Patents by Inventor Anindra Mazumdar
Anindra Mazumdar 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).
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Publication number: 20140026483Abstract: Systems for preheating feedstock are provided. In one embodiment, a system includes at least one energy source disposed in a gasification plant and configured to provide an energy, and a feedstock supply configured to deliver a solid feedstock. The system further includes a feed bin disposed downstream of the feedstock supply, wherein the feed bin is configured to receive the solid feedstock and to provide a dry feedstock. The system additionally includes a gasifier disposed downstream from the feed bin, wherein the gasifier is configured to produce a syngas from the dry feedstock. The system further includes a heating system configured to use the energy to heat the solid feedstock directly, heat the solid feedstock indirectly, or a combination thereof, to remove moisture from the solid feedstock in the feed bin.Type: ApplicationFiled: July 30, 2012Publication date: January 30, 2014Applicant: General Electric CompanyInventors: Sunil Ramabhilkh Mishra, Anindra Mazumdar
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Publication number: 20130330236Abstract: A system includes a gasifier. The gasifier includes a refractory disposed about a gasification chamber and an enclosure disposed about the refractory. The system also includes an ignition device configured to extend into the gasification chamber and to initiate a gasification reaction within the gasification chamber with a refractory temperature of less than approximately 982° C.Type: ApplicationFiled: June 12, 2012Publication date: December 12, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Anindra Mazumdar, Jay Christopher Schleicher
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Patent number: 8580001Abstract: A method of assembling a gasification reactor includes extending at least one reactant injection member into the gasification reactor. The method also includes extending at least one fluid injection conduit including a plurality of fluid injection passages defined therein into the gasification reactor. At least a portion of the at least one fluid injection conduit circumscribes at least a portion of the at least one reactant injection member.Type: GrantFiled: August 21, 2008Date of Patent: November 12, 2013Assignee: General Electric CompanyInventors: Pradeep Thacker, Anindra Mazumdar, Dhaval Mistry
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Patent number: 8562719Abstract: A gas purification system including a hydrogen sulfide (H2S) absorber, a carbon dioxide (CO2) absorber, a flash tank, and a H2S concentrator. The gas purification system may also include a gas path though the H2S absorber prior to the CO2 absorber, a first solvent path sequentially through the CO2 absorber, the H2S absorber, and the H2S concentrator, and a second solvent path sequentially through the CO2 absorber, the flash tank, and the H2S concentrator, wherein the first and second solvent paths flow a common solvent.Type: GrantFiled: July 6, 2010Date of Patent: October 22, 2013Assignee: General Electric CompanyInventors: Anindra Mazumdar, Judith Pauline Oppenheim
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Publication number: 20130247766Abstract: In one embodiment, a gas purification system is provided. The system includes a first section having a first solvent path and a first gas path. The first gas path is configured to flow a stripping gas to remove hydrogen sulfide (H2S) and carbon dioxide (CO2) from the first solvent path in a first vessel to produce a first gas mixture. The system also includes a second section having a second solvent path. The second solvent path is configured to flow a second solvent mixture to remove H2S from the first gas mixture and CO2 from the second solvent mixture within a second vessel. The second solvent mixture has a solvent saturated in CO2 at a first pressure, the second vessel is operated at a second pressure, and the first and second pressures are within approximately 20% of one another.Type: ApplicationFiled: March 23, 2012Publication date: September 26, 2013Applicant: General Electric CompanyInventors: Judith Pauline Oppenheim, Anindra Mazumdar
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Patent number: 8512446Abstract: A method is provided that includes removing carbon dioxide from untreated syngas received from a gasifier to produce a gas stream comprising carbon dioxide, modifying the gas stream by adding carbon monoxide, hydrogen, hydrogen sulfide, or any combination thereof, and providing the gas stream from an acid gas remover to a feed system for use as a conveyance gas to convey a feedstock into the gasifier. Systems implementing these and other methods are also provided.Type: GrantFiled: July 22, 2010Date of Patent: August 20, 2013Assignee: General Electric CompanyInventors: Anindra Mazumdar, John Saunders Stevenson, Sunil Ramabhilakh Mishra
