Experimental Investigation for Co-Combustion Characteristics of Semi-Coke and Bituminous Coal in a 3 MWth Tangential Combustion Facility

被引：16

作者：

Guan, Jingyu ^{[1
,2
]}

Yu, Qiang ^{[2
]}

Sun, Rui ^{[1
]}

Shen, Tao ^{[2
]}

Wang, Minghao ^{[2
]}

Yan, Yanfei ^{[2
]}

Song, Xin ^{[2
]}

机构：

[1] Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China

[2] Harbin Boiler Co Ltd, State Key Lab Efficient & Clean Coal Fired Util B, Harbin 150046, Heilongjiang, Peoples R China

来源：

JOURNAL OF THERMAL SCIENCE | 2020年 / 29卷 / 06期

关键词：

tangential combustion; semi-coke; blending ratio; combustion characteristics; experimental investigation; IGNITION; REACTIVITY; EMISSIONS; PARTICLES; FURNACE; CARBON; BLENDS; CHARS; NOX;

D O I：

10.1007/s11630-020-1187-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An experimental investigation was conducted in a 3 MW pilot-scale tangential combustion facility to explore the co-combustion characteristics of bituminous coal mixed with semi-coke. The thermal gravimetric analyzer (TGA) was used to obtained fuel thermal analysis. The results presented effects of semi-coke blending ratio (BR) on average furnace temperature, ignition temperature, NO emission and combustion efficiency. The excess air coefficient in main combustion sections and outlet were fixed at 0.85 and 1.2 while BR increased from 0% to 50 wt%. The temperature profiles of combustion decreases along the height of furnace while average furnace temperature fluctuates slightly with an increasing BR. The concentration of NO has an increasing tendency with the increasing of BR. The ignition temperature obtained from TGA measurement agreed well with experiment result. In addition, combustion efficiency was not sensitive to BR and decreased slightly with the increasing BR.

引用

页码：1655 / 1662

页数：8

共 27 条

[1] The effect of the textural properties of bituminous coal chars on NO emissions [J].

Arenillas, A ;

Rubiera, F ;

Pis, JJ ;

Jones, JM ;

Williams, A .

FUEL, 1999, 78 (14) :1779-1785

[2] Thermogravimetric determination of the carbon dioxide reactivity of char from some New Zealand coals and its association with the inorganic geochemistry of the parent coal [J].

Beamish, BB ;

Shaw, KJ ;

Rodgers, KA ;

Newman, J .

FUEL PROCESSING TECHNOLOGY, 1998, 53 (03) :243-253

[3] Investigations into the ignition behaviors of pulverized coals and coal blends in a drop tube furnace using flame monitoring techniques [J].

Chi, Tianyang ;

Zhang, Hongjian ;

Yan, Yong ;

Zhou, Hongliang ;

Zheng, Hang .

FUEL, 2010, 89 (03) :743-751

[4] O2/CO2 coal combustion characteristics in a 50 kWth circulating fluidized bed [J].

Duan, Lunbo ;

Zhao, Changsui ;

Zhou, Wu ;

Qu, Chengrui ;

Chen, Xiaoping .

INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL, 2011, 5 (04) :770-776

[5] IGNITION OF COAL PARTICLES - A REVIEW [J].

ESSENHIGH, RH ;

MISRA, MK ;

SHAW, DW .

COMBUSTION AND FLAME, 1989, 77 (01) :3-30

[6] Ignition characteristics of coal blends in an entrained flow furnace [J].

Faundez, J. ;

Arias, B. ;

Rubiera, F. ;

Arenillas, A. ;

Garcia, X. ;

Gordon, A. L. ;

Pis, J. J. .

FUEL, 2007, 86 (14) :2076-2080

[7] Combustion and NOx Emission Characteristics of Shenmu Char in a Circulating Fluidized Bed with Post-combustion [J].

Gong, Zhiqiang ;

Zhou, Tuo ;

Lu, Qinggang ;

Na, Yongjie ;

Sun, Yunkai .

ENERGY & FUELS, 2016, 30 (01) :31-38

[8] A coal-blending model: A tool for better coal blend preparation [J].

Gupta, A. ;

Das, A. K. ;

Chauhan, G. I. S. .

COAL PREPARATION, 2007, 27 (1-3) :28-38

[9]

He YD, 2003, HDB MODERN COAL CHEM, P229

[10] Emission characteristics of NOx and unburned carbon in fly ash during combustion of blends of bituminous/sub-bituminous coals [J].

Ikeda, M ;

Makino, H ;

Morinaga, H ;

Higashiyama, K ;

Kozai, Y .

FUEL, 2003, 82 (15-17) :1851-1857

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