Experimental study on SO2 and NO emission characteristics of microalgae and sawdust mixed combustion

被引：0

作者：

Yue T. ^{[1
]}

Yang J. ^{[1
]}

Du Y. ^{[1
]}

Lei W. ^{[2
]}

Huang T. ^{[2
]}

Bai C. ^{[2
]}

机构：

[1] Key Laboratory of Efficient Utilization of Low and Medium Grade Energy, MOE, School of Mechanical Engineering, Tianjin University, Tianjin

[2] Xi'an Raising Urban Heating Develop Group Co. Ltd., Xi'an

来源：

Yang, Junhong (yangjunhong@tju.edu.cn) | 1600年 / Science Press卷 / 42期

关键词：

Biomass energy; Combustion; Conversion rate; Emissions; Microalgae; Sawdust; SO[!sub]2[!/sub] and NO;

D O I：

10.19912/j.0254-0096.tynxb.2019-0317

中图分类号：

学科分类号：

摘要：

The NBW-A-1000 biomass combustion and post-treatment analysis test system was used to measure the emission characteristics of SO2 and NO in microalgae and sawdust molding fuels online at different temperatures and ratios of mixed combustion. The instantaneous emission concentrations of SO2 and NO and the conversion rates of S and N under different conditions were analyzed. The results showed that compared with microalgae, the peak concentration of SO2 and NO in the combustion of sawdust was very small, and the peak of precipitation appeared later. As the proportion of mixed microalgae increased, the amount of SO2 and S conversion increased. The production amount of NO and the conversion rate of N first increase and finally stabilize. When the mixed molding fuel is burned at 600-900℃, the instantaneous concentration curves of SO2 and NO precipitation have a single peak structure, and the temperature reaches 900-1000℃. The instantaneous concentration curve of SO2 and NO precipitated into a bimodal structure, and the S conversion rate continued to rise as the temperature increased. According to the emission standard of biomass forming fuel pollutants, combined with the requirements of combustion quality, the optimum microalgae ratio and combustion temperature of microalgae and wood chips mixed fuel are 10% and 800℃ respectively, and the instantaneous concentration of SO2 and NO is precipitated under this condition. The peak values are 36.8 mg/m3 and 90.80 mg/m3, respectively. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.

引用

页码：450 / 455

页数：5

共 16 条

[1] LIU W, ZHAO B T, ZHANG H., Emission characteristics and n conversion mechanism of alkali biomass combustion NOx, Journal of Chinese Society of Power Engineering, 36, 4, pp. 294-299, (2016)
[2] MILLEDGE J J, HEAVEN S., Methods of energy extraction from microalgal biomass: A review, Reviews in environmental science & bio/technology, 13, 3, pp. 301-320, (2014)
[3] VERVERIS C, GEORGHIOU K, DANIELIDIS D, Et al., Cellulose, hemicelluloses, lignin and ash content of some organic materials and their suitability for use as paper pulp supplements, Bioresource technology, 98, 2, pp. 296-301, (2007)
[4] MUAZU R I, STEGEMANN J A., Biosolids and microalgae as alternative binders for biomass fuel briquetting, Fuel, 194, pp. 339-347, (2017)
[5] HOSSEINIZANI H, SOKHANSANJ S, LIM J C., Co-pelletization of microalgae Chlorella vulgaris and pine sawdust to produce solid fuels, Fuel processing technology, 177, pp. 129-139, (2018)
[6] STELTE W, HOLM J K, SANADI A R, Et al., Fuel pellets from biomass: the importance of the pelletizing pressure and its dependency on the processing conditions, Fuel, 90, 11, pp. 3285-3290, (2011)
[7] ZHANG H, ZHAO B T, LIU W., Emission characteristics and mechanism of SO2 and CO2 in algal biomass combustion, Journal of combustion science and technology, 22, 3, pp. 262-268, (2016)
[8] BAI J S., Nitrogen and sulfur conversion mechanism during biomass combustion, (2012)
[9] BAI J S, YU C J, LI L M, Et al., Experimental study on the NO and N2O formation characteristics during biomass combustion, Energy & fuels, 27, 1, pp. 515-522, (2013)
[10] FU C G, TIAN Y S, ZHAO L X, Et al., Study on the combustion and NOx emission characteristics of residues after sweet sorghum stalk fermentation, Acta energiae solaris sinica, 37, 5, pp. 1295-1301, (2016)

← 1 2 →