摘要
生物炭粉是生物质热解液化工艺的主要副产品之一,其被清除的效果对生物油质量有较大影响。该文以下降管式生物质热解液化装置作为试验平台,试验分析了旋风除尘器对炭粉的除尘效果。该工艺中,进入旋风除尘器的热解气含尘浓度范围一般为35～50g/m3,且浓度随机波动较大;旋风除尘器收集的炭粉粒径范围为0.39～30μm的颗粒占总量的91.29%,几乎没有小于0.39μm和大于40.72μm的颗粒;旋风除尘器的除尘效率不高,一般低于80%。旋风除尘器的除尘效率随热解气中炭粉浓度增加而略有提高。
Biochar powder is one of the principle byproducts from the biomass pyrolysis process and its removal efficiency from the pyrolysis vapor affects the quality of subsequent oil product significantly.In this study,the dust removal characteristic of a cyclone was investigated experimentally on a drop-tube fast pyrolysis reactor.In this reactor,dust concentration in the pyrolysis vapor before entering the cyclone of was about 35-50 g/m3 and varied randomly.Results showed that 91% of particles of char dust collected in the cyclone were between 0.39 and 30 μm in size.And amount of particles which were smaller than 0.39 μm or bigger than 40 μm were negligible.The dust removal efficiency of the cyclone was less than 80%.With the increase of the dust concentration in pyrolysis vapor,the dust removal efficiency of the cyclone increases slightly.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2012年第3期60-64,共5页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家自然科学基金资助(50876056
51076087
51006065)
淄博市科技基金项目(22010GG01083)
关键词
除尘
效率
试验
热解
旋风除尘器
dust control
efficiency
experiments
pyrolysis
cyclone