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Patent number: 8500877Abstract: Systems are provided for gasification operations. The systems may use carbonous gas as part of plant operations. The systems may include a gasifier and a solid fuel feeder. The solid fuel feeder is capable of feeding solid fuel in a carbonous carrier gas to the gasifier during a startup period and also during a steady state period of the gasifier.Type: GrantFiled: May 17, 2010Date of Patent: August 6, 2013Assignee: General Electric CompanyInventors: Anindra Mazumdar, Sunil Ramabhilakh Mishra, Rupinder Singh Benipal
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Patent number: 8475571Abstract: In one embodiment, a gas purification system is provided. The system includes a first solvent section having a first carbon dioxide (CO2) absorber, a hydrogen sulfide (H2S) absorber, and a first solvent path that routes a first solvent through the first CO2 absorber and the H2S absorber. The gas purification system also includes a second solvent section having a second carbon dioxide (CO2) absorber and a second solvent path that flows a second solvent through the second CO2 absorber. The gas purification system has a gas path though the first and second solvent sections, wherein the first and second solvent paths are separate from one another, and the first and second solvents are different from one another.Type: GrantFiled: April 23, 2010Date of Patent: July 2, 2013Assignee: General Electric CompanyInventors: Judith Pauline Oppenheim, Anindra Mazumdar
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Patent number: 8439993Abstract: A method of operating a gasification facility includes channeling a conveying fluid at a first temperature through at least one first steam heating device to increase the temperature of the conveying fluid to a second predetermined temperature. The method also includes channeling the conveying fluid at the second predetermined temperature through a second steam heating device to increase the temperature of the conveying fluid to a third predetermined temperature. The method further includes channeling the conveying fluid at the third predetermined temperature to a solids conveyance system. Solids become entrained within the conveying fluid. The method also includes transporting at least a portion of the solids to a gasification system.Type: GrantFiled: September 7, 2012Date of Patent: May 14, 2013Assignee: General Electric CompanyInventors: Sunil Ramabhilakh Mishra, Pradeep S. Thacker, Anindra Mazumdar, Vignesh Venkatraman
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Publication number: 20120324790Abstract: A method of operating a gasification facility includes channeling a conveying fluid at a first temperature through at least one first steam heating device to increase the temperature of the conveying fluid to a second predetermined temperature. The method also includes channeling the conveying fluid at the second predetermined temperature through a second steam heating device to increase the temperature of the conveying fluid to a third predetermined temperature. The method further includes channeling the conveying fluid at the third predetermined temperature to a solids conveyance system. Solids become entrained within the conveying fluid. The method also includes transporting at least a portion of the solids to a gasification system.Type: ApplicationFiled: September 7, 2012Publication date: December 27, 2012Inventors: Sunil Ramabhilakh Mishra, Pradeep S. Thacker, Anindra Mazumdar, Vignesh Venkatraman
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Patent number: 8303695Abstract: Systems are provided for gasification operations. The systems may use carbonous gas as part of plant operations. The systems may include a first compressor configured to compress a carbonous gas and a controller. The controller is configured to control the first compressor to transition from compressing a first carbonous gas to compressing a second carbonous gas during startup of a gasification system.Type: GrantFiled: May 17, 2010Date of Patent: November 6, 2012Assignee: General Electric CompanyInventors: Anindra Mazumdar, Sunil Ramabhilakh Mishra, Rupinder Singh Benipal
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Patent number: 8277523Abstract: A method of operating a gasification facility includes channeling a conveying fluid at a first temperature through at least one first steam heating device to increase the temperature of the conveying fluid to a second predetermined temperature. The method also includes channeling the conveying fluid at the second predetermined temperature through a second steam heating device to increase the temperature of the conveying fluid to a third predetermined temperature. The method further includes channeling the conveying fluid at the third predetermined temperature to a solids conveyance system. Solids become entrained within the conveying fluid. The method also includes transporting at least a portion of the solids to a gasification system.Type: GrantFiled: January 5, 2010Date of Patent: October 2, 2012Assignee: General Electric CompanyInventors: Sunil Ramabhilakh Mishra, Pradeep S. Thacker, Anindra Mazumdar, Vignesh Venkatraman
