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Alternative TitleMicrowave Pyrolysis Characteristics of Poplar Sawdust Under Different Atmosphere
郭良1; 亓伟2; 廖丽芳1; 魏婷1; 许庆利1; 颜涌捷1
Source Publication林产化学与工业
Abstract在CO2和N2气氛下对木屑的微波裂解过程进行研究,结果表明:不同气氛条件对裂解油组成、焦炭性质及气体组成均有影响。20 g木屑在N2气氛下900 W时裂解油产率最大,为28.42%,800W时裂解油中酯类、酚类分别占67.2%和20.5%,酸、醛、醇等含量较低,所得焦炭的BET比表面积为125.44 m^2/g;CO_2通过参与反应影响了裂解油及焦炭的性质,木屑在CO_2气氛下800 W时裂解油产率最大可达到30.05%,与N2气氛下的裂解油细成相比,酯类降至45.8%,酚类提高到26.4%,酸、醛、醇等增加了将近一倍约为(18.4%),而焦炭的BET比表面积升高到136.85 m^2/g,并且CO_2气氛降低了气体产物中H_2的含量同时增加CO的含量。
Other AbstractMicrowave pyrolysis of sawdust under CO2 and N2 atmosphere was investigated respectively. The results showed that different atmosphere had effects on the composition of pyrolytic oil, the nature of coke and the composition of gas. The maximum bio-oil yield(28.42% ) was obtained under N2 atmosphere at 900 W, the percentages of esters and phenols in the oil were 67.2% and 20. 5% at 800W, respectively. The contents of acid, aldehydes and alcohols in pyrolytic product were low. The BET specific surface area of obtained coke was 125.44 rn2/g. CO2 affected the nature of bio-oil and coke by participating in the reaction. The maximum bio-oil yield(30. 05% ) under CO2 atmosphere was obtained at 800 W, the percentage of esters reduced to 45. 8%, and the phenols increased to 26.4%. The contents of acid, aldehydes and alcohols had nearly doubled. The BET specific surface area of coke increased to 136. 85 m2/g. The CO2 atmosphere reduced the H2 content and increased the CO content in gas product.
KeywordN2 CO2 木屑 微波裂解 裂解油 N2 CO2 sawdust microwave pyrolysis pyrolysis oil
DOI10. 3969 /j. issn. 0253-2417. 2017. 06. 012
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Document Type期刊论文
Corresponding Author许庆利
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GB/T 7714
郭良,亓伟,廖丽芳,等. 不同气氛下杨树木屑的微波裂解特性研究[J]. 林产化学与工业,2017,37(6):89-94.
APA 郭良,亓伟,廖丽芳,魏婷,许庆利,&颜涌捷.(2017).不同气氛下杨树木屑的微波裂解特性研究.林产化学与工业,37(6),89-94.
MLA 郭良,et al."不同气氛下杨树木屑的微波裂解特性研究".林产化学与工业 37.6(2017):89-94.
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