Patents by Inventor Siva Ariyapadi

Siva Ariyapadi 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: 20160063414
    Abstract: A method includes receiving input corresponding to a proposed configuration of a methanol production facility and identifying a plurality of components utilized to produce methanol at the facility. The method includes determining an alternative configuration that is different from the proposed configuration. Determining the alternative configuration may include identifying resources accessible to a proposed location for the methanol production facility and whether at least one of the resources accessible to the proposed location corresponds to a resource generated by a component identified by the proposed configuration, and determining whether to omit at least one component of the plurality of components identified by the proposed configuration. The method includes omitting the at least one component from the alternative configuration, and generating a report based on the proposed configuration and the alternative configuration.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 3, 2016
    Inventors: Alain GUILLARD, Alexander ROESCH, Erik Jon ANDERSON, Siva ARIYAPADI, Francois FUENTES, Veronika GRONEMANN, Paul Manfred KRIMLOWSKI, Jakob Balthasar PERLWITZ, Krishna Anand PUNWASI, Bharatkumar SONI, Etienne Jean STURM
  • Patent number: 9157043
    Abstract: Systems and methods for processing a hydrocarbon are provided. The method can include gasifying a feedstock within a gasifier to provide a raw syngas. The raw syngas can be processed within a purification system to provide a treated syngas. A first portion of the treated syngas can be converted into a first effluent in a first methanator. The first effluent can be mixed with a second portion of the treated syngas to provide a first mixed effluent. The first mixed effluent can be converted into a second effluent in a second methanator. The second effluent can be mixed with a third portion of the treated syngas to provide a second mixed effluent. The second mixed effluent can be converted into a third effluent in a third methanator.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: October 13, 2015
    Assignee: KELLOGG BROWN & ROOT LLC
    Inventors: Siva Ariyapadi, Philip Shires
  • Patent number: 9157042
    Abstract: Systems and methods for producing synthetic gas are provided. The method can include gasifying a feedstock within a gasifier to provide a raw syngas. The raw syngas can be processed within a purification system to provide a treated syngas, and the purification system can include a flash gas separator. The treated syngas and a first heat transfer medium can be converted into a synthetic gas, a second heat transfer medium, and a methanation condensate. The methanation condensate can be introduced to the flash gas separator.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: October 13, 2015
    Assignee: KELLOGG BROWN & ROOT LLC
    Inventors: Siva Ariyapadi, Philip Shires
  • Patent number: 9132401
    Abstract: Systems and methods for producing synthetic gas are provided. The method can include gasifying a carbonaceous feedstock in the presence of an oxidant within a gasifier to provide a raw syngas. The raw syngas can be cooled within a cooler to provide a cooled syngas. The cooled syngas can be processed within a purification system to provide a treated syngas. The purification system can include a saturator adapted to increase a moisture content of the cooled syngas. The treated syngas and a first heat transfer medium can be introduced to a methanator to provide a synthetic gas, a second heat transfer medium, and a methanation condensate. At least a portion of the methanation condensate can be recycled from the methanator to the saturator.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: September 15, 2015
    Assignee: KELLOG BROWN & ROOT LLC
    Inventors: Siva Ariyapadi, Phillip Shires
  • Patent number: 9012523
    Abstract: Systems and methods for producing a synthetic natural gas are provided. A syngas can be separated into a first syngas, a second syngas, and a third syngas. The first syngas can be methanated to produce a first effluent. The first effluent can be mixed with the second syngas to produce a first mixed effluent. The first mixed effluent can be methanated to produce a second effluent. The second mixed effluent can be methanated to produce a third effluent. The third effluent can be cooled to produce a first cooled effluent. The first cooled effluent can be cooled to produce a synthetic natural gas.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: April 21, 2015
    Assignee: Kellogg Brown & Root LLC
    Inventor: Siva Ariyapadi
  • Publication number: 20150034876
    Abstract: Systems and methods for producing synthetic gas are provided. The method can include gasifying a carbonaceous feedstock in the presence of an oxidant within a gasifier to provide a raw syngas. The raw syngas can be cooled within a cooler to provide a cooled syngas. The cooled syngas can be processed within a purification system to provide a treated syngas. The purification system can include a saturator adapted to increase a moisture content of the cooled syngas. The treated syngas and a first heat transfer medium can be introduced to a methanator to provide a synthetic gas, a second heat transfer medium, and a methanation condensate. At least a portion of the methanation condensate can be recycled from the methanator to the saturator.
