Nitrogen Transformation during Pyrolysis of Various N-Containing Biowastes with Participation of Mineral Calcium
文献类型：期刊论文
| 作者 | Nan, Hongyan; Xiao, Ziyue; Zhao, Ling; Yang, Fan; Xu, Huacheng; Xu, Xiaoyun; Qiu, Hao |
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2020 |
| 卷号 | 8期号:32页码:12197-12207 |
| 英文摘要 | Nitrogen (N) is one of the nutrients embedded in biowastes and its speciation in solid-liquid-gas pyrolysis products is closely related to environmental issues such as the greenhouse effect, acid rain, and eutrophication. This study investigated the distribution and evolution of N species during pyrolysis of various biowaste matrixes, and the roles of exogenous mineral calcium (CaCl2) in regulating N transformation were explored. The results showed that these biowastes show a similar tendency for the conversion of protein-N (70-90% in biowaste) into char-N (25-35%), oil-N (15-30%), and gas-N (30-60%). Exogenous Ca did not alter total char-N yield, while it promoted the conversion of protein/pyridine-N into pyrrole/quaternary-N, which could mitigate N loss as a cause of eutrophication; Ca catalyzed the cracking of N-containing macromolecules in bio-oil, especially amine, and therefore, drove N migrating from the liquid phase to gas phase. This would benefit the recycle of bio-oil as a fuel. In gas, the significant decrease of harmful HCN accompanied by a remarkable increase of NH3 and N-2 were observed. Detection by thermogravimetric analysis-Fourier transform infrared spectrometry-gas chromatography mass spectrometry confirmed that mineral Ca intensified N-related reactions, including dehydration, decarboxylation, dehydrogenation, and deamination of protein-N. This study could guide pyrolytic production and subsequent application of biochar/biofuel, as well as exhaust gas collection regarding N recovery and pollution control. |
| 源URL | [http://159.226.73.51/handle/332005/19924]  |
| 专题 | 中国科学院南京地理与湖泊研究所 |
| 推荐引用方式 GB/T 7714 | Nan, Hongyan,Xiao, Ziyue,Zhao, Ling,et al. Nitrogen Transformation during Pyrolysis of Various N-Containing Biowastes with Participation of Mineral Calcium[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2020,8(32):12197-12207. |
| APA | Nan, Hongyan.,Xiao, Ziyue.,Zhao, Ling.,Yang, Fan.,Xu, Huacheng.,...&Qiu, Hao.(2020).Nitrogen Transformation during Pyrolysis of Various N-Containing Biowastes with Participation of Mineral Calcium.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,8(32),12197-12207. |
| MLA | Nan, Hongyan,et al."Nitrogen Transformation during Pyrolysis of Various N-Containing Biowastes with Participation of Mineral Calcium".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 8.32(2020):12197-12207. |
入库方式： OAI收割
来源：南京地理与湖泊研究所
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