Numerical modeling of the gasification based biomass co-firing in a 600 MW pulverized coal boiler

被引：59

作者：

Dong, Changqing ^{[1
]}

Yang, Yongping ^{[1
]}

Yang, Rui ^{[1
]}

Zhang, Junjiao ^{[1
]}

机构：

[1] N China Elect Power Univ, Natl Engn Lab Biomass Power Generat Equipment, Beijing 102206, Peoples R China

来源：

APPLIED ENERGY | 2010年 / 87卷 / 09期

关键词：

Biomass; Coal; Co-firing; Nitric oxide (NO); ASH DEPOSITS; THERMAL-CONDUCTIVITY; COMBUSTION; FUEL;

D O I：

10.1016/j.apenergy.2009.05.033

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Gasification based biomass co-firing was an attractive technology for biomass utilization. Compared to directly co-firing of biomass and coal, it might: (1) avoid feeding biomass into boiler, (2) reduce boiler fouling and corrosion problem, and (3) avoid altering ash characteristics. In this paper, CFD modeling of product gas (from biomass gasification) and coal co-firing in a 600 MWe tangential PC boiler was carried out. The results showed that NO, emission was reduced about 50-70% when the product gas was injected through the lowest layer burner. The fouling problem can be reduced with furnace temperature decreasing for co-firing case. The convection heat transfer area should be increased or the co-firing ratio of product gas should be decreased to keep boiler rated capacity. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2834 / 2838

页数：5

共 26 条

[1]

BAKKER RR, 1997, 3 BIOM C AM EN ENV A

[2] Biomass-coal co-combustion: opportunity for affordable renewable energy [J].