    Type: Application
    Filed: October 30, 2012
    Publication date: February 5, 2015
    Applicant: Kellogg Brown & Root LLC
    Inventors: Siva ARIYAPADI, Philip Shires
  • Publication number: 20140117287
    Abstract: Systems and methods for producing synthetic gas are provided. The method can include gasifying a carbonaceous feedstock in the presence of an oxidant within a gasifier to provide a raw syngas. The raw syngas can be cooled within a cooler to provide a cooled syngas. The cooled syngas can be processed within a purification system to provide a treated syngas. The purification system can include a saturator adapted to increase a moisture content of the cooled syngas. The treated syngas and a first heat transfer medium can be introduced to a methanator to provide a synthetic gas, a second heat transfer medium, and a methanation condensate. At least a portion of the methanation condensate can be recycled from the methanator to the saturator.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 1, 2014
    Applicant: Kellogg Brown & Root LLC
    Inventors: Siva ARIYAPADI, Philip Shires
  • Patent number: 8608982
    Abstract: Systems and methods for producing a synthetic gas are provided. A feedstock can be gasified within a gasifier to produce a raw syngas. The raw syngas can be processed within a processing device to produce a processed syngas. The processed syngas can be separated into a vapor phase, an organic phase, and an aqueous phase within a separator. The organic phase can be introduced to the gasifier. The aqueous phase can be introduced to a stripper to provide steam and a condensate, and the steam can then be introduced to the gasifier.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: December 17, 2013
    Assignee: Kellogg Brown & Root LLC
    Inventors: John Abughazaleh, Siva Ariyapadi, David P. Mann
  • Publication number: 20130165535
    Abstract: Systems and methods for producing a synthetic natural gas are provided. A syngas can be separated into a first syngas, a second syngas, and a third syngas. The first syngas can be methanated to produce a first effluent. The first effluent can be mixed with the second syngas to produce a first mixed effluent. The first mixed effluent can be methanated to produce a second effluent. The second mixed effluent can be methanated to produce a third effluent. The third effluent can be cooled to produce a first cooled effluent. The first cooled effluent can be cooled to produce a synthetic natural gas.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 27, 2013
    Applicant: Kellogg Brown & Root LLC
    Inventor: Siva Ariyapadi
  • Patent number: 8382867
    Abstract: Systems and methods for producing synthetic natural gas are provided. The method can include gasifying a carbonaceous feedstock within a gasifier to provide a raw syngas. The raw syngas can be cooled to provide a cooled raw syngas. The cooled raw syngas can be processed in a purification system to provide treated syngas. The purification system can include a flash gas separator in fluid communication with the gasifier and a saturator. The treated syngas can be converted to synthetic natural gas to provide steam, a methanation condensate, and a synthetic natural gas. The methanation condensate can be introduced to the flash gas separator.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: February 26, 2013
    Assignee: Kellogg Brown & Root LLC
    Inventors: Siva Ariyapadi, Philip Shires
  • Patent number: 8377154
    Abstract: A gasification system and method. The system can include a gasifier and a purification unit fluidly coupled to the gasifier, with the purification unit receiving raw syngas from the gasifier and producing waste gas and a syngas product. The system can also include a first reformer fluidly coupled to the purification unit, with the first reformer receiving a first portion of the waste gas and producing reformed hydrocarbon. The system can further include a second reformer having a first inlet fluidly coupled to the purification unit, a second inlet fluidly coupled to the first reformer, and an outlet fluidly coupled to the purification unit. The second inlet can receive the reformed hydrocarbon from the first reformer, and the first inlet can receive a second portion of the waste gas from the purification unit. The second reformer can produce a recovered raw syngas that is directed to the purification unit.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: February 19, 2013
    Assignee: Kellogg Brown & Root LLC
    Inventors: Siva Ariyapadi, Kamalkumar I. Gursahani, Avinash Malhotra
  • Patent number: 8221513
    Abstract: Systems and processes for producing synthesis gas. A carbonaceous feedstock can be combined with one or more low-oxygen carrier fluids having a high heating value. The feedstock and carrier fluid, in the presence of one or more oxidants, can be gasified to provide a synthesis gas. In one or more embodiments, at least a portion of the synthesis gas can be recycled for use as the carrier fluid.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: July 17, 2012
    Assignee: Kellogg Brown & Root LLC
    Inventors: Siva Ariyapadi, John Abughazaleh, Ravindra K. Agrawal
  • Publication number: 20120101323
    Abstract: Systems and methods for producing synthetic natural gas are provided. The method can include gasifying a carbonaceous feedstock within a gasifier to provide a raw syngas. The raw syngas can be cooled to provide a cooled raw syngas. The cooled raw syngas can be processed in a purification system to provide treated syngas. The purification system can include a flash gas separator in fluid communication with the gasifier and a saturator. The treated syngas can be converted to synthetic natural gas to provide steam, a methanation condensate, and a synthetic natural gas. The methanation condensate can be introduced to the flash gas separator.
    Type: Application
    Filed: April 21, 2011
    Publication date: April 26, 2012
    Applicant: KELLOGG BROWN & ROOT LLC
    Inventors: Siva Ariyapadi, Philip Shires
  • Publication number: 20110210292
    Abstract: A gasification system and method. The system can include a gasifier and a purification unit fluidly coupled to the gasifier, with the purification unit receiving raw syngas from the gasifier and producing waste gas and a syngas product. The system can also include a first reformer fluidly coupled to the purification unit, with the first reformer receiving a first portion of the waste gas and producing reformed hydrocarbon. The system can further include a second reformer having a first inlet fluidly coupled to the purification unit, a second inlet fluidly coupled to the first reformer, and an outlet fluidly coupled to the purification unit. The second inlet can receive the reformed hydrocarbon from the first reformer, and the first inlet can receive a second portion of the waste gas from the purification unit. The second reformer can produce a recovered raw syngas that is directed to the purification unit.
