Multi-stage circulating fluidized bed syngas cooling
Abstract
A method and apparatus for cooling hot gas streams in the temperature range 800° C. to 1600° 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.
- Inventors:
- Issue Date:
- Research Org.:
- Southern Company, Birmingham, AL (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1568426
- Patent Number(s):
- 10309727
- Application Number:
- 15/272,667
- 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
- DOE Contract Number:
- NT0000749
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 09/22/2016
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Liu, Guohai, Vimalchand, Pannalal, Guan, Xiaofeng, and Peng, WanWang. Multi-stage circulating fluidized bed syngas cooling. United States: N. p., 2019.
Web.
Liu, Guohai, Vimalchand, Pannalal, Guan, Xiaofeng, & Peng, WanWang. Multi-stage circulating fluidized bed syngas cooling. United States.
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/1568426.
@article{osti_1568426,
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° C. to 1600° 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 04 00:00:00 EDT 2019},
month = {Tue Jun 04 00:00:00 EDT 2019}
}
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