碱金属和碱土金属物种对牛粪燃烧特性的影响。
Effect of alkali and alkaline earth metal species on the combustion characteristics of cattle manures.
作者信息
Yi Baojun, Yuan Qiaoxia, Cao Hongliang, Niu Wenjuan, Wang Ming, Zhu Yao, Yan Shuiping
机构信息
College of Engineering, Huazhong Agricultural University No. 1, Shizishan Street, Hongshan District Wuhan 430070 P. R. China
Key Laboratory of Agricultural Equipment in the Mid-lower Yangtze River, Ministry of Agriculture Wuhan 430070 P. R. China.
出版信息
RSC Adv. 2018 Mar 27;8(21):11705-11713. doi: 10.1039/c8ra00965a. eCollection 2018 Mar 21.
This study investigates the effects of alkali and alkaline earth metal (AAEM) species on the combustion characteristics of cattle manures (CM). Different AAEM species (K, Na, Ca, and Mg) were mixed with CM and deashing CM (D-CM) samples. The combustion characteristics of raw and char samples were compared. The effects of AAEM species on CM char were analyzed based on the structural characteristics of the char sample. Results show that K and Na exert a positive effect, and this effect varies depending on the addition amount. Ca and Mg also exhibit a positive effect, but this effect does not change with the addition amount. The positive effect of K, Na, and Ca is related to the decrease in graphitization degree and increase in specific surface area. However, the positive effect of Mg is negligible. In conclusion, CM can be mixed with fuels containing K or Na in an appropriate ratio. The amount of Ca to be mixed with fuels has no specific requirement, whereas that of Mg to be mixed with fuels should be controlled.
本研究考察了碱金属和碱土金属（AAEM）物种对牛粪（CM）燃烧特性的影响。将不同的AAEM物种（K、Na、Ca和Mg）与CM和脱灰CM（D-CM）样品混合。比较了原样和焦炭样品的燃烧特性。基于焦炭样品的结构特征分析了AAEM物种对CM焦炭的影响。结果表明，K和Na具有积极作用，且这种作用随添加量的不同而变化。Ca和Mg也表现出积极作用，但这种作用不随添加量而改变。K、Na和Ca的积极作用与石墨化程度降低和比表面积增加有关。然而，Mg的积极作用可忽略不计。总之，CM可与含K或Na的燃料按适当比例混合。与燃料混合的Ca量没有特定要求，而与燃料混合的Mg量应加以控制。
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