Multi-stage circulating fluidized bed syngas cooling

Liu, Guohai; Vimalchand, Pannalal; Guan, Xiaofeng; Peng, WanWang

Title: Multi-stage circulating fluidized bed syngas cooling

Abstract

A method and apparatus for cooling hot gas streams in the temperature range 800.degree. C. to 1600.degree. C. using multi-stage circulating fluid bed (CFB) coolers is disclosed. The invention relates to cooling the hot syngas from coal gasifiers in which the hot syngas entrains substances that foul, erode and corrode heat transfer surfaces upon contact in conventional coolers. The hot syngas is cooled by extracting and indirectly transferring heat to heat transfer surfaces with circulating inert solid particles in CFB syngas coolers. The CFB syngas coolers are staged to facilitate generation of steam at multiple conditions and hot boiler feed water that are necessary for power generation in an IGCC process. The multi-stage syngas cooler can include internally circulating fluid bed coolers, externally circulating fluid bed coolers and hybrid coolers that incorporate features of both internally and externally circulating fluid bed coolers. Higher process efficiencies can be realized as the invention can handle hot syngas from various types of gasifiers without the need for a less efficient precooling step.

Inventors:: Liu, Guohai; Vimalchand, Pannalal; Guan, Xiaofeng; Peng, WanWang

Issue Date:: 2016-10-11

Research Org.:: Southern Company, Birmingham, AL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1328694

Patent Number(s):: 9464848

Application Number:: 14/010,381

Assignee:: Southern Company (Birmingham, AL)

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
C10J2300/093 - Coal
C10J2300/1884 - with one stream being synthesis gas
C10J2300/1892 - with one stream being water/steam
C10J3/86 - combined with waste-heat boilers

C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10K - PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
C10K3/005 - {by partial oxidation}

F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
F28D13/00 - Heat-exchange apparatus using a fluidised bed
F28D15/00 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls {
F28D2021/0075 - {for syngas or cracked gas cooling systems
F28D21/0001 - {Recuperative heat exchangers}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E20/16 - Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Y02E20/18 - Integrated gasification combined cycle [IGCC]

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DOE Contract Number:: NT0000749

Resource Type:: Patent

Resource Relation:: Patent File Date: 2013 Aug 26

Country of Publication:: United States

Language:: English

Subject:: 01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS

Citation Formats


                    Liu, Guohai, Vimalchand, Pannalal, Guan, Xiaofeng, and Peng, WanWang. Multi-stage circulating fluidized bed syngas cooling.  United States: N. p., 2016. 
        Web.

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                    Liu, Guohai, Vimalchand, Pannalal, Guan, Xiaofeng, & Peng, WanWang. Multi-stage circulating fluidized bed syngas cooling.  United States.

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                    Liu, Guohai, Vimalchand, Pannalal, Guan, Xiaofeng, and Peng, WanWang. Tue .  
        "Multi-stage circulating fluidized bed syngas cooling".  United States.  https://www.osti.gov/servlets/purl/1328694.

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@article{osti_1328694,

  title        = {Multi-stage circulating fluidized bed syngas cooling},

  author       = {Liu, Guohai and Vimalchand, Pannalal and Guan, Xiaofeng and Peng, WanWang},

  abstractNote = {A method and apparatus for cooling hot gas streams in the temperature range 800.degree. C. to 1600.degree. C. using multi-stage circulating fluid bed (CFB) coolers is disclosed. The invention relates to cooling the hot syngas from coal gasifiers in which the hot syngas entrains substances that foul, erode and corrode heat transfer surfaces upon contact in conventional coolers. The hot syngas is cooled by extracting and indirectly transferring heat to heat transfer surfaces with circulating inert solid particles in CFB syngas coolers. The CFB syngas coolers are staged to facilitate generation of steam at multiple conditions and hot boiler feed water that are necessary for power generation in an IGCC process. The multi-stage syngas cooler can include internally circulating fluid bed coolers, externally circulating fluid bed coolers and hybrid coolers that incorporate features of both internally and externally circulating fluid bed coolers. Higher process efficiencies can be realized as the invention can handle hot syngas from various types of gasifiers without the need for a less efficient precooling step.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2016},

  month        = {10}

}

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Title: Multi-stage circulating fluidized bed syngas cooling

Abstract

Citation Formats

In situ gasification of solid hydrocarbon materials in a subterranean formation patent, May 1977

Reducing mode circulating fluid bed combustion patent, April 1986

Fluidized bed heat generator and method of operation patent, December 1987

Process for cooling raw gas obtained from partial oxidation of carbon-containing material patent, June 1990

Method for cleaning gases containing condensable components patent, May 1991

Pressurized boiler plant patent, January 1993

Combustor or gasifier for application in pressurized systems patent, March 1994

Fluidized bed combustion system and method having multiple furnace and recycle sections patent, April 1994

Fluidized bed combustion method utilizing fine and coarse sorbent feed patent, September 1994

Method for making a fluid bed furnace having an external circulation system patent, June 1995

Fluidized bed combustion system and method having a multicompartment variable duty recycle heat exchanger patent, November 1995

System for cooling and cleaning synthesized gas using ahot gravel bed patent, October 1996

Multistage circulating fluidized bed patent, December 1996

Gas Treatment Apparatus and Method patent-application, May 2004

Apparatus, Components and Operating methods for Circulating Fluidized Bed Transport Gasifiers and Reactors patent-application, June 2011

In situ gasification of solid hydrocarbon materials in a subterranean formation
patent, May 1977

Reducing mode circulating fluid bed combustion
patent, April 1986

Fluidized bed heat generator and method of operation
patent, December 1987

Process for cooling raw gas obtained from partial oxidation of carbon-containing material
patent, June 1990

Method for cleaning gases containing condensable components
patent, May 1991

Pressurized boiler plant
patent, January 1993

Combustor or gasifier for application in pressurized systems
patent, March 1994

Fluidized bed combustion system and method having multiple furnace and recycle sections
patent, April 1994

Fluidized bed combustion method utilizing fine and coarse sorbent feed
patent, September 1994

Method for making a fluid bed furnace having an external circulation system
patent, June 1995

Fluidized bed combustion system and method having a multicompartment variable duty recycle heat exchanger
patent, November 1995

System for cooling and cleaning synthesized gas using ahot gravel bed
patent, October 1996

Multistage circulating fluidized bed
patent, December 1996

Gas Treatment Apparatus and Method
patent-application, May 2004

Apparatus, Components and Operating methods for Circulating Fluidized Bed Transport Gasifiers and Reactors
patent-application, June 2011