Influence of cocombustion of coal and biomass on combustion emissions of circulating fluidized bed boiler

Abstract

Abstract:

Abstract:Using the software Aspen Plus, a cocombustion model of biomass and coal in circulating fluidized bed boiler was established. The law of cocombustion emission of biomass and coal under different conditions of the biomasscoal blended ratio, the combustion temperature, the moisture content of the biomass and the airfuel ratio was studied. The results are as follows: Along with increase of the moisture content of biomass, the emissions of combustion produced NO，NO2，SO2，CO and CO2 decrease, and the emissions of SO3 and H2O increase. Along with increase of airfuel ratio, the combustion temperature rises firstly and then falls, and the combustion temperature is highest when the airfuel ratio is 6. Under different combustion temperature, sulfur discharge characteristics are different. The volume fraction of SO2 decreases monotonically when the temperature is rising, and along with increase of the temperature, the volume fraction of NO increases firstly, and then decreases. Along with increase of biomass blended ratio, the emissions of SO2 and NO decrease.

Key words: Key words:coal, biomass, cocombustion, airfuel ratio, combustion temperature, pollutant

YI Zuyao. Influence of cocombustion of coal and biomass on combustion emissions of circulating fluidized bed boiler[J]. Huadian Technology, 2013, 35(12): 73-76.

[1]	HU Changzheng, WANG Yabo, LIU Shengchun. Application of MEA solution in the CO2 capture in biomass power plants and coal-fired power plants [J]. Integrated Intelligent Energy, 2022, 44(6): 78-85.
[2]	ZHANG Dongwang, FAN Haodong, ZHAO Bing, WANG Jialin, GONG Taiyi, ZHANG Man, LI Shiyuan, YANG Hairui, LYU Junfu. Development of biomass power generation technology at home and abroad [J]. Huadian Technology, 2021, 43(3): 70-75.
[3]	CUI Yuanjie, ZHANG Hongbing, HE Heng, CHEN Tiejun, GUO Fan. Research progress of wastewater processed by microalgae [J]. Huadian Technology, 2021, 43(12): 10-16.
[4]	LU Junhui, WANG Suilin, TANG Jinjing, REN Kexin. Review and prospects of carbon capture technology assisted by renewable energy,waste heat and combination of them [J]. Huadian Technology, 2021, 43(11): 97-109.
[5]	ZHOU Yufeng, WANG Xuetao, LIANG Yanzheng, LUO Shaofeng. Research progress of Fe based catalysts for hydrogen-rich gas production from biomass catalytic gasification [J]. Huadian Technology, 2021, 43(10): 31-42.
[6]	ZHANG Kaiping, ZHANG Hongfu, GAO Mingming, WANG Yong, MA Cong. Research progress on biomass power generation in CFB boilers [J]. Huadian Technology, 2021, 43(10): 43-49.
[7]	DAI Ruowei, ZHAO Ruidong, QIN Jianguang, CHEN Tianju, WU Jinhu. Study on co-combustion and gaseous pollutants emission characteristics of pyrolysis semi-coke and lignite by TG-FTIR [J]. Huadian Technology, 2020, 42(7): 28-34.
[8]	LI Yao1，2，3，XU Jie1，2，WANG Yichen1，2，CHEN Gang1，2，YANG Xiaoyan1，2，. Feasibility analysis on applying semi-coke molding technology in civil fuels [J]. Huadian Technology, 2020, 42(7): 57-62.
[9]	CHU Leizhe，ZHANG Yanguo，YAN Jiaoping. Application of a multi-pass circulating fluidized bed biomass boiler in a central heating project [J]. Huadian Technology, 2020, 42(5): 79-82.
[10]	LIU Liansheng, WANG Dongji, DUAN Runze, . A review on the clean heating technology using biomass briquette fuel for rural areas [J]. Huadian Technology, 2020, 42(11): 106-116.
[11]	LAN Fengchun, LI Xiaoyu, LONG Hui. Review of biomass power generation technology coupled with large coal-fired boilers in Europe [J]. Huadian Technology, 2020, 42(10): 88-94.
[12]	ZHANG Shanshan，WU Qiaoling，WANG Renlei，ZHU Yue. Research and application of environmental intelligent supervision system for thermal power plants based on “Internet +” [J]. Huadian Technology, 2020, 42(1): 20-24.
[13]	CHEN Xuanlong1，LIU Sanju2，YANG Tao2. Experiment on the influence of biomass gasification syngas on the load of coalfired power plant [J]. Huadian Technology, 2019, 41(4): 41-46.
[14]	HAN Feng1，ZHANG Yanguo2，YAN Jiaoping1，CONG Kunlin2. Integrated energy service and cooperation modes [J]. Huadian Technology, 2019, 41(11): 1-4.
[15]	WANG Jianli，ZHANG Jinzhu，JI Jinfang，LIANG Xinlei，SHANG Yongqiang，LIU Yawei. Current status and suggestions on biomasscoal coupled power generation technology [J]. Huadian Technology, 2019, 41(11): 32-35.

Influence of cocombustion of coal and biomass on combustion emissions of circulating fluidized bed boiler

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments