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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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松木粉气流床气化特性实验研究
, PP. 589-597
Keywords: 松木粉,气流床,气化,固体残渣
Abstract:
？在气流床气化实验装置上进行了松木粉气化特性的研究。考察了温度、氧当量比、水蒸气配比对气体产物的成分、气化特性和固体产物的微观形态及成分的影响,结果表明,随着温度的升高,co与h2浓度显著升高,co2与ch4浓度明显下降,碳转化率、产气率、产气热值有所提高;氧当量比从0.2上升至0.5时,co与h2浓度降低超过10%,co2浓度则上升100%以上,碳转化率提高至92.9%,产气率有所上升,而产气热值则降低超过20%;水蒸气配比从0增大至0.58时,h2/co体积比由0.63提高为1.40,碳转化率、产气率和产气热值均呈现先增大后减小趋势。由sem照片可以看出,固体残渣主要由类球状或块状结构与纤维团聚结构两部分组成。温度升高使残渣颗粒由呈现不规则形状逐渐向球形转化,氧当量比的增大使残渣中类球状颗粒表面孔洞与裂缝明显增多直至破碎。
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