Minta
  • Patent number: 10408534
    Abstract: Systems and methods are described for re-moving solidifiable gas from a process gas stream by direct contact with a cold liquid. The process gas stream includes at least gas that is frozen by the cold liquid while one or more other gases of the process gas stream remain in a gaseous state. The process gas stream may include water, and will have a different composition than the cold liquid. The contacting of the cold liquid with the process gas stream may be at a pressure that is less than 200 psia, and optionally less than 100 psia, 50 psia, or even 30 psia, and the solidified gas may be removed from the contacting assembly as a slurry with cold liquid.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: September 10, 2019
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Robert D. Kaminsky, Moses Minta
  • Publication number: 20190178573
    Abstract: Systems and methods are described for removing solidifiable gas from a process gas stream by direct contact with a cold liquid. The process gas stream includes at least gas that is frozen by the cold liquid while one or more other gases of the process gas stream remain in a gaseous state. The process gas stream may include water, and will have a different composition than the cold liquid. The contacting of the cold liquid with the process gas stream may be at a pressure that is less than 200 psia, and optionally less than 100 psia, 50 psia, or even 30 psia, and the solidified gas may be removed from the contacting assembly as a slurry with cold liquid.
    Type: Application
    Filed: February 19, 2019
    Publication date: June 13, 2019
    Inventors: Robert D. Kaminsky, Moses Minta
  • Patent number: 9903271
    Abstract: Methods and systems for low emission power generation in combined cycle power plants are provided. One system includes a gas turbine system that stoichiometrically combusts a fuel and an oxidant in the presence of a compressed recycle stream to provide mechanical power and a gaseous exhaust. The compressed recycle stream acts as a diluent to moderate the temperature of the combustion process. A boost compressor can boost the pressure of the gaseous exhaust before being compressed into the compressed recycle stream. A purge stream is tapped off from the compressed recycle stream and directed to a C02 separator which discharges C02 and a nitrogen-rich gas which can be expanded in a gas expander to generate additional mechanical power.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: February 27, 2018
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Russell H. Oelfke, Moses Minta
  • Patent number: 9732675
    Abstract: Methods and systems for CO2 separation for low emission power generation in combined-cycle power plants are provided. One system includes a gas turbine system that stoichiometrically combusts a fuel and an oxidant in the presence of a compressed recycle stream to provide mechanical power and a gaseous exhaust. The compressed recycle stream acts as a diluent to moderate the temperature of the combustion process. A boost compressor can boost the pressure of the gaseous exhaust before being compressed into the compressed recycle stream. A purge stream is tapped off from the compressed recycle stream and directed to a CO2 separator configured to absorb CO2 from the purge stream using a potassium carbonate solvent.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: August 15, 2017
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Russell H. Oelfke, Moses Minta
  • Patent number: 9732673
    Abstract: Methods and systems for low emission power generation in hydrocarbon recovery processes are provided. One system includes a gas turbine system configured to stoichiometrically combust a compressed oxidant and a fuel in the presence of a compressed recycle exhaust gas and expand the discharge in an expander to generate a gaseous exhaust stream and drive a main compressor. A boost compressor can receive and increase the pressure of the gaseous exhaust stream and inject it into an evaporative cooling tower configured to use an exhaust nitrogen gas having a low relative humidity as an evaporative cooling media. The cooled gaseous exhaust stream is then compressed and recirculated through the system as a diluent to moderate the temperature of the stoichiometric combustion.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: August 15, 2017
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Robert D. Denton, Himanshu Gupta, Richard Huntington, Moses Minta, Franklin F. Mittricker, Loren K. Starcher
  • Publication number: 20160003529
    Abstract: The described invention relates to processes and systems for treating a gas stream, particularly one rich in methane for forming liquefied natural gas (LNG), said process including: (a) providing a gas stream; (b) providing a refrigerant; (c) compressing said refrigerant to provide a compressed refrigerant; (d) cooling said compressed refrigerant by indirect heat exchange with a cooling fluid; (e) expanding the refrigerant of (d) to cool said refrigerant, thereby producing an expanded, cooled refrigerant; (f) passing said expanded, cooled refrigerant to a first heat exchange area; (g) compressing the gas stream of (a) to a pressure of from greater than or equal to 1,000 psia to less than or equal to 4,500 psia; (h) cooling said compressed gas stream by indirect heat exchange with an external cooling fluid; and heat exchanging the compressed gas stream with the expanded, cooled refrigerant stream.