    Type: Application
    Filed: May 18, 2010
    Publication date: September 1, 2011
    Applicant: Kellogg Brown & Root LLC
    Inventors: Siva Ariyapadi, Kamalkumar I. Gursahani, Avinash Malhotra
  • Patent number: 7955403
    Abstract: Systems and methods for producing synthetic natural gas are provided. The method can include gasifying a carbonaceous feedstock within a gasifier to provide a raw syngas. The raw syngas can be cooled to provide a cooled raw syngas. The cooled raw syngas can be processed in a purification system to provide treated syngas. The purification system can include a flash gas separator in fluid communication with the gasifier and a saturator. The treated syngas can be converted to synthetic natural gas to provide steam, a methanation condensate, and a synthetic natural gas. The methanation condensate can be introduced to the flash gas separator.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: June 7, 2011
    Assignee: Kellogg Brown & Root LLC
    Inventors: Siva Ariyapadi, Philip Shires
  • Patent number: 7879119
    Abstract: Systems and processes for adjusting hydrogen content of a synthesis gas are provided. At least a portion of carbon monoxide in a syngas can be converted to carbon dioxide to provide a shifted syngas and condensed water. The syngas can have a first hydrogen to carbon monoxide ratio and a first temperature, and the shifted syngas can have a second hydrogen to carbon monoxide ratio and a second temperature, both greater than the first. Heat from the shifted syngas can be at least partially transferred from the shifted syngas to the condensed water to at least partially vaporize the condensed water. The syngas can be at least partially saturated with the at least partially vaporized condensed water. A ratio of the water vapor to syngas can be about 1.0 or less.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: February 1, 2011
    Assignee: Kellogg Brown & Root LLC
    Inventors: John Abughazaleh, Siva Ariyapadi
  • Patent number: 7722690
    Abstract: A process for producing electrical power, chemicals, carbon dioxide, and hydrogen is provided. One or more feedstocks and one or more oxidants can be combined in a fluidized reaction zone heated to a temperature from about 1050° F. to about 1900° F. to provide a synthesis gas comprising carbon dioxide, carbon monoxide and hydrogen. In one or more embodiments, at least a portion of the synthesis gas can be used as a fuel source for one or more turbines to drive one or more electrical generators. In one or more embodiments, at least a portion of the synthesis gas can be introduced to one or more gas converters to provide methanol, alkyl formates, dimethyl ether, ammonia, Fischer-Tropsch products, derivatives thereof or combinations thereof.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: May 25, 2010
    Assignee: Kellogg Brown & Root LLC
    Inventors: Philip Shires, Nicola Salazar, Siva Ariyapadi
  • Publication number: 20100011664
    Abstract: Systems and methods for producing synthetic natural gas are provided. The method can include gasifying a carbonaceous feedstock within a gasifier to provide a raw syngas. The raw syngas can be cooled to provide a cooled raw syngas. The cooled raw syngas can be processed in a purification system to provide treated syngas. The purification system can include a flash gas separator in fluid communication with the gasifier and a saturator. The treated syngas can be converted to synthetic natural gas to provide steam, a methanation condensate, and a synthetic natural gas. The methanation condensate can be introduced to the flash gas separator.
    Type: Application
    Filed: May 8, 2009
    Publication date: January 21, 2010
    Applicant: Kellogg Brown & Root LLC
    Inventors: Siva Ariyapadi, Philip Shires
  • Publication number: 20090188165
    Abstract: Systems and processes for producing synthesis gas. A carbonaceous feedstock can be combined with one or more low-oxygen carrier fluids having a high heating value. The feedstock and carrier fluid, in the presence of one or more oxidants, can be gasified to provide a synthesis gas. In one or more embodiments, at least a portion of the synthesis gas can be recycled for use as the carrier fluid.
    Type: Application
    Filed: January 29, 2008
    Publication date: July 30, 2009
    Inventors: SIVA ARIYAPADI, John Abughazaleh, Ravindra K. Agrawal
  • Publication number: 20090019767
    Abstract: Systems and processes for adjusting hydrogen content of a synthesis gas are provided. At least a portion of carbon monoxide in a syngas can be converted to carbon dioxide to provide a shifted syngas and condensed water. The syngas can have a first hydrogen to carbon monoxide ratio and a first temperature, and the shifted syngas can have a second hydrogen to carbon monoxide ratio and a second temperature, both greater than the first. Heat from the shifted syngas can be at least partially transferred from the shifted syngas to the condensed water to at least partially vaporize the condensed water. The syngas can be at least partially saturated with the at least partially vaporized condensed water. A ratio of the water vapor to syngas can be about 1.0 or less.
    Type: Application
    Filed: July 31, 2007
    Publication date: January 22, 2009
    Inventors: JOHN ABUGHAZALEH, SIVA ARIYAPADI