木屑低碳储藏与成型行为的协同调控机制

肖亚琴; 谭梦娇; 李辉; 杨海平; 李昌珠; 雷廷宙

doi:10.19912/j.0254-0096.tynxb.2023-2162

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (4) : 636-644. DOI: 10.19912/j.0254-0096.tynxb.2023-2162

木屑低碳储藏与成型行为的协同调控机制

肖亚琴¹, 谭梦娇¹, 李辉¹, 杨海平², 李昌珠¹, 雷廷宙³

作者信息 +

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

Xiao Yaqin¹, Tan Mengjiao¹, Li Hui¹, Yang Haiping², Li Changzhu¹, Lei Tingzhou³

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文章历史 +

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CO₂累积排放量影响显著,有氧组木屑CO₂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CO₂累积排放量为106060.80 mg/kg,是有氧组的3.30倍。使用Ca（OH）₂、MgCl₂和混合添加剂后CO₂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MgCl₂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。

Abstract

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 CO₂ emission during the storage of sawdust. The peak CO₂ 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 CO₂ 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 CO₂ emission are decreased by 17.07%, 38.32%, and 17.73% after using Ca（OH）₂, MgCl₂, and mixed additives, respectively. Meanwhile, the additives can affect the pelletization behavior of sawdust, but adding MgCl₂ 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.

导出引用

肖亚琴, 谭梦娇, 李辉, 杨海平, 李昌珠, 雷廷宙. 木屑低碳储藏与成型行为的协同调控机制[J]. 太阳能学报. 2025, 46(4): 636-644 https://doi.org/10.19912/j.0254-0096.tynxb.2023-2162

Xiao Yaqin, Tan Mengjiao, Li Hui, Yang Haiping, Li Changzhu, Lei Tingzhou. SYNERGISTIC REGULATION MECHANISM OF GREENHOUSE GAS REDUCTION IN SAWDUST STORAGE AND PELLETIZATION BEHAVIOR[J]. Acta Energiae Solaris Sinica. 2025, 46(4): 636-644 https://doi.org/10.19912/j.0254-0096.tynxb.2023-2162

中图分类号： TK6

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