    Type: Application
    Filed: August 14, 2015
    Publication date: January 7, 2016
    Inventors: Moses MINTA, John B. Stone, Raymond Scott Feist
  • Patent number: 9140490
    Abstract: The described invention relates to processes and systems for treating a gas stream, particularly one rich in methane for forming liquefied natural gas (LNG), the process including: (a) providing a gas stream; (b) providing a refrigerant; (c) compressing the refrigerant to provide a compressed refrigerant; (d) cooling the compressed refrigerant by indirect heat exchange with a cooling fluid; (e) expanding the refrigerant of (d) to cool the refrigerant, thereby producing an expanded, cooled refrigerant; (f) passing the expanded, cooled refrigerant to a first heat exchange area; (g) compressing the gas stream of (a) to a pressure of from greater than or equal to 1,000 psia to less than or equal to 4,500 psia; (h) cooling the compressed gas stream by indirect heat exchange with an external cooling fluid; and heat exchanging the compressed gas stream with the expanded, cooled refrigerant stream.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: September 22, 2015
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Moses Minta, John B. Stone, Raymond Scott Feist
  • Patent number: 9027321
    Abstract: Integrated systems and methods for low emission power generation in a hydrocarbon recovery processes are provided. One system includes a control fuel stream, an oxygen stream, a combustion unit, a first power generate on system and a second power generation system. The combustion unit is configured to receive and combust the control fuel stream and the oxygen stream to produce a gaseous combustion stream having carbon dioxide and water. The first power generation system is configured to generate at least one unit of power and a carbon dioxide stream. The second power generation system is configured to receive thermal energy from the gaseous combustion stream and convert the thermal energy into at least one unit of power.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: May 12, 2015
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Eric D Nelson, Moses Minta, Loren K Starcher, Franklin Mittricker, Omar Angus Sites, Jasper L Dickson
  • Patent number: 8984857
    Abstract: Methods and systems for low emission power generation in hydrocarbon recovery processes are provided. One system includes integrated pressure maintenance and miscible flood systems with low emission power generation. An alternative system provides for low emission power generation, carbon sequestration, enhanced oil recovery (EOR), or carbon dioxide sales using a hot gas expander and external combustor. Another alternative system provides for low emission power generation using a gas power turbine to compress air in the inlet compressor and generate power using hot carbon dioxide laden gas in the expander. Other efficiencies may be gained by incorporating heat cross-exchange, a desalination plant, co-generation, and other features.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: March 24, 2015
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Moses Minta, Franklin F. Mittricker, Peter C. Rasmussen, Loren K. Starcher, Chad C. Rasmussen, James T. Wilkins, Richard W. Meidel, Jr.
  • Publication number: 20140374109
    Abstract: Methods and systems for enhanced carbon dioxide capture in a combined cycle plant are described. A method includes compressing a recycle exhaust gas from a gas turbine system, thereby producing a compressed recycle exhaust gas stream. A purge stream is extracted from the compressed recycle exhaust gas stream. Carbon dioxide is removed from the extracted purge stream using a solid sorbent.
    Type: Application
    Filed: June 11, 2014
    Publication date: December 25, 2014
    Inventors: Robert D. Denton, Himanshu Gupta, Richard A. Huntington, Moses Minta, Franklin F. Mittricker, Loren K. Starcher
  • Patent number: 8616021
    Abstract: The invention relates to a process for liquefying a gas stream rich in methane, said process comprising: (a) providing said gas stream; (b) withdrawing a portion of said gas stream for use as a refrigerant; (c) compressing said refrigerant; (d) cooling said compressed refrigerant with an ambient temperature cooling fluid; (e) subjecting the cooled, compressed refrigerant to supplemental cooling; (f) expanding the refrigerant of (e) to further cool said refrigerant, thereby producing an expanded, supplementally cooled refrigerant; (g) passing said expanded, supplementally cooled refrigerant to a heat exchange area; and, (h) passing said gas stream of (a) through said heat exchange area to cool at least part of said gas stream by indirect heat exchange with said expanded, supplementally cooled refrigerant, thereby forming a cooled gas stream. In further embodiments for improved efficiencies, additional supplemental cooling may be provided after one or more other compression steps.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: December 31, 2013
    Assignee: ExxonMobil Upstream Research Company
    Inventor: Moses Minta
  • Publication number: 20130104562
    Abstract: Methods and systems for low emission power generation in hydrocarbon recovery processes are provided. One system includes a gas turbine system adapted to combust a fuel and an oxidant in the presence of a compressed recycle stream to provide mechanical power and a gaseous exhaust. The compressed recycle stream acts to moderate the temperature of the combustion process. A boost compressor can boost the pressure of the gaseous exhaust before being compressed into the compressed recycle stream. A purge stream may be tapped off from the compressed recycle stream and directed to a C02 separator which discharges C02 and a nitrogen-rich gas, which may be expanded in a gas expander to generate additional mechanical power.
    Type: Application
    Filed: June 9, 2011
    Publication date: May 2, 2013
    Inventors: Russell H. Oelfke, Moses Minta
  • Publication number: 20130104563
    Abstract: Methods and systems for low emission power generation in combined cycle power plants are provided. One system includes a gas turbine system that stoichiometrically combusts a fuel and an oxidant in the presence of a compressed recycle stream to provide mechanical power and a gaseous exhaust. The compressed recycle stream acts as a diluent to moderate the temperature of the combustion process. A boost compressor can boost the pressure of the gaseous exhaust before being compressed into the compressed recycle stream. A purge stream is tapped off from the compressed recycle stream and directed to a C02 separator which discharges C02 and a nitrogen-rich gas which can be expanded in a gas expander to generate additional mechanical power.
