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Title: Development of the first demonstration CFB boiler for gas and steam cogeneration

Abstract

To solve the shortage of gas and steam supply in the small towns of the country, a new gas steam cogeneration system has been developed. On the basis of the fundamental research on the system, a demonstration gas steam cogeneration system has been designed. As the phase 1 of the project, a 75t/h demonstration CFB boiler for gas steam cogeneration has been erected and operated at Yangzhong Thermal Power Plant of China. This paper introduces the first 75t/h demonstration CFB boiler for gas steam cogeneration. Due to the need of gas steam cogeneration process, the boiler has the features of high temperature cyclone separation, high solid recycle ratio, staged combustion and an external heat exchanger adjusting bed temperature and heat load. The operation results show that the boiler has wide fuel adaptability and the heating value of the coal changes from 14MJ/Kg to 25MJ/Kg. The heat load changes from 85t/h to 28t/h while steam parameter is maintained at the normal conditions. The combustion efficiency of the boiler attain 98%. The boiler design and operation experiences may be a guide to the design and operation of larger CFB units in the future.

Authors:
; ; ; ; ; ;  [1]
  1. Zhejiang Univ., Hangzhou (China). Inst. for Thermal Power Engineering
Publication Date:
OSTI Identifier:
357844
Report Number(s):
CONF-9705116-
ISBN 0-7918-1557-9; TRN: IM9932%%189
Resource Type:
Conference
Resource Relation:
Conference: 14. international conference on fluidized bed combustion, Vancouver (Canada), 11-16 May 1997; Other Information: PBD: 1997; Related Information: Is Part Of Proceedings of the 14. international conference on fluidized bed combustion: Volume 2; Preto, F.D.S. [ed.] [Canada Centre for Mineral and Energy Technology, Ottawa, Ontario (Canada). Energy Technology Centre]; PB: 647 p.
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; FLUIDIZED BED BOILERS; DUAL-PURPOSE POWER PLANTS; STAGED COMBUSTION; FLUIDIZED-BED COMBUSTION; COAL; THERMAL EFFICIENCY; DESIGN; COAL GASIFICATION; FUEL GAS; PROCESS HEAT; POWER GENERATION

Citation Formats

Fang, M, Luo, Z, Li, X, Wang, Q, Shi, Z, Ni, M, and Cen, K. Development of the first demonstration CFB boiler for gas and steam cogeneration. United States: N. p., 1997. Web.
Fang, M, Luo, Z, Li, X, Wang, Q, Shi, Z, Ni, M, & Cen, K. Development of the first demonstration CFB boiler for gas and steam cogeneration. United States.
Fang, M, Luo, Z, Li, X, Wang, Q, Shi, Z, Ni, M, and Cen, K. 1997. "Development of the first demonstration CFB boiler for gas and steam cogeneration". United States.
@article{osti_357844,
title = {Development of the first demonstration CFB boiler for gas and steam cogeneration},
author = {Fang, M and Luo, Z and Li, X and Wang, Q and Shi, Z and Ni, M and Cen, K},
abstractNote = {To solve the shortage of gas and steam supply in the small towns of the country, a new gas steam cogeneration system has been developed. On the basis of the fundamental research on the system, a demonstration gas steam cogeneration system has been designed. As the phase 1 of the project, a 75t/h demonstration CFB boiler for gas steam cogeneration has been erected and operated at Yangzhong Thermal Power Plant of China. This paper introduces the first 75t/h demonstration CFB boiler for gas steam cogeneration. Due to the need of gas steam cogeneration process, the boiler has the features of high temperature cyclone separation, high solid recycle ratio, staged combustion and an external heat exchanger adjusting bed temperature and heat load. The operation results show that the boiler has wide fuel adaptability and the heating value of the coal changes from 14MJ/Kg to 25MJ/Kg. The heat load changes from 85t/h to 28t/h while steam parameter is maintained at the normal conditions. The combustion efficiency of the boiler attain 98%. The boiler design and operation experiences may be a guide to the design and operation of larger CFB units in the future.},
doi = {},
url = {https://www.osti.gov/biblio/357844}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Dec 31 00:00:00 EST 1997},
month = {Wed Dec 31 00:00:00 EST 1997}
}

Conference:
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