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Publication number: 20120131853Abstract: Disclosed herein are systems and methods for treating carbon dioxide in an environmentally effective manner. Systems and methods include providing a carbon dioxide enriched stream having CO2 and at least one oxidizable sulfur compound and passing at least some of the carbon dioxide enriched stream to carbon dioxide storage, wherein the method further comprises passing at least some of the carbon dioxide enriched stream to selective sulfur removal during a period of system upset. Selective sulfur removal may comprise treatment with an solid or liquid capable of oxidizing the oxidizable sulfur compound.Type: ApplicationFiled: November 30, 2010Publication date: May 31, 2012Inventors: Pradeep S. THACKER, Anindra Mazumdar
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Publication number: 20120110908Abstract: According to various embodiments, a system includes a first cross-flow filter configured to remove at least a first portion of a liquid from a fuel slurry to increase a concentration of a solid fuel in the fuel slurry. The system also includes a gasifier configured to generate a syngas from the fuel slurry.Type: ApplicationFiled: November 8, 2010Publication date: May 10, 2012Applicant: General Electric CompanyInventors: Anindra Mazumdar, Pradeep Stanley Thacker
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Publication number: 20120017562Abstract: A method is provided that includes removing carbon dioxide from untreated syngas received from a gasifier to produce a gas stream comprising carbon dioxide, modifying the gas stream by adding carbon monoxide, hydrogen, hydrogen sulfide, or any combination thereof, and providing the gas stream from an acid gas remover to a feed system for use as a conveyance gas to convey a feedstock into the gasifier. Systems implementing these and other methods are also provided.Type: ApplicationFiled: July 22, 2010Publication date: January 26, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Anindra Mazumdar, John Saunders Stevenson, Sunil Ramabhilakh Mishra
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Publication number: 20120006200Abstract: A gas purification system including a hydrogen sulfide (H2S) absorber, a carbon dioxide (CO2) absorber, a flash tank, and a H2S concentrator. The gas purification system may also include a gas path though the H2S absorber prior to the CO2 absorber, a first solvent path sequentially through the CO2 absorber, the H2S absorber, and the H2S concentrator, and a second solvent path sequentially through the CO2 absorber, the flash tank, and the H2S concentrator, wherein the first and second solvent paths flow a common solvent.Type: ApplicationFiled: July 6, 2010Publication date: January 12, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Anindra Mazumdar, Judith Pauline Oppenheim
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Publication number: 20110277385Abstract: Systems are provided for gasification operations. The systems may use carbonous gas as part of plant operations. The systems may include a gasifier and a solid fuel feeder. The solid fuel feeder is capable of feeding solid fuel in a carbonous carrier gas to the gasifier during a startup period and also during a steady state period of the gasifier.Type: ApplicationFiled: May 17, 2010Publication date: November 17, 2011Applicant: General Electric CompanyInventors: Anindra Mazumdar, Sunil Ramabhilakh Mishra, Rupinder Singh Benipal
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Publication number: 20110277860Abstract: Systems are provided for gasification operations. The systems may use carbonous gas as part of plant operations. The systems may include a first compressor configured to compress a carbonous gas and a controller. The controller is configured to control the first compressor to transition from compressing a first carbonous gas to compressing a second carbonous gas during startup of a gasification system.Type: ApplicationFiled: May 17, 2010Publication date: November 17, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Anindra Mazumdar, Sunil Ramabhilakh Mishra, Rupinder Singh Benipal
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Publication number: 20110259197Abstract: In one embodiment, a gas purification system is provided. The system includes a first solvent section having a first carbon dioxide (CO2) absorber, a hydrogen sulfide (H2S) absorber, and a first solvent path that routes a first solvent through the first CO2 absorber and the H2S absorber. The gas purification system also includes a second solvent section having a second carbon dioxide (CO2) absorber and a second solvent path that flows a second solvent through the second CO2 absorber. The gas purification system has a gas path though the first and second solvent sections, wherein the first and second solvent paths are separate from one another, and the first and second solvents are different from one another.Type: ApplicationFiled: April 23, 2010Publication date: October 27, 2011Applicant: General Electric CompanyInventors: Judith Pauline Oppenheim, Anindra Mazumdar
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Publication number: 20110162380Abstract: In certain embodiments, a carbon capture integrated gasification combined cycle (IGCC) system includes a supplemental gas turbine engine configured to burn a high-hydrogen syngas to generate power only for an auxiliary load.Type: ApplicationFiled: January 4, 2010Publication date: July 7, 2011Applicant: General Electric CompanyInventors: Pradeep S. Thacker, Anindra Mazumdar