Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge

Patel, Nikhil Manubhai

Title: Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge

Abstract

The present invention discloses a gasifier and/or a gasification process that provides a long, uniform temperature zone in the gasifier, regardless of the particle size, chemical composition, and moisture content of the fuel by sandwiching a reduction zones between two oxidation zones. The gasifier and/or gasification process has a char that is more energy-dense and almost devoid of moisture that affords for an additional (or char) oxidation zone with a temperature that is higher than a first oxidation zone which is closer to a evaporation and devolatilization zone. As such, the additional (or char) oxidation zone contributes to augmenting the reduction zone temperature, thereby providing a favorable dual impact in improving syngas composition and near-complete conversion of the tar.

Inventors:: Patel, Nikhil Manubhai

Issue Date:: 2018-07-03

Research Org.:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1462177

Patent Number(s):: 10011792

Application Number:: 13/210,441

Assignee:: Patel, Nikhil

Patent Classifications (CPCs):: C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10K - PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE

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C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
C10J2300/1246 - by external or indirect heating

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10K - PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
C10K1/026 - {by centrifugal forces

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
C10J3/08 - with ash-removal in liquid state
C10J2300/0976 - as steam

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10K - PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
C10K1/024 - {by filtration}

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10J - PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
C10J2300/0946 - Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
C10J2300/0959 - Oxygen
C10J2300/0956 - Air or oxygen enriched air
C10J3/723 - {Controlling or regulating the gasification process}
C10J3/26 - downwardly
C10J2300/093 - Coal
C10J3/22 - Arrangements or dispositions of valves or flues
C10J2300/092 - Wood, cellulose

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DOE Contract Number:: FC26-05NT42465

Resource Type:: Patent

Resource Relation:: Patent File Date: 2011 Aug 16

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 30 DIRECT ENERGY CONVERSION

Citation Formats


                    Patel, Nikhil Manubhai. Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge.  United States: N. p., 2018. 
        Web.

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                    Patel, Nikhil Manubhai. Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge.  United States.

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                    Patel, Nikhil Manubhai. Tue .  
        "Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge".  United States.  https://www.osti.gov/servlets/purl/1462177.

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@article{osti_1462177,

  title        = {Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge},

  author       = {Patel, Nikhil Manubhai},

  abstractNote = {The present invention discloses a gasifier and/or a gasification process that provides a long, uniform temperature zone in the gasifier, regardless of the particle size, chemical composition, and moisture content of the fuel by sandwiching a reduction zones between two oxidation zones. The gasifier and/or gasification process has a char that is more energy-dense and almost devoid of moisture that affords for an additional (or char) oxidation zone with a temperature that is higher than a first oxidation zone which is closer to a evaporation and devolatilization zone. As such, the additional (or char) oxidation zone contributes to augmenting the reduction zone temperature, thereby providing a favorable dual impact in improving syngas composition and near-complete conversion of the tar.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2018},

  month        = {7}

}

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Similar Records

Title: Sandwich gasification process for high-efficiency conversion of carbonaceous fuels to clean syngas with zero residual carbon discharge

Abstract

Citation Formats

Continuous thermal reactor system and method patent, January 1978

Hydrocarbon conversion process with annular guard beds patent, December 1980

Apparatus for gasification of carbonaceous solids patent, June 1981

Apparatus for gasifying solid fuels and wastes patent, January 1982

Swirl burner for partial oxidation process patent, February 1983

Method for using fast fluidized bed dry bottom coal gasification patent, August 1983

Pokehole system for fixed bed gasifier and pokehole unit patent, October 1984

Method for producing fuel gas from organic material, capable of self-sustaining operation patent, July 1985

Fuel gas-producing pyrolysis reactors patent, April 1986

Gasification of coal dust patent, November 1987

Partial oxidation process patent, May 1989

Process for the removal of metal ions from an aqueous medium utilizing a coal gasifier slag composition patent, August 1989

Partial oxidation process of sulfur, nickel, and vanadium-containing fuels patent, August 1989

Interchangeable quench gas injection ring patent, August 1989

Partial oxidation process patent, October 1989

Prevention of formation of nickel subsulfide in partial oxidation of heavy liquid and/or solid fuels patent, March 1990

Three stage process for producing producer gas from combustible waste products patent, June 1991

Method for treating process gas patent, October 1996

Control system for IGCC's patent, November 1997

Cyclic process for oxidation of calcium sulfide patent, July 2000

Down-draft fixed bed gasifier system and use thereof patent, September 2000

Integrated biomass gasification and fuel cell system patent, January 2004

Biomass gasification system and method patent, October 2004

Multi-faceted gasifier and related methods patent, November 2005

Multi-faceted gasifier and related methods patent-application, July 2002

Gasification patent-application, November 2006

Systems and Methods of Converting Fuel patent-application, January 2009

Continuous thermal reactor system and method
patent, January 1978

Hydrocarbon conversion process with annular guard beds
patent, December 1980

Apparatus for gasification of carbonaceous solids
patent, June 1981

Apparatus for gasifying solid fuels and wastes
patent, January 1982

Swirl burner for partial oxidation process
patent, February 1983

Method for using fast fluidized bed dry bottom coal gasification
patent, August 1983

Pokehole system for fixed bed gasifier and pokehole unit
patent, October 1984

Method for producing fuel gas from organic material, capable of self-sustaining operation
patent, July 1985

Fuel gas-producing pyrolysis reactors
patent, April 1986

Gasification of coal dust
patent, November 1987

Partial oxidation process
patent, May 1989

Process for the removal of metal ions from an aqueous medium utilizing a coal gasifier slag composition
patent, August 1989

Partial oxidation process of sulfur, nickel, and vanadium-containing fuels
patent, August 1989

Interchangeable quench gas injection ring
patent, August 1989

Partial oxidation process
patent, October 1989

Prevention of formation of nickel subsulfide in partial oxidation of heavy liquid and/or solid fuels
patent, March 1990

Three stage process for producing producer gas from combustible waste products
patent, June 1991

Method for treating process gas
patent, October 1996

Control system for IGCC's
patent, November 1997

Cyclic process for oxidation of calcium sulfide
patent, July 2000

Down-draft fixed bed gasifier system and use thereof
patent, September 2000

Integrated biomass gasification and fuel cell system
patent, January 2004

Biomass gasification system and method
patent, October 2004

Multi-faceted gasifier and related methods
patent, November 2005

Multi-faceted gasifier and related methods
patent-application, July 2002

Gasification
patent-application, November 2006

Systems and Methods of Converting Fuel
patent-application, January 2009