    Type: Application
    Filed: June 9, 2011
    Publication date: May 2, 2013
    Inventors: Russell H. Oelfke, Moses Minta
  • Publication number: 20130091853
    Abstract: Methods and systems for low emission power generation in hydrocarbon recovery processes are provided. One system includes a gas turbine system configured to stoichiometrically combust a compressed oxidant and a fuel in the presence of a compressed recycle exhaust gas and expand the discharge in an expander to generate a gaseous exhaust stream and drive a main compressor. A boost compressor can receive and increase the pressure of the gaseous exhaust stream and inject it into an evaporative cooling tower configured to use an exhaust nitrogen gas having a low relative humidity as an evaporative cooling media. The cooled gaseous exhaust stream is then compressed and recirculated through the system as a diluent to moderate the temperature of the stoichiometric combustion.
    Type: Application
    Filed: June 9, 2011
    Publication date: April 18, 2013
    Inventors: Robert D. Denton, Himanshu Gupta, Richard Huntington, Moses Minta, Franklin F. Mittricker, Loren K. Starcher
  • Publication number: 20130086916
    Abstract: Methods and systems for C02 separation for low emission power generation in combined-cycle power plants are provided. One system includes a gas turbine system that stoichiometrically combusts a fuel and an oxidant in the presence of a compressed recycle stream to provide mechanical power and a gaseous exhaust. The compressed recycle stream acts as a diluent to moderate the temperature of the combustion process. A boost compressor can boost the pressure of the gaseous exhaust before being compressed into the compressed recycle stream. A purge stream is tapped off from the compressed recycle stream and directed to a C02 separator configured to absorb C02 from the purge stream using a potassium carbonate solvent.
    Type: Application
    Filed: June 9, 2011
    Publication date: April 11, 2013
    Inventors: Russell H. Oelfke, Moses Minta
  • Publication number: 20130074541
    Abstract: Systems and methods are described for re-moving solidifiable gas from a process gas stream by direct contact with a cold liquid. The process gas stream includes at least gas that is frozen by the cold liquid while one or more other gases of the process gas stream remain in a gaseous state. The process gas stream may include water, and will have a different composition than the cold liquid. The contacting of the cold liquid with the process gas stream may be at a pressure that is less than 200 psia, and optionally less than 100 psia, 50 psia, or even 30 psia, and the solidified gas may be removed from the contacting assembly as a slurry with cold liquid.
    Type: Application
    Filed: January 5, 2011
    Publication date: March 28, 2013
    Inventors: Robert D. Kaminsky, Moses Minta
  • Publication number: 20120247105
    Abstract: Integrated systems and methods for low emission power generation in a hydrocarbon recovery processes are provided. One system includes a control fuel stream, an oxygen stream, a combustion unit, a first power generate on system and a second power generation system. The combustion unit is configured to receive and combust the control fuel stream and the oxygen stream to produce a gaseous combustion stream having carbon dioxide and water. The first power generation system is configured to generate at least one unit of power and a carbon dioxide stream. The second power generation system is configured to receive thermal energy from the gaseous combustion stream and convert the thermal energy into at least one unit of power.
    Type: Application
    Filed: September 17, 2010
    Publication date: October 4, 2012
    Applicant: Exxonmobile Upstream Research Company
    Inventors: Eric D. Nelson, Moses Minta, Loren K. Starcher, Franklin Mittricker, Omar Angus Sites, Jasper L. Dickson
  • Publication number: 20110297346
    Abstract: The present disclosure teaches apparatuses, systems, and methods for improving energy efficiency using high heat capacity materials. Some embodiments include a phase change material (PCMs). Particularly, the systems may include a re-gasification system, a liquefaction system, or an integrated system utilizing a heat exchanger with a regenerator matrix, a shell and tube arrangement, or cross-flow channels (e.g. a plate-fin arrangement) to store cold energy from a liquefied gas in a re-gasification system at a first location for use in a liquefaction process at a second location. The regenerator matrix may include a plurality of PCMs stacked sequentially or may include a continuous phase material comprised of multiple PCMs. Various encapsulation approaches may be utilized. Reliquefaction may be accomplished with such a system.
    Type: Application
    Filed: December 15, 2009
    Publication date: December 8, 2011
    Inventors: Moses Minta, Bruce T. Kelley, William S. Mathews, Eric D. Nelson, Mark E. Ehrhardt
  • Publication number: 20110000221
    Abstract: Methods and systems for low emission power generation in hydrocarbon recovery processes are provided. One system includes integrated pressure maintenance and miscible flood systems with low emission power generation. An alternative system provides for low emission power generation, carbon sequestration, enhanced oil recovery (EOR), or carbon dioxide sales using a hot gas expander and external combustor. Another alternative system provides for low emission power generation using a gas power turbine to compress air in the inlet compressor and generate power using hot carbon dioxide laden gas in the expander. Other efficiencies may be gained by incorporating heat cross-exchange, a desalination plant, co-generation, and other features.
    Type: Application
    Filed: March 25, 2009
    Publication date: January 6, 2011
    Inventors: Moses Minta, Franklin F. Mittricker, Peter Rasmussen, Loren K. Starcher, Chad C. Rasmussen, James T. Wilkins, Richard W. Meidel Jr.