木屑低碳储藏与成型行为的协同调控机制  

SYNERGISTIC REGULATION MECHANISM OF GREENHOUSE GAS REDUCTION IN SAWDUST STORAGE AND PELLETIZATION BEHAVIOR

作　　者：肖亚琴 谭梦娇[1] 李辉[1] 杨海平[2] 李昌珠[1] 雷廷宙 Xiao Yaqin;Tan Mengjiao;Li Hui;Yang Haiping;Li Changzhu;Lei Tingzhou(State Key Laboratory of Utilization of Woody Oil Resource,Hunan Academy of Forestry,Changsha 410004,China;State Key Laboratory of Coal Combustion,School of Energy and Power Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Institute of Urban and Rural Mining,Changzhou University,Changzhou 213164,China)

机构地区：[1]湖南省林业科学院木本油料资源利用全国重点实验室,长沙410004 [2]华中科技大学煤燃烧与低碳利用全国重点实验室,武汉430074 [3]常州大学城乡矿山研究院,常州213164

出　　处：《太阳能学报》2025年第4期636-644,共9页Acta Energiae Solaris Sinica

基　　金：长沙市自然科学基金(kq2208101);湖南省自然科学基金(2023JJ10023);国家重点研发计划(2022YFB4201901);湖南省重点研发计划(2023SK2078)。

摘　　要：探究通风状况和添加剂对木屑30 d储藏过程中温室气体排放、成型行为和成型燃料品质的影响,以期揭示木屑储藏中温室气体减控与成型行为的协同调控机制。结果表明:通风状况(含氧量)和添加剂对木屑储藏中CO_(2)累积排放量影响显著,有氧组木屑CO_(2)排放高峰出现在储藏前7 d,而缺氧组在整个周期内数次出现排放高峰。缺氧组30 d的CO_(2)累积排放量为106060.80 mg/kg,是有氧组的3.30倍。使用Ca(OH)_(2)、MgCl_(2)和混合添加剂后CO_(2)累积排放量分别下降17.07%、38.32%、17.73%;同时,添加剂能影响木屑的成型行为,但添加MgCl_(2)不利于成型。因此,改善通风状况和使用Ca(OH)_(2)添加能协同实现储藏中温室气体减控和改善成型行为。The effects of storage atmosphere and additives on greenhouse gas emissions,pelletization behavior,and pellets’quality during the storage of sawdust are investigated to explore the synergistic control mechanism of greenhouse gas reduction and pelletization behavior during the storage of biomass.The results show that the ventilation condition(oxygen content)and additives have significant effects on the cumulative CO_(2) emission during the storage of sawdust.The peak CO_(2) emission of the oxidative group appears in the first 7 days of storage,while the anoxic groups have several emission peaks throughout the cycle.The cumulative CO_(2) emission of the anoxic group is 106060.80 mg/kg after 30 days,which is 3.30 times that of the oxidative group.The cumulative CO_(2) emission are decreased by 17.07%,38.32%,and 17.73%after using Ca(OH)_(2),MgCl_(2),and mixed additives,respectively.Meanwhile,the additives can affect the pelletization behavior of sawdust,but adding MgCl_(2) is not conducive to pelletization.Therefore,improving ventilation conditions and using Ca(OH)_(2) additives can synergistically achieve greenhouse gas reduction,and improve pelletization behavior during storage.

关 键 词：生物质 储藏 添加剂 温室气体 成型燃料 燃烧性能 

分 类 号：TK6[动力工程及工程热物理—生物能]