Investigation of Fusion Characteristics in Co-combustion of Coal With Municipal Sludge

doi:10.12096/j.2096-4528.pgt.19005

Power Generation Technology ›› 2019, Vol. 40 ›› Issue (4): 347-354.DOI: 10.12096/j.2096-4528.pgt.19005

• Energy Clean and Efficient Utilization in Coal-fired Power Systems • Previous Articles Next Articles

Investigation of Fusion Characteristics in Co-combustion of Coal With Municipal Sludge

Debo LI¹(),Chengliang CUI²,Yongjun JIANG²,Weimin SHI²,Pengfei ZHANG²,Fei MO³,Yanfen LIAO³(),Xiaoqian MA³

¹ Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou 510080, Guangdong Province, China
² Huarun Power Plant, Guangzhou 511455, Guangdong Province, China
³ School of Electric Power, South China University of Technology, Guangzhou 510640, Guangdong Province, China

Received:2019-01-10 Published:2019-08-31 Online:2019-09-04
Supported by:
Science and Technology Program of Guangdong Power Company(NYKJXM20180002)

Abstract

Abstract:

Factsage thermodynamic simulation software and XRD analysis method were used to study the ash fusion characteristics of mixed fuel which was mixed by coal and three municipal sludges in different proportions. The results show that when the sludge addition amount does not exceed 10%, because alkaline oxides forms low temperature eutectic and the phosphorus minerals react to form amorphous mineral, the new mineral lead ash fusion temperature to decrease with the proportion of sludge added increasing. The predicted trend of the ash fusion characteristics is basically consistent with the regularity of actual measured data. The reaction between minerals is affected by combustion temperature, and it hardly occurs at low temperature; when the temperature rises, the minerals react with each other to form new minerals.

Key words: sludge, ash fusion temperature, slagging characteristics, mineral

Debo LI,Chengliang CUI,Yongjun JIANG,Weimin SHI,Pengfei ZHANG,Fei MO,Yanfen LIAO,Xiaoqian MA. Investigation of Fusion Characteristics in Co-combustion of Coal With Municipal Sludge[J]. Power Generation Technology, 2019, 40(4): 347-354.

References

1	周旭红, 郑卫星, 祝坚, 等. 污泥焚烧技术的研究进展[J]. 能源环境保护, 2008, (4): 5- 8.
2	韩晓芳, 顾建新, 李燕. 污泥处置现状及新技术探讨[J]. 国外建材科技, 2006, (5): 43- 46.
3	李军, 李媛, G-HohneckerH. 流化床焚烧炉污泥焚烧工艺特性研究[J]. 环境工程, 2004, (3): 76- 79.
4	Zhang Q , Liu H , Zhang X , et al. Novel utilization of conditioner CaO for gas pollutants control during co-combustion of sludge and coal[J]. Fuel, 2017, 206, 541- 545.
5	邓昌亚.不同种类污泥与煤混合燃烧的灰熔融特性研究[D].武汉:华中科技大学, 2016.
6	张成, 王丹, 夏季, 等. 煤粉掺烧干化污泥的燃烧特性及能效分析[J]. 热能动力工程, 2012, (3): 383- 387.
7	相冬文, 李家新, 杨佳龙, 等. 混合煤粉灰熔融特性研究[J]. 钢铁研究, 2016, (6): 1- 5.
8	魏砾宏, 马婷婷, 杨天华, 等. 污泥/煤混烧灰的结渣特性及矿物质转变规律[J]. 中国电机工程学报, 2015, 35 (18): 4697- 4702.
9	牛彩伟.煤粉炉掺烧城市污泥燃烧特性分析[D].太原:中北大学, 2017.
10	Zhang Q , Liu H , Qian Y , et al. The influence of phosphorus on ash fusion temperature of sludge and coal[J]. Fuel Processing Technology, 2013, 110, 218- 226.
11	Pronobis M . Evaluation of the influence of biomass co-combustion on boiler furnace slagging by means of fusibility correlations[J]. Biomass and Bioenergy, 2005, 28 (4): 375- 383.
12	Li W D , Li M , Li W F , et al. Study on the ash fusion temperatures of coal and sewage sludge mixtures[J]. Fuel, 2010, 89 (7): 1566- 1572.
13	殷立宝, 邓昌亚, 张成, 等. 工业、生活污泥与煤混合燃烧的灰熔特性研究[J]. 燃料化学学报, 2014, (9): 1068- 1076.
14	Folgueras M B , Diaz R M , Xiberta J , et al. Influence of sewage sludge addition on coal ash fusion temperatures[J]. Energy & Fuels, 2005, 19 (6): 2562- 2570.
15	Mishra V , Bhowmick T , Chakravarty S , et al. Influence of coal quality on combustion behaviour and mineral phases transformations[J]. Fuel, 2016, 186, 443- 455.
16	Wu X , Zhou T , Chen Y , et al. Mineral melting behavior of chinese blended coal ash under gasification condition[J]. Asia-Pacific Journal of Chemical Engineering, 2011, 6 (2): 220- 230.
17	Wu X , Zhang Z , Chen Y , et al. Main mineral melting behavior and mineral reaction mechanism at molecular level of blended coal ash under gasification condition[J]. Fuel Processing Technology, 2010, 91 (11): 1591- 1600.
18	宋明光, 王群英, 岳益锋, 等. 基于FactSage软件的煤灰熔融行为预测[J]. 洁净煤技术, 2018, (2): 68- 73.
19	?zbayo?lu G , Evren ?zbayo?lu M . A new approach for the prediction of ash fusion temperatures:a case study using Turkish lignites[J]. Fuel, 2006, 85 (4): 545- 552.
20	Guo L , Zhai M , Wang Z , et al. Comparison of bituminous coal and lignite during combustion:Combustion performance, coking and slagging characteristics[J]. Journal of the Energy Institute, 2019, 92 (3): 802- 812.
21	杨建国, 刘志, 赵虹, 等. 配煤煤灰内矿物质转变过程与熔融特性规律[J]. 中国电机工程学报, 2008, 28 (14): 61- 66.
22	Namkung H , Lee Y , Park J , et al. Blending effect of sewage sludge and woody biomass into coal on combustion and ash agglomeration behavior[J]. Fuel, 2018, 225, 266- 276.

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Investigation of Fusion Characteristics in Co-combustion of Coal With Municipal Sludge

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