发电技术2024，Vol.45Issue(3)：535-544,10.DOI:10.12096/j.2096-4528.pgt.23031
农林废弃物循环流化床空气气化特性实验研究
Experimental Study on the Air Gasification Characteristics of Agricultural and Forestry Waste in a Circulating Fluidized Bed
摘要
Abstract
[Objectives]The effects of biomass types on the air gasification characteristics of circulating fluidized bed under different parameters were investigated,so as to provide relevant data reference for biomass circulating fluidized bed gasification technology with wide fuel adaptability and biomass gasification coupled coal-fired power generation technology.[Methods]An experimental study of air gasification with air equivalent ratio(ER)and gasification temperature as parameters and agricultural and forestry waste(rice husk,sawdust,corn stalk and rice straw)as feedstock,was carried out on a small atmospheric circulating fluidized bed.[Results]The change patterns of syngas components for rice husk,sawdust,corn stalk and rice straw at different air equivalent ratios are basically the same.When the air equivalent ratio increases,both the low calorific value and cold gas efficiency of syngas for rice husk,sawdust,corn stalk and rice straw have an increasing-decreasing trend.For the rice husk,sawdust and corn stalk,ER=0.20 is the optimum operating condition,and the highest cold gas efficiency is respectively 46.19%,38.07%,and 38.07%.However,for rice straw,ER=0.25 is the optimum operating condition,and the maximum cold gas efficiency can reach 39.55%.The change patterns of the three combustible gases(CH4,CO,H2)in the syngas components for rice husk,sawdust,corn stalk and rice straw is also consistent at different gasification temperatures.When the gasification temperature increases,the low calorific value and cold gas efficiency of syngas for rice husk,sawdust,corn stalk and rice straw also show an increasing-decreasing trend.For rice husk and corn stalk,T=750℃is the optimum operating condition,and the highest cold gas efficiency is respectively 46.19%and 37.71%.However,for sawdust and rice straw,T=760℃is the optimum operating condition,and the maximum cold gas efficiency can reach respectively 38.07%and 37.56%.[Conclusions]It can provide relevant data reference for biomass circulating fluidized bed gasification technology with wide fuel adaptability and biomass gasification coupled coal-fired power generation technology.关键词
农林废弃物/生物质/循环流化床/空气气化/空气当量比Key words
agricultural and forestry waste/biomass/circulating fluidized bed/air gasification/air equivalent ratio分类
能源科技引用本文复制引用
高忠明,朱德敖,陈雨佳,刘三举,王勤辉..农林废弃物循环流化床空气气化特性实验研究[J].发电技术,2024,45(3):535-544,10.基金项目
中央高校基本科研业务费(2022ZFJH004).Project Supported by Fundamental Research Funds for the Central Universities(2022ZFJH004). （2022ZFJH004）
