Effect of furnace temperature and oxygen concentration on combustion and CO/NO emission characteristics of sewage sludge

被引：6

作者：

Ni, Zhanshi ^{[1
]}

Zhang, Yaokun ^{[1
]}

Liu, Xiang ^{[1
]}

Shi, Hao ^{[1
]}

Yao, Yurou ^{[1
]}

Tian, Junjian ^{[1
]}

Hu, Peng ^{[1
]}

He, Liqun ^{[1
]}

Lin, Qizhao ^{[1
]}

Meng, Kesheng ^{[2
]}

机构：

[1] Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Jinzhai Rd, Hefei 230026, Peoples R China

[2] Anhui Commun Vocat & Tech Coll, Dept Aviat, 22 Taihu East Rd, Hefei 230051, Anhui, Peoples R China

来源：

RENEWABLE ENERGY | 2024年 / 234卷

关键词：

Sewage sludge; Combustion characteristics; Furnace temperature; Oxygen concentration; Pollutant emission; NITROGEN TRANSFORMATION; PULVERIZED COAL; NO EMISSION; FUEL PRODUCTION; FLUIDIZED-BED; PYROLYSIS; REDUCTION; BIOMASS; WASTE; ASH;

D O I：

10.1016/j.renene.2024.121225

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Addressing the growing energy crisis, the development and utilization of solid waste have become a critical research areas. Sewage sludge, rich in organic matter, can serve as an alternative fuel to coal. This study employs a thermogravimetric analyzer to investigate the combustion characteristics of sewage sludge at heating rates of 10, 20, and 40 degrees C/min. Additionally, a horizontal tube furnace is utilized to analyze the CO and NO emission characteristics during sewage sludge combustion at varying oxygen concentrations and temperatures. Results indicate that at a constant gas velocity, the primary factor influencing combustion characteristics and CO/NO emissions is the composition difference. Higher furnace temperatures lead to lower CO generation and increased combustion efficiency. The conversion of coke-N to NO rises with increasing temperature. Moreover, higher furnace temperatures decrease the conversion of fuel-N to NO. Increasing oxygen concentration reduces the ignition concentration limit of sewage sludge. The lowest NOx emissions were recorded at an oxygen concentration of 21 vol%. This study provides essential data for reducing coal consumption and enhancing the safe and efficient treatment of sewage sludge.

引用

页数：13

共 68 条

[1] Thermal Characterization, Kinetic Analysis and Co-Combustion of Sewage Sludge Coupled with High Ash Ekibastuz Coal [J].

Aidabulov, Madiyar ;

Zhakupov, Daulet ;

Zhunussova, Khabiba ;

Temireyeva, Aknur ;

Shah, Dhawal ;

Sarbassov, Yerbol .

ENERGIES, 2023, 16 (18)

[2] Soot and NO formation in methane-oxygen enriched diffusion flames [J].

Beltrame, A ;

Porshnev, P ;

Merchan-Merchan, W ;

Saveliev, A ;

Fridman, A ;

Kennedy, LA ;

Petrova, O ;

Zhdanok, S ;

Amouri, F ;

Charon, O .

COMBUSTION AND FLAME, 2001, 124 (1-2) :295-310

[3] Devolatilization of a single fuel particle in a fluidized bed under oxy-combustion conditions. Part A: Experimental results [J].

Bu, Changsheng ;

Leckner, Bo ;

Chen, Xiaoping ;

Pallares, David ;

Liu, Daoyin ;

Gomez-Barea, Alberto .

COMBUSTION AND FLAME, 2015, 162 (03) :797-808

[4] Thermal degradations and processes of waste tea and tea leaves via TG-FTIR: Combustion performances, kinetics, thermodynamics, products and optimization [J].

Cai, Haiming ;

Zou, Huihuang ;

Liu, Jingyong ;

Xie, Wuming ;

Kuo, Jiahong ;

Buyukada, Musa ;

Evrendilek, Fatih .

BIORESOURCE TECHNOLOGY, 2018, 268 :715-725

[5] Thermochemical and Toxic Element Behavior during Co-Combustion of Coal and Municipal Sludge [J].

Chen, Yongchun ;

Gui, Herong ;

Xia, Ziwei ;

Chen, Xing ;

Zheng, Liugen .

MOLECULES, 2021, 26 (14)

[6] Incineration of sewage sludge and recovery of residue ash as building material: A valuable option as a consequence of the COVID-19 pandemic [J].

Ducoli, S. ;

Zacco, A. ;

Bontempi, E. .

JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2021, 282

[7] Non-isothermal thermogravimetric kinetic analysis of the thermochemical conversion of human faeces [J].

Fidalgo, B. ;

Chilmeran, M. ;

Somorin, T. ;

Sowale, A. ;

Kolios, A. ;

Parker, A. ;

Williams, L. ;

Collins, M. ;

McAdam, E. J. ;

Tyrrel, S. .

RENEWABLE ENERGY, 2019, 132 :1177-1184

[8] Thermochemical conversion of sewage sludge: A critical review [J].

Gao, Ningbo ;

Kamran, Kamran ;

Quan, Cui ;

Williams, Paul T. .

PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 2020, 79

[9] Combustion and NO Emission of Shenmu Char in a 2 MW Circulating Fluidized Bed [J].

Gong, Zhiqiang ;

Liu, Zhicheng ;

Zhou, Tuo ;

Lu, Qinggang ;

Sun, Yunkai .

ENERGY & FUELS, 2015, 29 (02) :1219-1226

[10] Experimental and Kinetic Study at High Temperatures of the NO Reduction over Eucalyptus Char Produced at Different Heating Rates [J].

Guerrero, Marta ;

Millera, Angela ;

Alzueta, Maria U. ;

Bilbao, Rafael .

ENERGY & FUELS, 2011, 25 (03) :1024-1033

← 1 2 3 4 5 6 7 →