62000 m^(3)/h常压循环流化床气化炉优化调整试验  

Optimization and Adjustment Experiment on a 62000 m^(3)/h Atmospheric CFB Gasifier

作　　者：巩时尚 陈禄 陈家泉 郑勇 张智立 沈宝富 Gong Shishang;Chen Lu;Chen Jiaquan;Zheng Yong;Zhang Zhili;Shen Baofu(China Energy Construction Group Northwest Electric Power Test Research Institute Co., Ltd., Xi’an 710054, China;Jimincare Clean Energy Co., Ltd., Yichun 330811,Jiangxi Province, China;China Wuhuan Engineering Co., Ltd., Wuhan 430223, China)

机构地区：[1]中国能源建设集团西北电力试验研究院有限公司,西安710054 [2]济民可信清洁能源有限公司,江西宜春330811 [3]中国五环工程有限公司,武汉430223

出　　处：《发电设备》2021年第5期365-369,共5页Power Equipment

摘　　要：以某62000 m^(3)/h循环流化床气化炉为例,在气化炉运行稳定且不结焦的基础上,研究了原煤粒度分布、炉膛中下部温度、空气煤比、蒸汽煤比及氧气流量对煤气组分、煤气热值和炉渣含碳量的影响,并进行了综合调整。结果表明:调整各影响参数均可以在一定程度上提高煤气热值和有效组分含量,并且可以明显降低炉渣含碳量;同时调整各影响参数,在75%和100%额定负荷下,煤气热值能够提高到6504~6603 kJ/m^(3),炉渣含碳质量分数可降低至13.45%~16.27%。调整效果良好,可为同类型气化炉经济性运行调整提供参考。Taking a 62000 m^(3)/h circulating fluidized bed(CFB)gasifier as the research example,based on the stable operation of the gasifier without coking,the effects of following influence factors on the constituents of coal gas,the heating value of coal gas and the carbon content of slag were studied,such as the size distribution of raw coal particles,the temperature of the lower part in furnace,the ratio of air to coal,the ratio of steam to coal and the oxygen flow rate,after which,a comprehensive adjustment was carried out.Results show that by adjusting each of the influence factors,both of the heating value of coal gas and the contents of effective constituents can be improved to a certain extent,and the carbon content of slag can be reduced significantly.By adjusting all influence factors at the same time,under 75%and 100%rated load,the heating value of coal gas can be increased to 6504-6603 kJ/m^(3),and the carbon mass fraction of slag can be reduced to 13.45%-16.27%.The adjustment presents a good effect,which may serve as a reference for the economic operation adjustment of similar gasifiers.

关 键 词：循环流化床 气化炉 煤气 热值 炉渣含碳量 

分 类 号：TK229.66[动力工程及工程热物理—动力机械及工程] TQ545[化学工程—煤化学工程]